SemaType.cpp revision 440ec2ebbe2e7aa2a5f733a41cf845d354d16e23
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" 304994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl#include "llvm/ADT/SmallPtrSet.h" 3187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor#include "llvm/Support/ErrorHandling.h" 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 345db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// isOmittedBlockReturnType - Return true if this declarator is missing a 355db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// return type because this is a omitted return type on a block literal. 368ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redlstatic bool isOmittedBlockReturnType(const Declarator &D) { 375db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getContext() != Declarator::BlockLiteralContext || 388ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl D.getDeclSpec().hasTypeSpecifier()) 395db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 405db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 415db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 0) 42a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^{ ... } 435db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 445db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 1 && 455db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner D.getTypeObject(0).Kind == DeclaratorChunk::Function) 46a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^(int X, float Y) { ... } 475db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 485db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 495db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner} 505db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 512792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall/// diagnoseBadTypeAttribute - Diagnoses a type attribute which 522792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall/// doesn't apply to the given type. 532792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCallstatic void diagnoseBadTypeAttribute(Sema &S, const AttributeList &attr, 542792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall QualType type) { 55108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth bool useExpansionLoc = false; 562792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 572792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall unsigned diagID = 0; 582792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall switch (attr.getKind()) { 592792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall case AttributeList::AT_objc_gc: 602792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagID = diag::warn_pointer_attribute_wrong_type; 61108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth useExpansionLoc = true; 622792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall break; 632792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 6405d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis case AttributeList::AT_objc_ownership: 6505d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis diagID = diag::warn_objc_object_attribute_wrong_type; 66108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth useExpansionLoc = true; 6705d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis break; 6805d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis 692792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall default: 702792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall // Assume everything else was a function attribute. 712792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagID = diag::warn_function_attribute_wrong_type; 722792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall break; 732792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 742792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 752792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall SourceLocation loc = attr.getLoc(); 765f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef name = attr.getName()->getName(); 772792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 782792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall // The GC attributes are usually written with macros; special-case them. 79108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth if (useExpansionLoc && loc.isMacroID() && attr.getParameterName()) { 80834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (attr.getParameterName()->isStr("strong")) { 81834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (S.findMacroSpelling(loc, "__strong")) name = "__strong"; 82834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall } else if (attr.getParameterName()->isStr("weak")) { 83834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (S.findMacroSpelling(loc, "__weak")) name = "__weak"; 842792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 852792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 862792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 872792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall S.Diag(loc, diagID) << name << type; 882792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall} 892792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 90711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// objc_gc applies to Objective-C pointers or, otherwise, to the 91711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// smallest available pointer type (i.e. 'void*' in 'void**'). 92711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define OBJC_POINTER_TYPE_ATTRS_CASELIST \ 93f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_objc_gc: \ 94b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributeList::AT_objc_ownership 95711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 96711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// Function type attributes. 97711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define FUNCTION_TYPE_ATTRS_CASELIST \ 98711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_noreturn: \ 99711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: \ 100711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: \ 101711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: \ 102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: \ 103711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: \ 104414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_regparm: \ 105414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs \ 106711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 107711c52bb20d0c69063b52a99826fb7d2835501f1John McCallnamespace { 108711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// An object which stores processing state for the entire 109711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// GetTypeForDeclarator process. 110711c52bb20d0c69063b52a99826fb7d2835501f1John McCall class TypeProcessingState { 111711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &sema; 112711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 113711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The declarator being processed. 114711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator; 115711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 116711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The index of the declarator chunk we're currently processing. 117711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// May be the total number of valid chunks, indicating the 118711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// DeclSpec. 119711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex; 120711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 121711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Whether there are non-trivial modifications to the decl spec. 122711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool trivial; 123711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1247ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall /// Whether we saved the attributes in the decl spec. 1257ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall bool hasSavedAttrs; 1267ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 127711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The original set of attributes on the DeclSpec. 1285f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<AttributeList*, 2> savedAttrs; 129711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 130711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// A list of attributes to diagnose the uselessness of when the 131711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// processing is complete. 1325f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<AttributeList*, 2> ignoredTypeAttrs; 133711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 134711c52bb20d0c69063b52a99826fb7d2835501f1John McCall public: 135711c52bb20d0c69063b52a99826fb7d2835501f1John McCall TypeProcessingState(Sema &sema, Declarator &declarator) 136711c52bb20d0c69063b52a99826fb7d2835501f1John McCall : sema(sema), declarator(declarator), 137711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex(declarator.getNumTypeObjects()), 1387ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall trivial(true), hasSavedAttrs(false) {} 139711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 140711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &getSema() const { 141711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return sema; 142711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 143711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 144711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &getDeclarator() const { 145711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator; 146711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 147711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 148711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned getCurrentChunkIndex() const { 149711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return chunkIndex; 150711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 151711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 152711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void setCurrentChunkIndex(unsigned idx) { 153711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(idx <= declarator.getNumTypeObjects()); 154711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex = idx; 155711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 156711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 157711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&getCurrentAttrListRef() const { 158711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(chunkIndex <= declarator.getNumTypeObjects()); 159711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (chunkIndex == declarator.getNumTypeObjects()) 160711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return getMutableDeclSpec().getAttributes().getListRef(); 161711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator.getTypeObject(chunkIndex).getAttrListRef(); 162711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 163711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 164711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Save the current set of attributes on the DeclSpec. 165711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void saveDeclSpecAttrs() { 166711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't try to save them multiple times. 1677ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (hasSavedAttrs) return; 168711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 169711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &spec = getMutableDeclSpec(); 170711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (AttributeList *attr = spec.getAttributes().getList(); attr; 171711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr = attr->getNext()) 172711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.push_back(attr); 173711c52bb20d0c69063b52a99826fb7d2835501f1John McCall trivial &= savedAttrs.empty(); 1747ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall hasSavedAttrs = true; 175711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 176711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 177711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Record that we had nowhere to put the given type attribute. 178711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// We will diagnose such attributes later. 179711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void addIgnoredTypeAttr(AttributeList &attr) { 180711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ignoredTypeAttrs.push_back(&attr); 181711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 182711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 183711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Diagnose all the ignored type attributes, given that the 184711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// declarator worked out to the given type. 185711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void diagnoseIgnoredTypeAttrs(QualType type) const { 1865f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner for (SmallVectorImpl<AttributeList*>::const_iterator 187711c52bb20d0c69063b52a99826fb7d2835501f1John McCall i = ignoredTypeAttrs.begin(), e = ignoredTypeAttrs.end(); 1882792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall i != e; ++i) 1892792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(getSema(), **i, type); 190711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 191711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 192711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ~TypeProcessingState() { 193711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (trivial) return; 194711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 195711c52bb20d0c69063b52a99826fb7d2835501f1John McCall restoreDeclSpecAttrs(); 196711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 197711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 198711c52bb20d0c69063b52a99826fb7d2835501f1John McCall private: 199711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &getMutableDeclSpec() const { 200711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return const_cast<DeclSpec&>(declarator.getDeclSpec()); 201711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 202711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 203711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void restoreDeclSpecAttrs() { 2047ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall assert(hasSavedAttrs); 2057ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 2067ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (savedAttrs.empty()) { 2077ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall getMutableDeclSpec().getAttributes().set(0); 2087ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall return; 2097ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall } 2107ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 211711c52bb20d0c69063b52a99826fb7d2835501f1John McCall getMutableDeclSpec().getAttributes().set(savedAttrs[0]); 212711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = savedAttrs.size() - 1; i != e; ++i) 213711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs[i]->setNext(savedAttrs[i+1]); 214711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.back()->setNext(0); 215711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 216711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 217711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 218711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Basically std::pair except that we really want to avoid an 219711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// implicit operator= for safety concerns. It's also a minor 220711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// link-time optimization for this to be a private type. 221711c52bb20d0c69063b52a99826fb7d2835501f1John McCall struct AttrAndList { 222711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The attribute. 223711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &first; 224711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 225711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The head of the list the attribute is currently in. 226711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&second; 227711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 228711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttrAndList(AttributeList &attr, AttributeList *&head) 229711c52bb20d0c69063b52a99826fb7d2835501f1John McCall : first(attr), second(head) {} 230711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 23104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 23204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 233711c52bb20d0c69063b52a99826fb7d2835501f1John McCallnamespace llvm { 234711c52bb20d0c69063b52a99826fb7d2835501f1John McCall template <> struct isPodLike<AttrAndList> { 235711c52bb20d0c69063b52a99826fb7d2835501f1John McCall static const bool value = true; 236711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 237711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 238711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 239711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrIntoList(AttributeList &attr, AttributeList *&head) { 240711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setNext(head); 241711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = &attr; 242711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 243711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 244711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrOutOfList(AttributeList &attr, AttributeList *&head) { 245711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (head == &attr) { 246711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = attr.getNext(); 247711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 24804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 249711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 250711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *cur = head; 251711c52bb20d0c69063b52a99826fb7d2835501f1John McCall while (true) { 252711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(cur && cur->getNext() && "ran out of attrs?"); 253711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (cur->getNext() == &attr) { 254711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur->setNext(attr.getNext()); 255711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 256711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 257711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur = cur->getNext(); 258711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 259711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 260711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 261711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void moveAttrFromListToList(AttributeList &attr, 262711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&fromList, 263711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&toList) { 264711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, fromList); 265711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrIntoList(attr, toList); 266711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 267711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 268711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, 269711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type, bool isDeclSpec, 270711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attrs); 271711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 272711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 273711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 274711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type); 275711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 276711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 277711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type); 278711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 279b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 280f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, QualType &type); 281f85e193739c953358c865005855253af4f68a497John McCall 282711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCPointerTypeAttr(TypeProcessingState &state, 283711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type) { 284f85e193739c953358c865005855253af4f68a497John McCall if (attr.getKind() == AttributeList::AT_objc_gc) 285f85e193739c953358c865005855253af4f68a497John McCall return handleObjCGCTypeAttr(state, attr, type); 286b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis assert(attr.getKind() == AttributeList::AT_objc_ownership); 287b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis return handleObjCOwnershipTypeAttr(state, attr, type); 288711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 289711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 290711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Given that an objc_gc attribute was written somewhere on a 291711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declaration *other* than on the declarator itself (for which, use 292711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributeObjCPointerTypeAttrFromDeclarator), and given that it 293711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// didn't apply in whatever position it was written in, try to move 294711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// it to a more appropriate position. 295711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeObjCPointerTypeAttr(TypeProcessingState &state, 296711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 297711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 298711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 299711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 300711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 301711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 302711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 303711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 304711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 305711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunk.getAttrListRef()); 306711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 307711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 308711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 309711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 310711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 311711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 312711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't walk through these. 313711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 314711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 315711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 316711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto error; 317711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 318711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 319711c52bb20d0c69063b52a99826fb7d2835501f1John McCall error: 3202792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 3212792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(state.getSema(), attr, type); 322711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 323711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 324711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Distribute an objc_gc type attribute that was written on the 325711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator. 326711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 327711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeObjCPointerTypeAttrFromDeclarator(TypeProcessingState &state, 328711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 329711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 330711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 331711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 332711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // objc_gc goes on the innermost pointer to something that's not a 333711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // pointer. 334711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned innermost = -1U; 335711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool considerDeclSpec = true; 336711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 337711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 338711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 339711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 340711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 341711c52bb20d0c69063b52a99826fb7d2835501f1John McCall innermost = i; 342ae278a3a57595349a411f6474938d4dd1b263a0eJohn McCall continue; 343711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 344711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 345711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 346711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 347711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 348711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 349711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 350711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 351711c52bb20d0c69063b52a99826fb7d2835501f1John McCall considerDeclSpec = false; 352711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto done; 353711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 354711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 355711c52bb20d0c69063b52a99826fb7d2835501f1John McCall done: 356711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 357711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // That might actually be the decl spec if we weren't blocked by 358711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // anything in the declarator. 359711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (considerDeclSpec) { 3607ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (handleObjCPointerTypeAttr(state, attr, declSpecType)) { 3617ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // Splice the attribute into the decl spec. Prevents the 3627ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // attribute from being applied multiple times and gives 3637ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // the source-location-filler something to work with. 3647ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall state.saveDeclSpecAttrs(); 3657ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall moveAttrFromListToList(attr, declarator.getAttrListRef(), 3667ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall declarator.getMutableDeclSpec().getAttributes().getListRef()); 367711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3687ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall } 369711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 370711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 371711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, if we found an appropriate chunk, splice the attribute 372711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // into it. 373711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (innermost != -1U) { 374711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, declarator.getAttrListRef(), 375711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getTypeObject(innermost).getAttrListRef()); 376711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 377711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 378711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 379711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, diagnose when we're done building the type. 380711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 381711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 382711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 383711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 384711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written somewhere in a declaration 385711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// *other* than on the declarator itself or in the decl spec. Given 386711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// that it didn't apply in whatever position it was written in, try 387711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// to move it to a more appropriate position. 388711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeFunctionTypeAttr(TypeProcessingState &state, 389711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 390711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 391711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 392711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 393711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to push the attribute from the return type of a function to 394711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the function itself. 395711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 396711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 397711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 398711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 399711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 400711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunk.getAttrListRef()); 401711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 402711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 403711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 404711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 405711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 406711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 407711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 408711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 409711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 410711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 411711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 412711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4132792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(state.getSema(), attr, type); 414711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 415711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 416711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Try to distribute a function type attribute to the innermost 417711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// function chunk or type. Returns true if the attribute was 418711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributed, false if no location was found. 419711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool 420711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrToInnermost(TypeProcessingState &state, 421711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 422711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&attrList, 423711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 424711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 425711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 426711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Put it on the innermost function chunk, if there is one. 427711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 428711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 429711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (chunk.Kind != DeclaratorChunk::Function) continue; 430711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 431711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, attrList, chunk.getAttrListRef()); 432711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 433711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 434711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 435f85e193739c953358c865005855253af4f68a497John McCall if (handleFunctionTypeAttr(state, attr, declSpecType)) { 436f85e193739c953358c865005855253af4f68a497John McCall spliceAttrOutOfList(attr, attrList); 437f85e193739c953358c865005855253af4f68a497John McCall return true; 438f85e193739c953358c865005855253af4f68a497John McCall } 439f85e193739c953358c865005855253af4f68a497John McCall 440f85e193739c953358c865005855253af4f68a497John McCall return false; 441711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 442711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 443711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written in the decl spec. Try to 444711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 445711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 446711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclSpec(TypeProcessingState &state, 447711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 448711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 449711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.saveDeclSpecAttrs(); 450711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 451711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 452711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 453711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.getCurrentAttrListRef(), 454711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 455711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 456711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 457711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 458711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 459711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 460711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 461711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 462711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written on the declarator. Try to 463711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 464711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 465711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclarator(TypeProcessingState &state, 466711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 467711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 468711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 469711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 470711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 471711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 472711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getAttrListRef(), 473711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 474711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 475711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 476711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 477711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 478711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 479711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 480711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 481711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 482711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// \brief Given that there are attributes written on the declarator 483711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// itself, try to distribute any type attributes to the appropriate 484711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator chunk. 485711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// 486711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// These are attributes like the following: 487711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f ATTR; 488711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int (f ATTR)(); 489711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// but not necessarily this: 490711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f() ATTR; 491711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeTypeAttrsFromDeclarator(TypeProcessingState &state, 492711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 493711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Collect all the type attributes from the declarator itself. 494711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getDeclarator().getAttributes() && "declarator has no attrs!"); 495711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attr = state.getDeclarator().getAttributes(); 496711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 497711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 498711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr->getNext(); 499711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 500711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr->getKind()) { 501711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 502711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttrFromDeclarator(state, *attr, declSpecType); 503711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 504711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 505f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_ns_returns_retained: 506f85e193739c953358c865005855253af4f68a497John McCall if (!state.getSema().getLangOptions().ObjCAutoRefCount) 507f85e193739c953358c865005855253af4f68a497John McCall break; 508f85e193739c953358c865005855253af4f68a497John McCall // fallthrough 509f85e193739c953358c865005855253af4f68a497John McCall 510711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 511711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclarator(state, *attr, declSpecType); 512711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 513711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 514711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: 515711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 516711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 517711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attr = next)); 518711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 520711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Add a synthetic '()' to a block-literal declarator if it is 521711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// required, given the return type. 522711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void maybeSynthesizeBlockSignature(TypeProcessingState &state, 523711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType declSpecType) { 524711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 525711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 526711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // First, check whether the declarator would produce a function, 527711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // i.e. whether the innermost semantic chunk is a function. 