SemaType.cpp revision 78a542478dd63c2789816dcc1cdab5c9a6eef99b
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" 157cd088e519d7e6caa4c4c12db52e0e4ae35d25c2John McCall#include "clang/Sema/Template.h" 16207f4d8543529221932af82836016a2ef066c917Peter Collingbourne#include "clang/Basic/OpenCL.h" 175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 1836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor#include "clang/AST/ASTMutationListener.h" 19a8f32e0965ee19ecc53cd796e34268377a20357cDouglas Gregor#include "clang/AST/CXXInheritance.h" 20980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 212943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor#include "clang/AST/DeclTemplate.h" 224adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 2351bd803fbdade51d674598ed45da3d54190a656cJohn McCall#include "clang/AST/TypeLocVisitor.h" 24e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 2591a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson#include "clang/Basic/PartialDiagnostic.h" 26d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis#include "clang/Basic/TargetInfo.h" 272792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall#include "clang/Lex/Preprocessor.h" 2819510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 29f85e193739c953358c865005855253af4f68a497John McCall#include "clang/Sema/DelayedDiagnostic.h" 30d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor#include "clang/Sema/Lookup.h" 314994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl#include "llvm/ADT/SmallPtrSet.h" 3287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor#include "llvm/Support/ErrorHandling.h" 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 355db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// isOmittedBlockReturnType - Return true if this declarator is missing a 365db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// return type because this is a omitted return type on a block literal. 378ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redlstatic bool isOmittedBlockReturnType(const Declarator &D) { 385db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getContext() != Declarator::BlockLiteralContext || 398ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl D.getDeclSpec().hasTypeSpecifier()) 405db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 415db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 425db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 0) 43a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^{ ... } 445db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 455db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 1 && 465db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner D.getTypeObject(0).Kind == DeclaratorChunk::Function) 47a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^(int X, float Y) { ... } 485db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 495db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 505db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner} 515db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 522792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall/// diagnoseBadTypeAttribute - Diagnoses a type attribute which 532792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall/// doesn't apply to the given type. 542792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCallstatic void diagnoseBadTypeAttribute(Sema &S, const AttributeList &attr, 552792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall QualType type) { 56108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth bool useExpansionLoc = false; 572792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 582792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall unsigned diagID = 0; 592792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall switch (attr.getKind()) { 602792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall case AttributeList::AT_objc_gc: 612792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagID = diag::warn_pointer_attribute_wrong_type; 62108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth useExpansionLoc = true; 632792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall break; 642792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 6505d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis case AttributeList::AT_objc_ownership: 6605d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis diagID = diag::warn_objc_object_attribute_wrong_type; 67108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth useExpansionLoc = true; 6805d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis break; 6905d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis 702792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall default: 712792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall // Assume everything else was a function attribute. 722792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagID = diag::warn_function_attribute_wrong_type; 732792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall break; 742792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 752792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 762792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall SourceLocation loc = attr.getLoc(); 775f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef name = attr.getName()->getName(); 782792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 792792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall // The GC attributes are usually written with macros; special-case them. 80108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth if (useExpansionLoc && loc.isMacroID() && attr.getParameterName()) { 81834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (attr.getParameterName()->isStr("strong")) { 82834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (S.findMacroSpelling(loc, "__strong")) name = "__strong"; 83834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall } else if (attr.getParameterName()->isStr("weak")) { 84834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (S.findMacroSpelling(loc, "__weak")) name = "__weak"; 852792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 862792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 872792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 882792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall S.Diag(loc, diagID) << name << type; 892792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall} 902792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 91711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// objc_gc applies to Objective-C pointers or, otherwise, to the 92711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// smallest available pointer type (i.e. 'void*' in 'void**'). 93711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define OBJC_POINTER_TYPE_ATTRS_CASELIST \ 94f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_objc_gc: \ 95b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributeList::AT_objc_ownership 96711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 97711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// Function type attributes. 98711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define FUNCTION_TYPE_ATTRS_CASELIST \ 99711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_noreturn: \ 100711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: \ 101711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: \ 102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: \ 103711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: \ 104711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: \ 105414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_regparm: \ 106414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs \ 107711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 108711c52bb20d0c69063b52a99826fb7d2835501f1John McCallnamespace { 109711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// An object which stores processing state for the entire 110711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// GetTypeForDeclarator process. 111711c52bb20d0c69063b52a99826fb7d2835501f1John McCall class TypeProcessingState { 112711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &sema; 113711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 114711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The declarator being processed. 115711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator; 116711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 117711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The index of the declarator chunk we're currently processing. 118711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// May be the total number of valid chunks, indicating the 119711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// DeclSpec. 120711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex; 121711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 122711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Whether there are non-trivial modifications to the decl spec. 123711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool trivial; 124711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1257ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall /// Whether we saved the attributes in the decl spec. 1267ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall bool hasSavedAttrs; 1277ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 128711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The original set of attributes on the DeclSpec. 1295f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<AttributeList*, 2> savedAttrs; 130711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 131711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// A list of attributes to diagnose the uselessness of when the 132711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// processing is complete. 1335f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<AttributeList*, 2> ignoredTypeAttrs; 134711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 135711c52bb20d0c69063b52a99826fb7d2835501f1John McCall public: 136711c52bb20d0c69063b52a99826fb7d2835501f1John McCall TypeProcessingState(Sema &sema, Declarator &declarator) 137711c52bb20d0c69063b52a99826fb7d2835501f1John McCall : sema(sema), declarator(declarator), 138711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex(declarator.getNumTypeObjects()), 1397ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall trivial(true), hasSavedAttrs(false) {} 140711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 141711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &getSema() const { 142711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return sema; 143711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 144711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 145711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &getDeclarator() const { 146711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator; 147711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 148711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 149711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned getCurrentChunkIndex() const { 150711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return chunkIndex; 151711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 152711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 153711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void setCurrentChunkIndex(unsigned idx) { 154711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(idx <= declarator.getNumTypeObjects()); 155711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex = idx; 156711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 157711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 158711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&getCurrentAttrListRef() const { 159711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(chunkIndex <= declarator.getNumTypeObjects()); 160711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (chunkIndex == declarator.getNumTypeObjects()) 161711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return getMutableDeclSpec().getAttributes().getListRef(); 162711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator.getTypeObject(chunkIndex).getAttrListRef(); 163711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 164711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 165711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Save the current set of attributes on the DeclSpec. 166711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void saveDeclSpecAttrs() { 167711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't try to save them multiple times. 1687ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (hasSavedAttrs) return; 169711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 170711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &spec = getMutableDeclSpec(); 171711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (AttributeList *attr = spec.getAttributes().getList(); attr; 172711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr = attr->getNext()) 173711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.push_back(attr); 174711c52bb20d0c69063b52a99826fb7d2835501f1John McCall trivial &= savedAttrs.empty(); 1757ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall hasSavedAttrs = true; 176711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 177711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 178711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Record that we had nowhere to put the given type attribute. 179711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// We will diagnose such attributes later. 180711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void addIgnoredTypeAttr(AttributeList &attr) { 181711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ignoredTypeAttrs.push_back(&attr); 182711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 183711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 184711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Diagnose all the ignored type attributes, given that the 185711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// declarator worked out to the given type. 186711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void diagnoseIgnoredTypeAttrs(QualType type) const { 1875f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner for (SmallVectorImpl<AttributeList*>::const_iterator 188711c52bb20d0c69063b52a99826fb7d2835501f1John McCall i = ignoredTypeAttrs.begin(), e = ignoredTypeAttrs.end(); 1892792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall i != e; ++i) 1902792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(getSema(), **i, type); 191711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 192711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 193711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ~TypeProcessingState() { 194711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (trivial) return; 195711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 196711c52bb20d0c69063b52a99826fb7d2835501f1John McCall restoreDeclSpecAttrs(); 197711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 198711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 199711c52bb20d0c69063b52a99826fb7d2835501f1John McCall private: 200711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &getMutableDeclSpec() const { 201711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return const_cast<DeclSpec&>(declarator.getDeclSpec()); 202711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 203711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 204711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void restoreDeclSpecAttrs() { 2057ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall assert(hasSavedAttrs); 2067ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 2077ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (savedAttrs.empty()) { 2087ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall getMutableDeclSpec().getAttributes().set(0); 2097ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall return; 2107ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall } 2117ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 212711c52bb20d0c69063b52a99826fb7d2835501f1John McCall getMutableDeclSpec().getAttributes().set(savedAttrs[0]); 213711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = savedAttrs.size() - 1; i != e; ++i) 214711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs[i]->setNext(savedAttrs[i+1]); 215711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.back()->setNext(0); 216711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 217711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 218711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 219711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Basically std::pair except that we really want to avoid an 220711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// implicit operator= for safety concerns. It's also a minor 221711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// link-time optimization for this to be a private type. 222711c52bb20d0c69063b52a99826fb7d2835501f1John McCall struct AttrAndList { 223711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The attribute. 224711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &first; 225711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 226711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The head of the list the attribute is currently in. 227711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&second; 228711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 229711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttrAndList(AttributeList &attr, AttributeList *&head) 230711c52bb20d0c69063b52a99826fb7d2835501f1John McCall : first(attr), second(head) {} 231711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 23204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 23304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 234711c52bb20d0c69063b52a99826fb7d2835501f1John McCallnamespace llvm { 235711c52bb20d0c69063b52a99826fb7d2835501f1John McCall template <> struct isPodLike<AttrAndList> { 236711c52bb20d0c69063b52a99826fb7d2835501f1John McCall static const bool value = true; 237711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 238711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 239711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 240711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrIntoList(AttributeList &attr, AttributeList *&head) { 241711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setNext(head); 242711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = &attr; 243711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 244711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 245711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrOutOfList(AttributeList &attr, AttributeList *&head) { 246711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (head == &attr) { 247711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = attr.getNext(); 248711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 24904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 250711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 251711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *cur = head; 252711c52bb20d0c69063b52a99826fb7d2835501f1John McCall while (true) { 253711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(cur && cur->getNext() && "ran out of attrs?"); 254711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (cur->getNext() == &attr) { 255711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur->setNext(attr.getNext()); 256711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 257711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 258711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur = cur->getNext(); 259711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 260711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 261711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 262711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void moveAttrFromListToList(AttributeList &attr, 263711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&fromList, 264711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&toList) { 265711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, fromList); 266711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrIntoList(attr, toList); 267711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 268711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 269711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, 270711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type, bool isDeclSpec, 271711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attrs); 272711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 273711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 274711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 275711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type); 276711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 277711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 278711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type); 279711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 280b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 281f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, QualType &type); 282f85e193739c953358c865005855253af4f68a497John McCall 283711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCPointerTypeAttr(TypeProcessingState &state, 284711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type) { 285f85e193739c953358c865005855253af4f68a497John McCall if (attr.getKind() == AttributeList::AT_objc_gc) 286f85e193739c953358c865005855253af4f68a497John McCall return handleObjCGCTypeAttr(state, attr, type); 287b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis assert(attr.getKind() == AttributeList::AT_objc_ownership); 288b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis return handleObjCOwnershipTypeAttr(state, attr, type); 289711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 290711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 291711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Given that an objc_gc attribute was written somewhere on a 292711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declaration *other* than on the declarator itself (for which, use 293711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributeObjCPointerTypeAttrFromDeclarator), and given that it 294711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// didn't apply in whatever position it was written in, try to move 295711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// it to a more appropriate position. 296711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeObjCPointerTypeAttr(TypeProcessingState &state, 297711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 298711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 299711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 300711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 301711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 302711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 303711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 304711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 305711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 306711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunk.getAttrListRef()); 307711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 308711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 309711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 310711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 311711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 312711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 313711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't walk through these. 314711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 315711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 316711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 317711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto error; 318711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 319711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 320711c52bb20d0c69063b52a99826fb7d2835501f1John McCall error: 3212792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 3222792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(state.getSema(), attr, type); 323711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 324711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 325711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Distribute an objc_gc type attribute that was written on the 326711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator. 327711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 328711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeObjCPointerTypeAttrFromDeclarator(TypeProcessingState &state, 329711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 330711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 331711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 332711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 333711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // objc_gc goes on the innermost pointer to something that's not a 334711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // pointer. 335711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned innermost = -1U; 336711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool considerDeclSpec = true; 337711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 338711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 339711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 340711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 341711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 342711c52bb20d0c69063b52a99826fb7d2835501f1John McCall innermost = i; 343ae278a3a57595349a411f6474938d4dd1b263a0eJohn McCall continue; 344711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 345711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 346711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 347711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 348711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 349711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 350711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 351711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 352711c52bb20d0c69063b52a99826fb7d2835501f1John McCall considerDeclSpec = false; 353711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto done; 354711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 355711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 356711c52bb20d0c69063b52a99826fb7d2835501f1John McCall done: 357711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 358711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // That might actually be the decl spec if we weren't blocked by 359711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // anything in the declarator. 360711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (considerDeclSpec) { 3617ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (handleObjCPointerTypeAttr(state, attr, declSpecType)) { 3627ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // Splice the attribute into the decl spec. Prevents the 3637ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // attribute from being applied multiple times and gives 3647ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // the source-location-filler something to work with. 3657ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall state.saveDeclSpecAttrs(); 3667ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall moveAttrFromListToList(attr, declarator.getAttrListRef(), 3677ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall declarator.getMutableDeclSpec().getAttributes().getListRef()); 368711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3697ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall } 370711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 371711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 372711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, if we found an appropriate chunk, splice the attribute 373711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // into it. 374711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (innermost != -1U) { 375711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, declarator.getAttrListRef(), 376711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getTypeObject(innermost).getAttrListRef()); 377711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 378711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 379711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 380711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, diagnose when we're done building the type. 381711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 382711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 383711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 384711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 385711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written somewhere in a declaration 386711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// *other* than on the declarator itself or in the decl spec. Given 387711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// that it didn't apply in whatever position it was written in, try 388711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// to move it to a more appropriate position. 389711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeFunctionTypeAttr(TypeProcessingState &state, 390711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 391711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 392711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 393711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 394711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to push the attribute from the return type of a function to 395711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the function itself. 396711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 397711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 398711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 399711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 400711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 401711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunk.getAttrListRef()); 402711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 403711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 404711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 405711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 406711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 407711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 408711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 409711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 410711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 411711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 412711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 413711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4142792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(state.getSema(), attr, type); 415711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 416711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 417711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Try to distribute a function type attribute to the innermost 418711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// function chunk or type. Returns true if the attribute was 419711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributed, false if no location was found. 420711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool 421711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrToInnermost(TypeProcessingState &state, 422711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 423711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&attrList, 424711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 425711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 426711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 427711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Put it on the innermost function chunk, if there is one. 428711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 429711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 430711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (chunk.Kind != DeclaratorChunk::Function) continue; 431711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 432711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, attrList, chunk.getAttrListRef()); 433711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 434711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 435711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 436f85e193739c953358c865005855253af4f68a497John McCall if (handleFunctionTypeAttr(state, attr, declSpecType)) { 437f85e193739c953358c865005855253af4f68a497John McCall spliceAttrOutOfList(attr, attrList); 438f85e193739c953358c865005855253af4f68a497John McCall return true; 439f85e193739c953358c865005855253af4f68a497John McCall } 440f85e193739c953358c865005855253af4f68a497John McCall 441f85e193739c953358c865005855253af4f68a497John McCall return false; 442711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 443711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 444711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written in the decl spec. Try to 445711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 446711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 447711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclSpec(TypeProcessingState &state, 448711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 449711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 450711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.saveDeclSpecAttrs(); 451711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 452711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 453711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 454711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.getCurrentAttrListRef(), 455711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 456711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 457711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 458711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 459711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 460711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 461711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 462711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 463711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written on the declarator. Try to 464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 465711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 466711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclarator(TypeProcessingState &state, 467711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 468711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 469711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 470711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 471711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 472711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 473711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getAttrListRef(), 474711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 475711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 476711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 477711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 478711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 479711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 480711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 481711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 482711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 483711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// \brief Given that there are attributes written on the declarator 484711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// itself, try to distribute any type attributes to the appropriate 485711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator chunk. 486711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// 487711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// These are attributes like the following: 488711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f ATTR; 489711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int (f ATTR)(); 490711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// but not necessarily this: 491711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f() ATTR; 492711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeTypeAttrsFromDeclarator(TypeProcessingState &state, 493711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 494711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Collect all the type attributes from the declarator itself. 495711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getDeclarator().getAttributes() && "declarator has no attrs!"); 496711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attr = state.getDeclarator().getAttributes(); 497711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 498711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 499711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr->getNext(); 500711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 501711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr->getKind()) { 502711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 503711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttrFromDeclarator(state, *attr, declSpecType); 504711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 505711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 506f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_ns_returns_retained: 507f85e193739c953358c865005855253af4f68a497John McCall if (!state.getSema().getLangOptions().ObjCAutoRefCount) 508f85e193739c953358c865005855253af4f68a497John McCall break; 509f85e193739c953358c865005855253af4f68a497John McCall // fallthrough 510f85e193739c953358c865005855253af4f68a497John McCall 511711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 512711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclarator(state, *attr, declSpecType); 513711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 514711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 515711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: 516711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 517711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 518711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attr = next)); 519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 520711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 521711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Add a synthetic '()' to a block-literal declarator if it is 522711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// required, given the return type. 523711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void maybeSynthesizeBlockSignature(TypeProcessingState &state, 524711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType declSpecType) { 525711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 526711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 527711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // First, check whether the declarator would produce a function, 528711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // i.e. whether the innermost semantic chunk is a function. 529711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.isFunctionDeclarator()) { 530711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If so, make that declarator a prototyped declarator. 531711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getFunctionTypeInfo().hasPrototype = true; 532711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 533711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 534711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 535da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // If there are any type objects, the type as written won't name a 536da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // function, regardless of the decl spec type. This is because a 537da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // block signature declarator is always an abstract-declarator, and 538da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // abstract-declarators can't just be parentheses chunks. Therefore 539da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // we need to build a function chunk unless there are no type 540da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // objects and the decl spec type is a function. 541711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!declarator.getNumTypeObjects() && declSpecType->isFunctionType()) 542711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 543711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 544da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // Note that there *are* cases with invalid declarators where 545da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // declarators consist solely of parentheses. In general, these 546da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // occur only in failed efforts to make function declarators, so 547da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // faking up the function chunk is still the right thing to do. 548711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 549711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, we need to fake up a function declarator. 