SemaType.cpp revision 9e876876afc13aa671cc11a17c19907c599b9ab9
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" 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 17a8f32e0965ee19ecc53cd796e34268377a20357cDouglas Gregor#include "clang/AST/CXXInheritance.h" 18980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 192943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor#include "clang/AST/DeclTemplate.h" 204adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 2151bd803fbdade51d674598ed45da3d54190a656cJohn McCall#include "clang/AST/TypeLocVisitor.h" 22e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 2391a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson#include "clang/Basic/PartialDiagnostic.h" 24d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis#include "clang/Basic/TargetInfo.h" 2519510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 264994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl#include "llvm/ADT/SmallPtrSet.h" 2787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor#include "llvm/Support/ErrorHandling.h" 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 302dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor/// \brief Perform adjustment on the parameter type of a function. 312dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor/// 322dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor/// This routine adjusts the given parameter type @p T to the actual 331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter type used by semantic analysis (C99 6.7.5.3p[7,8], 341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ [dcl.fct]p3). The adjusted parameter type is returned. 352dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas GregorQualType Sema::adjustParameterType(QualType T) { 362dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // C99 6.7.5.3p7: 37778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // A declaration of a parameter as "array of type" shall be 38778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // adjusted to "qualified pointer to type", where the type 39778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // qualifiers (if any) are those specified within the [ and ] of 40778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // the array type derivation. 41778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner if (T->isArrayType()) 422dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return Context.getArrayDecayedType(T); 43778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner 44778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // C99 6.7.5.3p8: 45778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // A declaration of a parameter as "function returning type" 46778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // shall be adjusted to "pointer to function returning type", as 47778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // in 6.3.2.1. 48778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner if (T->isFunctionType()) 492dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return Context.getPointerType(T); 502dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 512dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return T; 522dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor} 532dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 545db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 555db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 565db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// isOmittedBlockReturnType - Return true if this declarator is missing a 575db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// return type because this is a omitted return type on a block literal. 588ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redlstatic bool isOmittedBlockReturnType(const Declarator &D) { 595db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getContext() != Declarator::BlockLiteralContext || 608ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl D.getDeclSpec().hasTypeSpecifier()) 615db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 625db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 635db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 0) 64a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^{ ... } 655db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 665db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 1 && 675db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner D.getTypeObject(0).Kind == DeclaratorChunk::Function) 68a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^(int X, float Y) { ... } 695db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 705db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 715db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner} 725db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 73711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// objc_gc applies to Objective-C pointers or, otherwise, to the 74711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// smallest available pointer type (i.e. 'void*' in 'void**'). 75711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define OBJC_POINTER_TYPE_ATTRS_CASELIST \ 76711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_objc_gc 77711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 78711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// Function type attributes. 79711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define FUNCTION_TYPE_ATTRS_CASELIST \ 80711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_noreturn: \ 81711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: \ 82711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: \ 83711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: \ 84711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: \ 85711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: \ 86711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_regparm 87711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 88711c52bb20d0c69063b52a99826fb7d2835501f1John McCallnamespace { 89711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// An object which stores processing state for the entire 90711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// GetTypeForDeclarator process. 91711c52bb20d0c69063b52a99826fb7d2835501f1John McCall class TypeProcessingState { 92711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &sema; 93711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 94711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The declarator being processed. 95711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator; 96711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 97711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The index of the declarator chunk we're currently processing. 98711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// May be the total number of valid chunks, indicating the 99711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// DeclSpec. 100711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex; 101711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Whether there are non-trivial modifications to the decl spec. 103711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool trivial; 104711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 105711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The original set of attributes on the DeclSpec. 106711c52bb20d0c69063b52a99826fb7d2835501f1John McCall llvm::SmallVector<AttributeList*, 2> savedAttrs; 107711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 108711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// A list of attributes to diagnose the uselessness of when the 109711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// processing is complete. 110711c52bb20d0c69063b52a99826fb7d2835501f1John McCall llvm::SmallVector<AttributeList*, 2> ignoredTypeAttrs; 111711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 112711c52bb20d0c69063b52a99826fb7d2835501f1John McCall public: 113711c52bb20d0c69063b52a99826fb7d2835501f1John McCall TypeProcessingState(Sema &sema, Declarator &declarator) 114711c52bb20d0c69063b52a99826fb7d2835501f1John McCall : sema(sema), declarator(declarator), 115711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex(declarator.getNumTypeObjects()), 116711c52bb20d0c69063b52a99826fb7d2835501f1John McCall trivial(true) {} 117711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 118711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &getSema() const { 119711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return sema; 120711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 121711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 122711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &getDeclarator() const { 123711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator; 124711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 125711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 126711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned getCurrentChunkIndex() const { 127711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return chunkIndex; 128711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 129711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 130711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void setCurrentChunkIndex(unsigned idx) { 131711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(idx <= declarator.getNumTypeObjects()); 132711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex = idx; 133711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 134711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 135711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&getCurrentAttrListRef() const { 136711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(chunkIndex <= declarator.getNumTypeObjects()); 137711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (chunkIndex == declarator.getNumTypeObjects()) 138711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return getMutableDeclSpec().getAttributes().getListRef(); 139711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator.getTypeObject(chunkIndex).getAttrListRef(); 140711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 141711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 142711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Save the current set of attributes on the DeclSpec. 143711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void saveDeclSpecAttrs() { 144711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't try to save them multiple times. 145711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!savedAttrs.empty()) return; 146711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 147711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &spec = getMutableDeclSpec(); 148711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (AttributeList *attr = spec.getAttributes().getList(); attr; 149711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr = attr->getNext()) 150711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.push_back(attr); 151711c52bb20d0c69063b52a99826fb7d2835501f1John McCall trivial &= savedAttrs.empty(); 152711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 153711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 154711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Record that we had nowhere to put the given type attribute. 