528711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.isFunctionDeclarator()) { 529711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If so, make that declarator a prototyped declarator. 530711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getFunctionTypeInfo().hasPrototype = true; 531711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 532711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 533711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 534da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // If there are any type objects, the type as written won't name a 535da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // function, regardless of the decl spec type. This is because a 536da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // block signature declarator is always an abstract-declarator, and 537da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // abstract-declarators can't just be parentheses chunks. Therefore 538da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // we need to build a function chunk unless there are no type 539da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // objects and the decl spec type is a function. 540711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!declarator.getNumTypeObjects() && declSpecType->isFunctionType()) 541711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 542711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 543da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // Note that there *are* cases with invalid declarators where 544da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // declarators consist solely of parentheses. In general, these 545da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // occur only in failed efforts to make function declarators, so 546da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // faking up the function chunk is still the right thing to do. 547711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 548711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, we need to fake up a function declarator. 549711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation loc = declarator.getSourceRange().getBegin(); 550711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 551711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // ...and *prepend* it to the declarator. 552711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.AddInnermostTypeInfo(DeclaratorChunk::getFunction( 553711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*proto*/ true, 554711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*variadic*/ false, SourceLocation(), 555711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*args*/ 0, 0, 556711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*type quals*/ 0, 55783f51722ed2b8134810cb178f39e44da811de7cdDouglas Gregor /*ref-qualifier*/true, SourceLocation(), 55890ebed0734fac9b464c9bdff53fbf85a86b27f32Douglas Gregor /*mutable qualifier*/SourceLocation(), 5596e5d319b671dbb0ecf70619834aa23c853d17621Sebastian Redl /*EH*/ EST_None, SourceLocation(), 0, 0, 0, 0, 560711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*parens*/ loc, loc, 561711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator)); 562711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 563711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // For consistency, make sure the state still has us as processing 564711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the decl spec. 565711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getCurrentChunkIndex() == declarator.getNumTypeObjects() - 1); 566711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(declarator.getNumTypeObjects()); 56704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 56804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 569930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// \brief Convert the specified declspec to the appropriate type 570930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// object. 5715db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// \param D the declarator containing the declaration specifier. 5725153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// \returns The type described by the declaration specifiers. This function 5735153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// never returns null. 5748cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType ConvertDeclSpecToType(TypeProcessingState &state) { 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: Should move the logic from DeclSpec::Finish to here for validity 5765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // checking. 577711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 5788cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 579711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 580711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const DeclSpec &DS = declarator.getDeclSpec(); 581711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation DeclLoc = declarator.getIdentifierLoc(); 5825db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (DeclLoc.isInvalid()) 5835db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner DeclLoc = DS.getSourceRange().getBegin(); 5841564e3906cad604a42bd131e584751a75589a9c4Chris Lattner 585711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ASTContext &Context = S.Context; 5861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5875db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner QualType Result; 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecType()) { 58996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner case DeclSpec::TST_void: 59096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Result = Context.VoidTy; 59196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner break; 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_char: 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 594fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.CharTy; 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) 596fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.SignedCharTy; 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else { 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Unknown TSS value"); 600fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.UnsignedCharTy; 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 602958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 60364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case DeclSpec::TST_wchar: 60464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 60564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.WCharTy; 60664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) { 607711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 608f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 60964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getSignedWCharType(); 61064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } else { 61164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 61264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis "Unknown TSS value"); 613711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 614f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 61564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getUnsignedWCharType(); 61664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } 61764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 618f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char16: 619f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 620f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 621f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char16Ty; 622f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 623f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char32: 624f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 625f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 626f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char32Ty; 627f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 628d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner case DeclSpec::TST_unspecified: 62962f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner // "<proto1,proto2>" is an objc qualified ID with a missing id. 630097e916b617bb4a069a03764024c310ed42a6424Chris Lattner if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 631c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 632c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**)PQ, 633c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 634c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 63562f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner break; 63662f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner } 6375db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 6385db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // If this is a missing declspec in a block literal return context, then it 6395db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // is inferred from the return statements inside the block. 640711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isOmittedBlockReturnType(declarator)) { 6415db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner Result = Context.DependentTy; 6425db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 6435db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 6441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 645d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 646d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 647d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 648d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 649d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 650d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 651d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 652711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().ImplicitInt) { 65335d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 65435d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 6553f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 656711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_declspec) 6573f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 658849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(DS.getSourceRange().getBegin(), "int"); 6593f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 6604310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 661d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 662d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 663d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 664d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 6654310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor // FIXME: Does Microsoft really have the implicit int extension in C++? 666711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().CPlusPlus && 66762ec1f2fd7368542bb926c04797fb07023547694Francois Pichet !S.getLangOptions().MicrosoftExt) { 668711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_missing_type_specifier) 6693f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 6701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 671b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 672b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 673b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 674711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 675b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 676711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_type_specifier) 6773f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 678b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 679d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 6801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 6823cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 6835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 6845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 685fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 686fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 687fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 688311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 689311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 690311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 691311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 692711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!S.getLangOptions().C99 && 693711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !S.getLangOptions().CPlusPlus0x) 694711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 695311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 699fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 700fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 701fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 702311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 703311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 704311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 705311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 706711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!S.getLangOptions().C99 && 707711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !S.getLangOptions().CPlusPlus0x) 708711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 709311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 712958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7133cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 714fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 715958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 716958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 717fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 718958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 719fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 72039d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne 72139d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne if (S.getLangOptions().OpenCL && !S.getOpenCLOptions().cl_khr_fp64) { 72239d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne S.Diag(DS.getTypeSpecTypeLoc(), diag::err_double_requires_fp64); 72339d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne declarator.setInvalidType(true); 72439d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne } 725958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 726fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 7275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 730711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 7318f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 732711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7338f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 73499dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_struct: { 738b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeDecl *D = dyn_cast_or_null<TypeDecl>(DS.getRepAsDecl()); 7396e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 7406e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 7416e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 742711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7436e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 7446e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 7456e24726524c2b51b31bb4b622aa678a46b024f42John McCall 746a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 7470daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara S.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeNameLoc()); 748a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 750a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 751a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 753a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 7542191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 7550daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara // In both C and C++, make an ElaboratedType. 7560daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara ElaboratedTypeKeyword Keyword 7570daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); 7580daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara Result = S.getElaboratedType(Keyword, DS.getTypeSpecScope(), Result); 7590daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara 7605153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D->isInvalidDecl()) 761711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 762958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7641a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 7675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 768711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 76927940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall if (Result.isNull()) 770711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 77127940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall else if (DeclSpec::ProtocolQualifierListTy PQ 77227940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall = DS.getProtocolQualifiers()) { 773c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *ObjT = Result->getAs<ObjCObjectType>()) { 774c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Silently drop any existing protocol qualifiers. 775c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // TODO: determine whether that's the right thing to do. 776c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjT->getNumProtocols()) 777c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = ObjT->getBaseType(); 778c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 779c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getNumProtocolQualifiers()) 780c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Result, 781c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 782c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 783c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCIdType()) { 784ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 785c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 786c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 787c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 788c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 789c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCClassType()) { 7904262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 791c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy, 792c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 793c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 794c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 7953f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 796711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 7973f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 798711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7993f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 800c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 8011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 803958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 8045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 805958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 806e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 807711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 808958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 809730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (!Result->isDependentType()) 810730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (const TagType *TT = Result->getAs<TagType>()) 811711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.DiagnoseUseOfDecl(TT->getDecl(), DS.getTypeSpecTypeLoc()); 812d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 813fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 814958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 815d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 816b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 817d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 818d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 819711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildTypeofExprType(E, DS.getTypeSpecTypeLoc()); 8204b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 8214b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 822711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8234b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 824958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 825d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 8266fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 827b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 8286fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 8296fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 830711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildDecltypeType(E, DS.getTypeSpecTypeLoc()); 831af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 832af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 833711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 834af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 8356fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 8366fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 837ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case DeclSpec::TST_underlyingType: 838db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt Result = S.GetTypeFromParser(DS.getRepAsType()); 839db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt assert(!Result.isNull() && "Didn't get a type for __underlying_type?"); 840ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = S.BuildUnaryTransformType(Result, 841ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType, 842ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DS.getTypeSpecTypeLoc()); 843ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (Result.isNull()) { 844ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = Context.IntTy; 845ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt declarator.setInvalidType(true); 846db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt } 847db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt break; 848db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt 849e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson case DeclSpec::TST_auto: { 850e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 85134b41d939a1328f484511c6002ba2456db879a29Richard Smith Result = Context.getAutoType(QualType()); 852e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 853e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson } 8541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 855a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall case DeclSpec::TST_unknown_anytype: 856a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall Result = Context.UnknownAnyTy; 857a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall break; 858a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall 859809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 8605153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 861711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8625153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 865958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 866f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 867711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().Freestanding) 868711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 869fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 87082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 87182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 87282287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 873e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::VectorKind VecKind = VectorType::AltiVecVector; 874788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner if (DS.isTypeAltiVecPixel()) 875e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecPixel; 876788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner else if (DS.isTypeAltiVecBool()) 877e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecBool; 878e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson Result = Context.getVectorType(Result, 128/typeSize, VecKind); 879f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 8801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 88147423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis // FIXME: Imaginary. 88247423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis if (DS.getTypeSpecComplex() == DeclSpec::TSC_imaginary) 883711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::err_imaginary_not_supported); 8841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 885711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Before we process any type attributes, synthesize a block literal 886711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // function declarator if necessary. 887711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.getContext() == Declarator::BlockLiteralContext) 888711c52bb20d0c69063b52a99826fb7d2835501f1John McCall maybeSynthesizeBlockSignature(state, Result); 889711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 890711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any type attributes from the decl spec. This may cause the 891711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // list of type attributes to be temporarily saved while the type 892711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // attributes are pushed around. 893711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = DS.getAttributes().getList()) 894711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, Result, true, attrs); 8951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 89696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 89796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 89896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 89996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Enforce C99 6.7.3p2: "Types other than pointer types derived from object 90096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // or incomplete types shall not be restrict-qualified." C++ also allows 90196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // restrict-qualified references. 9020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_restrict) { 9032b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isAnyPointerType() || Result->isReferenceType()) { 9042b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian QualType EltTy; 9052b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isObjCObjectPointerType()) 9062b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result; 9072b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian else 9082b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result->isPointerType() ? 9092b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<PointerType>()->getPointeeType() : 9102b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<ReferenceType>()->getPointeeType(); 9111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 912bad0e656c3732e3539a9cd6525de721d7e47408bDouglas Gregor // If we have a pointer or reference, the pointee must have an object 913bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner // incomplete type. 914bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner if (!EltTy->isIncompleteOrObjectType()) { 915711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 916d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_invalid_pointee) 917d162584991885ab004a02573a73ce06422b921fcChris Lattner << EltTy << DS.getSourceRange(); 9180953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 919bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } 920bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } else { 921711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 922711c52bb20d0c69063b52a99826fb7d2835501f1John McCall diag::err_typecheck_invalid_restrict_not_pointer) 923d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 9240953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 92596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 92696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 92896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 92996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 93096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 93196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 93296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Get some location to point at, either the C or V location. 93396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner SourceLocation Loc; 9340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 93596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getConstSpecLoc(); 9360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 93796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getVolatileSpecLoc(); 9380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 9390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((TypeQuals & DeclSpec::TQ_restrict) && 9400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Has CVR quals but not C, V, or R?"); 9410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Loc = DS.getRestrictSpecLoc(); 94296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 943711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(Loc, diag::warn_typecheck_function_qualifiers) 944d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 94596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 947f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 948f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 949f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 950f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 951f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 9521a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 9531a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 954f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 9550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 9560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 9571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 9581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(TypeQuals); 9600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Result = Context.getQualifiedType(Result, Quals); 96196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 963f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 964f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 965f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 966cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 967cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 968cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 9691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 970cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 971cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 972cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 9732865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 9742865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Qs) { 9752865474261a608c7873b87ba4af110d17907896dJohn McCall // Enforce C99 6.7.3p2: "Types other than pointer types derived from 9762865474261a608c7873b87ba4af110d17907896dJohn McCall // object or incomplete types shall not be restrict-qualified." 9772865474261a608c7873b87ba4af110d17907896dJohn McCall if (Qs.hasRestrict()) { 9782865474261a608c7873b87ba4af110d17907896dJohn McCall unsigned DiagID = 0; 9792865474261a608c7873b87ba4af110d17907896dJohn McCall QualType ProblemTy; 9802865474261a608c7873b87ba4af110d17907896dJohn McCall 9812865474261a608c7873b87ba4af110d17907896dJohn McCall const Type *Ty = T->getCanonicalTypeInternal().getTypePtr(); 9822865474261a608c7873b87ba4af110d17907896dJohn McCall if (const ReferenceType *RTy = dyn_cast<ReferenceType>(Ty)) { 9832865474261a608c7873b87ba4af110d17907896dJohn McCall if (!RTy->getPointeeType()->isIncompleteOrObjectType()) { 9842865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 9852865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<ReferenceType>()->getPointeeType(); 9862865474261a608c7873b87ba4af110d17907896dJohn McCall } 9872865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) { 9882865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 9892865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 9902865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 9912865474261a608c7873b87ba4af110d17907896dJohn McCall } 9922865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const MemberPointerType *PTy = dyn_cast<MemberPointerType>(Ty)) { 9932865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 9942865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 9952865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 9962865474261a608c7873b87ba4af110d17907896dJohn McCall } 9972865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (!Ty->isDependentType()) { 9982865474261a608c7873b87ba4af110d17907896dJohn McCall // FIXME: this deserves a proper diagnostic 9992865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10002865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T; 10012865474261a608c7873b87ba4af110d17907896dJohn McCall } 10022865474261a608c7873b87ba4af110d17907896dJohn McCall 10032865474261a608c7873b87ba4af110d17907896dJohn McCall if (DiagID) { 10042865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(Loc, DiagID) << ProblemTy; 10052865474261a608c7873b87ba4af110d17907896dJohn McCall Qs.removeRestrict(); 10062865474261a608c7873b87ba4af110d17907896dJohn McCall } 10072865474261a608c7873b87ba4af110d17907896dJohn McCall } 10082865474261a608c7873b87ba4af110d17907896dJohn McCall 10092865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getQualifiedType(T, Qs); 10102865474261a608c7873b87ba4af110d17907896dJohn McCall} 10112865474261a608c7873b87ba4af110d17907896dJohn McCall 1012075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// \brief Build a paren type including \p T. 1013075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo BagnaraQualType Sema::BuildParenType(QualType T) { 1014075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara return Context.getParenType(T); 1015075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara} 1016075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1017f85e193739c953358c865005855253af4f68a497John McCall/// Given that we're building a pointer or reference to the given 1018f85e193739c953358c865005855253af4f68a497John McCallstatic QualType inferARCLifetimeForPointee(Sema &S, QualType type, 1019f85e193739c953358c865005855253af4f68a497John McCall SourceLocation loc, 1020f85e193739c953358c865005855253af4f68a497John McCall bool isReference) { 1021f85e193739c953358c865005855253af4f68a497John McCall // Bail out if retention is unrequired or already specified. 1022f85e193739c953358c865005855253af4f68a497John McCall if (!type->isObjCLifetimeType() || 1023f85e193739c953358c865005855253af4f68a497John McCall type.getObjCLifetime() != Qualifiers::OCL_None) 1024f85e193739c953358c865005855253af4f68a497John McCall return type; 1025f85e193739c953358c865005855253af4f68a497John McCall 1026f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime implicitLifetime = Qualifiers::OCL_None; 1027f85e193739c953358c865005855253af4f68a497John McCall 1028f85e193739c953358c865005855253af4f68a497John McCall // If the object type is const-qualified, we can safely use 1029f85e193739c953358c865005855253af4f68a497John McCall // __unsafe_unretained. This is safe (because there are no read 1030f85e193739c953358c865005855253af4f68a497John McCall // barriers), and it'll be safe to coerce anything but __weak* to 1031f85e193739c953358c865005855253af4f68a497John McCall // the resulting type. 1032f85e193739c953358c865005855253af4f68a497John McCall if (type.isConstQualified()) { 1033f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 1034f85e193739c953358c865005855253af4f68a497John McCall 1035f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, check whether the static type does not require 1036f85e193739c953358c865005855253af4f68a497John McCall // retaining. This currently only triggers for Class (possibly 1037f85e193739c953358c865005855253af4f68a497John McCall // protocol-qualifed, and arrays thereof). 1038f85e193739c953358c865005855253af4f68a497John McCall } else if (type->isObjCARCImplicitlyUnretainedType()) { 1039f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 10405b76f373d23cc3b292ecf523349aaaa388eea375Argyrios Kyrtzidis 10415b76f373d23cc3b292ecf523349aaaa388eea375Argyrios Kyrtzidis // If we are in an unevaluated context, like sizeof, assume ExplicitNone and 10425b76f373d23cc3b292ecf523349aaaa388eea375Argyrios Kyrtzidis // don't give error. 10435b76f373d23cc3b292ecf523349aaaa388eea375Argyrios Kyrtzidis } else if (S.ExprEvalContexts.back().Context == Sema::Unevaluated) { 10445b76f373d23cc3b292ecf523349aaaa388eea375Argyrios Kyrtzidis implicitLifetime = Qualifiers::OCL_ExplicitNone; 1045f85e193739c953358c865005855253af4f68a497John McCall 1046f85e193739c953358c865005855253af4f68a497John McCall // If that failed, give an error and recover using __autoreleasing. 1047f85e193739c953358c865005855253af4f68a497John McCall } else { 1048f85e193739c953358c865005855253af4f68a497John McCall // These types can show up in private ivars in system headers, so 1049f85e193739c953358c865005855253af4f68a497John McCall // we need this to not be an error in those cases. Instead we 1050f85e193739c953358c865005855253af4f68a497John McCall // want to delay. 