550711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation loc = declarator.getSourceRange().getBegin(); 551711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 552711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // ...and *prepend* it to the declarator. 553711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.AddInnermostTypeInfo(DeclaratorChunk::getFunction( 554711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*proto*/ true, 555711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*variadic*/ false, SourceLocation(), 556711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*args*/ 0, 0, 557711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*type quals*/ 0, 55883f51722ed2b8134810cb178f39e44da811de7cdDouglas Gregor /*ref-qualifier*/true, SourceLocation(), 55943f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor /*const qualifier*/SourceLocation(), 56043f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor /*volatile qualifier*/SourceLocation(), 56190ebed0734fac9b464c9bdff53fbf85a86b27f32Douglas Gregor /*mutable qualifier*/SourceLocation(), 5626e5d319b671dbb0ecf70619834aa23c853d17621Sebastian Redl /*EH*/ EST_None, SourceLocation(), 0, 0, 0, 0, 563711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*parens*/ loc, loc, 564711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator)); 565711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 566711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // For consistency, make sure the state still has us as processing 567711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the decl spec. 568711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getCurrentChunkIndex() == declarator.getNumTypeObjects() - 1); 569711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(declarator.getNumTypeObjects()); 57004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 57104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 572930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// \brief Convert the specified declspec to the appropriate type 573930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// object. 5745db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// \param D the declarator containing the declaration specifier. 5755153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// \returns The type described by the declaration specifiers. This function 5765153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// never returns null. 5778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType ConvertDeclSpecToType(TypeProcessingState &state) { 5785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: Should move the logic from DeclSpec::Finish to here for validity 5795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // checking. 580711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 5818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 582711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 583711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const DeclSpec &DS = declarator.getDeclSpec(); 584711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation DeclLoc = declarator.getIdentifierLoc(); 5855db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (DeclLoc.isInvalid()) 5865db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner DeclLoc = DS.getSourceRange().getBegin(); 5871564e3906cad604a42bd131e584751a75589a9c4Chris Lattner 588711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ASTContext &Context = S.Context; 5891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5905db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner QualType Result; 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecType()) { 59296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner case DeclSpec::TST_void: 59396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Result = Context.VoidTy; 59496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner break; 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_char: 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 597fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.CharTy; 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) 599fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.SignedCharTy; 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else { 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Unknown TSS value"); 603fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.UnsignedCharTy; 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 605958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 60664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case DeclSpec::TST_wchar: 60764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 60864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.WCharTy; 60964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) { 610711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 611f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 61264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getSignedWCharType(); 61364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } else { 61464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 61564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis "Unknown TSS value"); 616711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 617f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 61864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getUnsignedWCharType(); 61964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } 62064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 621f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char16: 622f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 623f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 624f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char16Ty; 625f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 626f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char32: 627f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 628f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 629f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char32Ty; 630f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 631d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner case DeclSpec::TST_unspecified: 63262f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner // "<proto1,proto2>" is an objc qualified ID with a missing id. 633097e916b617bb4a069a03764024c310ed42a6424Chris Lattner if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 634c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 635c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**)PQ, 636c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 637c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 63862f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner break; 63962f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner } 6405db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 6415db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // If this is a missing declspec in a block literal return context, then it 6425db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // is inferred from the return statements inside the block. 643f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman // The declspec is always missing in a lambda expr context; it is either 644f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman // specified with a trailing return type or inferred. 645f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman if (declarator.getContext() == Declarator::LambdaExprContext || 646f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman isOmittedBlockReturnType(declarator)) { 6475db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner Result = Context.DependentTy; 6485db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 6495db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 6501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 651d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 652d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 653d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 654d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 655d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 656d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 657d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 658711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().ImplicitInt) { 65935d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 66035d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 6613f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 662711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_declspec) 6633f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 664849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(DS.getSourceRange().getBegin(), "int"); 6653f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 6664310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 667d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 668d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 669d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 670d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 6714310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor // FIXME: Does Microsoft really have the implicit int extension in C++? 672711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().CPlusPlus && 67362ec1f2fd7368542bb926c04797fb07023547694Francois Pichet !S.getLangOptions().MicrosoftExt) { 674711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_missing_type_specifier) 6753f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 6761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 677b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 678b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 679b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 680711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 681b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 682711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_type_specifier) 6833f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 684b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 685d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 6861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 6883cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 6895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 691fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 692fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 693fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 694311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 695311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 696311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 697311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 698ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith if (!S.getLangOptions().C99) 699ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith S.Diag(DS.getTypeSpecWidthLoc(), 700ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith S.getLangOptions().CPlusPlus0x ? 701ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith diag::warn_cxx98_compat_longlong : diag::ext_longlong); 702311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 706fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 707fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 708fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 709311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 710311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 711311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 712311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 713ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith if (!S.getLangOptions().C99) 714ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith S.Diag(DS.getTypeSpecWidthLoc(), 715ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith S.getLangOptions().CPlusPlus0x ? 716ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith diag::warn_cxx98_compat_longlong : diag::ext_longlong); 717311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 720958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7213cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 722aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov case DeclSpec::TST_half: Result = Context.HalfTy; break; 723fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 724958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 725958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 726fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 727958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 728fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 72939d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne 73039d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne if (S.getLangOptions().OpenCL && !S.getOpenCLOptions().cl_khr_fp64) { 73139d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne S.Diag(DS.getTypeSpecTypeLoc(), diag::err_double_requires_fp64); 73239d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne declarator.setInvalidType(true); 73339d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne } 734958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 735fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 739711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 7408f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 741711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7428f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 74399dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_struct: { 747b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeDecl *D = dyn_cast_or_null<TypeDecl>(DS.getRepAsDecl()); 7486e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 7496e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 7506e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 751711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7526e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 7536e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 7546e24726524c2b51b31bb4b622aa678a46b024f42John McCall 755a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 7560daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara S.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeNameLoc()); 757a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 759a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 760a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 762a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 7632191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 7640daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara // In both C and C++, make an ElaboratedType. 7650daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara ElaboratedTypeKeyword Keyword 7660daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); 7670daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara Result = S.getElaboratedType(Keyword, DS.getTypeSpecScope(), Result); 7680daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara 7695153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D->isInvalidDecl()) 770711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 771958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7731a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 7745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 7755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 7765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 777711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 77827940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall if (Result.isNull()) 779711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 78027940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall else if (DeclSpec::ProtocolQualifierListTy PQ 78127940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall = DS.getProtocolQualifiers()) { 782c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *ObjT = Result->getAs<ObjCObjectType>()) { 783c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Silently drop any existing protocol qualifiers. 784c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // TODO: determine whether that's the right thing to do. 785c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjT->getNumProtocols()) 786c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = ObjT->getBaseType(); 787c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 788c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getNumProtocolQualifiers()) 789c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Result, 790c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 791c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 792c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCIdType()) { 793ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 794c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 795c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 796c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 797c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 798c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCClassType()) { 7994262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 800c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy, 801c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 802c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 803c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 8043f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 805711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 8063f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 807711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8083f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 809c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 812958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 8135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 814958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 815e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 816711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 817958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 818730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (!Result->isDependentType()) 819730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (const TagType *TT = Result->getAs<TagType>()) 820711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.DiagnoseUseOfDecl(TT->getDecl(), DS.getTypeSpecTypeLoc()); 821d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 822fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 823958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 824d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 825b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 826d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 827d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 828711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildTypeofExprType(E, DS.getTypeSpecTypeLoc()); 8294b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 8304b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 831711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8324b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 833958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 834d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 8356fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 836b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 8376fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 8386fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 839711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildDecltypeType(E, DS.getTypeSpecTypeLoc()); 840af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 841af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 842711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 843af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 8446fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 8456fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 846ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case DeclSpec::TST_underlyingType: 847db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt Result = S.GetTypeFromParser(DS.getRepAsType()); 848db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt assert(!Result.isNull() && "Didn't get a type for __underlying_type?"); 849ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = S.BuildUnaryTransformType(Result, 850ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType, 851ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DS.getTypeSpecTypeLoc()); 852ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (Result.isNull()) { 853ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = Context.IntTy; 854ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt declarator.setInvalidType(true); 855db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt } 856db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt break; 857db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt 858e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson case DeclSpec::TST_auto: { 859e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 86034b41d939a1328f484511c6002ba2456db879a29Richard Smith Result = Context.getAutoType(QualType()); 861e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 862e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson } 8631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 864a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall case DeclSpec::TST_unknown_anytype: 865a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall Result = Context.UnknownAnyTy; 866a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall break; 867a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall 868b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman case DeclSpec::TST_atomic: 869b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.GetTypeFromParser(DS.getRepAsType()); 870b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman assert(!Result.isNull() && "Didn't get a type for _Atomic?"); 871b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.BuildAtomicType(Result, DS.getTypeSpecTypeLoc()); 872b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (Result.isNull()) { 873b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = Context.IntTy; 874b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman declarator.setInvalidType(true); 875b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 876b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman break; 877b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 878809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 8795153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 880711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8815153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 8825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 884958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 885f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 886711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().Freestanding) 887711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 888fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 88982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 89082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 89182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 892e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::VectorKind VecKind = VectorType::AltiVecVector; 893788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner if (DS.isTypeAltiVecPixel()) 894e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecPixel; 895788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner else if (DS.isTypeAltiVecBool()) 896e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecBool; 897e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson Result = Context.getVectorType(Result, 128/typeSize, VecKind); 898f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 8991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 90047423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis // FIXME: Imaginary. 90147423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis if (DS.getTypeSpecComplex() == DeclSpec::TSC_imaginary) 902711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::err_imaginary_not_supported); 9031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 904711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Before we process any type attributes, synthesize a block literal 905711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // function declarator if necessary. 906711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.getContext() == Declarator::BlockLiteralContext) 907711c52bb20d0c69063b52a99826fb7d2835501f1John McCall maybeSynthesizeBlockSignature(state, Result); 908711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 909711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any type attributes from the decl spec. This may cause the 910711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // list of type attributes to be temporarily saved while the type 911711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // attributes are pushed around. 912711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = DS.getAttributes().getList()) 913711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, Result, true, attrs); 9141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 91596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 91696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 91796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 91896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Enforce C99 6.7.3p2: "Types other than pointer types derived from object 91996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // or incomplete types shall not be restrict-qualified." C++ also allows 92096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // restrict-qualified references. 9210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_restrict) { 9222b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isAnyPointerType() || Result->isReferenceType()) { 9232b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian QualType EltTy; 9242b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isObjCObjectPointerType()) 9252b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result; 9262b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian else 9272b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result->isPointerType() ? 9282b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<PointerType>()->getPointeeType() : 9292b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<ReferenceType>()->getPointeeType(); 9301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 931bad0e656c3732e3539a9cd6525de721d7e47408bDouglas Gregor // If we have a pointer or reference, the pointee must have an object 932bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner // incomplete type. 933bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner if (!EltTy->isIncompleteOrObjectType()) { 934711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 935d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_invalid_pointee) 936d162584991885ab004a02573a73ce06422b921fcChris Lattner << EltTy << DS.getSourceRange(); 9370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 938bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } 939bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } else { 940711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 941711c52bb20d0c69063b52a99826fb7d2835501f1John McCall diag::err_typecheck_invalid_restrict_not_pointer) 942d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 9430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 94496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 94596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 94796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 94896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 94996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 95096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 95196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Get some location to point at, either the C or V location. 95296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner SourceLocation Loc; 9530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 95496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getConstSpecLoc(); 9550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 95696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getVolatileSpecLoc(); 9570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 9580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((TypeQuals & DeclSpec::TQ_restrict) && 9590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Has CVR quals but not C, V, or R?"); 9600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Loc = DS.getRestrictSpecLoc(); 96196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 962711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(Loc, diag::warn_typecheck_function_qualifiers) 963d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 96496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 966f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 967f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 968f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 969f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 970f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 9711a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 9721a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 973f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 9740953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 9750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 9761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 9771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(TypeQuals); 9790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Result = Context.getQualifiedType(Result, Quals); 98096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 982f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 983f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 984f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 985cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 986cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 987cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 9881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 989cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 990cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 991cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 9922865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 9932865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Qs) { 9942865474261a608c7873b87ba4af110d17907896dJohn McCall // Enforce C99 6.7.3p2: "Types other than pointer types derived from 9952865474261a608c7873b87ba4af110d17907896dJohn McCall // object or incomplete types shall not be restrict-qualified." 9962865474261a608c7873b87ba4af110d17907896dJohn McCall if (Qs.hasRestrict()) { 9972865474261a608c7873b87ba4af110d17907896dJohn McCall unsigned DiagID = 0; 9982865474261a608c7873b87ba4af110d17907896dJohn McCall QualType ProblemTy; 9992865474261a608c7873b87ba4af110d17907896dJohn McCall 10002865474261a608c7873b87ba4af110d17907896dJohn McCall const Type *Ty = T->getCanonicalTypeInternal().getTypePtr(); 10012865474261a608c7873b87ba4af110d17907896dJohn McCall if (const ReferenceType *RTy = dyn_cast<ReferenceType>(Ty)) { 10022865474261a608c7873b87ba4af110d17907896dJohn McCall if (!RTy->getPointeeType()->isIncompleteOrObjectType()) { 10032865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10042865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<ReferenceType>()->getPointeeType(); 10052865474261a608c7873b87ba4af110d17907896dJohn McCall } 10062865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) { 10072865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 10082865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10092865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 10102865474261a608c7873b87ba4af110d17907896dJohn McCall } 10112865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const MemberPointerType *PTy = dyn_cast<MemberPointerType>(Ty)) { 10122865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 10132865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10142865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 10152865474261a608c7873b87ba4af110d17907896dJohn McCall } 10162865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (!Ty->isDependentType()) { 10172865474261a608c7873b87ba4af110d17907896dJohn McCall // FIXME: this deserves a proper diagnostic 10182865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10192865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T; 10202865474261a608c7873b87ba4af110d17907896dJohn McCall } 10212865474261a608c7873b87ba4af110d17907896dJohn McCall 10222865474261a608c7873b87ba4af110d17907896dJohn McCall if (DiagID) { 10232865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(Loc, DiagID) << ProblemTy; 10242865474261a608c7873b87ba4af110d17907896dJohn McCall Qs.removeRestrict(); 10252865474261a608c7873b87ba4af110d17907896dJohn McCall } 10262865474261a608c7873b87ba4af110d17907896dJohn McCall } 10272865474261a608c7873b87ba4af110d17907896dJohn McCall 10282865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getQualifiedType(T, Qs); 10292865474261a608c7873b87ba4af110d17907896dJohn McCall} 10302865474261a608c7873b87ba4af110d17907896dJohn McCall 1031075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// \brief Build a paren type including \p T. 1032075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo BagnaraQualType Sema::BuildParenType(QualType T) { 1033075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara return Context.getParenType(T); 1034075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara} 1035075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1036f85e193739c953358c865005855253af4f68a497John McCall/// Given that we're building a pointer or reference to the given 1037f85e193739c953358c865005855253af4f68a497John McCallstatic QualType inferARCLifetimeForPointee(Sema &S, QualType type, 1038f85e193739c953358c865005855253af4f68a497John McCall SourceLocation loc, 1039f85e193739c953358c865005855253af4f68a497John McCall bool isReference) { 1040f85e193739c953358c865005855253af4f68a497John McCall // Bail out if retention is unrequired or already specified. 1041f85e193739c953358c865005855253af4f68a497John McCall if (!type->isObjCLifetimeType() || 1042f85e193739c953358c865005855253af4f68a497John McCall type.getObjCLifetime() != Qualifiers::OCL_None) 1043f85e193739c953358c865005855253af4f68a497John McCall return type; 1044f85e193739c953358c865005855253af4f68a497John McCall 1045f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime implicitLifetime = Qualifiers::OCL_None; 1046f85e193739c953358c865005855253af4f68a497John McCall 1047f85e193739c953358c865005855253af4f68a497John McCall // If the object type is const-qualified, we can safely use 1048f85e193739c953358c865005855253af4f68a497John McCall // __unsafe_unretained. This is safe (because there are no read 1049f85e193739c953358c865005855253af4f68a497John McCall // barriers), and it'll be safe to coerce anything but __weak* to 1050f85e193739c953358c865005855253af4f68a497John McCall // the resulting type. 1051f85e193739c953358c865005855253af4f68a497John McCall if (type.isConstQualified()) { 1052f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 1053f85e193739c953358c865005855253af4f68a497John McCall 1054f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, check whether the static type does not require 1055f85e193739c953358c865005855253af4f68a497John McCall // retaining. This currently only triggers for Class (possibly 1056f85e193739c953358c865005855253af4f68a497John McCall // protocol-qualifed, and arrays thereof). 1057f85e193739c953358c865005855253af4f68a497John McCall } else if (type->isObjCARCImplicitlyUnretainedType()) { 1058f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 10595b76f373d23cc3b292ecf523349aaaa388eea375Argyrios Kyrtzidis 1060ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // If we are in an unevaluated context, like sizeof, skip adding a 1061ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // qualification. 106278a542478dd63c2789816dcc1cdab5c9a6eef99bEli Friedman } else if (S.ExprEvalContexts.back().Context == Sema::Unevaluated) { 1063ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman return type; 1064f85e193739c953358c865005855253af4f68a497John McCall 1065f85e193739c953358c865005855253af4f68a497John McCall // If that failed, give an error and recover using __autoreleasing. 1066f85e193739c953358c865005855253af4f68a497John McCall } else { 1067f85e193739c953358c865005855253af4f68a497John McCall // These types can show up in private ivars in system headers, so 1068f85e193739c953358c865005855253af4f68a497John McCall // we need this to not be an error in those cases. Instead we 1069f85e193739c953358c865005855253af4f68a497John McCall // want to delay. 1070f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 1071ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.DelayedDiagnostics.add( 1072ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman sema::DelayedDiagnostic::makeForbiddenType(loc, 1073ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman diag::err_arc_indirect_no_ownership, type, isReference)); 1074f85e193739c953358c865005855253af4f68a497John McCall } else { 1075ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.Diag(loc, diag::err_arc_indirect_no_ownership) << type << isReference; 1076f85e193739c953358c865005855253af4f68a497John McCall } 1077f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_Autoreleasing; 1078f85e193739c953358c865005855253af4f68a497John McCall } 1079f85e193739c953358c865005855253af4f68a497John McCall assert(implicitLifetime && "didn't infer any lifetime!"); 1080f85e193739c953358c865005855253af4f68a497John McCall 1081f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 1082f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(implicitLifetime); 1083f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getQualifiedType(type, qs); 1084f85e193739c953358c865005855253af4f68a497John McCall} 1085f85e193739c953358c865005855253af4f68a497John McCall 1086cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 1087cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1088cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 1089cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1090cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1091cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 1092cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 1093cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1094cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 1095cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1096cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1097cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 1098cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 10992865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildPointerType(QualType T, 1100cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 1101cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 1102cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 1103cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 1104ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1105cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1106cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1107cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1108c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); 110992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1110f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build pointers to unqualified pointers. 1111f85e193739c953358c865005855253af4f68a497John McCall if (getLangOptions().ObjCAutoRefCount) 1112f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ false); 1113f85e193739c953358c865005855253af4f68a497John McCall 1114cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 11152865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getPointerType(T); 1116cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1117cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1118cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 1119cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1120cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 1121cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1122cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1123cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 1124cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 1125cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1126cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 1127cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1128cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1129cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 1130cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 113154e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 11322865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 113354e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 11349625e44c0252485277a340746ed8ac950686156fDouglas Gregor assert(Context.getCanonicalType(T) != Context.OverloadTy && 11359625e44c0252485277a340746ed8ac950686156fDouglas Gregor "Unresolved overloaded function type"); 11369625e44c0252485277a340746ed8ac950686156fDouglas Gregor 113769d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // C++0x [dcl.ref]p6: 113869d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // If a typedef (7.1.3), a type template-parameter (14.3.1), or a 113969d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // decltype-specifier (7.1.6.2) denotes a type TR that is a reference to a 114069d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // type T, an attempt to create the type "lvalue reference to cv TR" creates 114169d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // the type "lvalue reference to T", while an attempt to create the type 114269d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // "rvalue reference to cv TR" creates the type TR. 114354e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 114454e14c4db764c0636160d26c5bbf491637c83a76John McCall 114554e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 114654e14c4db764c0636160d26c5bbf491637c83a76John McCall // 114754e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 114854e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 114954e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 115054e14c4db764c0636160d26c5bbf491637c83a76John McCall // 115154e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 115254e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 115354e14c4db764c0636160d26c5bbf491637c83a76John McCall // 115454e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 115554e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 115669d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // collapsing of references-to-references as described in C++0x. 115769d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // DR 106 and 540 introduce reference-collapsing into C++98/03. 