1051f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 1052f85e193739c953358c865005855253af4f68a497John McCall S.DelayedDiagnostics.add( 1053f85e193739c953358c865005855253af4f68a497John McCall sema::DelayedDiagnostic::makeForbiddenType(loc, 1054b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis diag::err_arc_indirect_no_ownership, type, isReference)); 1055f85e193739c953358c865005855253af4f68a497John McCall } else { 1056b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis S.Diag(loc, diag::err_arc_indirect_no_ownership) << type << isReference; 1057f85e193739c953358c865005855253af4f68a497John McCall } 1058f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_Autoreleasing; 1059f85e193739c953358c865005855253af4f68a497John McCall } 1060f85e193739c953358c865005855253af4f68a497John McCall assert(implicitLifetime && "didn't infer any lifetime!"); 1061f85e193739c953358c865005855253af4f68a497John McCall 1062f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 1063f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(implicitLifetime); 1064f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getQualifiedType(type, qs); 1065f85e193739c953358c865005855253af4f68a497John McCall} 1066f85e193739c953358c865005855253af4f68a497John McCall 1067cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 1068cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1069cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 1070cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1071cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1072cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 1073cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 1074cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1075cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 1076cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1077cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1078cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 1079cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 10802865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildPointerType(QualType T, 1081cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 1082cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 1083cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 1084cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 1085ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1086cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1087cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1088cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1089c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); 109092e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1091f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build pointers to unqualified pointers. 1092f85e193739c953358c865005855253af4f68a497John McCall if (getLangOptions().ObjCAutoRefCount) 1093f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ false); 1094f85e193739c953358c865005855253af4f68a497John McCall 1095cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 10962865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getPointerType(T); 1097cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1098cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1099cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 1100cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1101cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 1102cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1103cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1104cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 1105cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 1106cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1107cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 1108cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1109cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1110cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 1111cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 111254e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 11132865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 111454e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 11159625e44c0252485277a340746ed8ac950686156fDouglas Gregor assert(Context.getCanonicalType(T) != Context.OverloadTy && 11169625e44c0252485277a340746ed8ac950686156fDouglas Gregor "Unresolved overloaded function type"); 11179625e44c0252485277a340746ed8ac950686156fDouglas Gregor 111869d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // C++0x [dcl.ref]p6: 111969d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // If a typedef (7.1.3), a type template-parameter (14.3.1), or a 112069d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // decltype-specifier (7.1.6.2) denotes a type TR that is a reference to a 112169d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // type T, an attempt to create the type "lvalue reference to cv TR" creates 112269d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // the type "lvalue reference to T", while an attempt to create the type 112369d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // "rvalue reference to cv TR" creates the type TR. 112454e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 112554e14c4db764c0636160d26c5bbf491637c83a76John McCall 112654e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 112754e14c4db764c0636160d26c5bbf491637c83a76John McCall // 112854e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 112954e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 113054e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 113154e14c4db764c0636160d26c5bbf491637c83a76John McCall // 113254e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 113354e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 113454e14c4db764c0636160d26c5bbf491637c83a76John McCall // 113554e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 113654e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 113769d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // collapsing of references-to-references as described in C++0x. 113869d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // DR 106 and 540 introduce reference-collapsing into C++98/03. 1139cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1140cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 114133a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 1142cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 1143cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 1144cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 1145cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1146cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1147cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1148f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build references to unqualified pointers. 1149f85e193739c953358c865005855253af4f68a497John McCall if (getLangOptions().ObjCAutoRefCount) 1150f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ true); 1151f85e193739c953358c865005855253af4f68a497John McCall 1152cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 11537c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 11542865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getLValueReferenceType(T, SpelledAsLValue); 11552865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getRValueReferenceType(T); 1156cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1157cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1158e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// Check whether the specified array size makes the array type a VLA. If so, 1159e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// return true, if not, return the size of the array in SizeVal. 1160e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattnerstatic bool isArraySizeVLA(Expr *ArraySize, llvm::APSInt &SizeVal, Sema &S) { 1161e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // If the size is an ICE, it certainly isn't a VLA. 1162e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner if (ArraySize->isIntegerConstantExpr(SizeVal, S.Context)) 1163e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner return false; 1164e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1165e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // If we're in a GNU mode (like gnu99, but not c99) accept any evaluatable 1166e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // value as an extension. 1167e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner Expr::EvalResult Result; 1168e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner if (S.LangOpts.GNUMode && ArraySize->Evaluate(Result, S.Context)) { 1169e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner if (!Result.hasSideEffects() && Result.Val.isInt()) { 1170e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner SizeVal = Result.Val.getInt(); 1171e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner S.Diag(ArraySize->getLocStart(), diag::ext_vla_folded_to_constant); 1172e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner return false; 1173e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner } 1174e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner } 1175e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1176e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner return true; 1177e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner} 1178e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1179e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1180cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 1181cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1182cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 1183cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1184cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 11851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 11861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 1187cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1188cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1189cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// array type or, if there is no such entity, the location of the 1190cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have array type. 1191cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1192cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 1193cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1194cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1195cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 1196cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 1197cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 1198cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 11997e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 12000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 12017e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 1202923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (getLangOptions().CPlusPlus) { 1203138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 1204138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 1205138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // type, the (possibly cv-qualified) type void, a function type or an 1206138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 1207138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 1208138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 1209138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 1210138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 1211138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 1212138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1213138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 1214138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1215923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (T->isVoidType()) { 1216923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 1217923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1218923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1219138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1220138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (RequireNonAbstractType(Brackets.getBegin(), T, 1221138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 1222138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1223138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1224923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 1225138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 1226138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 1227923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 1228923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 1229923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1230923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1231cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1232cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 1233cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 1234ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1235cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1236cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 12371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 123834b41d939a1328f484511c6002ba2456db879a29Richard Smith if (T->getContainedAutoType()) { 123934b41d939a1328f484511c6002ba2456db879a29Richard Smith Diag(Loc, diag::err_illegal_decl_array_of_auto) 124034b41d939a1328f484511c6002ba2456db879a29Richard Smith << getPrintableNameForEntity(Entity) << T; 1241e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson return QualType(); 1242e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson } 12431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12446217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 1245cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 1246cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 1247cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 1248cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 1249c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (T->isObjCObjectType()) { 1250c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 1251c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 1252cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 12531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12545e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // Do lvalue-to-rvalue conversions on the array size expression. 1255429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (ArraySize && !ArraySize->isRValue()) { 1256429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultLvalueConversion(ArraySize); 1257429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 1258429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return QualType(); 1259429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley 1260429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ArraySize = Result.take(); 1261429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley } 12625e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall 1263cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 12645e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // TODO: in theory, if we were insane, we could allow contextual 12655e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // conversions to integer type here. 1266cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (ArraySize && !ArraySize->isTypeDependent() && 12671274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1268cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1269cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 1270cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1271cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 12722767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor llvm::APSInt ConstVal(Context.getTypeSize(Context.getSizeType())); 1273cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 1274f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 12757e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 1276f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 1277f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 1278ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()) { 12797e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 1280e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner } else if (!T->isDependentType() && !T->isIncompleteType() && 1281e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner !T->isConstantSizeType()) { 1282e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with an element type that has a non-constant-size is a VLA. 1283e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 1284e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner } else if (isArraySizeVLA(ArraySize, ConstVal, *this)) { 1285e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with a non-ICE size is a VLA. We accept any expression 1286e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // that we can fold to a non-zero positive value as an extension. 12877e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 1288cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 1289cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 1290cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 1291923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 1292b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth if (Entity) 1293b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_decl_negative_array_size) 1294b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << getPrintableNameForEntity(Entity) << ArraySize->getSourceRange(); 1295b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth else 1296b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_typecheck_negative_array_size) 1297b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << ArraySize->getSourceRange(); 1298923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1299923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1300923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 130102024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 130202024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 130302024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor Diag(ArraySize->getLocStart(), 130402024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 130502024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 1306923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 13072767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor } else if (!T->isDependentType() && !T->isVariablyModifiedType() && 13082767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor !T->isIncompleteType()) { 13092767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor // Is the array too large? 13102767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor unsigned ActiveSizeBits 13112767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor = ConstantArrayType::getNumAddressingBits(Context, T, ConstVal); 13122767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) 13132767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_too_large) 13142767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ConstVal.toString(10) 13152767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ArraySize->getSourceRange(); 13161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 13172767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 131846a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 1319cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1320af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 1321af40776922bc5c28e740adb0342faa09f35b0068David Chisnall if (!getLangOptions().C99) { 13220fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor if (T->isVariableArrayType()) { 13230fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Prohibit the use of non-POD types in VLAs. 1324f85e193739c953358c865005855253af4f68a497John McCall QualType BaseT = Context.getBaseElementType(T); 1325204ce17e0cfd9bbe229627e1e5a20c3f2f587c8cDouglas Gregor if (!T->isDependentType() && 1326f85e193739c953358c865005855253af4f68a497John McCall !BaseT.isPODType(Context) && 1327f85e193739c953358c865005855253af4f68a497John McCall !BaseT->isObjCLifetimeType()) { 13280fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::err_vla_non_pod) 1329f85e193739c953358c865005855253af4f68a497John McCall << BaseT; 13300fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor return QualType(); 13310fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } 1332a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor // Prohibit the use of VLAs during template argument deduction. 1333a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor else if (isSFINAEContext()) { 1334a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor Diag(Loc, diag::err_vla_in_sfinae); 1335a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor return QualType(); 1336a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor } 13370fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Just extwarn about VLAs. 13380fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor else 13390fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::ext_vla); 13400fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } else if (ASM != ArrayType::Normal || Quals != 0) 1341043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor Diag(Loc, 1342043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor getLangOptions().CPlusPlus? diag::err_c99_array_usage_cxx 1343043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor : diag::ext_c99_array_usage); 1344cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1345cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1346cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 1347cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 13489cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 13499cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 13509cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 13519cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 13529ae2f076ca5ab1feb3ba95629099ec2319833701John McCallQualType Sema::BuildExtVectorType(QualType T, Expr *ArraySize, 13539cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 13549cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 13559cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 13561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 13579cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 13589cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 13599cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 13609cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 13619cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 13629ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isTypeDependent() && !ArraySize->isValueDependent()) { 13639cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 13649ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isIntegerConstantExpr(vecSize, Context)) { 13659cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_argument_not_int) 13669ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << "ext_vector_type" << ArraySize->getSourceRange(); 13679cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 13689cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 13691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 13719cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 13721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 13731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13749cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 13759cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 13769ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << ArraySize->getSourceRange(); 13779cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 13789cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 13791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13804ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return Context.getExtVectorType(T, vectorSize); 13811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 13821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13839ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Context.getDependentSizedExtVectorType(T, ArraySize, AttrLoc); 13849cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 13851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1386724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \brief Build a function type. 1387724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1388724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// This routine checks the function type according to C++ rules and 1389724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// under the assumption that the result type and parameter types have 1390724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// just been instantiated from a template. It therefore duplicates 13912943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor/// some of the behavior of GetTypeForDeclarator, but in a much 1392724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// simpler form that is only suitable for this narrow use case. 1393724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1394724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param T The return type of the function. 1395724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1396724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param ParamTypes The parameter types of the function. This array 1397724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// will be modified to account for adjustments to the types of the 1398724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function parameters. 1399724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1400724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param NumParamTypes The number of parameter types in ParamTypes. 1401724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1402724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Variadic Whether this is a variadic function type. 1403724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1404724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the function type. 1405724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1406724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Loc The location of the entity whose type involves this 1407724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function type or, if there is no such entity, the location of the 1408724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type that will have function type. 1409724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1410724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Entity The name of the entity that involves the function 1411724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type, if known. 1412724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1413724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \returns A suitable function type, if there are no 1414724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// errors. Otherwise, returns a NULL type. 1415724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas GregorQualType Sema::BuildFunctionType(QualType T, 14161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType *ParamTypes, 1417724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor unsigned NumParamTypes, 1418724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Variadic, unsigned Quals, 1419c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RefQualifierKind RefQualifier, 1420fa869547eb1cab12d7e0c0dfa8ba594e336b9b32Eli Friedman SourceLocation Loc, DeclarationName Entity, 1421e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionType::ExtInfo Info) { 1422724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 142358408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(Loc, diag::err_func_returning_array_function) 142458408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1425724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1426724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 14275291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor 1428724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 1429724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor for (unsigned Idx = 0; Idx < NumParamTypes; ++Idx) { 143079e6bd379773447a74cc3e579d9081e4c5cb6d63Douglas Gregor QualType ParamType = Context.getAdjustedParameterType(ParamTypes[Idx]); 14312dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 1432724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 1433724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 1434724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1435cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 143654e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 1437724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1438724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1439724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 1440724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1441724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1442e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 1443e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = Variadic; 1444e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = Quals; 1445c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = RefQualifier; 1446e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.ExtInfo = Info; 1447e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 1448e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall return Context.getFunctionType(T, ParamTypes, NumParamTypes, EPI); 1449724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 14501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1451949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 1452949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1453949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 1454949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 14550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR Qualifiers applied to the member pointer type 1456949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 1457949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 1458949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1459949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 1460949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 14611eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 14622865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 1463949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 1464949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 1465949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 1466949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 1467949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 1468949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1469949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 1470949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 1471949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1472949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 1473949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 1474949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 1475949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1476949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1477737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // C++ 8.3.3p3: A pointer to member shall not point to ... a member 1478949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 1479949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 14808d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 1481ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 1482949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1483949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1484949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1485949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 1486949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 1487949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 1488949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1489949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1490949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1491949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 1492949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 1493949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1494949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1495949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1496d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // In the Microsoft ABI, the class is allowed to be an incomplete 1497d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // type. In such cases, the compiler makes a worst-case assumption. 1498d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // We make no such assumption right now, so emit an error if the 1499d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // class isn't a complete type. 1500bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (Context.getTargetInfo().getCXXABI() == CXXABI_Microsoft && 1501d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis RequireCompleteType(Loc, Class, diag::err_incomplete_type)) 1502d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis return QualType(); 1503d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis 15042865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getMemberPointerType(T, Class.getTypePtr()); 1505949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 15061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15079a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 15089a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15099a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 15109a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR The cvr-qualifiers to be applied to the block pointer type. 15129a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15139a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Loc The location of the entity whose type involves this 15149a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// block pointer type or, if there is no such entity, the location of the 15159a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type that will have block pointer type. 15169a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15179a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 15189a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 15199a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15209a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 15219a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 15222865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildBlockPointerType(QualType T, 15231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 15249a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 15250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 15269a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 15279a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 15289a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 15291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15302865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getBlockPointerType(T); 15319a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 15329a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 1533b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallQualType Sema::GetTypeFromParser(ParsedType Ty, TypeSourceInfo **TInfo) { 1534b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = Ty.get(); 15353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 1536a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 15373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 15383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 15393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1540a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 1541f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 1542e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 1543a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 1544e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 15451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1546a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 1547e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 1548e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 1549e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 1550a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 1551a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 1552a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis unsigned chunkIndex); 1553a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis 1554f85e193739c953358c865005855253af4f68a497John McCall/// Given that this is the declaration of a parameter under ARC, 1555f85e193739c953358c865005855253af4f68a497John McCall/// attempt to infer attributes and such for pointer-to-whatever 1556f85e193739c953358c865005855253af4f68a497John McCall/// types. 1557f85e193739c953358c865005855253af4f68a497John McCallstatic void inferARCWriteback(TypeProcessingState &state, 1558f85e193739c953358c865005855253af4f68a497John McCall QualType &declSpecType) { 1559f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 1560f85e193739c953358c865005855253af4f68a497John McCall Declarator &declarator = state.getDeclarator(); 1561f85e193739c953358c865005855253af4f68a497John McCall 1562f85e193739c953358c865005855253af4f68a497John McCall // TODO: should we care about decl qualifiers? 1563f85e193739c953358c865005855253af4f68a497John McCall 1564f85e193739c953358c865005855253af4f68a497John McCall // Check whether the declarator has the expected form. We walk 1565f85e193739c953358c865005855253af4f68a497John McCall // from the inside out in order to make the block logic work. 1566f85e193739c953358c865005855253af4f68a497John McCall unsigned outermostPointerIndex = 0; 1567f85e193739c953358c865005855253af4f68a497John McCall bool isBlockPointer = false; 1568f85e193739c953358c865005855253af4f68a497John McCall unsigned numPointers = 0; 1569f85e193739c953358c865005855253af4f68a497John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 1570f85e193739c953358c865005855253af4f68a497John McCall unsigned chunkIndex = i; 1571f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(chunkIndex); 1572f85e193739c953358c865005855253af4f68a497John McCall switch (chunk.Kind) { 1573f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Paren: 1574f85e193739c953358c865005855253af4f68a497John McCall // Ignore parens. 1575f85e193739c953358c865005855253af4f68a497John McCall break; 1576f85e193739c953358c865005855253af4f68a497John McCall 1577f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Reference: 1578f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Pointer: 1579f85e193739c953358c865005855253af4f68a497John McCall // Count the number of pointers. Treat references 1580f85e193739c953358c865005855253af4f68a497John McCall // interchangeably as pointers; if they're mis-ordered, normal 1581f85e193739c953358c865005855253af4f68a497John McCall // type building will discover that. 1582f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1583f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1584f85e193739c953358c865005855253af4f68a497John McCall break; 1585f85e193739c953358c865005855253af4f68a497John McCall 1586f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::BlockPointer: 1587f85e193739c953358c865005855253af4f68a497John McCall // If we have a pointer to block pointer, that's an acceptable 1588f85e193739c953358c865005855253af4f68a497John McCall // indirect reference; anything else is not an application of 1589f85e193739c953358c865005855253af4f68a497John McCall // the rules. 1590f85e193739c953358c865005855253af4f68a497John McCall if (numPointers != 1) return; 1591f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1592f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1593f85e193739c953358c865005855253af4f68a497John McCall isBlockPointer = true; 1594f85e193739c953358c865005855253af4f68a497John McCall 1595f85e193739c953358c865005855253af4f68a497John McCall // We don't care about pointer structure in return values here. 1596f85e193739c953358c865005855253af4f68a497John McCall goto done; 1597f85e193739c953358c865005855253af4f68a497John McCall 1598f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Array: // suppress if written (id[])? 1599f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Function: 1600f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::MemberPointer: 1601f85e193739c953358c865005855253af4f68a497John McCall return; 1602f85e193739c953358c865005855253af4f68a497John McCall } 1603f85e193739c953358c865005855253af4f68a497John McCall } 1604f85e193739c953358c865005855253af4f68a497John McCall done: 1605f85e193739c953358c865005855253af4f68a497John McCall 1606f85e193739c953358c865005855253af4f68a497John McCall // If we have *one* pointer, then we want to throw the qualifier on 1607f85e193739c953358c865005855253af4f68a497John McCall // the declaration-specifiers, which means that it needs to be a 1608f85e193739c953358c865005855253af4f68a497John McCall // retainable object type. 1609f85e193739c953358c865005855253af4f68a497John McCall if (numPointers == 1) { 1610f85e193739c953358c865005855253af4f68a497John McCall // If it's not a retainable object type, the rule doesn't apply. 1611f85e193739c953358c865005855253af4f68a497John McCall if (!declSpecType->isObjCRetainableType()) return; 1612f85e193739c953358c865005855253af4f68a497John McCall 1613f85e193739c953358c865005855253af4f68a497John McCall // If it already has lifetime, don't do anything. 1614f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType.getObjCLifetime()) return; 1615f85e193739c953358c865005855253af4f68a497John McCall 1616f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, modify the type in-place. 1617f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 1618f85e193739c953358c865005855253af4f68a497John McCall 1619f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType->isObjCARCImplicitlyUnretainedType()) 1620f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_ExplicitNone); 1621f85e193739c953358c865005855253af4f68a497John McCall else 1622f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_Autoreleasing); 1623f85e193739c953358c865005855253af4f68a497John McCall declSpecType = S.Context.getQualifiedType(declSpecType, qs); 1624f85e193739c953358c865005855253af4f68a497John McCall 1625f85e193739c953358c865005855253af4f68a497John McCall // If we have *two* pointers, then we want to throw the qualifier on 1626f85e193739c953358c865005855253af4f68a497John McCall // the outermost pointer. 1627f85e193739c953358c865005855253af4f68a497John McCall } else if (numPointers == 2) { 1628f85e193739c953358c865005855253af4f68a497John McCall // If we don't have a block pointer, we need to check whether the 1629f85e193739c953358c865005855253af4f68a497John McCall // declaration-specifiers gave us something that will turn into a 1630f85e193739c953358c865005855253af4f68a497John McCall // retainable object pointer after we slap the first pointer on it. 1631f85e193739c953358c865005855253af4f68a497John McCall if (!isBlockPointer && !declSpecType->isObjCObjectType()) 1632f85e193739c953358c865005855253af4f68a497John McCall return; 1633f85e193739c953358c865005855253af4f68a497John McCall 1634f85e193739c953358c865005855253af4f68a497John McCall // Look for an explicit lifetime attribute there. 1635f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(outermostPointerIndex); 16361c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis if (chunk.Kind != DeclaratorChunk::Pointer && 16371c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis chunk.Kind != DeclaratorChunk::BlockPointer) 16381c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis return; 1639f85e193739c953358c865005855253af4f68a497John McCall for (const AttributeList *attr = chunk.getAttrs(); attr; 1640f85e193739c953358c865005855253af4f68a497John McCall attr = attr->getNext()) 1641b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis if (attr->getKind() == AttributeList::AT_objc_ownership) 1642f85e193739c953358c865005855253af4f68a497John McCall return; 1643f85e193739c953358c865005855253af4f68a497John McCall 1644a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, Qualifiers::OCL_Autoreleasing, 1645a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis outermostPointerIndex); 1646f85e193739c953358c865005855253af4f68a497John McCall 1647f85e193739c953358c865005855253af4f68a497John McCall // Any other number of pointers/references does not trigger the rule. 1648f85e193739c953358c865005855253af4f68a497John McCall } else return; 1649f85e193739c953358c865005855253af4f68a497John McCall 1650f85e193739c953358c865005855253af4f68a497John McCall // TODO: mark whether we did this inference? 1651f85e193739c953358c865005855253af4f68a497John McCall} 1652f85e193739c953358c865005855253af4f68a497John McCall 1653d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruthstatic void DiagnoseIgnoredQualifiers(unsigned Quals, 1654d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation ConstQualLoc, 1655d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation VolatileQualLoc, 1656d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation RestrictQualLoc, 1657d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth Sema& S) { 1658d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth std::string QualStr; 1659d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth unsigned NumQuals = 0; 1660d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation Loc; 1661d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1662d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint ConstFixIt; 1663d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint VolatileFixIt; 1664d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint RestrictFixIt; 1665d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1666a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg const SourceManager &SM = S.getSourceManager(); 1667a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg 1668d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // FIXME: The locations here are set kind of arbitrarily. It'd be nicer to 1669d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // find a range and grow it to encompass all the qualifiers, regardless of 1670d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // the order in which they textually appear. 1671d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Const) { 1672d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ConstFixIt = FixItHint::CreateRemoval(ConstQualLoc); 1673d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth QualStr = "const"; 1674a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg ++NumQuals; 1675a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(ConstQualLoc, Loc)) 1676a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = ConstQualLoc; 1677d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1678d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Volatile) { 1679d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth VolatileFixIt = FixItHint::CreateRemoval(VolatileQualLoc); 1680a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg QualStr += (NumQuals == 0 ? "volatile" : " volatile"); 1681d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ++NumQuals; 1682a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(VolatileQualLoc, Loc)) 1683a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = VolatileQualLoc; 1684d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1685d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Restrict) { 1686d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth RestrictFixIt = FixItHint::CreateRemoval(RestrictQualLoc); 1687a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg QualStr += (NumQuals == 0 ? "restrict" : " restrict"); 1688d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ++NumQuals; 1689a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(RestrictQualLoc, Loc)) 1690a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = RestrictQualLoc; 1691d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1692d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1693d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(NumQuals > 0 && "No known qualifiers?"); 1694d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1695d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth S.Diag(Loc, diag::warn_qual_return_type) 1696a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg << QualStr << NumQuals << ConstFixIt << VolatileFixIt << RestrictFixIt; 1697d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth} 1698d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 16998cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType GetDeclSpecTypeForDeclarator(TypeProcessingState &state, 17008cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *&ReturnTypeInfo) { 17018cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &SemaRef = state.getSema(); 17028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 1703930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 17048cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ReturnTypeInfo = 0; 1705711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 17068cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The TagDecl owned by the DeclSpec. 17078cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TagDecl *OwnedTagDecl = 0; 17088999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl 17093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 171098a5403ecf1d2b60ae8cbf43e54194bd762cacaaFariborz Jahanian case UnqualifiedId::IK_ImplicitSelfParam: 17113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 17128999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl case UnqualifiedId::IK_Identifier: 17130486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 17143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 17158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = ConvertDeclSpecToType(state); 17165db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 1717591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 1718d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 171915987970eeaa1842c29ec8797affd1c1dea05585Abramo Bagnara // Owned declaration is embedded in declarator. 1720d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl->setEmbeddedInDeclarator(true); 1721591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 1722930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 1723930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 17243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 17250efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 17263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 1727930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 172848026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // "void" instead. 17298cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.VoidTy; 1730930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 173148026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 173248026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 173348026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 173448026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 17358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.GetTypeFromParser(D.getName().ConversionFunctionId, 17368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis &ReturnTypeInfo); 173748026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 1738930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 1739dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor 1740711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (D.getAttributes()) 1741711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeTypeAttrsFromDeclarator(state, T); 1742711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1743e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C++0x [dcl.spec.auto]p5: reject 'auto' if it is not in an allowed context. 17448110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // In C++0x, a function declarator using 'auto' must have a trailing return 17458110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // type (this is checked later) and we can skip this. In other languages 17468110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // using auto, we need to check regardless. 174734b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 17488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis (!SemaRef.getLangOptions().CPlusPlus0x || !D.isFunctionDeclarator())) { 1749baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 17501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1751baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 1752baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 1753b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("K&R type lists aren't allowed in C++"); 1754baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1755c05a94b7accd4035bf5d5897c434c445b22da855John McCall case Declarator::ObjCPrototypeContext: 1756baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 1757baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 0; // Function prototype 1758baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1759baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 17607a614d8380297fcd2bc23986241905d97222948cRichard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static) 17617a614d8380297fcd2bc23986241905d97222948cRichard Smith break; 17628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (cast<TagDecl>(SemaRef.CurContext)->getTagKind()) { 1763eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27David Blaikie case TTK_Enum: llvm_unreachable("unhandled tag kind"); 1764465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Struct: Error = 1; /* Struct member */ break; 1765465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Union: Error = 2; /* Union member */ break; 1766465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Class: Error = 3; /* Class member */ break; 17671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1768baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1769baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 177017b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 1771baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 4; // Exception declaration 1772baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1773baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 1774baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 5; // Template parameter 1775baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1776baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 177734b41d939a1328f484511c6002ba2456db879a29Richard Smith Error = 6; // Block literal 177834b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 177934b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TemplateTypeArgContext: 178034b41d939a1328f484511c6002ba2456db879a29Richard Smith Error = 7; // Template type argument 178134b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 1782162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 17833e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 1784162e1c1b487352434552147967c3dd296ebee2f7Richard Smith Error = 9; // Type alias 1785162e1c1b487352434552147967c3dd296ebee2f7Richard Smith break; 178634b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TypeNameContext: 17870b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis Error = 11; // Generic 1788baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1789baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 1790baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 1791baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 1792baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 17930b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 1794baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1795baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1796baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 1797ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 1798ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith Error = 8; 1799ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith 18008110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // In Objective-C it is an error to use 'auto' on a function declarator. 18018110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith if (D.isFunctionDeclarator()) 1802162e1c1b487352434552147967c3dd296ebee2f7Richard Smith Error = 10; 18038110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith 1804e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C++0x [dcl.spec.auto]p2: 'auto' is always fine if the declarator 1805e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // contains a trailing return type. That is only legal at the outermost 1806e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // level. Check all declarator chunks (outermost first) anyway, to give 1807e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // better diagnostics. 18088cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (SemaRef.getLangOptions().CPlusPlus0x && Error != -1) { 1809e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 1810e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned chunkIndex = e - i - 1; 1811e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith state.setCurrentChunkIndex(chunkIndex); 1812e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 1813e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (DeclType.Kind == DeclaratorChunk::Function) { 1814e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 1815e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (FTI.TrailingReturnType) { 1816e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith Error = -1; 1817e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith break; 1818e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1819e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1820e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1821e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1822e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 1823baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 18248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 18258cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_auto_not_allowed) 1826baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson << Error; 18278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.IntTy; 1828baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 1829baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1830baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 18318cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 18328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (SemaRef.getLangOptions().CPlusPlus && 18338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis OwnedTagDecl && OwnedTagDecl->isDefinition()) { 18348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Check the contexts where C++ forbids the declaration of a new class 18358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // or enumeration in a type-specifier-seq. 18368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (D.getContext()) { 18378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::FileContext: 18388cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::MemberContext: 18398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockContext: 18408cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ForContext: 18418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockLiteralContext: 18428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++0x [dcl.type]p3: 18438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // A type-specifier-seq shall not define a class or enumeration unless 18448cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // it appears in the type-id of an alias-declaration (7.1.3) that is not 18458cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // the declaration of a template-declaration. 18468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasDeclContext: 18478cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 18488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasTemplateContext: 18498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 18508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_alias_template) 18518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 18528cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 18538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TypeNameContext: 18548cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateParamContext: 18558cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXNewContext: 18568cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXCatchContext: 18578cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ObjCCatchContext: 18588cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateTypeArgContext: 18598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 18608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_type_specifier) 18618cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 18628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 18638cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::PrototypeContext: 18648cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ObjCPrototypeContext: 18658cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::KNRTypeListContext: 18668cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ [dcl.fct]p6: 18678cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Types shall not be defined in return or parameter types. 18688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 18698cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_param_type) 18708cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 18718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 18728cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ConditionContext: 18738cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ 6.4p2: 18748cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The type-specifier-seq shall not contain typedef and shall not declare 18758cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // a new class or enumeration. 18768cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 18778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_condition); 18788cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 18798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 18808cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 18818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 18828cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return T; 18838cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 18848cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 18858cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic TypeSourceInfo *GetFullTypeForDeclarator(TypeProcessingState &state, 18868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType declSpecType, 18878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *TInfo) { 18888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 18898cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = declSpecType; 18908cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 18918cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 18928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ASTContext &Context = S.Context; 18938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis const LangOptions &LangOpts = S.getLangOptions(); 18948cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 18958cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis bool ImplicitlyNoexcept = false; 18968cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (D.getName().getKind() == UnqualifiedId::IK_OperatorFunctionId && 18978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis LangOpts.CPlusPlus0x) { 18988cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis OverloadedOperatorKind OO = D.getName().OperatorFunctionId.Operator; 18998cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis /// In C++0x, deallocation functions (normal and array operator delete) 19008cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis /// are implicitly noexcept. 19018cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (OO == OO_Delete || OO == OO_Array_Delete) 19028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ImplicitlyNoexcept = true; 19038cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 190434b41d939a1328f484511c6002ba2456db879a29Richard Smith 1905cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 1906cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 1907cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 1908cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 19091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1910162e1c1b487352434552147967c3dd296ebee2f7Richard Smith // Does this declaration declare a typedef-name? 1911162e1c1b487352434552147967c3dd296ebee2f7Richard Smith bool IsTypedefName = 1912162e1c1b487352434552147967c3dd296ebee2f7Richard Smith D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef || 19133e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasDeclContext || 19143e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext; 1915162e1c1b487352434552147967c3dd296ebee2f7Richard Smith 191698eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 191798eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 191898eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 19198ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 1920711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex = e - i - 1; 1921711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(chunkIndex); 1922711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 19235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 1924b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie default: llvm_unreachable("Unknown decltype!"); 1925075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara case DeclaratorChunk::Paren: 19268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildParenType(T); 1927075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara break; 19285618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 19299af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 19309af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 19318cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_blocks_disable); 19321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildBlockPointerType(T, D.getIdentifierLoc(), Name); 19342865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Cls.TypeQuals) 19358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); 19365618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 19375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 19386a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 19396a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 19408cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 19418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 19426a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 19436a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 19446a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 19458cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjC1 && T->getAs<ObjCObjectType>()) { 1946c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = Context.getObjCObjectPointerType(T); 19472865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 19488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 194914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 195014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 19518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildPointerType(T, DeclType.Loc, Name); 19522865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 19538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 1954711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 19555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 19560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 19576a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 19586a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 19598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 19608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 19616a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 19626a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 19636a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 19648cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); 19652865474261a608c7873b87ba4af110d17907896dJohn McCall 19662865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Quals; 19672865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ref.HasRestrict) 19688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); 19695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 19700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 19715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 19726a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 19736a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 19748cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 19758cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 19766a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 19776a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 19786a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 1979fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 198094f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 19815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 19825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 19835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 19845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 19855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 19865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 19875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 1988c05a94b7accd4035bf5d5897c434c445b22da855John McCall if (ASM == ArrayType::Star && !D.isPrototypeContext()) { 1989f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 1990f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 1991f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 19928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 1993f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 1994f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 1995f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 19968cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildArrayType(T, ASM, ArraySize, 19978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Qualifiers::fromCVRMask(ATI.TypeQuals), 19988cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 19995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 20005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2001f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 20025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 20035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 20045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 20055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 20063cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 200734b41d939a1328f484511c6002ba2456db879a29Richard Smith // Check for auto functions and trailing return type and adjust the 200834b41d939a1328f484511c6002ba2456db879a29Richard Smith // return type accordingly. 200934b41d939a1328f484511c6002ba2456db879a29Richard Smith if (!D.isInvalidType()) { 201034b41d939a1328f484511c6002ba2456db879a29Richard Smith // trailing-return-type is only required if we're declaring a function, 201134b41d939a1328f484511c6002ba2456db879a29Richard Smith // and not, for instance, a pointer to a function. 201234b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 201334b41d939a1328f484511c6002ba2456db879a29Richard Smith !FTI.TrailingReturnType && chunkIndex == 0) { 20148cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 201534b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_auto_missing_trailing_return); 201634b41d939a1328f484511c6002ba2456db879a29Richard Smith T = Context.IntTy; 201734b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 201834b41d939a1328f484511c6002ba2456db879a29Richard Smith } else if (FTI.TrailingReturnType) { 2019e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // T must be exactly 'auto' at this point. See CWG issue 681. 2020e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (isa<ParenType>(T)) { 20218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 2022e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diag::err_trailing_return_in_parens) 2023e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith << T << D.getDeclSpec().getSourceRange(); 2024e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2025e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } else if (T.hasQualifiers() || !isa<AutoType>(T)) { 20268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 202734b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_trailing_return_without_auto) 202834b41d939a1328f484511c6002ba2456db879a29Richard Smith << T << D.getDeclSpec().getSourceRange(); 202934b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 203034b41d939a1328f484511c6002ba2456db879a29Richard Smith } 203134b41d939a1328f484511c6002ba2456db879a29Richard Smith 20328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.GetTypeFromParser( 203334b41d939a1328f484511c6002ba2456db879a29Richard Smith ParsedType::getFromOpaquePtr(FTI.TrailingReturnType), 20348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis &TInfo); 203534b41d939a1328f484511c6002ba2456db879a29Richard Smith } 203634b41d939a1328f484511c6002ba2456db879a29Richard Smith } 203734b41d939a1328f484511c6002ba2456db879a29Richard Smith 2038e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C99 6.7.5.3p1: The return type may not be a function or array type. 2039e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // For conversion functions, we'll diagnose this particular error later. 2040e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if ((T->isArrayType() || T->isFunctionType()) && 2041e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 2042e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned diagID = diag::err_func_returning_array_function; 2043e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // Last processing chunk in block context means this function chunk 2044e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // represents the block. 2045e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (chunkIndex == 0 && 2046e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.getContext() == Declarator::BlockLiteralContext) 2047e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diagID = diag::err_block_returning_array_function; 20488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diagID) << T->isFunctionType() << T; 2049e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith T = Context.IntTy; 2050e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2051e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2052e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 20535291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // cv-qualifiers on return types are pointless except when the type is a 20545291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // class type in C++. 