1158cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1159cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 116033a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 1161cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 1162cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 1163cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 1164cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1165cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1166cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1167f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build references to unqualified pointers. 1168f85e193739c953358c865005855253af4f68a497John McCall if (getLangOptions().ObjCAutoRefCount) 1169f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ true); 1170f85e193739c953358c865005855253af4f68a497John McCall 1171cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 11727c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 11732865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getLValueReferenceType(T, SpelledAsLValue); 11742865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getRValueReferenceType(T); 1175cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1176cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1177e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// Check whether the specified array size makes the array type a VLA. If so, 1178e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// return true, if not, return the size of the array in SizeVal. 1179e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattnerstatic bool isArraySizeVLA(Expr *ArraySize, llvm::APSInt &SizeVal, Sema &S) { 1180e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // If the size is an ICE, it certainly isn't a VLA. 1181e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner if (ArraySize->isIntegerConstantExpr(SizeVal, S.Context)) 1182e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner return false; 1183e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1184e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // If we're in a GNU mode (like gnu99, but not c99) accept any evaluatable 1185e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // value as an extension. 118680d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith if (S.LangOpts.GNUMode && ArraySize->EvaluateAsInt(SizeVal, S.Context)) { 118780d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith S.Diag(ArraySize->getLocStart(), diag::ext_vla_folded_to_constant); 118880d4b55db94db2172a04617d1a80feca6bbcea5cRichard Smith return false; 1189e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner } 1190e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1191e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner return true; 1192e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner} 1193e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1194e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1195cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 1196cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1197cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 1198cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1199cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 12001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 12011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 1202cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1203cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1204cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// array type or, if there is no such entity, the location of the 1205cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have array type. 1206cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1207cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 1208cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1209cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1210cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 1211cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 1212cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 1213cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 12147e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 12150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 12167e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 1217923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (getLangOptions().CPlusPlus) { 1218138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 1219138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 1220138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // type, the (possibly cv-qualified) type void, a function type or an 1221138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 1222138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 1223138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 1224138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 1225138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 1226138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 1227138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1228138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 1229138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1230923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (T->isVoidType()) { 1231923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 1232923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1233923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1234138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1235138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (RequireNonAbstractType(Brackets.getBegin(), T, 1236138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 1237138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1238138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1239923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 1240138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 1241138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 1242923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 1243923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 1244923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1245923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1246cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1247cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 1248cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 1249ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1250cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1251cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 12521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 125334b41d939a1328f484511c6002ba2456db879a29Richard Smith if (T->getContainedAutoType()) { 125434b41d939a1328f484511c6002ba2456db879a29Richard Smith Diag(Loc, diag::err_illegal_decl_array_of_auto) 125534b41d939a1328f484511c6002ba2456db879a29Richard Smith << getPrintableNameForEntity(Entity) << T; 1256e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson return QualType(); 1257e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson } 12581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12596217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 1260cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 1261cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 1262cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 1263cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 1264c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (T->isObjCObjectType()) { 1265c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 1266c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 1267cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 12681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1269806054db6653d29cb0d9692df3612cbcd03d0530John McCall // Do placeholder conversions on the array size expression. 1270806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (ArraySize && ArraySize->hasPlaceholderType()) { 1271806054db6653d29cb0d9692df3612cbcd03d0530John McCall ExprResult Result = CheckPlaceholderExpr(ArraySize); 1272806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (Result.isInvalid()) return QualType(); 1273806054db6653d29cb0d9692df3612cbcd03d0530John McCall ArraySize = Result.take(); 1274806054db6653d29cb0d9692df3612cbcd03d0530John McCall } 1275806054db6653d29cb0d9692df3612cbcd03d0530John McCall 12765e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // Do lvalue-to-rvalue conversions on the array size expression. 1277429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (ArraySize && !ArraySize->isRValue()) { 1278429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultLvalueConversion(ArraySize); 1279429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 1280429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return QualType(); 1281429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley 1282429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ArraySize = Result.take(); 1283429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley } 12845e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall 1285cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 12865e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // TODO: in theory, if we were insane, we could allow contextual 12875e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // conversions to integer type here. 1288cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (ArraySize && !ArraySize->isTypeDependent() && 12891274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1290cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1291cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 1292cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1293cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 12942767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor llvm::APSInt ConstVal(Context.getTypeSize(Context.getSizeType())); 1295cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 1296f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 12977e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 1298f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 1299f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 1300ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()) { 13017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 1302e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner } else if (!T->isDependentType() && !T->isIncompleteType() && 1303e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner !T->isConstantSizeType()) { 1304e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with an element type that has a non-constant-size is a VLA. 1305e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 1306e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner } else if (isArraySizeVLA(ArraySize, ConstVal, *this)) { 1307e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with a non-ICE size is a VLA. We accept any expression 1308e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // that we can fold to a non-zero positive value as an extension. 13097e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 1310cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 1311cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 1312cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 1313923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 1314b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth if (Entity) 1315b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_decl_negative_array_size) 1316b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << getPrintableNameForEntity(Entity) << ArraySize->getSourceRange(); 1317b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth else 1318b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_typecheck_negative_array_size) 1319b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << ArraySize->getSourceRange(); 1320923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1321923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1322923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 132302024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 132402024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 132502024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor Diag(ArraySize->getLocStart(), 132602024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 132702024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 1328923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 132920cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne 133020cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne if (ASM == ArrayType::Static) { 133120cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne Diag(ArraySize->getLocStart(), 133220cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne diag::warn_typecheck_zero_static_array_size) 133320cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne << ArraySize->getSourceRange(); 133420cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne ASM = ArrayType::Normal; 133520cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne } 13362767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor } else if (!T->isDependentType() && !T->isVariablyModifiedType() && 13372767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor !T->isIncompleteType()) { 13382767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor // Is the array too large? 13392767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor unsigned ActiveSizeBits 13402767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor = ConstantArrayType::getNumAddressingBits(Context, T, ConstVal); 13412767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) 13422767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_too_large) 13432767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ConstVal.toString(10) 13442767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ArraySize->getSourceRange(); 13451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 13462767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 134746a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 1348cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1349af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 1350af40776922bc5c28e740adb0342faa09f35b0068David Chisnall if (!getLangOptions().C99) { 13510fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor if (T->isVariableArrayType()) { 13520fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Prohibit the use of non-POD types in VLAs. 1353f85e193739c953358c865005855253af4f68a497John McCall QualType BaseT = Context.getBaseElementType(T); 1354204ce17e0cfd9bbe229627e1e5a20c3f2f587c8cDouglas Gregor if (!T->isDependentType() && 1355f85e193739c953358c865005855253af4f68a497John McCall !BaseT.isPODType(Context) && 1356f85e193739c953358c865005855253af4f68a497John McCall !BaseT->isObjCLifetimeType()) { 13570fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::err_vla_non_pod) 1358f85e193739c953358c865005855253af4f68a497John McCall << BaseT; 13590fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor return QualType(); 13600fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } 1361a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor // Prohibit the use of VLAs during template argument deduction. 1362a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor else if (isSFINAEContext()) { 1363a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor Diag(Loc, diag::err_vla_in_sfinae); 1364a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor return QualType(); 1365a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor } 13660fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Just extwarn about VLAs. 13670fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor else 13680fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::ext_vla); 13690fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } else if (ASM != ArrayType::Normal || Quals != 0) 1370d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith Diag(Loc, 1371043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor getLangOptions().CPlusPlus? diag::err_c99_array_usage_cxx 1372d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith : diag::ext_c99_array_usage) << ASM; 1373cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1374cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1375cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 1376cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 13779cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 13789cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 13799cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 13809cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 13819ae2f076ca5ab1feb3ba95629099ec2319833701John McCallQualType Sema::BuildExtVectorType(QualType T, Expr *ArraySize, 13829cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 13839cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 13849cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 13851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 13869cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 13879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 13889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 13899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 13909cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 13919ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isTypeDependent() && !ArraySize->isValueDependent()) { 13929cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 13939ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isIntegerConstantExpr(vecSize, Context)) { 13949cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_argument_not_int) 13959ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << "ext_vector_type" << ArraySize->getSourceRange(); 13969cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 13979cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 13981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 14009cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 14011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 14021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14039cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 14049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 14059ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << ArraySize->getSourceRange(); 14069cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 14079cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 14081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14094ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return Context.getExtVectorType(T, vectorSize); 14101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 14111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14129ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Context.getDependentSizedExtVectorType(T, ArraySize, AttrLoc); 14139cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 14141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1415724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \brief Build a function type. 1416724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1417724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// This routine checks the function type according to C++ rules and 1418724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// under the assumption that the result type and parameter types have 1419724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// just been instantiated from a template. It therefore duplicates 14202943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor/// some of the behavior of GetTypeForDeclarator, but in a much 1421724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// simpler form that is only suitable for this narrow use case. 1422724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1423724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param T The return type of the function. 1424724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1425724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param ParamTypes The parameter types of the function. This array 1426724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// will be modified to account for adjustments to the types of the 1427724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function parameters. 1428724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1429724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param NumParamTypes The number of parameter types in ParamTypes. 1430724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1431724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Variadic Whether this is a variadic function type. 1432724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1433724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the function type. 1434724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1435724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Loc The location of the entity whose type involves this 1436724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function type or, if there is no such entity, the location of the 1437724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type that will have function type. 1438724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1439724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Entity The name of the entity that involves the function 1440724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type, if known. 1441724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1442724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \returns A suitable function type, if there are no 1443724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// errors. Otherwise, returns a NULL type. 1444724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas GregorQualType Sema::BuildFunctionType(QualType T, 14451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType *ParamTypes, 1446724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor unsigned NumParamTypes, 1447724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Variadic, unsigned Quals, 1448c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RefQualifierKind RefQualifier, 1449fa869547eb1cab12d7e0c0dfa8ba594e336b9b32Eli Friedman SourceLocation Loc, DeclarationName Entity, 1450e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionType::ExtInfo Info) { 1451724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 145258408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(Loc, diag::err_func_returning_array_function) 145358408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1454724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1455724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1456aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1457aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Functions cannot return half FP. 1458aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 1459aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 1 << 1460aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1461aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov return QualType(); 1462aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 1463aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1464724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 1465724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor for (unsigned Idx = 0; Idx < NumParamTypes; ++Idx) { 1466aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: Loc is too inprecise here, should use proper locations for args. 146779e6bd379773447a74cc3e579d9081e4c5cb6d63Douglas Gregor QualType ParamType = Context.getAdjustedParameterType(ParamTypes[Idx]); 14682dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 1469724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 1470724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 1471aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ParamType->isHalfType()) { 1472aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 1473aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 0 << 1474aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1475aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Invalid = true; 1476724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1477cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 147854e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 1479724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1480724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1481724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 1482724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1483724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1484e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 1485e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = Variadic; 1486e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = Quals; 1487c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = RefQualifier; 1488e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.ExtInfo = Info; 1489e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 1490e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall return Context.getFunctionType(T, ParamTypes, NumParamTypes, EPI); 1491724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 14921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1493949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 1494949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1495949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 1496949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 14970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR Qualifiers applied to the member pointer type 1498949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 1499949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 1500949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1501949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 1502949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 15031eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 15042865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 1505949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 1506949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 1507949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 1508949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 1509949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 1510949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1511949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 1512949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 1513949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1514949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 1515949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 1516949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 1517949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1518949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1519737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // C++ 8.3.3p3: A pointer to member shall not point to ... a member 1520949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 1521949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 15228d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 1523ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 1524949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1525949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1526949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1527949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 1528949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 1529949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 1530949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1531949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1532949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1533949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 1534949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 1535949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1536949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1537949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1538d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // In the Microsoft ABI, the class is allowed to be an incomplete 1539d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // type. In such cases, the compiler makes a worst-case assumption. 1540d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // We make no such assumption right now, so emit an error if the 1541d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // class isn't a complete type. 1542bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (Context.getTargetInfo().getCXXABI() == CXXABI_Microsoft && 1543d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis RequireCompleteType(Loc, Class, diag::err_incomplete_type)) 1544d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis return QualType(); 1545d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis 15462865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getMemberPointerType(T, Class.getTypePtr()); 1547949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 15481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15499a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 15509a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15519a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 15529a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR The cvr-qualifiers to be applied to the block pointer type. 15549a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15559a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Loc The location of the entity whose type involves this 15569a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// block pointer type or, if there is no such entity, the location of the 15579a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type that will have block pointer type. 15589a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15599a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 15609a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 15619a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15629a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 15639a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 15642865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildBlockPointerType(QualType T, 15651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 15669a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 15670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 15689a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 15699a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 15709a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 15711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15722865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getBlockPointerType(T); 15739a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 15749a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 1575b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallQualType Sema::GetTypeFromParser(ParsedType Ty, TypeSourceInfo **TInfo) { 1576b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = Ty.get(); 15773f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 1578a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 15793f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 15803f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 15813f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1582a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 1583f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 1584e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 1585a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 1586e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 15871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1588a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 1589e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 1590e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 1591e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 1592a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 1593a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 1594a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis unsigned chunkIndex); 1595a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis 1596f85e193739c953358c865005855253af4f68a497John McCall/// Given that this is the declaration of a parameter under ARC, 1597f85e193739c953358c865005855253af4f68a497John McCall/// attempt to infer attributes and such for pointer-to-whatever 1598f85e193739c953358c865005855253af4f68a497John McCall/// types. 1599f85e193739c953358c865005855253af4f68a497John McCallstatic void inferARCWriteback(TypeProcessingState &state, 1600f85e193739c953358c865005855253af4f68a497John McCall QualType &declSpecType) { 1601f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 1602f85e193739c953358c865005855253af4f68a497John McCall Declarator &declarator = state.getDeclarator(); 1603f85e193739c953358c865005855253af4f68a497John McCall 1604f85e193739c953358c865005855253af4f68a497John McCall // TODO: should we care about decl qualifiers? 1605f85e193739c953358c865005855253af4f68a497John McCall 1606f85e193739c953358c865005855253af4f68a497John McCall // Check whether the declarator has the expected form. We walk 1607f85e193739c953358c865005855253af4f68a497John McCall // from the inside out in order to make the block logic work. 1608f85e193739c953358c865005855253af4f68a497John McCall unsigned outermostPointerIndex = 0; 1609f85e193739c953358c865005855253af4f68a497John McCall bool isBlockPointer = false; 1610f85e193739c953358c865005855253af4f68a497John McCall unsigned numPointers = 0; 1611f85e193739c953358c865005855253af4f68a497John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 1612f85e193739c953358c865005855253af4f68a497John McCall unsigned chunkIndex = i; 1613f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(chunkIndex); 1614f85e193739c953358c865005855253af4f68a497John McCall switch (chunk.Kind) { 1615f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Paren: 1616f85e193739c953358c865005855253af4f68a497John McCall // Ignore parens. 1617f85e193739c953358c865005855253af4f68a497John McCall break; 1618f85e193739c953358c865005855253af4f68a497John McCall 1619f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Reference: 1620f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Pointer: 1621f85e193739c953358c865005855253af4f68a497John McCall // Count the number of pointers. Treat references 1622f85e193739c953358c865005855253af4f68a497John McCall // interchangeably as pointers; if they're mis-ordered, normal 1623f85e193739c953358c865005855253af4f68a497John McCall // type building will discover that. 1624f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1625f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1626f85e193739c953358c865005855253af4f68a497John McCall break; 1627f85e193739c953358c865005855253af4f68a497John McCall 1628f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::BlockPointer: 1629f85e193739c953358c865005855253af4f68a497John McCall // If we have a pointer to block pointer, that's an acceptable 1630f85e193739c953358c865005855253af4f68a497John McCall // indirect reference; anything else is not an application of 1631f85e193739c953358c865005855253af4f68a497John McCall // the rules. 1632f85e193739c953358c865005855253af4f68a497John McCall if (numPointers != 1) return; 1633f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1634f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1635f85e193739c953358c865005855253af4f68a497John McCall isBlockPointer = true; 1636f85e193739c953358c865005855253af4f68a497John McCall 1637f85e193739c953358c865005855253af4f68a497John McCall // We don't care about pointer structure in return values here. 1638f85e193739c953358c865005855253af4f68a497John McCall goto done; 1639f85e193739c953358c865005855253af4f68a497John McCall 1640f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Array: // suppress if written (id[])? 1641f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Function: 1642f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::MemberPointer: 1643f85e193739c953358c865005855253af4f68a497John McCall return; 1644f85e193739c953358c865005855253af4f68a497John McCall } 1645f85e193739c953358c865005855253af4f68a497John McCall } 1646f85e193739c953358c865005855253af4f68a497John McCall done: 1647f85e193739c953358c865005855253af4f68a497John McCall 1648f85e193739c953358c865005855253af4f68a497John McCall // If we have *one* pointer, then we want to throw the qualifier on 1649f85e193739c953358c865005855253af4f68a497John McCall // the declaration-specifiers, which means that it needs to be a 1650f85e193739c953358c865005855253af4f68a497John McCall // retainable object type. 1651f85e193739c953358c865005855253af4f68a497John McCall if (numPointers == 1) { 1652f85e193739c953358c865005855253af4f68a497John McCall // If it's not a retainable object type, the rule doesn't apply. 1653f85e193739c953358c865005855253af4f68a497John McCall if (!declSpecType->isObjCRetainableType()) return; 1654f85e193739c953358c865005855253af4f68a497John McCall 1655f85e193739c953358c865005855253af4f68a497John McCall // If it already has lifetime, don't do anything. 1656f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType.getObjCLifetime()) return; 1657f85e193739c953358c865005855253af4f68a497John McCall 1658f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, modify the type in-place. 1659f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 1660f85e193739c953358c865005855253af4f68a497John McCall 1661f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType->isObjCARCImplicitlyUnretainedType()) 1662f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_ExplicitNone); 1663f85e193739c953358c865005855253af4f68a497John McCall else 1664f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_Autoreleasing); 1665f85e193739c953358c865005855253af4f68a497John McCall declSpecType = S.Context.getQualifiedType(declSpecType, qs); 1666f85e193739c953358c865005855253af4f68a497John McCall 1667f85e193739c953358c865005855253af4f68a497John McCall // If we have *two* pointers, then we want to throw the qualifier on 1668f85e193739c953358c865005855253af4f68a497John McCall // the outermost pointer. 1669f85e193739c953358c865005855253af4f68a497John McCall } else if (numPointers == 2) { 1670f85e193739c953358c865005855253af4f68a497John McCall // If we don't have a block pointer, we need to check whether the 1671f85e193739c953358c865005855253af4f68a497John McCall // declaration-specifiers gave us something that will turn into a 1672f85e193739c953358c865005855253af4f68a497John McCall // retainable object pointer after we slap the first pointer on it. 1673f85e193739c953358c865005855253af4f68a497John McCall if (!isBlockPointer && !declSpecType->isObjCObjectType()) 1674f85e193739c953358c865005855253af4f68a497John McCall return; 1675f85e193739c953358c865005855253af4f68a497John McCall 1676f85e193739c953358c865005855253af4f68a497John McCall // Look for an explicit lifetime attribute there. 1677f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(outermostPointerIndex); 16781c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis if (chunk.Kind != DeclaratorChunk::Pointer && 16791c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis chunk.Kind != DeclaratorChunk::BlockPointer) 16801c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis return; 1681f85e193739c953358c865005855253af4f68a497John McCall for (const AttributeList *attr = chunk.getAttrs(); attr; 1682f85e193739c953358c865005855253af4f68a497John McCall attr = attr->getNext()) 1683b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis if (attr->getKind() == AttributeList::AT_objc_ownership) 1684f85e193739c953358c865005855253af4f68a497John McCall return; 1685f85e193739c953358c865005855253af4f68a497John McCall 1686a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, Qualifiers::OCL_Autoreleasing, 1687a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis outermostPointerIndex); 1688f85e193739c953358c865005855253af4f68a497John McCall 1689f85e193739c953358c865005855253af4f68a497John McCall // Any other number of pointers/references does not trigger the rule. 1690f85e193739c953358c865005855253af4f68a497John McCall } else return; 1691f85e193739c953358c865005855253af4f68a497John McCall 1692f85e193739c953358c865005855253af4f68a497John McCall // TODO: mark whether we did this inference? 1693f85e193739c953358c865005855253af4f68a497John McCall} 1694f85e193739c953358c865005855253af4f68a497John McCall 1695d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruthstatic void DiagnoseIgnoredQualifiers(unsigned Quals, 1696d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation ConstQualLoc, 1697d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation VolatileQualLoc, 1698d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation RestrictQualLoc, 1699d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth Sema& S) { 1700d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth std::string QualStr; 1701d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth unsigned NumQuals = 0; 1702d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation Loc; 1703d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1704d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint ConstFixIt; 1705d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint VolatileFixIt; 1706d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint RestrictFixIt; 1707d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1708a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg const SourceManager &SM = S.getSourceManager(); 1709a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg 1710d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // FIXME: The locations here are set kind of arbitrarily. It'd be nicer to 1711d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // find a range and grow it to encompass all the qualifiers, regardless of 1712d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // the order in which they textually appear. 1713d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Const) { 1714d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ConstFixIt = FixItHint::CreateRemoval(ConstQualLoc); 1715d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth QualStr = "const"; 1716a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg ++NumQuals; 1717a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(ConstQualLoc, Loc)) 1718a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = ConstQualLoc; 1719d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1720d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Volatile) { 1721d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth VolatileFixIt = FixItHint::CreateRemoval(VolatileQualLoc); 1722a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg QualStr += (NumQuals == 0 ? "volatile" : " volatile"); 1723d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ++NumQuals; 1724a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(VolatileQualLoc, Loc)) 1725a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = VolatileQualLoc; 1726d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1727d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Restrict) { 1728d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth RestrictFixIt = FixItHint::CreateRemoval(RestrictQualLoc); 1729a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg QualStr += (NumQuals == 0 ? "restrict" : " restrict"); 1730d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ++NumQuals; 1731a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(RestrictQualLoc, Loc)) 1732a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = RestrictQualLoc; 1733d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1734d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1735d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(NumQuals > 0 && "No known qualifiers?"); 1736d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1737d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth S.Diag(Loc, diag::warn_qual_return_type) 1738a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg << QualStr << NumQuals << ConstFixIt << VolatileFixIt << RestrictFixIt; 1739d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth} 1740d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 17418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType GetDeclSpecTypeForDeclarator(TypeProcessingState &state, 17428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *&ReturnTypeInfo) { 17438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &SemaRef = state.getSema(); 17448cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 1745930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 17468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ReturnTypeInfo = 0; 1747711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 17488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The TagDecl owned by the DeclSpec. 17498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TagDecl *OwnedTagDecl = 0; 17508999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl 17513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 175298a5403ecf1d2b60ae8cbf43e54194bd762cacaaFariborz Jahanian case UnqualifiedId::IK_ImplicitSelfParam: 17533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 17548999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl case UnqualifiedId::IK_Identifier: 17550486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 17563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 17578cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = ConvertDeclSpecToType(state); 17585db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 1759591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 1760d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 176115987970eeaa1842c29ec8797affd1c1dea05585Abramo Bagnara // Owned declaration is embedded in declarator. 1762d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl->setEmbeddedInDeclarator(true); 1763591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 1764930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 1765930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 17663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 17670efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 17683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 1769930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 177048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // "void" instead. 17718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.VoidTy; 1772930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 177348026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 177448026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 177548026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 177648026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 17778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.GetTypeFromParser(D.getName().ConversionFunctionId, 17788cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis &ReturnTypeInfo); 177948026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 1780930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 1781dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor 1782711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (D.getAttributes()) 1783711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeTypeAttrsFromDeclarator(state, T); 1784711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1785e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C++0x [dcl.spec.auto]p5: reject 'auto' if it is not in an allowed context. 17868110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // In C++0x, a function declarator using 'auto' must have a trailing return 17878110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // type (this is checked later) and we can skip this. In other languages 17888110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // using auto, we need to check regardless. 178934b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 17908cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis (!SemaRef.getLangOptions().CPlusPlus0x || !D.isFunctionDeclarator())) { 1791baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 17921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1793baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 1794baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 1795b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("K&R type lists aren't allowed in C++"); 1796f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 1797f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman llvm_unreachable("Can't specify a type specifier in lambda grammar"); 1798cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 1799cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 1800baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 1801baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 0; // Function prototype 1802baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1803baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 18047a614d8380297fcd2bc23986241905d97222948cRichard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static) 18057a614d8380297fcd2bc23986241905d97222948cRichard Smith break; 18068cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (cast<TagDecl>(SemaRef.CurContext)->getTagKind()) { 1807eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27David Blaikie case TTK_Enum: llvm_unreachable("unhandled tag kind"); 1808465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Struct: Error = 1; /* Struct member */ break; 1809465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Union: Error = 2; /* Union member */ break; 1810465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Class: Error = 3; /* Class member */ break; 18111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1812baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1813baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 181417b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 1815baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 4; // Exception declaration 1816baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1817baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 1818baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 5; // Template parameter 1819baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1820baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 182134b41d939a1328f484511c6002ba2456db879a29Richard Smith Error = 6; // Block literal 182234b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 182334b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TemplateTypeArgContext: 182434b41d939a1328f484511c6002ba2456db879a29Richard Smith Error = 7; // Template type argument 182534b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 1826162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 18273e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 1828162e1c1b487352434552147967c3dd296ebee2f7Richard Smith Error = 9; // Type alias 1829162e1c1b487352434552147967c3dd296ebee2f7Richard Smith break; 183034b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TypeNameContext: 18310b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis Error = 11; // Generic 1832baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1833baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 1834baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 1835baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 1836baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 18370b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 1838baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1839baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1840baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 1841ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 1842ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith Error = 8; 1843ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith 18448110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // In Objective-C it is an error to use 'auto' on a function declarator. 18458110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith if (D.isFunctionDeclarator()) 1846162e1c1b487352434552147967c3dd296ebee2f7Richard Smith Error = 10; 18478110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith 1848e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C++0x [dcl.spec.auto]p2: 'auto' is always fine if the declarator 1849e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // contains a trailing return type. That is only legal at the outermost 1850e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // level. Check all declarator chunks (outermost first) anyway, to give 1851e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // better diagnostics. 18528cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (SemaRef.getLangOptions().CPlusPlus0x && Error != -1) { 1853e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 1854e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned chunkIndex = e - i - 1; 1855e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith state.setCurrentChunkIndex(chunkIndex); 1856e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 1857e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (DeclType.Kind == DeclaratorChunk::Function) { 1858e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 1859e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (FTI.TrailingReturnType) { 1860e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith Error = -1; 1861e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith break; 1862e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1863e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1864e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1865e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1866e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 1867baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 18688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 18698cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_auto_not_allowed) 1870baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson << Error; 18718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.IntTy; 1872baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 18730aa86c0463a881be85fd34e04c7de3379997621dRichard Smith } else 18740aa86c0463a881be85fd34e04c7de3379997621dRichard Smith SemaRef.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 18750aa86c0463a881be85fd34e04c7de3379997621dRichard Smith diag::warn_cxx98_compat_auto_type_specifier); 1876baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 18778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 18788cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (SemaRef.getLangOptions().CPlusPlus && 18795e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall OwnedTagDecl && OwnedTagDecl->isCompleteDefinition()) { 18808cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Check the contexts where C++ forbids the declaration of a new class 18818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // or enumeration in a type-specifier-seq. 18828cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (D.getContext()) { 18838cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::FileContext: 18848cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::MemberContext: 18858cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockContext: 18868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ForContext: 18878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockLiteralContext: 1888f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 18898cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++0x [dcl.type]p3: 18908cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // A type-specifier-seq shall not define a class or enumeration unless 18918cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // it appears in the type-id of an alias-declaration (7.1.3) that is not 18928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // the declaration of a template-declaration. 18938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasDeclContext: 18948cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 18958cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasTemplateContext: 18968cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 18978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_alias_template) 18988cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 18998cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19008cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TypeNameContext: 19018cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateParamContext: 19028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXNewContext: 19038cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXCatchContext: 19048cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ObjCCatchContext: 19058cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateTypeArgContext: 19068cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 19078cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_type_specifier) 19088cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 19098cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19108cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::PrototypeContext: 1911cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 1912cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 19138cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::KNRTypeListContext: 19148cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ [dcl.fct]p6: 19158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Types shall not be defined in return or parameter types. 19168cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 19178cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_param_type) 19188cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 19198cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19208cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ConditionContext: 19218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ 6.4p2: 19228cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The type-specifier-seq shall not contain typedef and shall not declare 19238cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // a new class or enumeration. 19248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 19258cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_condition); 19268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 19288cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 19298cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 19308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return T; 19318cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 19328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 19338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic TypeSourceInfo *GetFullTypeForDeclarator(TypeProcessingState &state, 19348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType declSpecType, 19358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *TInfo) { 19368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 19378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = declSpecType; 19388cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 19398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 19408cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ASTContext &Context = S.Context; 19418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis const LangOptions &LangOpts = S.getLangOptions(); 19428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 19438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis bool ImplicitlyNoexcept = false; 19448cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (D.getName().getKind() == UnqualifiedId::IK_OperatorFunctionId && 19458cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis LangOpts.CPlusPlus0x) { 19468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis OverloadedOperatorKind OO = D.getName().OperatorFunctionId.Operator; 19478cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis /// In C++0x, deallocation functions (normal and array operator delete) 19488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis /// are implicitly noexcept. 19498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (OO == OO_Delete || OO == OO_Array_Delete) 19508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ImplicitlyNoexcept = true; 19518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 195234b41d939a1328f484511c6002ba2456db879a29Richard Smith 1953cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 1954cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 1955cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 1956cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 19571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1958162e1c1b487352434552147967c3dd296ebee2f7Richard Smith // Does this declaration declare a typedef-name? 1959162e1c1b487352434552147967c3dd296ebee2f7Richard Smith bool IsTypedefName = 1960162e1c1b487352434552147967c3dd296ebee2f7Richard Smith D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef || 19613e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasDeclContext || 19623e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext; 1963162e1c1b487352434552147967c3dd296ebee2f7Richard Smith 196498eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 196598eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 196698eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 19678ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 1968711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex = e - i - 1; 1969711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(chunkIndex); 1970711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 19715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 1972075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara case DeclaratorChunk::Paren: 19738cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildParenType(T); 1974075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara break; 19755618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 19769af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 19779af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 19788cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_blocks_disable); 19791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19808cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildBlockPointerType(T, D.getIdentifierLoc(), Name); 19812865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Cls.TypeQuals) 19828cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); 19835618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 19845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 19856a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 19866a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 19878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 19888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 19896a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 19906a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 19916a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 19928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjC1 && T->getAs<ObjCObjectType>()) { 1993c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = Context.getObjCObjectPointerType(T); 19942865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 19958cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 199614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 199714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 19988cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildPointerType(T, DeclType.Loc, Name); 19992865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 20008cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 2001711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 20025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 20030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 20046a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 20056a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 20068cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 20078cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 20086a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 20096a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 20106a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 20118cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); 20122865474261a608c7873b87ba4af110d17907896dJohn McCall 20132865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Quals; 20142865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ref.HasRestrict) 20158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); 20165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 20170953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 20185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 20196a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 20206a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 20218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 20228cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 20236a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 20246a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 20256a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 2026fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 202794f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 20285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 20295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 20305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 20315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 20325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 20335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 20345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 2035c05a94b7accd4035bf5d5897c434c445b22da855John McCall if (ASM == ArrayType::Star && !D.isPrototypeContext()) { 2036f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 2037f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 2038f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 20398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 2040f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 2041f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 2042f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 20438ac2c66a1442985091c5ec2b33ce6d3df3bcb529Eli Friedman T = S.BuildArrayType(T, ASM, ArraySize, ATI.TypeQuals, 20448cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 20455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 20465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2047f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 20485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 20495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 20505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 20515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 20523cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 205334b41d939a1328f484511c6002ba2456db879a29Richard Smith // Check for auto functions and trailing return type and adjust the 205434b41d939a1328f484511c6002ba2456db879a29Richard Smith // return type accordingly. 205534b41d939a1328f484511c6002ba2456db879a29Richard Smith if (!D.isInvalidType()) { 205634b41d939a1328f484511c6002ba2456db879a29Richard Smith // trailing-return-type is only required if we're declaring a function, 205734b41d939a1328f484511c6002ba2456db879a29Richard Smith // and not, for instance, a pointer to a function. 205834b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 205934b41d939a1328f484511c6002ba2456db879a29Richard Smith !FTI.TrailingReturnType && chunkIndex == 0) { 20608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 206134b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_auto_missing_trailing_return); 206234b41d939a1328f484511c6002ba2456db879a29Richard Smith T = Context.IntTy; 206334b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 206434b41d939a1328f484511c6002ba2456db879a29Richard Smith } else if (FTI.TrailingReturnType) { 2065e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // T must be exactly 'auto' at this point. See CWG issue 681. 2066e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (isa<ParenType>(T)) { 20678cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 2068e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diag::err_trailing_return_in_parens) 2069e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith << T << D.getDeclSpec().getSourceRange(); 2070e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2071f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman } else if (D.getContext() != Declarator::LambdaExprContext && 2072f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman (T.hasQualifiers() || !isa<AutoType>(T))) { 20738cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 207434b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_trailing_return_without_auto) 207534b41d939a1328f484511c6002ba2456db879a29Richard Smith << T << D.getDeclSpec().getSourceRange(); 207634b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 207734b41d939a1328f484511c6002ba2456db879a29Richard Smith } 207834b41d939a1328f484511c6002ba2456db879a29Richard Smith 20798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.GetTypeFromParser( 208034b41d939a1328f484511c6002ba2456db879a29Richard Smith ParsedType::getFromOpaquePtr(FTI.TrailingReturnType), 20818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis &TInfo); 208234b41d939a1328f484511c6002ba2456db879a29Richard Smith } 208334b41d939a1328f484511c6002ba2456db879a29Richard Smith } 208434b41d939a1328f484511c6002ba2456db879a29Richard Smith 2085e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C99 6.7.5.3p1: The return type may not be a function or array type. 2086e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // For conversion functions, we'll diagnose this particular error later. 2087e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if ((T->isArrayType() || T->isFunctionType()) && 2088e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 2089e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned diagID = diag::err_func_returning_array_function; 2090e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // Last processing chunk in block context means this function chunk 2091e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // represents the block. 2092e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (chunkIndex == 0 && 2093e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.getContext() == Declarator::BlockLiteralContext) 2094e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diagID = diag::err_block_returning_array_function; 20958cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diagID) << T->isFunctionType() << T; 2096e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith T = Context.IntTy; 2097e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2098e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2099e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 2100aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Do not allow returning half FP value. 2101aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 2102aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 2103aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov S.Diag(D.getIdentifierLoc(), 2104aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov diag::err_parameters_retval_cannot_have_fp16_type) << 1 2105aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov << FixItHint::CreateInsertion(D.getIdentifierLoc(), "*"); 2106aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov D.setInvalidType(true); 2107aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 2108aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 21095291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // cv-qualifiers on return types are pointless except when the type is a 21105291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // class type in C++. 2111fff951371dfc309160a99d423e43a7841aeb35aaDouglas Gregor if (isa<PointerType>(T) && T.getLocalCVRQualifiers() && 21121e15394853bfae25112d9cc6b445504905e1f34aRafael Espindola (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId) && 21138cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis (!LangOpts.CPlusPlus || !T->isDependentType())) { 2114d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(chunkIndex + 1 < e && "No DeclaratorChunk for the return type?"); 2115d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DeclaratorChunk ReturnTypeChunk = D.getTypeObject(chunkIndex + 1); 2116d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(ReturnTypeChunk.Kind == DeclaratorChunk::Pointer); 2117d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2118d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DeclaratorChunk::PointerTypeInfo &PTI = ReturnTypeChunk.Ptr; 2119d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2120d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DiagnoseIgnoredQualifiers(PTI.TypeQuals, 2121d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.ConstQualLoc), 2122d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.VolatileQualLoc), 2123d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.RestrictQualLoc), 21248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S); 2125d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2126d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } else if (T.getCVRQualifiers() && D.getDeclSpec().getTypeQualifiers() && 21278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis (!LangOpts.CPlusPlus || 21285291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor (!T->isDependentType() && !T->isRecordType()))) { 2129d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2130d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DiagnoseIgnoredQualifiers(D.getDeclSpec().getTypeQualifiers(), 2131d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getConstSpecLoc(), 2132d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getVolatileSpecLoc(), 2133d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getRestrictSpecLoc(), 21348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S); 21355291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor } 2136d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 21378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 2138402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 2139402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 2140b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl *Tag = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 21415e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall if (Tag->isCompleteDefinition()) 21428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 2143402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 2144402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 2145402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 21463cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 21473cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 2148162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (IsTypedefName && FTI.getExceptionSpecType()) 21498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getExceptionSpecLoc(), diag::err_exception_spec_in_typedef) 21503e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith << (D.getContext() == Declarator::AliasDeclContext || 21513e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext); 21523cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 21538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && !FTI.isVariadic && !LangOpts.CPlusPlus) { 21542865474261a608c7873b87ba4af110d17907896dJohn McCall // Simple void foo(), where the incoming T is the result type. 21552865474261a608c7873b87ba4af110d17907896dJohn McCall T = Context.getFunctionNoProtoType(T); 21562865474261a608c7873b87ba4af110d17907896dJohn McCall } else { 21572865474261a608c7873b87ba4af110d17907896dJohn McCall // We allow a zero-parameter variadic function in C if the 21582865474261a608c7873b87ba4af110d17907896dJohn McCall // function is marked with the "overloadable" attribute. Scan 21592865474261a608c7873b87ba4af110d17907896dJohn McCall // for this attribute now. 21608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && FTI.isVariadic && !LangOpts.CPlusPlus) { 2161965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 2162965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 2163965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 2164965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (Attrs->getKind() == AttributeList::AT_overloadable) { 2165965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 2166965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 2167965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2168965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2169965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 2170965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 21718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 2172c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 21732865474261a608c7873b87ba4af110d17907896dJohn McCall 21742865474261a608c7873b87ba4af110d17907896dJohn McCall if (FTI.NumArgs && FTI.ArgInfo[0].Param == 0) { 2175788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function 2176788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // definition. 21778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 21782865474261a608c7873b87ba4af110d17907896dJohn McCall D.setInvalidType(true); 21792865474261a608c7873b87ba4af110d17907896dJohn McCall break; 21802865474261a608c7873b87ba4af110d17907896dJohn McCall } 21812865474261a608c7873b87ba4af110d17907896dJohn McCall 2182e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 2183e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = FTI.isVariadic; 2184e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = FTI.TypeQuals; 2185c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = !FTI.hasRefQualifier()? RQ_None 2186c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : FTI.RefQualifierIsLValueRef? RQ_LValue 2187c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : RQ_RValue; 2188c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 21895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 21905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 21915f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 21922865474261a608c7873b87ba4af110d17907896dJohn McCall ArgTys.reserve(FTI.NumArgs); 21931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21945f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<bool, 16> ConsumedArguments; 2195f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.reserve(FTI.NumArgs); 2196f85e193739c953358c865005855253af4f68a497John McCall bool HasAnyConsumedArguments = false; 2197f85e193739c953358c865005855253af4f68a497John McCall 21985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 2199d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 22008123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner QualType ArgTy = Param->getType(); 220178c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 22022dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 22032dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Adjust the parameter type. 220479e6bd379773447a74cc3e579d9081e4c5cb6d63Douglas Gregor assert((ArgTy == Context.getAdjustedParameterType(ArgTy)) && 220579e6bd379773447a74cc3e579d9081e4c5cb6d63Douglas Gregor "Unadjusted type?"); 22062dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 22075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 22085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 220972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 22102dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 22115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 22125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 22135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 22145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 22158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_only_param); 22162ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 22178123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 22182ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 22192ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 22208cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[i].IdentLoc, 22214565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 22222ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 22238123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 22242ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 22252ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 22260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 22278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_param_qualified); 22281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22292ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 22302ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 22312ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 2232aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ArgTy->isHalfType()) { 2233aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 2234aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 2235aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov S.Diag(Param->getLocation(), 2236aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov diag::err_parameters_retval_cannot_have_fp16_type) << 0 2237aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov << FixItHint::CreateInsertion(Param->getLocation(), "*"); 2238aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov D.setInvalidType(); 2239eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 2240eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 2241a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 2242eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2243183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 2244eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall if (BTy->getKind() == BuiltinType::Float) { 2245eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 2246eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2247eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall } 2248eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 22495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 225056a965c0f77c9e6bffd65cc8f8796442a8527381Fariborz Jahanian 22518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjCAutoRefCount) { 2252f85e193739c953358c865005855253af4f68a497John McCall bool Consumed = Param->hasAttr<NSConsumedAttr>(); 2253f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.push_back(Consumed); 2254f85e193739c953358c865005855253af4f68a497John McCall HasAnyConsumedArguments |= Consumed; 2255f85e193739c953358c865005855253af4f68a497John McCall } 2256f85e193739c953358c865005855253af4f68a497John McCall 225754e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 22585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2259465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2260f85e193739c953358c865005855253af4f68a497John McCall if (HasAnyConsumedArguments) 2261f85e193739c953358c865005855253af4f68a497John McCall EPI.ConsumedArguments = ConsumedArguments.data(); 2262f85e193739c953358c865005855253af4f68a497John McCall 22635f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 4> Exceptions; 22648b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl EPI.ExceptionSpecType = FTI.getExceptionSpecType(); 22658b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl if (FTI.getExceptionSpecType() == EST_Dynamic) { 2266e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall Exceptions.reserve(FTI.NumExceptions); 2267e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall for (unsigned ei = 0, ee = FTI.NumExceptions; ei != ee; ++ei) { 2268e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // FIXME: Preserve type source info. 22698cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType ET = S.GetTypeFromParser(FTI.Exceptions[ei].Ty); 2270e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // Check that the type is valid for an exception spec, and 2271e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // drop it if not. 22728cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!S.CheckSpecifiedExceptionType(ET, FTI.Exceptions[ei].Range)) 2273e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall Exceptions.push_back(ET); 2274e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 2275373920bd733b1d28fe7bf209945a62eb9248d948John McCall EPI.NumExceptions = Exceptions.size(); 2276e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Exceptions = Exceptions.data(); 22778b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl } else if (FTI.getExceptionSpecType() == EST_ComputedNoexcept) { 227860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl // If an error occurred, there's no expression here. 227960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (Expr *NoexceptExpr = FTI.NoexceptExpr) { 228060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl assert((NoexceptExpr->isTypeDependent() || 228160618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NoexceptExpr->getType()->getCanonicalTypeUnqualified() == 228260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl Context.BoolTy) && 228360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl "Parser should have made sure that the expression is boolean"); 228460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl SourceLocation ErrLoc; 228560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl llvm::APSInt Dummy; 228660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (!NoexceptExpr->isValueDependent() && 228760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl !NoexceptExpr->isIntegerConstantExpr(Dummy, Context, &ErrLoc, 228860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /*evaluated*/false)) 22898cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(ErrLoc, diag::err_noexcept_needs_constant_expression) 229060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl << NoexceptExpr->getSourceRange(); 229160618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl else 229260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.NoexceptExpr = NoexceptExpr; 229360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 22948999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl } else if (FTI.getExceptionSpecType() == EST_None && 22958999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl ImplicitlyNoexcept && chunkIndex == 0) { 22968999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl // Only the outermost chunk is marked noexcept, of course. 