2055fff951371dfc309160a99d423e43a7841aeb35aaDouglas Gregor if (isa<PointerType>(T) && T.getLocalCVRQualifiers() && 20561e15394853bfae25112d9cc6b445504905e1f34aRafael Espindola (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId) && 20578cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis (!LangOpts.CPlusPlus || !T->isDependentType())) { 2058d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(chunkIndex + 1 < e && "No DeclaratorChunk for the return type?"); 2059d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DeclaratorChunk ReturnTypeChunk = D.getTypeObject(chunkIndex + 1); 2060d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(ReturnTypeChunk.Kind == DeclaratorChunk::Pointer); 2061d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2062d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DeclaratorChunk::PointerTypeInfo &PTI = ReturnTypeChunk.Ptr; 2063d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2064d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DiagnoseIgnoredQualifiers(PTI.TypeQuals, 2065d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.ConstQualLoc), 2066d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.VolatileQualLoc), 2067d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.RestrictQualLoc), 20688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S); 2069d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2070d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } else if (T.getCVRQualifiers() && D.getDeclSpec().getTypeQualifiers() && 20718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis (!LangOpts.CPlusPlus || 20725291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor (!T->isDependentType() && !T->isRecordType()))) { 2073d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2074d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DiagnoseIgnoredQualifiers(D.getDeclSpec().getTypeQualifiers(), 2075d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getConstSpecLoc(), 2076d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getVolatileSpecLoc(), 2077d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getRestrictSpecLoc(), 20788cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S); 20795291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor } 2080d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 20818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 2082402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 2083402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 2084b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl *Tag = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 2085402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (Tag->isDefinition()) 20868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 2087402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 2088402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 2089402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 20903cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 20913cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 2092162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (IsTypedefName && FTI.getExceptionSpecType()) 20938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getExceptionSpecLoc(), diag::err_exception_spec_in_typedef) 20943e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith << (D.getContext() == Declarator::AliasDeclContext || 20953e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext); 20963cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 20978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && !FTI.isVariadic && !LangOpts.CPlusPlus) { 20982865474261a608c7873b87ba4af110d17907896dJohn McCall // Simple void foo(), where the incoming T is the result type. 20992865474261a608c7873b87ba4af110d17907896dJohn McCall T = Context.getFunctionNoProtoType(T); 21002865474261a608c7873b87ba4af110d17907896dJohn McCall } else { 21012865474261a608c7873b87ba4af110d17907896dJohn McCall // We allow a zero-parameter variadic function in C if the 21022865474261a608c7873b87ba4af110d17907896dJohn McCall // function is marked with the "overloadable" attribute. Scan 21032865474261a608c7873b87ba4af110d17907896dJohn McCall // for this attribute now. 21048cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && FTI.isVariadic && !LangOpts.CPlusPlus) { 2105965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 2106965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 2107965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 2108965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (Attrs->getKind() == AttributeList::AT_overloadable) { 2109965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 2110965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 2111965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2112965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2113965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 2114965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 21158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 2116c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 21172865474261a608c7873b87ba4af110d17907896dJohn McCall 21182865474261a608c7873b87ba4af110d17907896dJohn McCall if (FTI.NumArgs && FTI.ArgInfo[0].Param == 0) { 2119788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function 2120788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // definition. 21218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 21222865474261a608c7873b87ba4af110d17907896dJohn McCall D.setInvalidType(true); 21232865474261a608c7873b87ba4af110d17907896dJohn McCall break; 21242865474261a608c7873b87ba4af110d17907896dJohn McCall } 21252865474261a608c7873b87ba4af110d17907896dJohn McCall 2126e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 2127e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = FTI.isVariadic; 2128e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = FTI.TypeQuals; 2129c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = !FTI.hasRefQualifier()? RQ_None 2130c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : FTI.RefQualifierIsLValueRef? RQ_LValue 2131c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : RQ_RValue; 2132c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 21335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 21345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 21355f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 21362865474261a608c7873b87ba4af110d17907896dJohn McCall ArgTys.reserve(FTI.NumArgs); 21371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21385f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<bool, 16> ConsumedArguments; 2139f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.reserve(FTI.NumArgs); 2140f85e193739c953358c865005855253af4f68a497John McCall bool HasAnyConsumedArguments = false; 2141f85e193739c953358c865005855253af4f68a497John McCall 21425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 2143d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 21448123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner QualType ArgTy = Param->getType(); 214578c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 21462dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 21472dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Adjust the parameter type. 214879e6bd379773447a74cc3e579d9081e4c5cb6d63Douglas Gregor assert((ArgTy == Context.getAdjustedParameterType(ArgTy)) && 214979e6bd379773447a74cc3e579d9081e4c5cb6d63Douglas Gregor "Unadjusted type?"); 21502dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 21515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 21525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 215372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 21542dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 21555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 21565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 21575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 21585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 21598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_only_param); 21602ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 21618123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 21622ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 21632ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 21648cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[i].IdentLoc, 21654565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 21662ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 21678123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 21682ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 21692ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 21700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 21718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_param_qualified); 21721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21732ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 21742ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 21752ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 2176eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 2177eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 2178a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 2179eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2180183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 2181eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall if (BTy->getKind() == BuiltinType::Float) { 2182eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 2183eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2184eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall } 2185eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 21865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 218756a965c0f77c9e6bffd65cc8f8796442a8527381Fariborz Jahanian 21888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjCAutoRefCount) { 2189f85e193739c953358c865005855253af4f68a497John McCall bool Consumed = Param->hasAttr<NSConsumedAttr>(); 2190f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.push_back(Consumed); 2191f85e193739c953358c865005855253af4f68a497John McCall HasAnyConsumedArguments |= Consumed; 2192f85e193739c953358c865005855253af4f68a497John McCall } 2193f85e193739c953358c865005855253af4f68a497John McCall 219454e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 21955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2196465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2197f85e193739c953358c865005855253af4f68a497John McCall if (HasAnyConsumedArguments) 2198f85e193739c953358c865005855253af4f68a497John McCall EPI.ConsumedArguments = ConsumedArguments.data(); 2199f85e193739c953358c865005855253af4f68a497John McCall 22005f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 4> Exceptions; 22018b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl EPI.ExceptionSpecType = FTI.getExceptionSpecType(); 22028b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl if (FTI.getExceptionSpecType() == EST_Dynamic) { 2203e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall Exceptions.reserve(FTI.NumExceptions); 2204e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall for (unsigned ei = 0, ee = FTI.NumExceptions; ei != ee; ++ei) { 2205e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // FIXME: Preserve type source info. 22068cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType ET = S.GetTypeFromParser(FTI.Exceptions[ei].Ty); 2207e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // Check that the type is valid for an exception spec, and 2208e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // drop it if not. 22098cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!S.CheckSpecifiedExceptionType(ET, FTI.Exceptions[ei].Range)) 2210e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall Exceptions.push_back(ET); 2211e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 2212373920bd733b1d28fe7bf209945a62eb9248d948John McCall EPI.NumExceptions = Exceptions.size(); 2213e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Exceptions = Exceptions.data(); 22148b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl } else if (FTI.getExceptionSpecType() == EST_ComputedNoexcept) { 221560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl // If an error occurred, there's no expression here. 221660618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (Expr *NoexceptExpr = FTI.NoexceptExpr) { 221760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl assert((NoexceptExpr->isTypeDependent() || 221860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl NoexceptExpr->getType()->getCanonicalTypeUnqualified() == 221960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl Context.BoolTy) && 222060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl "Parser should have made sure that the expression is boolean"); 222160618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl SourceLocation ErrLoc; 222260618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl llvm::APSInt Dummy; 222360618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl if (!NoexceptExpr->isValueDependent() && 222460618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl !NoexceptExpr->isIntegerConstantExpr(Dummy, Context, &ErrLoc, 222560618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl /*evaluated*/false)) 22268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(ErrLoc, diag::err_noexcept_needs_constant_expression) 222760618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl << NoexceptExpr->getSourceRange(); 222860618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl else 222960618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl EPI.NoexceptExpr = NoexceptExpr; 223060618fa7f88d5162bb5b40988b6b38d4d75d6fc6Sebastian Redl } 22318999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl } else if (FTI.getExceptionSpecType() == EST_None && 22328999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl ImplicitlyNoexcept && chunkIndex == 0) { 22338999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl // Only the outermost chunk is marked noexcept, of course. 22348999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl EPI.ExceptionSpecType = EST_BasicNoexcept; 2235ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 2236465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2237e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall T = Context.getFunctionType(T, ArgTys.data(), ArgTys.size(), EPI); 22385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 223904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 22405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 22415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2242f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 2243f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 22447bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara CXXScopeSpec &SS = DeclType.Mem.Scope(); 2245f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 22467bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (SS.isInvalid()) { 2247edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 2248edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 22498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } else if (S.isDependentScopeSpecifier(SS) || 22508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis dyn_cast_or_null<CXXRecordDecl>(S.computeDeclContext(SS))) { 22511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 22527bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara = static_cast<NestedNameSpecifier*>(SS.getScopeRep()); 225387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 225487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 225587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 22567bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 22574a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 225887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 225987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 226087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 226114aba76042e041b2c5e439bf4ae353a0a3c7fd73Douglas Gregor case NestedNameSpecifier::NamespaceAlias: 226287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 22639f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 226487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 22657bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara 226687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 226787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 226887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 226991ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Note: if the NNS has a prefix and ClsType is a nondependent 227091ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // TemplateSpecializationType, then the NNS prefix is NOT included 227191ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // in ClsType; hence we wrap ClsType into an ElaboratedType. 227291ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // NOTE: in particular, no wrap occurs if ClsType already is an 227391ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Elaborated, DependentName, or DependentTemplateSpecialization. 227491ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara if (NNSPrefix && isa<TemplateSpecializationType>(NNS->getAsType())) 22757bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getElaboratedType(ETK_None, NNSPrefix, ClsType); 227687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 227787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 2278f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 22798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Mem.Scope().getBeginLoc(), 2280949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 2281949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 2282949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 2283f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 2284f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2285f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2286949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 22878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildMemberPointerType(T, ClsType, DeclType.Loc, D.getIdentifier()); 2288949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 2289f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 2290949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 22912865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (DeclType.Mem.TypeQuals) { 22928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); 2293f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2294f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 2295f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2296f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2297cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 2298cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 2299cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 2300cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 2301cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 2302c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 2303711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = const_cast<AttributeList*>(DeclType.getAttrs())) 2304711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 23055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2306971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 23078cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && T->isFunctionType()) { 2308183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 2309778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 2310971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 2311708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // C++ 8.3.5p4: 2312708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // A cv-qualifier-seq shall only be part of the function type 2313708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // for a nonstatic member function, the function type to which a pointer 2314708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // to member refers, or the top-level function type of a function typedef 2315708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // declaration. 2316683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // 2317683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Core issue 547 also allows cv-qualifiers on function types that are 2318683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // top-level template type arguments. 2319613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall bool FreeFunction; 2320613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall if (!D.getCXXScopeSpec().isSet()) { 2321613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (D.getContext() != Declarator::MemberContext || 2322613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall D.getDeclSpec().isFriendSpecified()); 2323613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } else { 23248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis DeclContext *DC = S.computeDeclContext(D.getCXXScopeSpec()); 2325613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (DC && !DC->isRecord()); 2326613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } 2327613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall 2328c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // C++0x [dcl.fct]p6: 2329c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // A ref-qualifier shall only be part of the function type for a 2330c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // non-static member function, the function type to which a pointer to 2331c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // member refers, or the top-level function type of a function typedef 2332c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // declaration. 2333c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor if ((FnTy->getTypeQuals() != 0 || FnTy->getRefQualifier()) && 2334683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor !(D.getContext() == Declarator::TemplateTypeArgContext && 2335162e1c1b487352434552147967c3dd296ebee2f7Richard Smith !D.isFunctionDeclarator()) && !IsTypedefName && 2336c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl (FreeFunction || 2337971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static)) { 2338683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (D.getContext() == Declarator::TemplateTypeArgContext) { 2339683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Accept qualified function types as template type arguments as a GNU 2340683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // extension. This is also the subject of C++ core issue 547. 2341683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor std::string Quals; 2342683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (FnTy->getTypeQuals() != 0) 2343683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals = Qualifiers::fromCVRMask(FnTy->getTypeQuals()).getAsString(); 2344683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 2345683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor switch (FnTy->getRefQualifier()) { 2346683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case RQ_None: 2347683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 2348683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 2349683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case RQ_LValue: 2350683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (!Quals.empty()) 2351683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += ' '; 2352683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += '&'; 2353683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 2354c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2355683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case RQ_RValue: 2356683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (!Quals.empty()) 2357683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += ' '; 2358683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += "&&"; 2359683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 2360683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2361683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 23628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), 2363683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor diag::ext_qualified_function_type_template_arg) 2364683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << Quals; 2365683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } else { 2366683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (FnTy->getTypeQuals() != 0) { 2367683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (D.isFunctionDeclarator()) 23688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), 2369683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor diag::err_invalid_qualified_function_type); 2370683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor else 23718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), 2372683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor diag::err_invalid_qualified_typedef_function_type_use) 2373683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << FreeFunction; 2374683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2375683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 2376683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (FnTy->getRefQualifier()) { 2377683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (D.isFunctionDeclarator()) { 2378683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor SourceLocation Loc = D.getIdentifierLoc(); 2379683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor for (unsigned I = 0, N = D.getNumTypeObjects(); I != N; ++I) { 2380683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor const DeclaratorChunk &Chunk = D.getTypeObject(N-I-1); 2381683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (Chunk.Kind == DeclaratorChunk::Function && 2382683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Chunk.Fun.hasRefQualifier()) { 2383683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Loc = Chunk.Fun.getRefQualifierLoc(); 2384683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 2385683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2386944aa60777e6ea1015c9423107f7925f6d91f4a0Douglas Gregor } 2387944aa60777e6ea1015c9423107f7925f6d91f4a0Douglas Gregor 23888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(Loc, diag::err_invalid_ref_qualifier_function_type) 2389683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << (FnTy->getRefQualifier() == RQ_LValue) 2390683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << FixItHint::CreateRemoval(Loc); 2391683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } else { 23928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), 2393683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor diag::err_invalid_ref_qualifier_typedef_function_type_use) 2394683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << FreeFunction 2395683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << (FnTy->getRefQualifier() == RQ_LValue); 2396683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2397c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor } 2398c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2399683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Strip the cv-qualifiers and ref-qualifiers from the type. 2400683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 2401683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor EPI.TypeQuals = 0; 2402683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor EPI.RefQualifier = RQ_None; 2403c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2404683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor T = Context.getFunctionType(FnTy->getResultType(), 2405683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor FnTy->arg_type_begin(), 2406683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor FnTy->getNumArgs(), EPI); 2407683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2408971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 2409971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 24101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2411711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any undistributed attributes from the declarator. 2412711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) 2413711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = D.getAttributes()) 2414711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 2415711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2416711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnose any ignored type attributes. 2417711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) state.diagnoseIgnoredTypeAttrs(T); 2418711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2419148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // C++0x [dcl.constexpr]p9: 2420148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // A constexpr specifier used in an object declaration declares the object 2421148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // as const. 2422148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne if (D.getDeclSpec().isConstexprSpecified() && T->isObjectType()) { 2423737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl T.addConst(); 2424737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl } 2425737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl 2426a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // If there was an ellipsis in the declarator, the declaration declares a 2427a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack whose type may be a pack expansion type. 2428a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (D.hasEllipsis() && !T.isNull()) { 2429a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 2430a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // A declarator-id or abstract-declarator containing an ellipsis shall 2431a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // only be used in a parameter-declaration. Such a parameter-declaration 2432a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // is a parameter pack (14.5.3). [...] 2433a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor switch (D.getContext()) { 2434a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::PrototypeContext: 2435a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 2436a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // [...] When it is part of a parameter-declaration-clause, the 2437a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack is a function parameter pack (14.5.3). The type T 2438a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // of the declarator-id of the function parameter pack shall contain 2439a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // a template parameter pack; each template parameter pack in T is 2440a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // expanded by the function parameter pack. 2441a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 2442a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // We represent function parameter packs as function parameters whose 2443a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // type is a pack expansion. 2444a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (!T->containsUnexpandedParameterPack()) { 24458cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getEllipsisLoc(), 2446a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor diag::err_function_parameter_pack_without_parameter_packs) 2447a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor << T << D.getSourceRange(); 2448a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 2449a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } else { 2450cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 2451a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2452a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2453a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 2454a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TemplateParamContext: 2455a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [temp.param]p15: 2456a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // If a template-parameter is a [...] is a parameter-declaration that 2457a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // declares a parameter pack (8.3.5), then the template-parameter is a 2458a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // template parameter pack (14.5.3). 2459a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 2460a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Note: core issue 778 clarifies that, if there are any unexpanded 2461a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter packs in the type of the non-type template parameter, then 2462a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // it expands those parameter packs. 2463a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (T->containsUnexpandedParameterPack()) 2464cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 24658cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis else if (!LangOpts.CPlusPlus0x) 24668cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getEllipsisLoc(), diag::ext_variadic_templates); 2467a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2468a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 2469a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::FileContext: 2470a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::KNRTypeListContext: 2471c05a94b7accd4035bf5d5897c434c445b22da855John McCall case Declarator::ObjCPrototypeContext: // FIXME: special diagnostic here? 2472a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TypeNameContext: 24730b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 2474162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 24753e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 2476a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::MemberContext: 2477a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockContext: 2478a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ForContext: 2479a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ConditionContext: 2480a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::CXXCatchContext: 248117b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 2482a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockLiteralContext: 2483683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case Declarator::TemplateTypeArgContext: 2484a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // FIXME: We may want to allow parameter packs in block-literal contexts 2485a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // in the future. 24868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getEllipsisLoc(), diag::err_ellipsis_in_declarator_not_parameter); 2487a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 2488a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2489a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2490a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2491e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 2492bf1a028246d884a540aeafa38e89be59a269b072John McCall if (T.isNull()) 2493bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 2494bf1a028246d884a540aeafa38e89be59a269b072John McCall else if (D.isInvalidType()) 2495bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getTrivialTypeSourceInfo(T); 2496db7abf78dedc2ef6ccb42b3dac6ab330fe2ea469Argyrios Kyrtzidis 24978cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return S.GetTypeSourceInfoForDeclarator(D, T, TInfo); 24988cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 24998cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 25008cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// GetTypeForDeclarator - Convert the type for the specified 25018cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// declarator to Type instances. 25028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// 25038cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// The result of this call will never be null, but the associated 25048cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// type may be a null type if there's an unrecoverable error. 25058cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S) { 25068cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Determine the type of the declarator. Not all forms of declarator 25078cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // have a type. 25088cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 25098cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeProcessingState state(*this, D); 25108cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 25118cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 25128cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 25138cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (T.isNull()) 25148cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 25158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 25168cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (D.isPrototypeContext() && getLangOptions().ObjCAutoRefCount) 25178cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis inferARCWriteback(state, T); 2518db7abf78dedc2ef6ccb42b3dac6ab330fe2ea469Argyrios Kyrtzidis 25198cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return GetFullTypeForDeclarator(state, T, ReturnTypeInfo); 25205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 25215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 252231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclSpec(Sema &S, 252331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 252431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 252531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType() && 252631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy.getObjCLifetime() == Qualifiers::OCL_None) { 252731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers qs; 252831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis qs.addObjCLifetime(ownership); 252931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy = S.Context.getQualifiedType(declSpecTy, qs); 253031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 253131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 253231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 253331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 253431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 253531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis unsigned chunkIndex) { 253631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 253731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 253831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 253931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Look for an explicit lifetime attribute. 254031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(chunkIndex); 254131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (const AttributeList *attr = chunk.getAttrs(); attr; 254231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis attr = attr->getNext()) 254331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (attr->getKind() == AttributeList::AT_objc_ownership) 254431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 254531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 254631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis const char *attrStr = 0; 254731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (ownership) { 254831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_None: llvm_unreachable("no ownership!"); break; 254931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: attrStr = "none"; break; 255031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Strong: attrStr = "strong"; break; 255131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Weak: attrStr = "weak"; break; 255231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: attrStr = "autoreleasing"; break; 255331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 255431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 255531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // If there wasn't one, add one (with an invalid source location 255631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // so that we don't make an AttributedType for it). 255731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis AttributeList *attr = D.getAttributePool() 255831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis .create(&S.Context.Idents.get("objc_ownership"), SourceLocation(), 255931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*scope*/ 0, SourceLocation(), 256031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis &S.Context.Idents.get(attrStr), SourceLocation(), 256131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*args*/ 0, 0, 256231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*declspec*/ false, /*C++0x*/ false); 256331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis spliceAttrIntoList(*attr, chunk.getAttrListRef()); 256431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 256531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // TODO: mark whether we did this inference? 256631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 256731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 256831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnership(TypeProcessingState &state, 256931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 257031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 257131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 257231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 257331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 257431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis int inner = -1; 257531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 257631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(i); 257731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (chunk.Kind) { 257831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Paren: 257931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Ignore parens. 258031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 258131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 258231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Array: 258331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Reference: 258431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Pointer: 258531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis inner = i; 258631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 258731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 258831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::BlockPointer: 258931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclaratorChunk(state, ownership, i); 259031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 259131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Function: 259231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::MemberPointer: 259331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 259431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 259531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 259631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 259731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (inner == -1) 259831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 259931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 260031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(inner); 260131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (chunk.Kind == DeclaratorChunk::Pointer) { 260231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType()) 260331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 260431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCObjectType()) 260531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclaratorChunk(state, ownership, inner); 260631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } else { 260731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis assert(chunk.Kind == DeclaratorChunk::Array || 260831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis chunk.Kind == DeclaratorChunk::Reference); 260931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 261031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 261131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 261231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 261331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclaratorCast(Declarator &D, QualType FromTy) { 261431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeProcessingState state(*this, D); 261531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 261631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 261731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType declSpecTy = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 261831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy.isNull()) 261931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 262031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 262131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (getLangOptions().ObjCAutoRefCount) { 262231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership = Context.getInnerObjCOwnership(FromTy); 262331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (ownership != Qualifiers::OCL_None) 262431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis transferARCOwnership(state, declSpecTy, ownership); 262531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 262631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 262731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return GetFullTypeForDeclarator(state, declSpecTy, ReturnTypeInfo); 262831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 262931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 263014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall/// Map an AttributedType::Kind to an AttributeList::Kind. 263114aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic AttributeList::Kind getAttrListKind(AttributedType::Kind kind) { 263214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall switch (kind) { 263314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_address_space: 263414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_address_space; 263514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_regparm: 263614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_regparm; 263714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_vector_size: 263814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_vector_size; 263914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_vector_type: 264014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_neon_vector_type; 264114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_polyvector_type: 264214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_neon_polyvector_type; 264314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_objc_gc: 264414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_objc_gc; 2645b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributedType::attr_objc_ownership: 2646b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis return AttributeList::AT_objc_ownership; 264714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_noreturn: 264814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_noreturn; 264914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_cdecl: 265014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_cdecl; 265114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_fastcall: 265214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_fastcall; 265314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_stdcall: 265414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_stdcall; 265514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_thiscall: 265614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_thiscall; 265714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_pascal: 265814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_pascal; 2659414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributedType::attr_pcs: 2660414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return AttributeList::AT_pcs; 266114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 266214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall llvm_unreachable("unexpected attribute kind!"); 266314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::Kind(); 266414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 266514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 266614aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic void fillAttributedTypeLoc(AttributedTypeLoc TL, 266714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall const AttributeList *attrs) { 266814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributedType::Kind kind = TL.getAttrKind(); 266914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 267014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no type attributes in the expected location!"); 267114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributeList::Kind parsedKind = getAttrListKind(kind); 267214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall while (attrs->getKind() != parsedKind) { 267314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall attrs = attrs->getNext(); 267414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no matching attribute in expected location!"); 267514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 267614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 267714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrNameLoc(attrs->getLoc()); 267814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrExprOperand()) 267914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrExprOperand(attrs->getArg(0)); 268014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall else if (TL.hasAttrEnumOperand()) 268114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrEnumOperandLoc(attrs->getParameterLoc()); 268214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 268314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // FIXME: preserve this information to here. 268414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrOperand()) 268514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrOperandParensRange(SourceRange()); 268614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 268714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 268851bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 268951bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 2690c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor ASTContext &Context; 269151bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 2692f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 269351bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 2694c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(ASTContext &Context, const DeclSpec &DS) 2695c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor : Context(Context), DS(DS) {} 2696f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 269714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 269814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, DS.getAttributes().getList()); 269914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall Visit(TL.getModifiedLoc()); 270014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 270151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 270251bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 270351bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 270451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 270551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 270651bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 270751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 270851bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 2709c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 2710c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 2711c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Handle the base type, which might not have been written explicitly. 2712c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 2713c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(false); 2714c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.getBaseLoc().initialize(Context, SourceLocation()); 2715c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else { 2716c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(true); 2717c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getBaseLoc()); 2718c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 271954e14c4db764c0636160d26c5bbf491637c83a76John McCall 2720c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Protocol qualifiers. 272154e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 272254e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 272354e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 272454e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 272554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 272654e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 272754e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 272854e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 272954e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 273054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 273154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 273254e14c4db764c0636160d26c5bbf491637c83a76John McCall } 273351bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 273454e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 273554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 2736c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getPointeeLoc()); 273751bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 2738833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 2739a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 2740b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2741833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2742833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 2743833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 2744a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 27450daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.initialize(Context, DS.getTypeSpecTypeNameLoc()); 2746833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 2747833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 2748833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2749e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeLoc OldTL = TInfo->getTypeLoc(); 2750e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo->getType()->getAs<ElaboratedType>()) { 2751e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeLoc ElabTL = cast<ElaboratedTypeLoc>(OldTL); 2752e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TemplateSpecializationTypeLoc NamedTL = 2753e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara cast<TemplateSpecializationTypeLoc>(ElabTL.getNamedTypeLoc()); 2754e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(NamedTL); 2755e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2756e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara else 2757e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<TemplateSpecializationTypeLoc>(OldTL)); 2758833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 2759cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 2760cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 2761cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 2762cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 2763cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 2764cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 2765cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 2766cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 2767cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 2768b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall assert(DS.getRepAsType()); 2769cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 2770b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2771cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 2772cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 2773ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt void VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) { 2774ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt // FIXME: This holds only because we only have one unary transform. 2775ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getTypeSpecType() == DeclSpec::TST_underlyingType); 2776ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setKWLoc(DS.getTypeSpecTypeLoc()); 2777ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setParensRange(DS.getTypeofParensRange()); 2778ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getRepAsType()); 2779ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TypeSourceInfo *TInfo = 0; 2780ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2781ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setUnderlyingTInfo(TInfo); 2782ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 2783ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 2784ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 2785ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 2786ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 2787ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 2788ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 2789ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 2790ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 2791ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 2792ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 2793ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 2794ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 2795ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 2796ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 2797ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 2798e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 2799e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 2800e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 2801253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 2802e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 2803b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2804e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 2805e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<ElaboratedTypeLoc>(TInfo->getTypeLoc())); 2806e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 2807e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2808e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2809e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 2810e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 2811e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 2812e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 28139e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 2814e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); 2815e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2816e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 2817e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 2818e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 2819253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 2820e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 2821b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2822e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 2823e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<DependentNameTypeLoc>(TInfo->getTypeLoc())); 2824e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 2825e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2826e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2827e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 2828e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 2829e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 2830e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 28312494dd024b392b8def58bf067cc94b51c214cf77Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 28320daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); 283333500955d731c73717af52088b7fc0e7a85681e7John McCall } 283433500955d731c73717af52088b7fc0e7a85681e7John McCall void VisitDependentTemplateSpecializationTypeLoc( 283533500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypeLoc TL) { 283633500955d731c73717af52088b7fc0e7a85681e7John McCall ElaboratedTypeKeyword Keyword 283733500955d731c73717af52088b7fc0e7a85681e7John McCall = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 283833500955d731c73717af52088b7fc0e7a85681e7John McCall if (Keyword == ETK_Typename) { 283933500955d731c73717af52088b7fc0e7a85681e7John McCall TypeSourceInfo *TInfo = 0; 2840b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 284133500955d731c73717af52088b7fc0e7a85681e7John McCall if (TInfo) { 284233500955d731c73717af52088b7fc0e7a85681e7John McCall TL.copy(cast<DependentTemplateSpecializationTypeLoc>( 284333500955d731c73717af52088b7fc0e7a85681e7John McCall TInfo->getTypeLoc())); 284433500955d731c73717af52088b7fc0e7a85681e7John McCall return; 284533500955d731c73717af52088b7fc0e7a85681e7John McCall } 284633500955d731c73717af52088b7fc0e7a85681e7John McCall } 2847c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initializeLocal(Context, SourceLocation()); 284833500955d731c73717af52088b7fc0e7a85681e7John McCall TL.setKeywordLoc(Keyword != ETK_None 284933500955d731c73717af52088b7fc0e7a85681e7John McCall ? DS.getTypeSpecTypeLoc() 285033500955d731c73717af52088b7fc0e7a85681e7John McCall : SourceLocation()); 285133500955d731c73717af52088b7fc0e7a85681e7John McCall const CXXScopeSpec& SS = DS.getTypeSpecScope(); 285294fdffa4a572fc14ac296f5f1aae9db3734c72f1Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 28530daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); 28540daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara } 28550daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara void VisitTagTypeLoc(TagTypeLoc TL) { 28560daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); 2857e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2858e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 285951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 286051bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 2861c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initialize(Context, DS.getTypeSpecTypeLoc()); 286251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 286351bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 2864eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 286551bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 2866b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ASTContext &Context; 286751bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 2868f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 286951bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 2870b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(ASTContext &Context, const DeclaratorChunk &Chunk) 2871b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara : Context(Context), Chunk(Chunk) {} 28724adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 287351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 28749f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 287551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 28764adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 2877f85e193739c953358c865005855253af4f68a497John McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 2878f85e193739c953358c865005855253af4f68a497John McCall fillAttributedTypeLoc(TL, Chunk.getAttrs()); 2879f85e193739c953358c865005855253af4f68a497John McCall } 288051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 288151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 288251bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 28834adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 288451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 288551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 288651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 28874adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 288851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 288951bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 289051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 28914adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 289251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 289351bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 2894b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const CXXScopeSpec& SS = Chunk.Mem.Scope(); 2895b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NestedNameSpecifierLoc NNSLoc = SS.getWithLocInContext(Context); 2896b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 2897b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const Type* ClsTy = TL.getClass(); 2898b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara QualType ClsQT = QualType(ClsTy, 0); 2899b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeSourceInfo *ClsTInfo = Context.CreateTypeSourceInfo(ClsQT, 0); 2900b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Now copy source location info into the type loc component. 2901b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc ClsTL = ClsTInfo->getTypeLoc(); 2902b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara switch (NNSLoc.getNestedNameSpecifier()->getKind()) { 2903b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Identifier: 2904b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara assert(isa<DependentNameType>(ClsTy) && "Unexpected TypeLoc"); 2905b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara { 2906fd9c42ed22fb4f7f865f7d8f8848df84ddf8262cAbramo Bagnara DependentNameTypeLoc DNTLoc = cast<DependentNameTypeLoc>(ClsTL); 2907b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setKeywordLoc(SourceLocation()); 2908b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setQualifierLoc(NNSLoc.getPrefix()); 2909b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setNameLoc(NNSLoc.getLocalBeginLoc()); 2910b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 2911b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 2912b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 2913b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpec: 2914b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpecWithTemplate: 2915b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara if (isa<ElaboratedType>(ClsTy)) { 2916b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ElaboratedTypeLoc ETLoc = *cast<ElaboratedTypeLoc>(&ClsTL); 2917b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ETLoc.setKeywordLoc(SourceLocation()); 2918b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ETLoc.setQualifierLoc(NNSLoc.getPrefix()); 2919b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc NamedTL = ETLoc.getNamedTypeLoc(); 2920b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NamedTL.initializeFullCopy(NNSLoc.getTypeLoc()); 2921b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } else { 2922b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ClsTL.initializeFullCopy(NNSLoc.getTypeLoc()); 2923b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 2924b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 2925b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 2926b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Namespace: 2927b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::NamespaceAlias: 2928b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Global: 2929b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara llvm_unreachable("Nested-name-specifier must name a type"); 2930b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 2931b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 2932b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 2933b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Finally fill in MemberPointerLocInfo fields. 293451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 2935b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TL.setClassTInfo(ClsTInfo); 29364adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 293751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 293851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 293954e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 294054e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 294151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 294251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 294351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 294451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 294551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 294651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 294751bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 294851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 294951bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 295051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 295151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 295251bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 295351bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 295451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 295551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 2956796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeBegin(Chunk.Loc); 2957796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeEnd(Chunk.EndLoc); 2958dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor TL.setTrailingReturn(!!Chunk.Fun.TrailingReturnType); 295951bd803fbdade51d674598ed45da3d54190a656cJohn McCall 296051bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 296154e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 2962d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 296354e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 29644adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 296551bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 29664adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 2967075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara void VisitParenTypeLoc(ParenTypeLoc TL) { 2968075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Chunk.Kind == DeclaratorChunk::Paren); 2969075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setLParenLoc(Chunk.Loc); 2970075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setRParenLoc(Chunk.EndLoc); 2971075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 29721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 297351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 29749f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 29754adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 297651bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 297751bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 29784adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 2979a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 298051bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 298151bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 298205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// 298305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// \param ReturnTypeInfo For declarators whose return type does not show 298405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// up in the normal place in the declaration specifiers (such as a C++ 298505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// conversion function), this pointer will refer to a type source information 298605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// for that return type. 2987a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 298805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas GregorSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T, 298905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo) { 2990a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 2991a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 299251bd803fbdade51d674598ed45da3d54190a656cJohn McCall 2993a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Handle parameter packs whose type is a pack expansion. 2994a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (isa<PackExpansionType>(T)) { 2995a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor cast<PackExpansionTypeLoc>(CurrTL).setEllipsisLoc(D.getEllipsisLoc()); 2996a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 2997a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2998a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 29998ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 300014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall while (isa<AttributedTypeLoc>(CurrTL)) { 300114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributedTypeLoc TL = cast<AttributedTypeLoc>(CurrTL); 300214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, D.getTypeObject(i).getAttrs()); 300314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall CurrTL = TL.getNextTypeLoc().getUnqualifiedLoc(); 300414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 300514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 3006b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(Context, D.getTypeObject(i)).Visit(CurrTL); 300751bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 30084adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 3009f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 3010b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // If we have different source information for the return type, use 3011b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // that. This really only applies to C++ conversion functions. 