22978999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl EPI.ExceptionSpecType = EST_BasicNoexcept; 2298ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 2299465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2300e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall T = Context.getFunctionType(T, ArgTys.data(), ArgTys.size(), EPI); 23015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 230204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 23035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 23045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2305f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 2306f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 23077bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara CXXScopeSpec &SS = DeclType.Mem.Scope(); 2308f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 23097bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (SS.isInvalid()) { 2310edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 2311edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 23128cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } else if (S.isDependentScopeSpecifier(SS) || 23138cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis dyn_cast_or_null<CXXRecordDecl>(S.computeDeclContext(SS))) { 23141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 23157bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara = static_cast<NestedNameSpecifier*>(SS.getScopeRep()); 231687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 231787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 231887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 23197bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 23204a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 232187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 232287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 232387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 232414aba76042e041b2c5e439bf4ae353a0a3c7fd73Douglas Gregor case NestedNameSpecifier::NamespaceAlias: 232587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 23269f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 23277bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara 232887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 232987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 233087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 233191ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Note: if the NNS has a prefix and ClsType is a nondependent 233291ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // TemplateSpecializationType, then the NNS prefix is NOT included 233391ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // in ClsType; hence we wrap ClsType into an ElaboratedType. 233491ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // NOTE: in particular, no wrap occurs if ClsType already is an 233591ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Elaborated, DependentName, or DependentTemplateSpecialization. 233691ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara if (NNSPrefix && isa<TemplateSpecializationType>(NNS->getAsType())) 23377bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getElaboratedType(ETK_None, NNSPrefix, ClsType); 233887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 233987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 2340f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 23418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Mem.Scope().getBeginLoc(), 2342949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 2343949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 2344949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 2345f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 2346f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2347f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2348949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 23498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildMemberPointerType(T, ClsType, DeclType.Loc, D.getIdentifier()); 2350949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 2351f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 2352949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 23532865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (DeclType.Mem.TypeQuals) { 23548cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); 2355f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2356f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 2357f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2358f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2359cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 2360cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 2361cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 2362cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 2363cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 2364c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 2365711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = const_cast<AttributeList*>(DeclType.getAttrs())) 2366711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 23675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2368971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 23698cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && T->isFunctionType()) { 2370183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 2371778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 2372971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 2373708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // C++ 8.3.5p4: 2374708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // A cv-qualifier-seq shall only be part of the function type 2375708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // for a nonstatic member function, the function type to which a pointer 2376708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // to member refers, or the top-level function type of a function typedef 2377708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // declaration. 2378683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // 2379683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Core issue 547 also allows cv-qualifiers on function types that are 2380683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // top-level template type arguments. 2381613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall bool FreeFunction; 2382613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall if (!D.getCXXScopeSpec().isSet()) { 2383906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman FreeFunction = ((D.getContext() != Declarator::MemberContext && 2384906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman D.getContext() != Declarator::LambdaExprContext) || 2385613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall D.getDeclSpec().isFriendSpecified()); 2386613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } else { 23878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis DeclContext *DC = S.computeDeclContext(D.getCXXScopeSpec()); 2388613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (DC && !DC->isRecord()); 2389613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } 2390613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall 239155dec868977ccb89cab0286122f9345f63bb5de7Richard Smith // C++0x [dcl.constexpr]p8: A constexpr specifier for a non-static member 239255dec868977ccb89cab0286122f9345f63bb5de7Richard Smith // function that is not a constructor declares that function to be const. 239355dec868977ccb89cab0286122f9345f63bb5de7Richard Smith if (D.getDeclSpec().isConstexprSpecified() && !FreeFunction && 23941bf9a9e6a5bdc0de7939908855dcddf46b661800Richard Smith D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_static && 239555dec868977ccb89cab0286122f9345f63bb5de7Richard Smith D.getName().getKind() != UnqualifiedId::IK_ConstructorName && 239655dec868977ccb89cab0286122f9345f63bb5de7Richard Smith D.getName().getKind() != UnqualifiedId::IK_ConstructorTemplateId && 239755dec868977ccb89cab0286122f9345f63bb5de7Richard Smith !(FnTy->getTypeQuals() & DeclSpec::TQ_const)) { 239855dec868977ccb89cab0286122f9345f63bb5de7Richard Smith // Rebuild function type adding a 'const' qualifier. 239955dec868977ccb89cab0286122f9345f63bb5de7Richard Smith FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 240055dec868977ccb89cab0286122f9345f63bb5de7Richard Smith EPI.TypeQuals |= DeclSpec::TQ_const; 240155dec868977ccb89cab0286122f9345f63bb5de7Richard Smith T = Context.getFunctionType(FnTy->getResultType(), 240255dec868977ccb89cab0286122f9345f63bb5de7Richard Smith FnTy->arg_type_begin(), 240355dec868977ccb89cab0286122f9345f63bb5de7Richard Smith FnTy->getNumArgs(), EPI); 240455dec868977ccb89cab0286122f9345f63bb5de7Richard Smith } 240555dec868977ccb89cab0286122f9345f63bb5de7Richard Smith 2406c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // C++0x [dcl.fct]p6: 2407c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // A ref-qualifier shall only be part of the function type for a 2408c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // non-static member function, the function type to which a pointer to 2409c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // member refers, or the top-level function type of a function typedef 2410c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // declaration. 2411c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor if ((FnTy->getTypeQuals() != 0 || FnTy->getRefQualifier()) && 2412683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor !(D.getContext() == Declarator::TemplateTypeArgContext && 2413162e1c1b487352434552147967c3dd296ebee2f7Richard Smith !D.isFunctionDeclarator()) && !IsTypedefName && 2414c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl (FreeFunction || 2415971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static)) { 2416683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (D.getContext() == Declarator::TemplateTypeArgContext) { 2417683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Accept qualified function types as template type arguments as a GNU 2418683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // extension. This is also the subject of C++ core issue 547. 2419683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor std::string Quals; 2420683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (FnTy->getTypeQuals() != 0) 2421683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals = Qualifiers::fromCVRMask(FnTy->getTypeQuals()).getAsString(); 2422683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 2423683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor switch (FnTy->getRefQualifier()) { 2424683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case RQ_None: 2425683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 2426683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 2427683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case RQ_LValue: 2428683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (!Quals.empty()) 2429683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += ' '; 2430683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += '&'; 2431683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 2432c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2433683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case RQ_RValue: 2434683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (!Quals.empty()) 2435683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += ' '; 2436683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += "&&"; 2437683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 2438683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2439683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 24408cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), 2441683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor diag::ext_qualified_function_type_template_arg) 2442683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << Quals; 2443683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } else { 2444683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (FnTy->getTypeQuals() != 0) { 244543f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor if (D.isFunctionDeclarator()) { 244643f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor SourceRange Range = D.getIdentifierLoc(); 244743f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor for (unsigned I = 0, N = D.getNumTypeObjects(); I != N; ++I) { 244843f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor const DeclaratorChunk &Chunk = D.getTypeObject(N-I-1); 244943f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor if (Chunk.Kind == DeclaratorChunk::Function && 245043f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor Chunk.Fun.TypeQuals != 0) { 245143f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor switch (Chunk.Fun.TypeQuals) { 245243f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor case Qualifiers::Const: 245343f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor Range = Chunk.Fun.getConstQualifierLoc(); 245443f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor break; 245543f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor case Qualifiers::Volatile: 245643f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor Range = Chunk.Fun.getVolatileQualifierLoc(); 245743f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor break; 245843f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor case Qualifiers::Const | Qualifiers::Volatile: { 245943f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor SourceLocation CLoc = Chunk.Fun.getConstQualifierLoc(); 246043f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor SourceLocation VLoc = Chunk.Fun.getVolatileQualifierLoc(); 246143f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor if (S.getSourceManager() 246243f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor .isBeforeInTranslationUnit(CLoc, VLoc)) { 246343f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor Range = SourceRange(CLoc, VLoc); 246443f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor } else { 246543f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor Range = SourceRange(VLoc, CLoc); 246643f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor } 246743f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor } 246843f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor break; 246943f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor } 247043f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor break; 247143f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor } 247243f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor } 247343f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor S.Diag(Range.getBegin(), diag::err_invalid_qualified_function_type) 247443f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor << FixItHint::CreateRemoval(Range); 247543f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor } else 24768cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), 2477683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor diag::err_invalid_qualified_typedef_function_type_use) 2478683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << FreeFunction; 2479683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2480683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 2481683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (FnTy->getRefQualifier()) { 2482683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (D.isFunctionDeclarator()) { 2483683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor SourceLocation Loc = D.getIdentifierLoc(); 2484683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor for (unsigned I = 0, N = D.getNumTypeObjects(); I != N; ++I) { 2485683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor const DeclaratorChunk &Chunk = D.getTypeObject(N-I-1); 2486683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (Chunk.Kind == DeclaratorChunk::Function && 2487683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Chunk.Fun.hasRefQualifier()) { 2488683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Loc = Chunk.Fun.getRefQualifierLoc(); 2489683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 2490683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2491944aa60777e6ea1015c9423107f7925f6d91f4a0Douglas Gregor } 2492944aa60777e6ea1015c9423107f7925f6d91f4a0Douglas Gregor 24938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(Loc, diag::err_invalid_ref_qualifier_function_type) 2494683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << (FnTy->getRefQualifier() == RQ_LValue) 2495683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << FixItHint::CreateRemoval(Loc); 2496683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } else { 24978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), 2498683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor diag::err_invalid_ref_qualifier_typedef_function_type_use) 2499683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << FreeFunction 2500683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << (FnTy->getRefQualifier() == RQ_LValue); 2501683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2502c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor } 2503c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2504683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Strip the cv-qualifiers and ref-qualifiers from the type. 2505683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 2506683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor EPI.TypeQuals = 0; 2507683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor EPI.RefQualifier = RQ_None; 2508c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2509683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor T = Context.getFunctionType(FnTy->getResultType(), 2510683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor FnTy->arg_type_begin(), 2511683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor FnTy->getNumArgs(), EPI); 2512683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2513971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 2514971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 25151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2516711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any undistributed attributes from the declarator. 2517711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) 2518711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = D.getAttributes()) 2519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 2520711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2521711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnose any ignored type attributes. 2522711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) state.diagnoseIgnoredTypeAttrs(T); 2523711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2524148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // C++0x [dcl.constexpr]p9: 2525148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // A constexpr specifier used in an object declaration declares the object 2526148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // as const. 2527148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne if (D.getDeclSpec().isConstexprSpecified() && T->isObjectType()) { 2528737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl T.addConst(); 2529737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl } 2530737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl 2531a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // If there was an ellipsis in the declarator, the declaration declares a 2532a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack whose type may be a pack expansion type. 2533a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (D.hasEllipsis() && !T.isNull()) { 2534a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 2535a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // A declarator-id or abstract-declarator containing an ellipsis shall 2536a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // only be used in a parameter-declaration. Such a parameter-declaration 2537a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // is a parameter pack (14.5.3). [...] 2538a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor switch (D.getContext()) { 2539a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::PrototypeContext: 2540a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 2541a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // [...] When it is part of a parameter-declaration-clause, the 2542a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack is a function parameter pack (14.5.3). The type T 2543a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // of the declarator-id of the function parameter pack shall contain 2544a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // a template parameter pack; each template parameter pack in T is 2545a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // expanded by the function parameter pack. 2546a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 2547a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // We represent function parameter packs as function parameters whose 2548a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // type is a pack expansion. 2549a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (!T->containsUnexpandedParameterPack()) { 25508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getEllipsisLoc(), 2551a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor diag::err_function_parameter_pack_without_parameter_packs) 2552a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor << T << D.getSourceRange(); 2553a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 2554a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } else { 2555cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 2556a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2557a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2558a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 2559a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TemplateParamContext: 2560a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [temp.param]p15: 2561a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // If a template-parameter is a [...] is a parameter-declaration that 2562a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // declares a parameter pack (8.3.5), then the template-parameter is a 2563a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // template parameter pack (14.5.3). 2564a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 2565a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Note: core issue 778 clarifies that, if there are any unexpanded 2566a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter packs in the type of the non-type template parameter, then 2567a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // it expands those parameter packs. 2568a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (T->containsUnexpandedParameterPack()) 2569cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 2570e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith else 2571e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith S.Diag(D.getEllipsisLoc(), 2572e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith LangOpts.CPlusPlus0x 2573e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith ? diag::warn_cxx98_compat_variadic_templates 2574e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith : diag::ext_variadic_templates); 2575a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2576a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 2577a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::FileContext: 2578a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::KNRTypeListContext: 2579cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: // FIXME: special diagnostic here? 2580cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: // FIXME: special diagnostic here? 2581a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TypeNameContext: 25820b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 2583162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 25843e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 2585a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::MemberContext: 2586a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockContext: 2587a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ForContext: 2588a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ConditionContext: 2589a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::CXXCatchContext: 259017b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 2591a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockLiteralContext: 2592f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 2593683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case Declarator::TemplateTypeArgContext: 2594a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // FIXME: We may want to allow parameter packs in block-literal contexts 2595a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // in the future. 25968cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getEllipsisLoc(), diag::err_ellipsis_in_declarator_not_parameter); 2597a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 2598a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2599a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2600a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2601e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 2602bf1a028246d884a540aeafa38e89be59a269b072John McCall if (T.isNull()) 2603bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 2604bf1a028246d884a540aeafa38e89be59a269b072John McCall else if (D.isInvalidType()) 2605bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getTrivialTypeSourceInfo(T); 2606db7abf78dedc2ef6ccb42b3dac6ab330fe2ea469Argyrios Kyrtzidis 26078cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return S.GetTypeSourceInfoForDeclarator(D, T, TInfo); 26088cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 26098cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 26108cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// GetTypeForDeclarator - Convert the type for the specified 26118cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// declarator to Type instances. 26128cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// 26138cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// The result of this call will never be null, but the associated 26148cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// type may be a null type if there's an unrecoverable error. 26158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S) { 26168cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Determine the type of the declarator. Not all forms of declarator 26178cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // have a type. 26188cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 26198cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeProcessingState state(*this, D); 26208cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 26218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 26228cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 26238cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (T.isNull()) 26248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 26258cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 26268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (D.isPrototypeContext() && getLangOptions().ObjCAutoRefCount) 26278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis inferARCWriteback(state, T); 2628db7abf78dedc2ef6ccb42b3dac6ab330fe2ea469Argyrios Kyrtzidis 26298cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return GetFullTypeForDeclarator(state, T, ReturnTypeInfo); 26305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 26315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 263231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclSpec(Sema &S, 263331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 263431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 263531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType() && 263631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy.getObjCLifetime() == Qualifiers::OCL_None) { 263731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers qs; 263831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis qs.addObjCLifetime(ownership); 263931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy = S.Context.getQualifiedType(declSpecTy, qs); 264031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 264131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 264231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 264331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 264431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 264531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis unsigned chunkIndex) { 264631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 264731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 264831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 264931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Look for an explicit lifetime attribute. 265031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(chunkIndex); 265131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (const AttributeList *attr = chunk.getAttrs(); attr; 265231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis attr = attr->getNext()) 265331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (attr->getKind() == AttributeList::AT_objc_ownership) 265431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 265531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 265631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis const char *attrStr = 0; 265731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (ownership) { 26583026348bd4c13a0f83b59839f64065e0fcbea253David Blaikie case Qualifiers::OCL_None: llvm_unreachable("no ownership!"); 265931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: attrStr = "none"; break; 266031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Strong: attrStr = "strong"; break; 266131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Weak: attrStr = "weak"; break; 266231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: attrStr = "autoreleasing"; break; 266331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 266431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 266531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // If there wasn't one, add one (with an invalid source location 266631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // so that we don't make an AttributedType for it). 266731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis AttributeList *attr = D.getAttributePool() 266831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis .create(&S.Context.Idents.get("objc_ownership"), SourceLocation(), 266931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*scope*/ 0, SourceLocation(), 267031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis &S.Context.Idents.get(attrStr), SourceLocation(), 267131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*args*/ 0, 0, 267231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*declspec*/ false, /*C++0x*/ false); 267331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis spliceAttrIntoList(*attr, chunk.getAttrListRef()); 267431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 267531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // TODO: mark whether we did this inference? 267631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 267731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 26786ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis/// \brief Used for transfering ownership in casts resulting in l-values. 267931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnership(TypeProcessingState &state, 268031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 268131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 268231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 268331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 268431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 268531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis int inner = -1; 26866ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis bool hasIndirection = false; 268731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 268831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(i); 268931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (chunk.Kind) { 269031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Paren: 269131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Ignore parens. 269231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 269331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 269431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Array: 269531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Reference: 269631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Pointer: 26976ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 26986ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis hasIndirection = true; 269931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis inner = i; 270031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 270131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 270231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::BlockPointer: 27036ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 27046ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, ownership, i); 27056ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 270631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 270731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Function: 270831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::MemberPointer: 270931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 271031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 271131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 271231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 271331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (inner == -1) 27146ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 271531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 271631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(inner); 271731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (chunk.Kind == DeclaratorChunk::Pointer) { 271831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType()) 271931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 27206ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (declSpecTy->isObjCObjectType() && hasIndirection) 272131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclaratorChunk(state, ownership, inner); 272231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } else { 272331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis assert(chunk.Kind == DeclaratorChunk::Array || 272431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis chunk.Kind == DeclaratorChunk::Reference); 272531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 272631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 272731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 272831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 272931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclaratorCast(Declarator &D, QualType FromTy) { 273031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeProcessingState state(*this, D); 273131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 273231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 273331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType declSpecTy = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 273431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy.isNull()) 273531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 273631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 273731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (getLangOptions().ObjCAutoRefCount) { 273831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership = Context.getInnerObjCOwnership(FromTy); 273931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (ownership != Qualifiers::OCL_None) 274031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis transferARCOwnership(state, declSpecTy, ownership); 274131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 274231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 274331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return GetFullTypeForDeclarator(state, declSpecTy, ReturnTypeInfo); 274431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 274531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 274614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall/// Map an AttributedType::Kind to an AttributeList::Kind. 274714aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic AttributeList::Kind getAttrListKind(AttributedType::Kind kind) { 274814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall switch (kind) { 274914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_address_space: 275014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_address_space; 275114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_regparm: 275214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_regparm; 275314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_vector_size: 275414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_vector_size; 275514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_vector_type: 275614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_neon_vector_type; 275714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_polyvector_type: 275814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_neon_polyvector_type; 275914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_objc_gc: 276014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_objc_gc; 2761b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributedType::attr_objc_ownership: 2762b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis return AttributeList::AT_objc_ownership; 276314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_noreturn: 276414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_noreturn; 276514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_cdecl: 276614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_cdecl; 276714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_fastcall: 276814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_fastcall; 276914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_stdcall: 277014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_stdcall; 277114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_thiscall: 277214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_thiscall; 277314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_pascal: 277414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_pascal; 2775414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributedType::attr_pcs: 2776414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return AttributeList::AT_pcs; 277714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 277814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall llvm_unreachable("unexpected attribute kind!"); 277914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 278014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 278114aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic void fillAttributedTypeLoc(AttributedTypeLoc TL, 278214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall const AttributeList *attrs) { 278314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributedType::Kind kind = TL.getAttrKind(); 278414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 278514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no type attributes in the expected location!"); 278614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributeList::Kind parsedKind = getAttrListKind(kind); 278714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall while (attrs->getKind() != parsedKind) { 278814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall attrs = attrs->getNext(); 278914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no matching attribute in expected location!"); 279014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 279114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 279214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrNameLoc(attrs->getLoc()); 279314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrExprOperand()) 279414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrExprOperand(attrs->getArg(0)); 279514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall else if (TL.hasAttrEnumOperand()) 279614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrEnumOperandLoc(attrs->getParameterLoc()); 279714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 279814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // FIXME: preserve this information to here. 279914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrOperand()) 280014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrOperandParensRange(SourceRange()); 280114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 280214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 280351bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 280451bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 2805c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor ASTContext &Context; 280651bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 2807f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 280851bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 2809c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(ASTContext &Context, const DeclSpec &DS) 2810c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor : Context(Context), DS(DS) {} 2811f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 281214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 281314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, DS.getAttributes().getList()); 281414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall Visit(TL.getModifiedLoc()); 281514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 281651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 281751bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 281851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 281951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 282051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 282151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 282251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 282351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 2824c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 2825c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 2826c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Handle the base type, which might not have been written explicitly. 2827c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 2828c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(false); 2829c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.getBaseLoc().initialize(Context, SourceLocation()); 2830c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else { 2831c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(true); 2832c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getBaseLoc()); 2833c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 283454e14c4db764c0636160d26c5bbf491637c83a76John McCall 2835c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Protocol qualifiers. 283654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 283754e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 283854e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 283954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 284054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 284154e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 284254e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 284354e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 284454e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 284554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 284654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 284754e14c4db764c0636160d26c5bbf491637c83a76John McCall } 284851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 284954e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 285054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 2851c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getPointeeLoc()); 285251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 2853833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 2854a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 2855b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2856833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2857833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 2858833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 2859a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 28600daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.initialize(Context, DS.getTypeSpecTypeNameLoc()); 2861833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 2862833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 2863833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2864e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeLoc OldTL = TInfo->getTypeLoc(); 2865e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo->getType()->getAs<ElaboratedType>()) { 2866e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeLoc ElabTL = cast<ElaboratedTypeLoc>(OldTL); 2867e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TemplateSpecializationTypeLoc NamedTL = 2868e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara cast<TemplateSpecializationTypeLoc>(ElabTL.getNamedTypeLoc()); 2869e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(NamedTL); 2870e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2871e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara else 2872e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<TemplateSpecializationTypeLoc>(OldTL)); 2873833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 2874cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 2875cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 2876cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 2877cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 2878cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 2879cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 2880cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 2881cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 2882cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 2883b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall assert(DS.getRepAsType()); 2884cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 2885b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2886cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 2887cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 2888ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt void VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) { 2889ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt // FIXME: This holds only because we only have one unary transform. 2890ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getTypeSpecType() == DeclSpec::TST_underlyingType); 2891ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setKWLoc(DS.getTypeSpecTypeLoc()); 2892ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setParensRange(DS.getTypeofParensRange()); 2893ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getRepAsType()); 2894ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TypeSourceInfo *TInfo = 0; 2895ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2896ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setUnderlyingTInfo(TInfo); 2897ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 2898ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 2899ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 2900ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 2901ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 2902ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 2903ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 2904ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 2905ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 2906ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 2907ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 2908ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 2909ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 2910ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 2911ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 2912ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 2913e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 2914e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 2915e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 2916253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 2917e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 2918b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2919e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 2920e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<ElaboratedTypeLoc>(TInfo->getTypeLoc())); 2921e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 2922e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2923e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2924e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 2925e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 2926e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 2927e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 29289e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 2929e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); 2930e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2931e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 2932e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 2933e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 2934253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 2935e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 2936b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2937e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 2938e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<DependentNameTypeLoc>(TInfo->getTypeLoc())); 2939e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 2940e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2941e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2942e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 2943e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 2944e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 2945e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 29462494dd024b392b8def58bf067cc94b51c214cf77Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 29470daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); 294833500955d731c73717af52088b7fc0e7a85681e7John McCall } 294933500955d731c73717af52088b7fc0e7a85681e7John McCall void VisitDependentTemplateSpecializationTypeLoc( 295033500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypeLoc TL) { 295133500955d731c73717af52088b7fc0e7a85681e7John McCall ElaboratedTypeKeyword Keyword 295233500955d731c73717af52088b7fc0e7a85681e7John McCall = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 295333500955d731c73717af52088b7fc0e7a85681e7John McCall if (Keyword == ETK_Typename) { 295433500955d731c73717af52088b7fc0e7a85681e7John McCall TypeSourceInfo *TInfo = 0; 2955b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 295633500955d731c73717af52088b7fc0e7a85681e7John McCall if (TInfo) { 295733500955d731c73717af52088b7fc0e7a85681e7John McCall TL.copy(cast<DependentTemplateSpecializationTypeLoc>( 295833500955d731c73717af52088b7fc0e7a85681e7John McCall TInfo->getTypeLoc())); 295933500955d731c73717af52088b7fc0e7a85681e7John McCall return; 296033500955d731c73717af52088b7fc0e7a85681e7John McCall } 296133500955d731c73717af52088b7fc0e7a85681e7John McCall } 2962c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initializeLocal(Context, SourceLocation()); 296333500955d731c73717af52088b7fc0e7a85681e7John McCall TL.setKeywordLoc(Keyword != ETK_None 296433500955d731c73717af52088b7fc0e7a85681e7John McCall ? DS.getTypeSpecTypeLoc() 296533500955d731c73717af52088b7fc0e7a85681e7John McCall : SourceLocation()); 296633500955d731c73717af52088b7fc0e7a85681e7John McCall const CXXScopeSpec& SS = DS.getTypeSpecScope(); 296794fdffa4a572fc14ac296f5f1aae9db3734c72f1Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 29680daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); 29690daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara } 29700daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara void VisitTagTypeLoc(TagTypeLoc TL) { 29710daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); 2972e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2973b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman void VisitAtomicTypeLoc(AtomicTypeLoc TL) { 2974b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman TL.setKWLoc(DS.getTypeSpecTypeLoc()); 2975b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman TL.setParensRange(DS.getTypeofParensRange()); 297643fe245b37c3cd36d837aab9eb98551328d30141Douglas Gregor 297743fe245b37c3cd36d837aab9eb98551328d30141Douglas Gregor TypeSourceInfo *TInfo = 0; 297843fe245b37c3cd36d837aab9eb98551328d30141Douglas Gregor Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 297943fe245b37c3cd36d837aab9eb98551328d30141Douglas Gregor TL.getValueLoc().initializeFullCopy(TInfo->getTypeLoc()); 2980b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 2981e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 298251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 298351bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 2984c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initialize(Context, DS.getTypeSpecTypeLoc()); 298551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 298651bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 2987eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 298851bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 2989b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ASTContext &Context; 299051bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 2991f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 299251bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 2993b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(ASTContext &Context, const DeclaratorChunk &Chunk) 2994b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara : Context(Context), Chunk(Chunk) {} 29954adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 299651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 29979f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 299851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 29994adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3000f85e193739c953358c865005855253af4f68a497John McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 3001f85e193739c953358c865005855253af4f68a497John McCall fillAttributedTypeLoc(TL, Chunk.getAttrs()); 3002f85e193739c953358c865005855253af4f68a497John McCall } 300351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 300451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 300551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 30064adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 300751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 300851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 300951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 30104adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 301151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 301251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 301351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 30144adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 301551bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 301651bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 3017b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const CXXScopeSpec& SS = Chunk.Mem.Scope(); 3018b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NestedNameSpecifierLoc NNSLoc = SS.getWithLocInContext(Context); 3019b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3020b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const Type* ClsTy = TL.getClass(); 3021b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara QualType ClsQT = QualType(ClsTy, 0); 3022b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeSourceInfo *ClsTInfo = Context.CreateTypeSourceInfo(ClsQT, 0); 3023b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Now copy source location info into the type loc component. 3024b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc ClsTL = ClsTInfo->getTypeLoc(); 3025b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara switch (NNSLoc.getNestedNameSpecifier()->getKind()) { 3026b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Identifier: 3027b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara assert(isa<DependentNameType>(ClsTy) && "Unexpected TypeLoc"); 3028b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara { 3029fd9c42ed22fb4f7f865f7d8f8848df84ddf8262cAbramo Bagnara DependentNameTypeLoc DNTLoc = cast<DependentNameTypeLoc>(ClsTL); 3030b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setKeywordLoc(SourceLocation()); 3031b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setQualifierLoc(NNSLoc.getPrefix()); 3032b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setNameLoc(NNSLoc.getLocalBeginLoc()); 3033b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3034b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3035b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3036b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpec: 3037b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpecWithTemplate: 3038b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara if (isa<ElaboratedType>(ClsTy)) { 3039b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ElaboratedTypeLoc ETLoc = *cast<ElaboratedTypeLoc>(&ClsTL); 3040b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ETLoc.setKeywordLoc(SourceLocation()); 3041b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ETLoc.setQualifierLoc(NNSLoc.getPrefix()); 3042b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc NamedTL = ETLoc.getNamedTypeLoc(); 3043b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NamedTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3044b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } else { 3045b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ClsTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3046b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3047b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3048b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3049b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Namespace: 3050b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::NamespaceAlias: 3051b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Global: 3052b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara llvm_unreachable("Nested-name-specifier must name a type"); 3053b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3054b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3055b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Finally fill in MemberPointerLocInfo fields. 305651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 3057b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TL.setClassTInfo(ClsTInfo); 30584adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 305951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 306051bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 306154e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 306254e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 306351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 306451bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 306551bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 306651bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 306751bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 306851bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 306951bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 307051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 307151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 307251bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 307351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 307451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 307551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 307651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 307751bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 3078796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeBegin(Chunk.Loc); 3079796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeEnd(Chunk.EndLoc); 3080dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor TL.setTrailingReturn(!!Chunk.Fun.TrailingReturnType); 308151bd803fbdade51d674598ed45da3d54190a656cJohn McCall 308251bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 308354e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 3084d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 308554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 30864adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 308751bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 30884adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 3089075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara void VisitParenTypeLoc(ParenTypeLoc TL) { 3090075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Chunk.Kind == DeclaratorChunk::Paren); 3091075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setLParenLoc(Chunk.Loc); 3092075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setRParenLoc(Chunk.EndLoc); 3093075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 30941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 309551bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 30969f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 30974adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 309851bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 309951bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 31004adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3101a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 310251bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 310351bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 310405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// 310505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// \param ReturnTypeInfo For declarators whose return type does not show 310605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// up in the normal place in the declaration specifiers (such as a C++ 310705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// conversion function), this pointer will refer to a type source information 310805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// for that return type. 3109a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 311005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas GregorSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T, 311105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo) { 3112a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 3113a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 311451bd803fbdade51d674598ed45da3d54190a656cJohn McCall 3115a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Handle parameter packs whose type is a pack expansion. 3116a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (isa<PackExpansionType>(T)) { 3117a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor cast<PackExpansionTypeLoc>(CurrTL).setEllipsisLoc(D.getEllipsisLoc()); 3118a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 3119a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 3120a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 31218ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 312214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall while (isa<AttributedTypeLoc>(CurrTL)) { 312314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributedTypeLoc TL = cast<AttributedTypeLoc>(CurrTL); 312414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, D.getTypeObject(i).getAttrs()); 312514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall CurrTL = TL.getNextTypeLoc().getUnqualifiedLoc(); 312614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 312714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 3128b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(Context, D.getTypeObject(i)).Visit(CurrTL); 312951bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 31304adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 3131f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 3132b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // If we have different source information for the return type, use 3133b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // that. This really only applies to C++ conversion functions. 3134b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ReturnTypeInfo) { 313505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeLoc TL = ReturnTypeInfo->getTypeLoc(); 313605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); 313705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); 3138b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } else { 3139c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(Context, D.getDeclSpec()).Visit(CurrTL); 314005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor } 314105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 3142a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 31434adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 31444adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3145a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 3146b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallParsedType Sema::CreateParsedType(QualType T, TypeSourceInfo *TInfo) { 31471bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 31481bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 31491bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 3150eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 3151eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor TypeAlignment); 3152a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 31531bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 31541bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 3155b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return ParsedType::make(QualType(LocT, 0)); 31561bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 31571bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 31581bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 31591bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 3160b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("LocInfoType leaked into the type system; an opaque TypeTy*" 316135d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 316235d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 31631bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 31641bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 3165f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallTypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 31665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 31675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 31685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 31691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3170d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S); 3171bf1a028246d884a540aeafa38e89be59a269b072John McCall QualType T = TInfo->getType(); 31725153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 3173809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 31745912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 3175e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall // Make sure there are no unused decl attributes on the declarator. 3176cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // We don't want to do this for ObjC parameters because we're going 3177cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // to apply them to the actual parameter declaration. 3178cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall if (D.getContext() != Declarator::ObjCParameterContext) 3179cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall checkUnusedDeclAttributes(D); 3180e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 3181402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus) { 3182402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 31836d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 3184402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 3185402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 3186b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return CreateParsedType(T, TInfo); 31875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 31885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3189e97179c675b341927807c718be215c8d1aab8acbDouglas GregorParsedType Sema::ActOnObjCInstanceType(SourceLocation Loc) { 3190e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor QualType T = Context.getObjCInstanceType(); 3191e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor TypeSourceInfo *TInfo = Context.getTrivialTypeSourceInfo(T, Loc); 3192e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor return CreateParsedType(T, TInfo); 3193e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor} 3194e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3195e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3196c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3197c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 3198c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3199232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3200232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 3201c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 3202c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 32031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 3204c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 32050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3206232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 320729e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "No type shall be qualified by 320829e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // qualifiers for two or more different address spaces." 3209232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 3210c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 3211e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3212c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3213232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 32141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3215020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "A function type shall not be 3216020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // qualified by an address-space qualifier." 3217020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne if (Type->isFunctionType()) { 3218020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_address_function_type); 3219020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne Attr.setInvalid(); 3220020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne return; 3221020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne } 3222020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne 3223232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 3224545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 3225f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3226e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3227c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3228232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3229545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *ASArgExpr = static_cast<Expr *>(Attr.getArg(0)); 3230232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 3231ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (ASArgExpr->isTypeDependent() || ASArgExpr->isValueDependent() || 3232ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 3233dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_space_not_int) 3234dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner << ASArgExpr->getSourceRange(); 3235e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3236c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3237232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3238232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3239efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 3240efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 3241efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 3242efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 3243efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 3244e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3245efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3246efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3247efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 3248efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3249efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 32500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 3251efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 3252efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 32530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall << Qualifiers::MaxAddressSpace << ASArgExpr->getSourceRange(); 3254e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3255efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3256efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3257efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 32581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 3259f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 3260c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 3261c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 3262b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis/// handleObjCOwnershipTypeAttr - Process an objc_ownership 3263f85e193739c953358c865005855253af4f68a497John McCall/// attribute on the specified type. 3264f85e193739c953358c865005855253af4f68a497John McCall/// 3265f85e193739c953358c865005855253af4f68a497John McCall/// Returns 'true' if the attribute was handled. 3266b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 3267f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, 3268f85e193739c953358c865005855253af4f68a497John McCall QualType &type) { 3269e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis bool NonObjCPointer = false; 3270e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 3271e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (!type->isDependentType()) { 3272e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (const PointerType *ptr = type->getAs<PointerType>()) { 3273e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis QualType pointee = ptr->getPointeeType(); 3274e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (pointee->isObjCRetainableType() || pointee->isPointerType()) 3275e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 3276e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // It is important not to lose the source info that there was an attribute 3277e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // applied to non-objc pointer. We will create an attributed type but 3278e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // its type will be the same as the original type. 3279e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis NonObjCPointer = true; 3280e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } else if (!type->isObjCRetainableType()) { 3281e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 3282e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3283e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3284f85e193739c953358c865005855253af4f68a497John McCall 3285f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 3286440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis SourceLocation AttrLoc = attr.getLoc(); 3287440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isMacroID()) 3288440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis AttrLoc = S.getSourceManager().getImmediateExpansionRange(AttrLoc).first; 3289f85e193739c953358c865005855253af4f68a497John McCall 3290f85e193739c953358c865005855253af4f68a497John McCall if (type.getQualifiers().getObjCLifetime()) { 3291440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_attr_objc_ownership_redundant) 3292f85e193739c953358c865005855253af4f68a497John McCall << type; 3293f85e193739c953358c865005855253af4f68a497John McCall return true; 3294f85e193739c953358c865005855253af4f68a497John McCall } 3295f85e193739c953358c865005855253af4f68a497John McCall 3296f85e193739c953358c865005855253af4f68a497John McCall if (!attr.getParameterName()) { 3297440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_attribute_argument_n_not_string) 3298b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis << "objc_ownership" << 1; 3299f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3300f85e193739c953358c865005855253af4f68a497John McCall return true; 3301f85e193739c953358c865005855253af4f68a497John McCall } 3302f85e193739c953358c865005855253af4f68a497John McCall 3303f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime; 3304f85e193739c953358c865005855253af4f68a497John McCall if (attr.getParameterName()->isStr("none")) 3305f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_ExplicitNone; 3306f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("strong")) 3307f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Strong; 3308f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("weak")) 3309f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Weak; 3310f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("autoreleasing")) 3311f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Autoreleasing; 3312f85e193739c953358c865005855253af4f68a497John McCall else { 3313440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::warn_attribute_type_not_supported) 3314b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis << "objc_ownership" << attr.getParameterName(); 3315f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3316f85e193739c953358c865005855253af4f68a497John McCall return true; 3317f85e193739c953358c865005855253af4f68a497John McCall } 3318f85e193739c953358c865005855253af4f68a497John McCall 3319f85e193739c953358c865005855253af4f68a497John McCall // Consume lifetime attributes without further comment outside of 3320f85e193739c953358c865005855253af4f68a497John McCall // ARC mode. 3321f85e193739c953358c865005855253af4f68a497John McCall if (!S.getLangOptions().ObjCAutoRefCount) 3322f85e193739c953358c865005855253af4f68a497John McCall return true; 3323f85e193739c953358c865005855253af4f68a497John McCall 3324e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (NonObjCPointer) { 3325e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis StringRef name = attr.getName()->getName(); 3326e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis switch (lifetime) { 3327e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_None: 3328e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: 3329e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis break; 3330e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Strong: name = "__strong"; break; 3331e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Weak: name = "__weak"; break; 3332e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: name = "__autoreleasing"; break; 3333e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3334e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis S.Diag(AttrLoc, diag::warn_objc_object_attribute_wrong_type) 3335e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis << name << type; 3336e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3337e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 3338f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 3339f85e193739c953358c865005855253af4f68a497John McCall qs.setObjCLifetime(lifetime); 3340f85e193739c953358c865005855253af4f68a497John McCall QualType origType = type; 3341e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (!NonObjCPointer) 3342e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis type = S.Context.getQualifiedType(type, qs); 3343f85e193739c953358c865005855253af4f68a497John McCall 3344f85e193739c953358c865005855253af4f68a497John McCall // If we have a valid source location for the attribute, use an 3345f85e193739c953358c865005855253af4f68a497John McCall // AttributedType instead. 