3012b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ReturnTypeInfo) { 301305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeLoc TL = ReturnTypeInfo->getTypeLoc(); 301405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); 301505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); 3016b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } else { 3017c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(Context, D.getDeclSpec()).Visit(CurrTL); 301805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor } 301905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 3020a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 30214adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 30224adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3023a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 3024b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallParsedType Sema::CreateParsedType(QualType T, TypeSourceInfo *TInfo) { 30251bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 30261bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 30271bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 3028eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 3029eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor TypeAlignment); 3030a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 30311bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 30321bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 3033b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return ParsedType::make(QualType(LocT, 0)); 30341bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 30351bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 30361bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 30371bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 3038b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("LocInfoType leaked into the type system; an opaque TypeTy*" 303935d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 304035d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 30411bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 30421bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 3043f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallTypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 30445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 30455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 30465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 30471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3048d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S); 3049bf1a028246d884a540aeafa38e89be59a269b072John McCall QualType T = TInfo->getType(); 30505153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 3051809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 30525912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 3053402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus) { 3054402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 30556d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 3056402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 3057402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 3058b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return CreateParsedType(T, TInfo); 30595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 30605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3061e97179c675b341927807c718be215c8d1aab8acbDouglas GregorParsedType Sema::ActOnObjCInstanceType(SourceLocation Loc) { 3062e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor QualType T = Context.getObjCInstanceType(); 3063e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor TypeSourceInfo *TInfo = Context.getTrivialTypeSourceInfo(T, Loc); 3064e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor return CreateParsedType(T, TInfo); 3065e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor} 3066e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3067e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3068c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3069c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 3070c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3071232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3072232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 3073c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 3074c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 30751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 3076c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 30770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3078232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 307929e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "No type shall be qualified by 308029e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // qualifiers for two or more different address spaces." 3081232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 3082c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 3083e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3084c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3085232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 30861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3087020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "A function type shall not be 3088020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // qualified by an address-space qualifier." 3089020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne if (Type->isFunctionType()) { 3090020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_address_function_type); 3091020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne Attr.setInvalid(); 3092020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne return; 3093020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne } 3094020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne 3095232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 3096545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 3097f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3098e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3099c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3100232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3101545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *ASArgExpr = static_cast<Expr *>(Attr.getArg(0)); 3102232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 3103ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (ASArgExpr->isTypeDependent() || ASArgExpr->isValueDependent() || 3104ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 3105dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_space_not_int) 3106dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner << ASArgExpr->getSourceRange(); 3107e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3108c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3109232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3110232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3111efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 3112efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 3113efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 3114efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 3115efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 3116e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3117efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3118efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3119efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 3120efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3121efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 31220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 3123efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 3124efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 31250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall << Qualifiers::MaxAddressSpace << ASArgExpr->getSourceRange(); 3126e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3127efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3128efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3129efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 31301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 3131f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 3132c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 3133c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 3134b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis/// handleObjCOwnershipTypeAttr - Process an objc_ownership 3135f85e193739c953358c865005855253af4f68a497John McCall/// attribute on the specified type. 3136f85e193739c953358c865005855253af4f68a497John McCall/// 3137f85e193739c953358c865005855253af4f68a497John McCall/// Returns 'true' if the attribute was handled. 3138b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 3139f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, 3140f85e193739c953358c865005855253af4f68a497John McCall QualType &type) { 3141f85e193739c953358c865005855253af4f68a497John McCall if (!type->isObjCRetainableType() && !type->isDependentType()) 3142f85e193739c953358c865005855253af4f68a497John McCall return false; 3143f85e193739c953358c865005855253af4f68a497John McCall 3144f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 3145440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis SourceLocation AttrLoc = attr.getLoc(); 3146440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isMacroID()) 3147440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis AttrLoc = S.getSourceManager().getImmediateExpansionRange(AttrLoc).first; 3148f85e193739c953358c865005855253af4f68a497John McCall 3149f85e193739c953358c865005855253af4f68a497John McCall if (type.getQualifiers().getObjCLifetime()) { 3150440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_attr_objc_ownership_redundant) 3151f85e193739c953358c865005855253af4f68a497John McCall << type; 3152f85e193739c953358c865005855253af4f68a497John McCall return true; 3153f85e193739c953358c865005855253af4f68a497John McCall } 3154f85e193739c953358c865005855253af4f68a497John McCall 3155f85e193739c953358c865005855253af4f68a497John McCall if (!attr.getParameterName()) { 3156440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_attribute_argument_n_not_string) 3157b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis << "objc_ownership" << 1; 3158f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3159f85e193739c953358c865005855253af4f68a497John McCall return true; 3160f85e193739c953358c865005855253af4f68a497John McCall } 3161f85e193739c953358c865005855253af4f68a497John McCall 3162f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime; 3163f85e193739c953358c865005855253af4f68a497John McCall if (attr.getParameterName()->isStr("none")) 3164f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_ExplicitNone; 3165f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("strong")) 3166f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Strong; 3167f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("weak")) 3168f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Weak; 3169f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("autoreleasing")) 3170f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Autoreleasing; 3171f85e193739c953358c865005855253af4f68a497John McCall else { 3172440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::warn_attribute_type_not_supported) 3173b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis << "objc_ownership" << attr.getParameterName(); 3174f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3175f85e193739c953358c865005855253af4f68a497John McCall return true; 3176f85e193739c953358c865005855253af4f68a497John McCall } 3177f85e193739c953358c865005855253af4f68a497John McCall 3178f85e193739c953358c865005855253af4f68a497John McCall // Consume lifetime attributes without further comment outside of 3179f85e193739c953358c865005855253af4f68a497John McCall // ARC mode. 3180f85e193739c953358c865005855253af4f68a497John McCall if (!S.getLangOptions().ObjCAutoRefCount) 3181f85e193739c953358c865005855253af4f68a497John McCall return true; 3182f85e193739c953358c865005855253af4f68a497John McCall 3183f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 3184f85e193739c953358c865005855253af4f68a497John McCall qs.setObjCLifetime(lifetime); 3185f85e193739c953358c865005855253af4f68a497John McCall QualType origType = type; 3186f85e193739c953358c865005855253af4f68a497John McCall type = S.Context.getQualifiedType(type, qs); 3187f85e193739c953358c865005855253af4f68a497John McCall 3188f85e193739c953358c865005855253af4f68a497John McCall // If we have a valid source location for the attribute, use an 3189f85e193739c953358c865005855253af4f68a497John McCall // AttributedType instead. 3190440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isValid()) 3191b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis type = S.Context.getAttributedType(AttributedType::attr_objc_ownership, 3192f85e193739c953358c865005855253af4f68a497John McCall origType, type); 3193f85e193739c953358c865005855253af4f68a497John McCall 31949f084a3166b684573ba49df28fc5792bc37d92e1John McCall // Forbid __weak if the runtime doesn't support it. 3195f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_Weak && 31969f084a3166b684573ba49df28fc5792bc37d92e1John McCall !S.getLangOptions().ObjCRuntimeHasWeak) { 3197f85e193739c953358c865005855253af4f68a497John McCall 3198f85e193739c953358c865005855253af4f68a497John McCall // Actually, delay this until we know what we're parsing. 3199f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 3200f85e193739c953358c865005855253af4f68a497John McCall S.DelayedDiagnostics.add( 3201440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis sema::DelayedDiagnostic::makeForbiddenType( 3202440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.getSourceManager().getExpansionLoc(AttrLoc), 3203f85e193739c953358c865005855253af4f68a497John McCall diag::err_arc_weak_no_runtime, type, /*ignored*/ 0)); 3204f85e193739c953358c865005855253af4f68a497John McCall } else { 3205440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_arc_weak_no_runtime); 3206f85e193739c953358c865005855253af4f68a497John McCall } 3207f85e193739c953358c865005855253af4f68a497John McCall 3208f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3209f85e193739c953358c865005855253af4f68a497John McCall return true; 3210f85e193739c953358c865005855253af4f68a497John McCall } 3211742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 3212742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian // Forbid __weak for class objects marked as 3213742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian // objc_arc_weak_reference_unavailable 3214742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (lifetime == Qualifiers::OCL_Weak) { 3215742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian QualType T = type; 3216742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian while (const PointerType *ptr = T->getAs<PointerType>()) 3217742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian T = ptr->getPointeeType(); 3218742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (const ObjCObjectPointerType *ObjT = T->getAs<ObjCObjectPointerType>()) { 3219742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian ObjCInterfaceDecl *Class = ObjT->getInterfaceDecl(); 32207263feeb367ab55af7e9a6fd701148b1b8264dbaFariborz Jahanian if (Class->isArcWeakrefUnavailable()) { 3221440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_arc_unsupported_weak_class); 3222742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian S.Diag(ObjT->getInterfaceDecl()->getLocation(), 3223742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian diag::note_class_declared); 3224742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 3225742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 3226742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 3227742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 3228f85e193739c953358c865005855253af4f68a497John McCall return true; 3229f85e193739c953358c865005855253af4f68a497John McCall} 3230f85e193739c953358c865005855253af4f68a497John McCall 3231711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// handleObjCGCTypeAttr - Process the __attribute__((objc_gc)) type 3232711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// attribute on the specified type. Returns true to indicate that 3233711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// the attribute was handled, false to indicate that the type does 3234711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// not permit the attribute. 3235711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 3236711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 3237711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 3238711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 3239711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3240711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this isn't some kind of pointer. 3241711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!type->isPointerType() && 3242711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isObjCObjectPointerType() && 3243711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isBlockPointerType()) 3244711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3245711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3246711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (type.getObjCGCAttr() != Qualifiers::GCNone) { 3247711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_multiple_objc_gc); 3248711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3249711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3250d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 32511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3252d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 3253711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!attr.getParameterName()) { 3254711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 3255ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian << "objc_gc" << 1; 3256711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3257711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3258ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 32590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 3260711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 3261711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3262711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3263711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3264d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 3265711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getParameterName()->isStr("weak")) 32660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 3267711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (attr.getParameterName()->isStr("strong")) 32680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 3269d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 3270711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_type_not_supported) 3271711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << "objc_gc" << attr.getParameterName(); 3272711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3273711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3274d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 32751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 327614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall QualType origType = type; 327714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getObjCGCQualType(origType, GCAttr); 327814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 327914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // Make an attributed type to preserve the source information. 328014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (attr.getLoc().isValid()) 328114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getAttributedType(AttributedType::attr_objc_gc, 328214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall origType, type); 328314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 3284711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3285d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 3286d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 3287e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCallnamespace { 3288e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// A helper class to unwrap a type down to a function for the 3289e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// purposes of applying attributes there. 3290e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// 3291e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// Use: 3292e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// FunctionTypeUnwrapper unwrapped(SemaRef, T); 3293e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// if (unwrapped.isFunctionType()) { 3294e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// const FunctionType *fn = unwrapped.get(); 3295e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// // change fn somehow 3296e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// T = unwrapped.wrap(fn); 3297e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// } 3298e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall struct FunctionTypeUnwrapper { 3299e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall enum WrapKind { 3300e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Desugar, 3301e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Parens, 3302e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Pointer, 3303e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall BlockPointer, 3304e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Reference, 3305e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall MemberPointer 3306e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 3307e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3308e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType Original; 3309e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *Fn; 33105f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned char /*WrapKind*/, 8> Stack; 3311e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3312e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionTypeUnwrapper(Sema &S, QualType T) : Original(T) { 3313e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall while (true) { 3314e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *Ty = T.getTypePtr(); 3315e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<FunctionType>(Ty)) { 3316e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = cast<FunctionType>(Ty); 3317e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 3318e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ParenType>(Ty)) { 3319e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ParenType>(Ty)->getInnerType(); 3320e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Parens); 3321e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<PointerType>(Ty)) { 3322e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<PointerType>(Ty)->getPointeeType(); 3323e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Pointer); 3324e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<BlockPointerType>(Ty)) { 3325e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<BlockPointerType>(Ty)->getPointeeType(); 3326e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(BlockPointer); 3327e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<MemberPointerType>(Ty)) { 3328e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<MemberPointerType>(Ty)->getPointeeType(); 3329e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(MemberPointer); 3330e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ReferenceType>(Ty)) { 3331e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ReferenceType>(Ty)->getPointeeType(); 3332e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Reference); 3333e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else { 3334e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *DTy = Ty->getUnqualifiedDesugaredType(); 3335e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (Ty == DTy) { 3336e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = 0; 3337e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 3338e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3339e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3340e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = QualType(DTy, 0); 3341e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Desugar); 3342e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3343e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3344e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3345e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3346e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall bool isFunctionType() const { return (Fn != 0); } 3347e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *get() const { return Fn; } 3348e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3349e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(Sema &S, const FunctionType *New) { 3350e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // If T wasn't modified from the unwrapped type, do nothing. 3351e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (New == get()) return Original; 3352e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3353e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = New; 3354e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(S.Context, Original, 0); 3355e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3356e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3357e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall private: 3358e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, QualType Old, unsigned I) { 3359e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) 3360e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(Fn, Old.getQualifiers()); 3361e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3362e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Build up the inner type, applying the qualifiers from the old 3363e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // type to the new type. 3364e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall SplitQualType SplitOld = Old.split(); 3365e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3366e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // As a special case, tail-recurse if there are no qualifiers. 3367e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (SplitOld.second.empty()) 3368e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, SplitOld.first, I); 3369e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(wrap(C, SplitOld.first, I), SplitOld.second); 3370e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3371e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3372e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, const Type *Old, unsigned I) { 3373e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) return QualType(Fn, 0); 3374e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3375e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall switch (static_cast<WrapKind>(Stack[I++])) { 3376e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Desugar: 3377e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // This is the point at which we potentially lose source 3378e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // information. 3379e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, Old->getUnqualifiedDesugaredType(), I); 3380e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3381e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Parens: { 3382e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<ParenType>(Old)->getInnerType(), I); 3383e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getParenType(New); 3384e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3385e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3386e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Pointer: { 3387e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<PointerType>(Old)->getPointeeType(), I); 3388e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getPointerType(New); 3389e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3390e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3391e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case BlockPointer: { 3392e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<BlockPointerType>(Old)->getPointeeType(),I); 3393e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getBlockPointerType(New); 3394e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3395e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3396e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case MemberPointer: { 3397e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const MemberPointerType *OldMPT = cast<MemberPointerType>(Old); 3398e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldMPT->getPointeeType(), I); 3399e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getMemberPointerType(New, OldMPT->getClass()); 3400e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3401e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3402e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Reference: { 3403e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const ReferenceType *OldRef = cast<ReferenceType>(Old); 3404e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldRef->getPointeeType(), I); 3405e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<LValueReferenceType>(OldRef)) 3406e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getLValueReferenceType(New, OldRef->isSpelledAsLValue()); 3407e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall else 3408e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getRValueReferenceType(New); 3409e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3410e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3411e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3412e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall llvm_unreachable("unknown wrapping kind"); 3413e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return QualType(); 3414e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3415e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 3416e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall} 3417e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3418711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Process an individual function attribute. Returns true to 3419711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// indicate that the attribute was handled, false if it wasn't. 3420711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 3421711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 3422711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 3423711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 3424e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3425711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionTypeUnwrapper unwrapped(S, type); 34262455636163fdd18581d7fdae816433f886d88213Mike Stump 3427711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getKind() == AttributeList::AT_noreturn) { 3428711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) 342904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 3430e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3431e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Delay if this is not a function type. 3432711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 3433711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3434425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 3435425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 3436711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withNoReturn(true); 3437711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3438711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3439711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3440425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 3441f85e193739c953358c865005855253af4f68a497John McCall // ns_returns_retained is not always a type attribute, but if we got 3442f85e193739c953358c865005855253af4f68a497John McCall // here, we're treating it as one right now. 3443f85e193739c953358c865005855253af4f68a497John McCall if (attr.getKind() == AttributeList::AT_ns_returns_retained) { 3444f85e193739c953358c865005855253af4f68a497John McCall assert(S.getLangOptions().ObjCAutoRefCount && 3445f85e193739c953358c865005855253af4f68a497John McCall "ns_returns_retained treated as type attribute in non-ARC"); 3446f85e193739c953358c865005855253af4f68a497John McCall if (attr.getNumArgs()) return true; 3447f85e193739c953358c865005855253af4f68a497John McCall 3448f85e193739c953358c865005855253af4f68a497John McCall // Delay if this is not a function type. 3449f85e193739c953358c865005855253af4f68a497John McCall if (!unwrapped.isFunctionType()) 3450f85e193739c953358c865005855253af4f68a497John McCall return false; 3451f85e193739c953358c865005855253af4f68a497John McCall 3452f85e193739c953358c865005855253af4f68a497John McCall FunctionType::ExtInfo EI 3453f85e193739c953358c865005855253af4f68a497John McCall = unwrapped.get()->getExtInfo().withProducesResult(true); 3454f85e193739c953358c865005855253af4f68a497John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3455f85e193739c953358c865005855253af4f68a497John McCall return true; 3456f85e193739c953358c865005855253af4f68a497John McCall } 3457f85e193739c953358c865005855253af4f68a497John McCall 3458711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getKind() == AttributeList::AT_regparm) { 3459711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned value; 3460711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, value)) 3461711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 34621e030eb1194763b42c1752723be23b1515f48981John McCall 3463711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this is not a function type. 3464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 3465008df5dce3938456ae7ea2e7ab3b2d12391ebf3eJohn McCall return false; 34661e030eb1194763b42c1752723be23b1515f48981John McCall 3467ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Diagnose regparm with fastcall. 3468ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis const FunctionType *fn = unwrapped.get(); 3469ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis CallingConv CC = fn->getCallConv(); 3470ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis if (CC == CC_X86FastCall) { 3471ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 3472ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC) 3473ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm"; 3474ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 3475ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 3476ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 3477ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 3478e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionType::ExtInfo EI = 3479711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unwrapped.get()->getExtInfo().withRegParm(value); 3480711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3481711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3482425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 3483425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 348404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 3485711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 3486711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 3487711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3488f82b4e85b1219295cad4b5851b035575bc293010John McCall 348904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if the type didn't work out to a function. 3490711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) return false; 349104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 3492711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionType *fn = unwrapped.get(); 3493711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CCOld = fn->getCallConv(); 3494064f7db69def9299f5f4d9a32114afc10b6a6420Charles Davis if (S.Context.getCanonicalCallConv(CC) == 3495e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Context.getCanonicalCallConv(CCOld)) { 3496ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis FunctionType::ExtInfo EI= unwrapped.get()->getExtInfo().withCallingConv(CC); 3497ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3498711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3499e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 350004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 35018e68f1c8a2919ea83c2053731d6011074f1062e1Roman Divacky if (CCOld != (S.LangOpts.MRTD ? CC_X86StdCall : CC_Default)) { 350204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Should we diagnose reapplications of the same convention? 3503711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 350404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC) 350504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CCOld); 3506711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3507711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 350804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 350904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 351004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 351104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 3512711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isa<FunctionNoProtoType>(fn)) { 3513711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_knr) 351404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 3515711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3516711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 351704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 351804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 3519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(fn); 352004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 3521711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_varargs) 352204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 3523711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3524711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 352504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 3526ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 3527ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Also diagnose fastcall with regparm. 3528a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman if (fn->getHasRegParm()) { 3529ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 3530ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm" 3531ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC); 3532ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 3533ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 3534ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 353504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 3536f82b4e85b1219295cad4b5851b035575bc293010John McCall 3537711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withCallingConv(CC); 3538711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3539711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3540f82b4e85b1219295cad4b5851b035575bc293010John McCall} 3541f82b4e85b1219295cad4b5851b035575bc293010John McCall 3542207f4d8543529221932af82836016a2ef066c917Peter Collingbourne/// Handle OpenCL image access qualifiers: read_only, write_only, read_write 3543207f4d8543529221932af82836016a2ef066c917Peter Collingbournestatic void HandleOpenCLImageAccessAttribute(QualType& CurType, 3544207f4d8543529221932af82836016a2ef066c917Peter Collingbourne const AttributeList &Attr, 3545207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Sema &S) { 3546207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Check the attribute arguments. 