3346440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isValid()) 3347b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis type = S.Context.getAttributedType(AttributedType::attr_objc_ownership, 3348f85e193739c953358c865005855253af4f68a497John McCall origType, type); 3349f85e193739c953358c865005855253af4f68a497John McCall 33509f084a3166b684573ba49df28fc5792bc37d92e1John McCall // Forbid __weak if the runtime doesn't support it. 3351f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_Weak && 33525cad82236ecc0a2eeed2edd75e119f6069a99f4cArgyrios Kyrtzidis !S.getLangOptions().ObjCRuntimeHasWeak && !NonObjCPointer) { 3353f85e193739c953358c865005855253af4f68a497John McCall 3354f85e193739c953358c865005855253af4f68a497John McCall // Actually, delay this until we know what we're parsing. 3355f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 3356f85e193739c953358c865005855253af4f68a497John McCall S.DelayedDiagnostics.add( 3357440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis sema::DelayedDiagnostic::makeForbiddenType( 3358440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.getSourceManager().getExpansionLoc(AttrLoc), 3359f85e193739c953358c865005855253af4f68a497John McCall diag::err_arc_weak_no_runtime, type, /*ignored*/ 0)); 3360f85e193739c953358c865005855253af4f68a497John McCall } else { 3361440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_arc_weak_no_runtime); 3362f85e193739c953358c865005855253af4f68a497John McCall } 3363f85e193739c953358c865005855253af4f68a497John McCall 3364f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3365f85e193739c953358c865005855253af4f68a497John McCall return true; 3366f85e193739c953358c865005855253af4f68a497John McCall } 3367742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 3368742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian // Forbid __weak for class objects marked as 3369742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian // objc_arc_weak_reference_unavailable 3370742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (lifetime == Qualifiers::OCL_Weak) { 3371742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian QualType T = type; 3372742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian while (const PointerType *ptr = T->getAs<PointerType>()) 3373742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian T = ptr->getPointeeType(); 3374742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (const ObjCObjectPointerType *ObjT = T->getAs<ObjCObjectPointerType>()) { 3375742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian ObjCInterfaceDecl *Class = ObjT->getInterfaceDecl(); 33767263feeb367ab55af7e9a6fd701148b1b8264dbaFariborz Jahanian if (Class->isArcWeakrefUnavailable()) { 3377440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_arc_unsupported_weak_class); 3378742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian S.Diag(ObjT->getInterfaceDecl()->getLocation(), 3379742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian diag::note_class_declared); 3380742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 3381742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 3382742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 3383742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 3384f85e193739c953358c865005855253af4f68a497John McCall return true; 3385f85e193739c953358c865005855253af4f68a497John McCall} 3386f85e193739c953358c865005855253af4f68a497John McCall 3387711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// handleObjCGCTypeAttr - Process the __attribute__((objc_gc)) type 3388711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// attribute on the specified type. Returns true to indicate that 3389711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// the attribute was handled, false to indicate that the type does 3390711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// not permit the attribute. 3391711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 3392711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 3393711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 3394711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 3395711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3396711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this isn't some kind of pointer. 3397711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!type->isPointerType() && 3398711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isObjCObjectPointerType() && 3399711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isBlockPointerType()) 3400711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3401711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3402711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (type.getObjCGCAttr() != Qualifiers::GCNone) { 3403711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_multiple_objc_gc); 3404711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3405711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3406d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 34071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3408d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 3409711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!attr.getParameterName()) { 3410711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 3411ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian << "objc_gc" << 1; 3412711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3413711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3414ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 34150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 3416711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 3417711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3418711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3419711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3420d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 3421711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getParameterName()->isStr("weak")) 34220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 3423711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (attr.getParameterName()->isStr("strong")) 34240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 3425d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 3426711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_type_not_supported) 3427711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << "objc_gc" << attr.getParameterName(); 3428711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3429711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3430d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 34311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 343214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall QualType origType = type; 343314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getObjCGCQualType(origType, GCAttr); 343414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 343514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // Make an attributed type to preserve the source information. 343614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (attr.getLoc().isValid()) 343714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getAttributedType(AttributedType::attr_objc_gc, 343814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall origType, type); 343914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 3440711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3441d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 3442d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 3443e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCallnamespace { 3444e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// A helper class to unwrap a type down to a function for the 3445e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// purposes of applying attributes there. 3446e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// 3447e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// Use: 3448e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// FunctionTypeUnwrapper unwrapped(SemaRef, T); 3449e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// if (unwrapped.isFunctionType()) { 3450e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// const FunctionType *fn = unwrapped.get(); 3451e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// // change fn somehow 3452e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// T = unwrapped.wrap(fn); 3453e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// } 3454e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall struct FunctionTypeUnwrapper { 3455e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall enum WrapKind { 3456e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Desugar, 3457e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Parens, 3458e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Pointer, 3459e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall BlockPointer, 3460e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Reference, 3461e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall MemberPointer 3462e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 3463e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3464e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType Original; 3465e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *Fn; 34665f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned char /*WrapKind*/, 8> Stack; 3467e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3468e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionTypeUnwrapper(Sema &S, QualType T) : Original(T) { 3469e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall while (true) { 3470e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *Ty = T.getTypePtr(); 3471e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<FunctionType>(Ty)) { 3472e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = cast<FunctionType>(Ty); 3473e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 3474e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ParenType>(Ty)) { 3475e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ParenType>(Ty)->getInnerType(); 3476e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Parens); 3477e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<PointerType>(Ty)) { 3478e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<PointerType>(Ty)->getPointeeType(); 3479e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Pointer); 3480e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<BlockPointerType>(Ty)) { 3481e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<BlockPointerType>(Ty)->getPointeeType(); 3482e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(BlockPointer); 3483e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<MemberPointerType>(Ty)) { 3484e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<MemberPointerType>(Ty)->getPointeeType(); 3485e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(MemberPointer); 3486e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ReferenceType>(Ty)) { 3487e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ReferenceType>(Ty)->getPointeeType(); 3488e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Reference); 3489e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else { 3490e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *DTy = Ty->getUnqualifiedDesugaredType(); 3491e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (Ty == DTy) { 3492e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = 0; 3493e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 3494e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3495e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3496e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = QualType(DTy, 0); 3497e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Desugar); 3498e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3499e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3500e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3501e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3502e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall bool isFunctionType() const { return (Fn != 0); } 3503e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *get() const { return Fn; } 3504e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3505e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(Sema &S, const FunctionType *New) { 3506e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // If T wasn't modified from the unwrapped type, do nothing. 3507e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (New == get()) return Original; 3508e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3509e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = New; 3510e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(S.Context, Original, 0); 3511e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3512e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3513e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall private: 3514e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, QualType Old, unsigned I) { 3515e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) 3516e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(Fn, Old.getQualifiers()); 3517e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3518e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Build up the inner type, applying the qualifiers from the old 3519e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // type to the new type. 3520e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall SplitQualType SplitOld = Old.split(); 3521e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3522e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // As a special case, tail-recurse if there are no qualifiers. 3523e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (SplitOld.second.empty()) 3524e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, SplitOld.first, I); 3525e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(wrap(C, SplitOld.first, I), SplitOld.second); 3526e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3527e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3528e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, const Type *Old, unsigned I) { 3529e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) return QualType(Fn, 0); 3530e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3531e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall switch (static_cast<WrapKind>(Stack[I++])) { 3532e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Desugar: 3533e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // This is the point at which we potentially lose source 3534e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // information. 3535e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, Old->getUnqualifiedDesugaredType(), I); 3536e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3537e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Parens: { 3538e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<ParenType>(Old)->getInnerType(), I); 3539e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getParenType(New); 3540e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3541e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3542e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Pointer: { 3543e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<PointerType>(Old)->getPointeeType(), I); 3544e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getPointerType(New); 3545e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3546e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3547e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case BlockPointer: { 3548e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<BlockPointerType>(Old)->getPointeeType(),I); 3549e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getBlockPointerType(New); 3550e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3551e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3552e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case MemberPointer: { 3553e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const MemberPointerType *OldMPT = cast<MemberPointerType>(Old); 3554e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldMPT->getPointeeType(), I); 3555e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getMemberPointerType(New, OldMPT->getClass()); 3556e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3557e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3558e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Reference: { 3559e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const ReferenceType *OldRef = cast<ReferenceType>(Old); 3560e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldRef->getPointeeType(), I); 3561e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<LValueReferenceType>(OldRef)) 3562e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getLValueReferenceType(New, OldRef->isSpelledAsLValue()); 3563e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall else 3564e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getRValueReferenceType(New); 3565e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3566e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3567e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3568e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall llvm_unreachable("unknown wrapping kind"); 3569e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3570e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 3571e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall} 3572e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3573711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Process an individual function attribute. Returns true to 3574711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// indicate that the attribute was handled, false if it wasn't. 3575711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 3576711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 3577711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 3578711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 3579e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3580711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionTypeUnwrapper unwrapped(S, type); 35812455636163fdd18581d7fdae816433f886d88213Mike Stump 3582711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getKind() == AttributeList::AT_noreturn) { 3583711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) 358404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 3585e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3586e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Delay if this is not a function type. 3587711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 3588711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3589425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 3590425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 3591711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withNoReturn(true); 3592711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3593711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3594711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3595425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 3596f85e193739c953358c865005855253af4f68a497John McCall // ns_returns_retained is not always a type attribute, but if we got 3597f85e193739c953358c865005855253af4f68a497John McCall // here, we're treating it as one right now. 3598f85e193739c953358c865005855253af4f68a497John McCall if (attr.getKind() == AttributeList::AT_ns_returns_retained) { 3599f85e193739c953358c865005855253af4f68a497John McCall assert(S.getLangOptions().ObjCAutoRefCount && 3600f85e193739c953358c865005855253af4f68a497John McCall "ns_returns_retained treated as type attribute in non-ARC"); 3601f85e193739c953358c865005855253af4f68a497John McCall if (attr.getNumArgs()) return true; 3602f85e193739c953358c865005855253af4f68a497John McCall 3603f85e193739c953358c865005855253af4f68a497John McCall // Delay if this is not a function type. 3604f85e193739c953358c865005855253af4f68a497John McCall if (!unwrapped.isFunctionType()) 3605f85e193739c953358c865005855253af4f68a497John McCall return false; 3606f85e193739c953358c865005855253af4f68a497John McCall 3607f85e193739c953358c865005855253af4f68a497John McCall FunctionType::ExtInfo EI 3608f85e193739c953358c865005855253af4f68a497John McCall = unwrapped.get()->getExtInfo().withProducesResult(true); 3609f85e193739c953358c865005855253af4f68a497John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3610f85e193739c953358c865005855253af4f68a497John McCall return true; 3611f85e193739c953358c865005855253af4f68a497John McCall } 3612f85e193739c953358c865005855253af4f68a497John McCall 3613711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getKind() == AttributeList::AT_regparm) { 3614711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned value; 3615711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, value)) 3616711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 36171e030eb1194763b42c1752723be23b1515f48981John McCall 3618711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this is not a function type. 3619711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 3620008df5dce3938456ae7ea2e7ab3b2d12391ebf3eJohn McCall return false; 36211e030eb1194763b42c1752723be23b1515f48981John McCall 3622ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Diagnose regparm with fastcall. 3623ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis const FunctionType *fn = unwrapped.get(); 3624ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis CallingConv CC = fn->getCallConv(); 3625ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis if (CC == CC_X86FastCall) { 3626ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 3627ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC) 3628ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm"; 3629ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 3630ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 3631ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 3632ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 3633e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionType::ExtInfo EI = 3634711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unwrapped.get()->getExtInfo().withRegParm(value); 3635711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3636711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3637425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 3638425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 363904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 3640711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 3641711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 3642711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3643f82b4e85b1219295cad4b5851b035575bc293010John McCall 364404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if the type didn't work out to a function. 3645711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) return false; 364604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 3647711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionType *fn = unwrapped.get(); 3648711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CCOld = fn->getCallConv(); 3649064f7db69def9299f5f4d9a32114afc10b6a6420Charles Davis if (S.Context.getCanonicalCallConv(CC) == 3650e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Context.getCanonicalCallConv(CCOld)) { 3651ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis FunctionType::ExtInfo EI= unwrapped.get()->getExtInfo().withCallingConv(CC); 3652ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3653711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3654e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 365504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 36568e68f1c8a2919ea83c2053731d6011074f1062e1Roman Divacky if (CCOld != (S.LangOpts.MRTD ? CC_X86StdCall : CC_Default)) { 365704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Should we diagnose reapplications of the same convention? 3658711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 365904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC) 366004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CCOld); 3661711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3662711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 366304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 366404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 366504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 366604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 3667711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isa<FunctionNoProtoType>(fn)) { 3668711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_knr) 366904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 3670711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3671711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 367204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 367304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 3674711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(fn); 367504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 3676711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_varargs) 367704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 3678711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3679711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 368004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 3681ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 3682ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Also diagnose fastcall with regparm. 3683a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman if (fn->getHasRegParm()) { 3684ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 3685ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm" 3686ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC); 3687ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 3688ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 3689ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 369004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 3691f82b4e85b1219295cad4b5851b035575bc293010John McCall 3692711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withCallingConv(CC); 3693711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3694711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3695f82b4e85b1219295cad4b5851b035575bc293010John McCall} 3696f82b4e85b1219295cad4b5851b035575bc293010John McCall 3697207f4d8543529221932af82836016a2ef066c917Peter Collingbourne/// Handle OpenCL image access qualifiers: read_only, write_only, read_write 3698207f4d8543529221932af82836016a2ef066c917Peter Collingbournestatic void HandleOpenCLImageAccessAttribute(QualType& CurType, 3699207f4d8543529221932af82836016a2ef066c917Peter Collingbourne const AttributeList &Attr, 3700207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Sema &S) { 3701207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Check the attribute arguments. 3702207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (Attr.getNumArgs() != 1) { 3703207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3704207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3705207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 3706207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3707207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 3708207f4d8543529221932af82836016a2ef066c917Peter Collingbourne llvm::APSInt arg(32); 3709207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 3710207f4d8543529221932af82836016a2ef066c917Peter Collingbourne !sizeExpr->isIntegerConstantExpr(arg, S.Context)) { 3711207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 3712207f4d8543529221932af82836016a2ef066c917Peter Collingbourne << "opencl_image_access" << sizeExpr->getSourceRange(); 3713207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3714207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 3715207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3716207f4d8543529221932af82836016a2ef066c917Peter Collingbourne unsigned iarg = static_cast<unsigned>(arg.getZExtValue()); 3717207f4d8543529221932af82836016a2ef066c917Peter Collingbourne switch (iarg) { 3718207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_only: 3719207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_write_only: 3720207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_write: 3721207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 3722207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 3723207f4d8543529221932af82836016a2ef066c917Peter Collingbourne default: 3724207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 3725207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 3726207f4d8543529221932af82836016a2ef066c917Peter Collingbourne << sizeExpr->getSourceRange(); 3727207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3728207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 3729207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3730207f4d8543529221932af82836016a2ef066c917Peter Collingbourne} 3731207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 37326e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 37336e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 37346e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 37356e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 37366e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 37376e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 37386e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 3739788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, 3740788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Sema &S) { 374156affbcaeff9a01caa70b2a237f7e6ac31c8ded6Bob Wilson // Check the attribute arguments. 37426e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 37436e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3744e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 37456e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 37466e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 37476e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 37486e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 3749ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 3750ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 37516e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 37526e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << "vector_size" << sizeExpr->getSourceRange(); 3753e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 37546e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 37556e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 37566e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the base type must be integer or float, and can't already be a vector. 3757f60946222721d9ba3c059563935c17b84703187aDouglas Gregor if (!CurType->isIntegerType() && !CurType->isRealFloatingType()) { 37586e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 3759e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 37606e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 37616e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 37626e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 37636e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 37646e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 37656e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 37666e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 37676e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 37686e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 37696e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 3770e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 37716e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 37726e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 37736e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 37746e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 37756e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 3776e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 37776e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 37786e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 37796e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 37806e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 37816e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 3782788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, 3783e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::GenericVector); 37846e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 37856e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 37864ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// \brief Process the OpenCL-like ext_vector_type attribute when it occurs on 37874ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// a type. 37884ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregorstatic void HandleExtVectorTypeAttr(QualType &CurType, 37894ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor const AttributeList &Attr, 37904ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Sema &S) { 37914ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Expr *sizeExpr; 37924ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 37934ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Special case where the argument is a template id. 37944ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Attr.getParameterName()) { 37954ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CXXScopeSpec SS; 37964ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor UnqualifiedId id; 37974ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 37984ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 37994ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor ExprResult Size = S.ActOnIdExpression(S.getCurScope(), SS, id, false, 38004ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor false); 38014ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 38024ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 38034ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 38044ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 38054ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } else { 38064ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // check the attribute arguments. 38074ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Attr.getNumArgs() != 1) { 38084ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 38094ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 38104ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 38114ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Attr.getArg(0); 38124ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 38134ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 38144ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Create the vector type. 38154ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor QualType T = S.BuildExtVectorType(CurType, sizeExpr, Attr.getLoc()); 38164ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (!T.isNull()) 38174ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CurType = T; 38184ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor} 38194ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 38204211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// HandleNeonVectorTypeAttr - The "neon_vector_type" and 38214211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// "neon_polyvector_type" attributes are used to create vector types that 38224211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// are mangled according to ARM's ABI. Otherwise, these types are identical 38234211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// to those created with the "vector_size" attribute. Unlike "vector_size" 38244211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// the argument to these Neon attributes is the number of vector elements, 38254211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// not the vector size in bytes. The vector width and element type must 38264211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// match one of the standard Neon vector types. 38274211bb68cff1f310be280f66a59520548ef99d8fBob Wilsonstatic void HandleNeonVectorTypeAttr(QualType& CurType, 38284211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const AttributeList &Attr, Sema &S, 38294211bb68cff1f310be280f66a59520548ef99d8fBob Wilson VectorType::VectorKind VecKind, 38304211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const char *AttrName) { 38314211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Check the attribute arguments. 38324211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (Attr.getNumArgs() != 1) { 38334211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 38344211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 38354211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 38364211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 38374211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The number of elements must be an ICE. 38384211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Expr *numEltsExpr = static_cast<Expr *>(Attr.getArg(0)); 38394211bb68cff1f310be280f66a59520548ef99d8fBob Wilson llvm::APSInt numEltsInt(32); 38404211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (numEltsExpr->isTypeDependent() || numEltsExpr->isValueDependent() || 38414211bb68cff1f310be280f66a59520548ef99d8fBob Wilson !numEltsExpr->isIntegerConstantExpr(numEltsInt, S.Context)) { 38424211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 38434211bb68cff1f310be280f66a59520548ef99d8fBob Wilson << AttrName << numEltsExpr->getSourceRange(); 38444211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 38454211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 38464211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 38474211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Only certain element types are supported for Neon vectors. 38484211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const BuiltinType* BTy = CurType->getAs<BuiltinType>(); 38494211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (!BTy || 38504211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (VecKind == VectorType::NeonPolyVector && 38514211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::SChar && 38524211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short) || 38534211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (BTy->getKind() != BuiltinType::SChar && 38544211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UChar && 38554211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short && 38564211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UShort && 38574211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Int && 38584211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UInt && 38594211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::LongLong && 38604211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::ULongLong && 38614211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Float)) { 38624211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) <<CurType; 38634211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 38644211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 38654211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 38664211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The total size of the vector must be 64 or 128 bits. 38674211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 38684211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned numElts = static_cast<unsigned>(numEltsInt.getZExtValue()); 38694211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned vecSize = typeSize * numElts; 38704211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (vecSize != 64 && vecSize != 128) { 38714211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_bad_neon_vector_size) << CurType; 38724211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 38734211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 38744211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 38754211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 38764211bb68cff1f310be280f66a59520548ef99d8fBob Wilson CurType = S.Context.getVectorType(CurType, numElts, VecKind); 38774211bb68cff1f310be280f66a59520548ef99d8fBob Wilson} 38784211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 3879711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, QualType &type, 3880711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool isDeclSpec, AttributeList *attrs) { 3881c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 3882c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 3883c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 3884c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 3885711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3886711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 3887711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 3888711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr = *attrs; 3889711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr.getNext(); 3890711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3891e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Skip attributes that were marked to be invalid. 3892711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 3893e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara continue; 3894e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 3895b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 3896b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 3897711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 3898c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner default: break; 389904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 3900682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth case AttributeList::AT_may_alias: 3901682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // FIXME: This attribute needs to actually be handled, but if we ignore 3902682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // it it breaks large amounts of Linux software. 3903682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth attr.setUsedAsTypeAttr(); 3904682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth break; 3905c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner case AttributeList::AT_address_space: 3906711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleAddressSpaceTypeAttribute(type, attr, state.getSema()); 3907e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 3908c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 3909711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 3910711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!handleObjCPointerTypeAttr(state, attr, type)) 3911711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttr(state, attr, type); 3912e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 3913d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 391404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_vector_size: 3915711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleVectorSizeAttr(type, attr, state.getSema()); 3916e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 3917f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 39184ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor case AttributeList::AT_ext_vector_type: 39194ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (state.getDeclarator().getDeclSpec().getStorageClassSpec() 39204ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor != DeclSpec::SCS_typedef) 39214ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor HandleExtVectorTypeAttr(type, attr, state.getSema()); 3922e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 39234ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor break; 39244211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 3925711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 3926711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonVector, "neon_vector_type"); 3927e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 39284211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 39294211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 3930711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 3931711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonPolyVector, 39324211bb68cff1f310be280f66a59520548ef99d8fBob Wilson "neon_polyvector_type"); 3933e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 39344211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 3935207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case AttributeList::AT_opencl_image_access: 3936207f4d8543529221932af82836016a2ef066c917Peter Collingbourne HandleOpenCLImageAccessAttribute(type, attr, state.getSema()); 3937e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 3938207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 3939207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 3940f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_ns_returns_retained: 3941f85e193739c953358c865005855253af4f68a497John McCall if (!state.getSema().getLangOptions().ObjCAutoRefCount) 3942f85e193739c953358c865005855253af4f68a497John McCall break; 3943f85e193739c953358c865005855253af4f68a497John McCall // fallthrough into the function attrs 3944f85e193739c953358c865005855253af4f68a497John McCall 3945711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 3946e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 3947e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 3948711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Never process function type attributes as part of the 3949711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // declaration-specifiers. 3950711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isDeclSpec) 3951711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclSpec(state, attr, type); 3952711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3953711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, handle the possible delays. 3954711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (!handleFunctionTypeAttr(state, attr, type)) 3955711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttr(state, attr, type); 39566e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 3957c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 3958711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attrs = next)); 3959232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 3960232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3961e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \brief Ensure that the type of the given expression is complete. 3962e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 3963e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// This routine checks whether the expression \p E has a complete type. If the 3964e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// expression refers to an instantiable construct, that instantiation is 3965e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// performed as needed to complete its type. Furthermore 3966e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// Sema::RequireCompleteType is called for the expression's type (or in the 3967e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// case of a reference type, the referred-to type). 3968e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 3969e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \param E The expression whose type is required to be complete. 3970e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \param PD The partial diagnostic that will be printed out if the type cannot 3971e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// be completed. 3972e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 3973e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \returns \c true if the type of \p E is incomplete and diagnosed, \c false 3974e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// otherwise. 3975e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruthbool Sema::RequireCompleteExprType(Expr *E, const PartialDiagnostic &PD, 3976e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth std::pair<SourceLocation, 3977e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth PartialDiagnostic> Note) { 3978e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth QualType T = E->getType(); 3979e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 3980e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Fast path the case where the type is already complete. 3981e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (!T->isIncompleteType()) 3982e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth return false; 3983e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 3984e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Incomplete array types may be completed by the initializer attached to 3985e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // their definitions. For static data members of class templates we need to 3986e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // instantiate the definition to get this initializer and complete the type. 3987e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (T->isIncompleteArrayType()) { 3988e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 3989e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 3990e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (Var->isStaticDataMember() && 3991e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth Var->getInstantiatedFromStaticDataMember()) { 399236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 399336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MemberSpecializationInfo *MSInfo = Var->getMemberSpecializationInfo(); 399436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor assert(MSInfo && "Missing member specialization information?"); 399536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getTemplateSpecializationKind() 399636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor != TSK_ExplicitSpecialization) { 399736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // If we don't already have a point of instantiation, this is it. 399836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getPointOfInstantiation().isInvalid()) { 399936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MSInfo->setPointOfInstantiation(E->getLocStart()); 400036f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 400136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // This is a modification of an existing AST node. Notify 400236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // listeners. 400336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (ASTMutationListener *L = getASTMutationListener()) 400436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor L->StaticDataMemberInstantiated(Var); 400536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 400636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 400736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor InstantiateStaticDataMemberDefinition(E->getExprLoc(), Var); 400836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 400936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // Update the type to the newly instantiated definition's type both 401036f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // here and within the expression. 401136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (VarDecl *Def = Var->getDefinition()) { 401236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setDecl(Def); 401336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor T = Def->getType(); 401436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setType(T); 401536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor E->setType(T); 401636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 4017f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor } 4018f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor 4019e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // We still go on to try to complete the type independently, as it 4020e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // may also require instantiations or diagnostics if it remains 4021e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // incomplete. 4022e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4023e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4024e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4025e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4026e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4027e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // FIXME: Are there other cases which require instantiating something other 4028e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // than the type to complete the type of an expression? 4029e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4030e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Look through reference types and complete the referred type. 4031e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (const ReferenceType *Ref = T->getAs<ReferenceType>()) 4032e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth T = Ref->getPointeeType(); 4033e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4034e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth return RequireCompleteType(E->getExprLoc(), T, PD, Note); 4035e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth} 4036e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 40371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 40384ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 40394ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 40404ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 404186447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 404286447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 404386447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 404486447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 404586447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 40464ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 40474ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 40484ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 40494ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 40504ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 40514ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 40521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @param PD The partial diagnostic that will be printed out if T is not a 4053b790661a15d93941d2c33a0ea328254277b3d7e3Anders Carlsson/// complete type. 40544ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 40554ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 40564ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 405791a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 40588c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson const PartialDiagnostic &PD, 40598c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson std::pair<SourceLocation, 40608c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson PartialDiagnostic> Note) { 406191a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson unsigned diag = PD.getDiagID(); 40621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4063573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 4064573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 4065690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 4066690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 4067690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 40681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 4069690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 4070690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 40714ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 4072d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor NamedDecl *Def = 0; 4073d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor if (!T->isIncompleteType(&Def)) { 4074d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // If we know about the definition but it is not visible, complain. 4075d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor if (diag != 0 && Def && !LookupResult::isVisible(Def)) { 4076d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // Suppress this error outside of a SFINAE context if we've already 4077d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // emitted the error once for this type. There's no usefulness in 4078d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // repeating the diagnostic. 4079d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // FIXME: Add a Fix-It that imports the corresponding module or includes 4080d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // the header. 4081d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor if (isSFINAEContext() || HiddenDefinitions.insert(Def)) { 4082d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor Diag(Loc, diag::err_module_private_definition) << T; 4083d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor Diag(Def->getLocation(), diag::note_previous_definition); 4084d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 4085d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 4086d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor 40874ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 4088d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 40894ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 4090bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const TagType *Tag = T->getAs<TagType>(); 4091bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const ObjCInterfaceType *IFace = 0; 4092bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 4093bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag) { 4094bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 4095bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->isInvalidDecl()) 4096bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 4097bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 4098bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 4099bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->hasExternalLexicalStorage()) { 4100bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(Tag->getDecl()); 4101bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!Tag->isIncompleteType()) 4102bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 4103bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4104bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4105bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan else if ((IFace = T->getAs<ObjCInterfaceType>())) { 4106bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 4107bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->isInvalidDecl()) 4108bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 4109bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 4110bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 4111bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->hasExternalLexicalStorage()) { 4112bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(IFace->getDecl()); 4113bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!IFace->isIncompleteType()) 4114bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 4115bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4116bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4117bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 4118d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 4119923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 4120923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 4121923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 412289c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor if (const ConstantArrayType *Array = Context.getAsConstantArrayType(T)) 4123923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 4124923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 41252943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 4126d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 4127972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 4128972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 4129d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 41305842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor /*Complain=*/diag != 0); 41311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 4132d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 4133d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass()) { 4134b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor MemberSpecializationInfo *MSInfo = Rec->getMemberSpecializationInfo(); 4135b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor assert(MSInfo && "Missing member specialization information?"); 4136357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 4137b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor if (MSInfo->getTemplateSpecializationKind() 4138972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor != TSK_ExplicitSpecialization) 4139f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 4140f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 4141f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 4142f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor /*Complain=*/diag != 0); 4143d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 4144d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 4145d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 41462943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 41475842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor if (diag == 0) 41485842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 4149b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 41504ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 415191a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson Diag(Loc, PD) << T; 4152b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 41538c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson // If we have a note, produce it. 41548c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson if (!Note.first.isInvalid()) 41558c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson Diag(Note.first, Note.second); 41568c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson 41574ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 415801620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 41594ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 41601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 41614ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 41624ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 4163b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor << QualType(Tag, 0); 4164b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 4165b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // If the Objective-C class was a forward declaration, produce a note. 4166b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (IFace && !IFace->getDecl()->isInvalidDecl()) 4167b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor Diag(IFace->getDecl()->getLocation(), diag::note_forward_class); 41684ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 41694ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 41704ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 4171e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 4172fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 4173fe6b2d481d91140923f4541f273b253291884214Douglas Gregor const PartialDiagnostic &PD) { 4174fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PD, 4175fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 4176fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 4177fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 4178fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 4179fe6b2d481d91140923f4541f273b253291884214Douglas Gregor unsigned DiagID) { 4180fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PDiag(DiagID), 4181fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 4182fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 4183fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 41849f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @brief Ensure that the type T is a literal type. 41859f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 41869f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// This routine checks whether the type @p T is a literal type. If @p T is an 41879f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// incomplete type, an attempt is made to complete it. If @p T is a literal 41889f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// type, or @p AllowIncompleteType is true and @p T is an incomplete type, 41899f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// returns false. Otherwise, this routine issues the diagnostic @p PD (giving 41909f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// it the type @p T), along with notes explaining why the type is not a 41919f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// literal type, and returns true. 41929f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 41939f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param Loc The location in the source that the non-literal type 41949f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// diagnostic should refer to. 41959f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 41969f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param T The type that this routine is examining for literalness. 41979f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 41989f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param PD The partial diagnostic that will be printed out if T is not a 41999f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// literal type. 42009f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 42019f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param AllowIncompleteType If true, an incomplete type will be considered 42029f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// acceptable. 42039f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 42049f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @returns @c true if @p T is not a literal type and a diagnostic was emitted, 42059f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @c false otherwise. 42069f569cca2a4c5fb6026005434e27025b9e71309dRichard Smithbool Sema::RequireLiteralType(SourceLocation Loc, QualType T, 42079f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith const PartialDiagnostic &PD, 42089f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith bool AllowIncompleteType) { 42099f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(!T->isDependentType() && "type should not be dependent"); 42109f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42119f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith bool Incomplete = RequireCompleteType(Loc, T, 0); 42129f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (T->isLiteralType() || (AllowIncompleteType && Incomplete)) 42139f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return false; 42149f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42159f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (PD.getDiagID() == 0) 42169f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 42179f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42189f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(Loc, PD) << T; 42199f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42209f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (T->isVariableArrayType()) 42219f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 42229f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42239f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith const RecordType *RT = T->getBaseElementTypeUnsafe()->getAs<RecordType>(); 42249f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!RT) 42259f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 42269f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42279f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith const CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl()); 42289f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42299f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If the class has virtual base classes, then it's not an aggregate, and 42309f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // cannot have any constexpr constructors, so is non-literal. This is better 42319f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // to diagnose than the resulting absence of constexpr constructors. 42329f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (RD->getNumVBases()) { 42339f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_virtual_base) 42349f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith << RD->isStruct() << RD->getNumVBases(); 42359f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->vbases_begin(), 42369f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->vbases_end(); I != E; ++I) 42379f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(I->getSourceRange().getBegin(), 42389f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_constexpr_virtual_base_here) << I->getSourceRange(); 42399f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (!RD->isAggregate() && !RD->hasConstexprNonCopyMoveConstructor()) { 42409f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_no_constexpr_ctors) << RD; 42419f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42429f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith switch (RD->getTemplateSpecializationKind()) { 42439f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith case TSK_Undeclared: 42449f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith case TSK_ExplicitSpecialization: 42459f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith break; 42469f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42479f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith case TSK_ImplicitInstantiation: 42489f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith case TSK_ExplicitInstantiationDeclaration: 42499f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith case TSK_ExplicitInstantiationDefinition: 42509f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If the base template had constexpr constructors which were 42519f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // instantiated as non-constexpr constructors, explain why. 42529f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::ctor_iterator I = RD->ctor_begin(), 42539f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->ctor_end(); I != E; ++I) { 42549f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if ((*I)->isCopyConstructor() || (*I)->isMoveConstructor()) 42559f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith continue; 42569f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42579f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith FunctionDecl *Base = (*I)->getInstantiatedFromMemberFunction(); 42589f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (Base && Base->isConstexpr()) 42599f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith CheckConstexprFunctionDecl(*I, CCK_NoteNonConstexprInstantiation); 42609f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 42619f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 42629f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (RD->hasNonLiteralTypeFieldsOrBases()) { 42639f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->bases_begin(), 42649f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->bases_end(); I != E; ++I) { 42659f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!I->getType()->isLiteralType()) { 42669f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(I->getSourceRange().getBegin(), 42679f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_base_class) 42689f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith << RD << I->getType() << I->getSourceRange(); 42699f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 42709f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 42719f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 42729f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::field_iterator I = RD->field_begin(), 42739f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->field_end(); I != E; ++I) { 42749f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!(*I)->getType()->isLiteralType()) { 42759f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag((*I)->getLocation(), diag::note_non_literal_field) 42769f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith << RD << (*I) << (*I)->getType(); 42779f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 42785fa6a0422f12216d549d0f2991a29d5690634065Richard Smith } else if ((*I)->isMutable()) { 42795fa6a0422f12216d549d0f2991a29d5690634065Richard Smith Diag((*I)->getLocation(), diag::note_non_literal_mutable_field) << RD; 42805fa6a0422f12216d549d0f2991a29d5690634065Richard Smith return true; 42819f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 42829f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 42839f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (!RD->hasTrivialDestructor()) { 42849f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // All fields and bases are of literal types, so have trivial destructors. 42859f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If this class's destructor is non-trivial it must be user-declared. 42869f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith CXXDestructorDecl *Dtor = RD->getDestructor(); 42879f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(Dtor && "class has literal fields and bases but no dtor?"); 42889f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!Dtor) 42899f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 42909f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42919f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(Dtor->getLocation(), Dtor->isUserProvided() ? 42929f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_user_provided_dtor : 42939f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_nontrivial_dtor) << RD; 42949f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 42959f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42969f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 42979f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith} 42989f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 4299465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Retrieve a version of the type 'T' that is elaborated by Keyword 4300465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// and qualified by the nested-name-specifier contained in SS. 4301465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraQualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, 4302465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara const CXXScopeSpec &SS, QualType T) { 4303465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (T.isNull()) 4304e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 4305465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS; 4306e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (SS.isValid()) 4307465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 4308465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara else { 4309465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (Keyword == ETK_None) 4310465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T; 4311465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = 0; 4312465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 4313465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return Context.getElaboratedType(Keyword, NNS, T); 4314e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 4315af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 43162a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildTypeofExprType(Expr *E, SourceLocation Loc) { 4317fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 43182a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 43192a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 43202a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 43212b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian if (!E->isTypeDependent()) { 43222b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian QualType T = E->getType(); 4323aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian if (const TagType *TT = T->getAs<TagType>()) 4324aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian DiagnoseUseOfDecl(TT->getDecl(), E->getExprLoc()); 43252b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian } 4326af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 4327af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 4328af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 43292a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildDecltypeType(Expr *E, SourceLocation Loc) { 4330fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 43312a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 43322a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 43334b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 4334af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getDecltypeType(E); 4335af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 4336ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 4337ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean HuntQualType Sema::BuildUnaryTransformType(QualType BaseType, 4338ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::UTTKind UKind, 4339ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt SourceLocation Loc) { 4340ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt switch (UKind) { 4341ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case UnaryTransformType::EnumUnderlyingType: 4342ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType() && !BaseType->isEnumeralType()) { 4343ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Diag(Loc, diag::err_only_enums_have_underlying_types); 4344ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return QualType(); 4345ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } else { 4346ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType Underlying = BaseType; 4347ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType()) { 4348ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt EnumDecl *ED = BaseType->getAs<EnumType>()->getDecl(); 4349ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(ED && "EnumType has no EnumDecl"); 4350ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DiagnoseUseOfDecl(ED, Loc); 4351ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Underlying = ED->getIntegerType(); 4352ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4353ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(!Underlying.isNull()); 4354ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return Context.getUnaryTransformType(BaseType, Underlying, 4355ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType); 4356ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4357ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4358ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt llvm_unreachable("unknown unary transform type"); 4359ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt} 4360b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4361b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli FriedmanQualType Sema::BuildAtomicType(QualType T, SourceLocation Loc) { 4362b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (!T->isDependentType()) { 4363b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman int DisallowedKind = -1; 4364b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (T->isIncompleteType()) 4365b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // FIXME: It isn't entirely clear whether incomplete atomic types 4366b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // are allowed or not; for simplicity, ban them for the moment. 4367b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 0; 4368b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isArrayType()) 4369b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 1; 4370b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isFunctionType()) 4371b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 2; 4372b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isReferenceType()) 4373b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 3; 4374b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isAtomicType()) 4375b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 4; 4376b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T.hasQualifiers()) 4377b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 5; 4378b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (!T.isTriviallyCopyableType(Context)) 4379b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Some other non-trivially-copyable type (probably a C++ class) 4380b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 6; 4381b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4382b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (DisallowedKind != -1) { 4383b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Diag(Loc, diag::err_atomic_specifier_bad_type) << DisallowedKind << T; 4384b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return QualType(); 4385b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 4386b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4387b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // FIXME: Do we need any handling for ARC here? 4388b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 4389b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4390b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Build the pointer type. 4391b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return Context.getAtomicType(T); 4392b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman} 4393