3547207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (Attr.getNumArgs() != 1) { 3548207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3549207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3550207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 3551207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3552207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 3553207f4d8543529221932af82836016a2ef066c917Peter Collingbourne llvm::APSInt arg(32); 3554207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 3555207f4d8543529221932af82836016a2ef066c917Peter Collingbourne !sizeExpr->isIntegerConstantExpr(arg, S.Context)) { 3556207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 3557207f4d8543529221932af82836016a2ef066c917Peter Collingbourne << "opencl_image_access" << sizeExpr->getSourceRange(); 3558207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3559207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 3560207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3561207f4d8543529221932af82836016a2ef066c917Peter Collingbourne unsigned iarg = static_cast<unsigned>(arg.getZExtValue()); 3562207f4d8543529221932af82836016a2ef066c917Peter Collingbourne switch (iarg) { 3563207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_only: 3564207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_write_only: 3565207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_write: 3566207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 3567207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 3568207f4d8543529221932af82836016a2ef066c917Peter Collingbourne default: 3569207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 3570207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 3571207f4d8543529221932af82836016a2ef066c917Peter Collingbourne << sizeExpr->getSourceRange(); 3572207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3573207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 3574207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3575207f4d8543529221932af82836016a2ef066c917Peter Collingbourne} 3576207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 35776e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 35786e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 35796e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 35806e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 35816e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 35826e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 35836e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 3584788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, 3585788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Sema &S) { 358656affbcaeff9a01caa70b2a237f7e6ac31c8ded6Bob Wilson // Check the attribute arguments. 35876e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 35886e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3589e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 35906e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 35916e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 35926e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 35936e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 3594ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 3595ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 35966e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 35976e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << "vector_size" << sizeExpr->getSourceRange(); 3598e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 35996e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 36006e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 36016e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the base type must be integer or float, and can't already be a vector. 3602f60946222721d9ba3c059563935c17b84703187aDouglas Gregor if (!CurType->isIntegerType() && !CurType->isRealFloatingType()) { 36036e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 3604e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 36056e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 36066e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 36076e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 36086e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 36096e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 36106e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 36116e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 36126e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 36136e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 36146e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 3615e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 36166e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 36176e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 36186e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 36196e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 36206e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 3621e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 36226e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 36236e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 36246e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 36256e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 36266e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 3627788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, 3628e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::GenericVector); 36296e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 36306e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 36314ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// \brief Process the OpenCL-like ext_vector_type attribute when it occurs on 36324ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// a type. 36334ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregorstatic void HandleExtVectorTypeAttr(QualType &CurType, 36344ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor const AttributeList &Attr, 36354ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Sema &S) { 36364ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Expr *sizeExpr; 36374ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 36384ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Special case where the argument is a template id. 36394ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Attr.getParameterName()) { 36404ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CXXScopeSpec SS; 36414ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor UnqualifiedId id; 36424ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 36434ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 36444ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor ExprResult Size = S.ActOnIdExpression(S.getCurScope(), SS, id, false, 36454ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor false); 36464ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 36474ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 36484ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 36494ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 36504ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } else { 36514ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // check the attribute arguments. 36524ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Attr.getNumArgs() != 1) { 36534ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 36544ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 36554ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 36564ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Attr.getArg(0); 36574ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 36584ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 36594ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Create the vector type. 36604ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor QualType T = S.BuildExtVectorType(CurType, sizeExpr, Attr.getLoc()); 36614ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (!T.isNull()) 36624ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CurType = T; 36634ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor} 36644ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 36654211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// HandleNeonVectorTypeAttr - The "neon_vector_type" and 36664211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// "neon_polyvector_type" attributes are used to create vector types that 36674211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// are mangled according to ARM's ABI. Otherwise, these types are identical 36684211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// to those created with the "vector_size" attribute. Unlike "vector_size" 36694211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// the argument to these Neon attributes is the number of vector elements, 36704211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// not the vector size in bytes. The vector width and element type must 36714211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// match one of the standard Neon vector types. 36724211bb68cff1f310be280f66a59520548ef99d8fBob Wilsonstatic void HandleNeonVectorTypeAttr(QualType& CurType, 36734211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const AttributeList &Attr, Sema &S, 36744211bb68cff1f310be280f66a59520548ef99d8fBob Wilson VectorType::VectorKind VecKind, 36754211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const char *AttrName) { 36764211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Check the attribute arguments. 36774211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (Attr.getNumArgs() != 1) { 36784211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 36794211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 36804211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 36814211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 36824211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The number of elements must be an ICE. 36834211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Expr *numEltsExpr = static_cast<Expr *>(Attr.getArg(0)); 36844211bb68cff1f310be280f66a59520548ef99d8fBob Wilson llvm::APSInt numEltsInt(32); 36854211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (numEltsExpr->isTypeDependent() || numEltsExpr->isValueDependent() || 36864211bb68cff1f310be280f66a59520548ef99d8fBob Wilson !numEltsExpr->isIntegerConstantExpr(numEltsInt, S.Context)) { 36874211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 36884211bb68cff1f310be280f66a59520548ef99d8fBob Wilson << AttrName << numEltsExpr->getSourceRange(); 36894211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 36904211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 36914211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 36924211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Only certain element types are supported for Neon vectors. 36934211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const BuiltinType* BTy = CurType->getAs<BuiltinType>(); 36944211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (!BTy || 36954211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (VecKind == VectorType::NeonPolyVector && 36964211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::SChar && 36974211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short) || 36984211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (BTy->getKind() != BuiltinType::SChar && 36994211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UChar && 37004211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short && 37014211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UShort && 37024211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Int && 37034211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UInt && 37044211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::LongLong && 37054211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::ULongLong && 37064211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Float)) { 37074211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) <<CurType; 37084211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 37094211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 37104211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 37114211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The total size of the vector must be 64 or 128 bits. 37124211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 37134211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned numElts = static_cast<unsigned>(numEltsInt.getZExtValue()); 37144211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned vecSize = typeSize * numElts; 37154211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (vecSize != 64 && vecSize != 128) { 37164211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_bad_neon_vector_size) << CurType; 37174211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 37184211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 37194211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 37204211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 37214211bb68cff1f310be280f66a59520548ef99d8fBob Wilson CurType = S.Context.getVectorType(CurType, numElts, VecKind); 37224211bb68cff1f310be280f66a59520548ef99d8fBob Wilson} 37234211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 3724711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, QualType &type, 3725711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool isDeclSpec, AttributeList *attrs) { 3726c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 3727c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 3728c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 3729c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 3730711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3731711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 3732711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 3733711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr = *attrs; 3734711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr.getNext(); 3735711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3736e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Skip attributes that were marked to be invalid. 3737711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 3738e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara continue; 3739e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 3740b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 3741b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 3742711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 3743c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner default: break; 374404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 3745c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner case AttributeList::AT_address_space: 3746711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleAddressSpaceTypeAttribute(type, attr, state.getSema()); 3747c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 3748711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 3749711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!handleObjCPointerTypeAttr(state, attr, type)) 3750711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttr(state, attr, type); 3751d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 375204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_vector_size: 3753711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleVectorSizeAttr(type, attr, state.getSema()); 3754f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 37554ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor case AttributeList::AT_ext_vector_type: 37564ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (state.getDeclarator().getDeclSpec().getStorageClassSpec() 37574ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor != DeclSpec::SCS_typedef) 37584ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor HandleExtVectorTypeAttr(type, attr, state.getSema()); 37594ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor break; 37604211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 3761711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 3762711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonVector, "neon_vector_type"); 37634211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 37644211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 3765711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 3766711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonPolyVector, 37674211bb68cff1f310be280f66a59520548ef99d8fBob Wilson "neon_polyvector_type"); 37684211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 3769207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case AttributeList::AT_opencl_image_access: 3770207f4d8543529221932af82836016a2ef066c917Peter Collingbourne HandleOpenCLImageAccessAttribute(type, attr, state.getSema()); 3771207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 3772207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 3773f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_ns_returns_retained: 3774f85e193739c953358c865005855253af4f68a497John McCall if (!state.getSema().getLangOptions().ObjCAutoRefCount) 3775f85e193739c953358c865005855253af4f68a497John McCall break; 3776f85e193739c953358c865005855253af4f68a497John McCall // fallthrough into the function attrs 3777f85e193739c953358c865005855253af4f68a497John McCall 3778711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 3779711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Never process function type attributes as part of the 3780711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // declaration-specifiers. 3781711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isDeclSpec) 3782711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclSpec(state, attr, type); 3783711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3784711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, handle the possible delays. 3785711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (!handleFunctionTypeAttr(state, attr, type)) 3786711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttr(state, attr, type); 37876e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 3788c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 3789711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attrs = next)); 3790232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 3791232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3792e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \brief Ensure that the type of the given expression is complete. 3793e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 3794e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// This routine checks whether the expression \p E has a complete type. If the 3795e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// expression refers to an instantiable construct, that instantiation is 3796e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// performed as needed to complete its type. Furthermore 3797e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// Sema::RequireCompleteType is called for the expression's type (or in the 3798e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// case of a reference type, the referred-to type). 3799e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 3800e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \param E The expression whose type is required to be complete. 3801e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \param PD The partial diagnostic that will be printed out if the type cannot 3802e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// be completed. 3803e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 3804e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \returns \c true if the type of \p E is incomplete and diagnosed, \c false 3805e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// otherwise. 3806e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruthbool Sema::RequireCompleteExprType(Expr *E, const PartialDiagnostic &PD, 3807e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth std::pair<SourceLocation, 3808e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth PartialDiagnostic> Note) { 3809e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth QualType T = E->getType(); 3810e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 3811e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Fast path the case where the type is already complete. 3812e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (!T->isIncompleteType()) 3813e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth return false; 3814e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 3815e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Incomplete array types may be completed by the initializer attached to 3816e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // their definitions. For static data members of class templates we need to 3817e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // instantiate the definition to get this initializer and complete the type. 3818e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (T->isIncompleteArrayType()) { 3819e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 3820e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 3821e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (Var->isStaticDataMember() && 3822e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth Var->getInstantiatedFromStaticDataMember()) { 382336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 382436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MemberSpecializationInfo *MSInfo = Var->getMemberSpecializationInfo(); 382536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor assert(MSInfo && "Missing member specialization information?"); 382636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getTemplateSpecializationKind() 382736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor != TSK_ExplicitSpecialization) { 382836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // If we don't already have a point of instantiation, this is it. 382936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getPointOfInstantiation().isInvalid()) { 383036f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MSInfo->setPointOfInstantiation(E->getLocStart()); 383136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 383236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // This is a modification of an existing AST node. Notify 383336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // listeners. 383436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (ASTMutationListener *L = getASTMutationListener()) 383536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor L->StaticDataMemberInstantiated(Var); 383636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 383736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 383836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor InstantiateStaticDataMemberDefinition(E->getExprLoc(), Var); 383936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 384036f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // Update the type to the newly instantiated definition's type both 384136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // here and within the expression. 384236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (VarDecl *Def = Var->getDefinition()) { 384336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setDecl(Def); 384436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor T = Def->getType(); 384536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setType(T); 384636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor E->setType(T); 384736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 3848f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor } 3849f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor 3850e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // We still go on to try to complete the type independently, as it 3851e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // may also require instantiations or diagnostics if it remains 3852e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // incomplete. 3853e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 3854e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 3855e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 3856e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 3857e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 3858e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // FIXME: Are there other cases which require instantiating something other 3859e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // than the type to complete the type of an expression? 3860e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 3861e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Look through reference types and complete the referred type. 3862e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (const ReferenceType *Ref = T->getAs<ReferenceType>()) 3863e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth T = Ref->getPointeeType(); 3864e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 3865e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth return RequireCompleteType(E->getExprLoc(), T, PD, Note); 3866e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth} 3867e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 38681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 38694ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 38704ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 38714ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 387286447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 387386447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 387486447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 387586447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 387686447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 38774ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 38784ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 38794ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 38804ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 38814ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 38824ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 38831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @param PD The partial diagnostic that will be printed out if T is not a 3884b790661a15d93941d2c33a0ea328254277b3d7e3Anders Carlsson/// complete type. 38854ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 38864ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 38874ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 388891a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 38898c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson const PartialDiagnostic &PD, 38908c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson std::pair<SourceLocation, 38918c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson PartialDiagnostic> Note) { 389291a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson unsigned diag = PD.getDiagID(); 38931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3894573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 3895573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 3896690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 3897690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 3898690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 38991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 3900690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 3901690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 39024ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 39034ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (!T->isIncompleteType()) 39044ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 39054ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 3906d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 3907923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 3908923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 3909923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 391089c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor if (const ConstantArrayType *Array = Context.getAsConstantArrayType(T)) 3911923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 3912923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 39132943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 3914d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 3915972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 3916972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 3917d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 39185842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor /*Complain=*/diag != 0); 39191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 3920d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 3921d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass()) { 3922b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor MemberSpecializationInfo *MSInfo = Rec->getMemberSpecializationInfo(); 3923b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor assert(MSInfo && "Missing member specialization information?"); 3924357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 3925b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor if (MSInfo->getTemplateSpecializationKind() 3926972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor != TSK_ExplicitSpecialization) 3927f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 3928f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 3929f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 3930f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor /*Complain=*/diag != 0); 3931d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 3932d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 3933d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 39342943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 39355842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor if (diag == 0) 39365842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 39371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3938916c870442978db40404d51348cdf5524e506faaJohn McCall const TagType *Tag = T->getAs<TagType>(); 393901620704304f819b82ecef769ec114e541a364d7Rafael Espindola 394001620704304f819b82ecef769ec114e541a364d7Rafael Espindola // Avoid diagnosing invalid decls as incomplete. 394101620704304f819b82ecef769ec114e541a364d7Rafael Espindola if (Tag && Tag->getDecl()->isInvalidDecl()) 394201620704304f819b82ecef769ec114e541a364d7Rafael Espindola return true; 394301620704304f819b82ecef769ec114e541a364d7Rafael Espindola 3944916c870442978db40404d51348cdf5524e506faaJohn McCall // Give the external AST source a chance to complete the type. 3945916c870442978db40404d51348cdf5524e506faaJohn McCall if (Tag && Tag->getDecl()->hasExternalLexicalStorage()) { 3946916c870442978db40404d51348cdf5524e506faaJohn McCall Context.getExternalSource()->CompleteType(Tag->getDecl()); 3947916c870442978db40404d51348cdf5524e506faaJohn McCall if (!Tag->isIncompleteType()) 3948916c870442978db40404d51348cdf5524e506faaJohn McCall return false; 3949916c870442978db40404d51348cdf5524e506faaJohn McCall } 3950916c870442978db40404d51348cdf5524e506faaJohn McCall 39514ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 395291a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson Diag(Loc, PD) << T; 39533c0eb160ca1361a82b9f15b3b40a2425adc14d0fEli Friedman 39548c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson // If we have a note, produce it. 39558c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson if (!Note.first.isInvalid()) 39568c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson Diag(Note.first, Note.second); 39578c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson 39584ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 395901620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 39604ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 39611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 39624ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 39634ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 39644ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor << QualType(Tag, 0); 39654ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 39664ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 39674ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 3968e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 3969fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 3970fe6b2d481d91140923f4541f273b253291884214Douglas Gregor const PartialDiagnostic &PD) { 3971fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PD, 3972fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 3973fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 3974fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 3975fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 3976fe6b2d481d91140923f4541f273b253291884214Douglas Gregor unsigned DiagID) { 3977fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PDiag(DiagID), 3978fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 3979fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 3980fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 3981465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Retrieve a version of the type 'T' that is elaborated by Keyword 3982465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// and qualified by the nested-name-specifier contained in SS. 3983465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraQualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, 3984465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara const CXXScopeSpec &SS, QualType T) { 3985465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (T.isNull()) 3986e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 3987465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS; 3988e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (SS.isValid()) 3989465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 3990465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara else { 3991465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (Keyword == ETK_None) 3992465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T; 3993465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = 0; 3994465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 3995465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return Context.getElaboratedType(Keyword, NNS, T); 3996e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 3997af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 39982a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildTypeofExprType(Expr *E, SourceLocation Loc) { 3999fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 40002a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 40012a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 40022a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 40032b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian if (!E->isTypeDependent()) { 40042b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian QualType T = E->getType(); 4005aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian if (const TagType *TT = T->getAs<TagType>()) 4006aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian DiagnoseUseOfDecl(TT->getDecl(), E->getExprLoc()); 40072b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian } 4008af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 4009af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 4010af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 40112a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildDecltypeType(Expr *E, SourceLocation Loc) { 4012fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 40132a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 40142a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 40154b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 4016af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getDecltypeType(E); 4017af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 4018ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 4019ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean HuntQualType Sema::BuildUnaryTransformType(QualType BaseType, 4020ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::UTTKind UKind, 4021ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt SourceLocation Loc) { 4022ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt switch (UKind) { 4023ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case UnaryTransformType::EnumUnderlyingType: 4024ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType() && !BaseType->isEnumeralType()) { 4025ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Diag(Loc, diag::err_only_enums_have_underlying_types); 4026ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return QualType(); 4027ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } else { 4028ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType Underlying = BaseType; 4029ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType()) { 4030ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt EnumDecl *ED = BaseType->getAs<EnumType>()->getDecl(); 4031ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(ED && "EnumType has no EnumDecl"); 4032ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DiagnoseUseOfDecl(ED, Loc); 4033ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Underlying = ED->getIntegerType(); 4034ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4035ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(!Underlying.isNull()); 4036ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return Context.getUnaryTransformType(BaseType, Underlying, 4037ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType); 4038ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4039ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4040ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt llvm_unreachable("unknown unary transform type"); 4041ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt} 4042