155711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// We will diagnose such attributes later. 156711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void addIgnoredTypeAttr(AttributeList &attr) { 157711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ignoredTypeAttrs.push_back(&attr); 158711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 159711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 160711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Diagnose all the ignored type attributes, given that the 161711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// declarator worked out to the given type. 162711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void diagnoseIgnoredTypeAttrs(QualType type) const { 163711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (llvm::SmallVectorImpl<AttributeList*>::const_iterator 164711c52bb20d0c69063b52a99826fb7d2835501f1John McCall i = ignoredTypeAttrs.begin(), e = ignoredTypeAttrs.end(); 165711c52bb20d0c69063b52a99826fb7d2835501f1John McCall i != e; ++i) { 166711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr = **i; 167711c52bb20d0c69063b52a99826fb7d2835501f1John McCall getSema().Diag(attr.getLoc(), diag::warn_function_attribute_wrong_type) 168711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << attr.getName() << type; 169711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 170711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 171711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 172711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ~TypeProcessingState() { 173711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (trivial) return; 174711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 175711c52bb20d0c69063b52a99826fb7d2835501f1John McCall restoreDeclSpecAttrs(); 176711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 177711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 178711c52bb20d0c69063b52a99826fb7d2835501f1John McCall private: 179711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &getMutableDeclSpec() const { 180711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return const_cast<DeclSpec&>(declarator.getDeclSpec()); 181711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 182711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 183711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void restoreDeclSpecAttrs() { 184711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(!savedAttrs.empty()); 185711c52bb20d0c69063b52a99826fb7d2835501f1John McCall getMutableDeclSpec().getAttributes().set(savedAttrs[0]); 186711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = savedAttrs.size() - 1; i != e; ++i) 187711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs[i]->setNext(savedAttrs[i+1]); 188711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.back()->setNext(0); 189711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 190711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 191711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 192711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Basically std::pair except that we really want to avoid an 193711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// implicit operator= for safety concerns. It's also a minor 194711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// link-time optimization for this to be a private type. 195711c52bb20d0c69063b52a99826fb7d2835501f1John McCall struct AttrAndList { 196711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The attribute. 197711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &first; 198711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 199711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The head of the list the attribute is currently in. 200711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&second; 201711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 202711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttrAndList(AttributeList &attr, AttributeList *&head) 203711c52bb20d0c69063b52a99826fb7d2835501f1John McCall : first(attr), second(head) {} 204711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 20504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 20604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 207711c52bb20d0c69063b52a99826fb7d2835501f1John McCallnamespace llvm { 208711c52bb20d0c69063b52a99826fb7d2835501f1John McCall template <> struct isPodLike<AttrAndList> { 209711c52bb20d0c69063b52a99826fb7d2835501f1John McCall static const bool value = true; 210711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 211711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 212711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 213711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrIntoList(AttributeList &attr, AttributeList *&head) { 214711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setNext(head); 215711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = &attr; 216711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 217711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 218711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrOutOfList(AttributeList &attr, AttributeList *&head) { 219711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (head == &attr) { 220711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = attr.getNext(); 221711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 22204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 223711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 224711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *cur = head; 225711c52bb20d0c69063b52a99826fb7d2835501f1John McCall while (true) { 226711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(cur && cur->getNext() && "ran out of attrs?"); 227711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (cur->getNext() == &attr) { 228711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur->setNext(attr.getNext()); 229711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 230711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 231711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur = cur->getNext(); 232711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 233711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 234711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 235711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void moveAttrFromListToList(AttributeList &attr, 236711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&fromList, 237711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&toList) { 238711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, fromList); 239711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrIntoList(attr, toList); 240711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 241711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 242711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, 243711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type, bool isDeclSpec, 244711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attrs); 245711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 246711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 247711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 248711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type); 249711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 250711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 251711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type); 252711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 253711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCPointerTypeAttr(TypeProcessingState &state, 254711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type) { 255711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Right now, we have exactly one of these attributes: objc_gc. 256711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(attr.getKind() == AttributeList::AT_objc_gc); 257711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return handleObjCGCTypeAttr(state, attr, type); 258711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 259711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 260711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Given that an objc_gc attribute was written somewhere on a 261711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declaration *other* than on the declarator itself (for which, use 262711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributeObjCPointerTypeAttrFromDeclarator), and given that it 263711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// didn't apply in whatever position it was written in, try to move 264711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// it to a more appropriate position. 265711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeObjCPointerTypeAttr(TypeProcessingState &state, 266711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 267711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 268711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 269711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 270711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 271711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 272711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 273711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 274711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 275711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunk.getAttrListRef()); 276711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 277711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 278711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 279711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 280711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 281711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 282711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't walk through these. 283711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 284711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 285711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 286711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto error; 287711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 288711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 289711c52bb20d0c69063b52a99826fb7d2835501f1John McCall error: 290711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 291711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.getSema().Diag(attr.getLoc(), diag::warn_function_attribute_wrong_type) 292711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << attr.getName() << type; 293711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 294711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 295711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Distribute an objc_gc type attribute that was written on the 296711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator. 297711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 298711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeObjCPointerTypeAttrFromDeclarator(TypeProcessingState &state, 299711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 300711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 301711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 302711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 303711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // objc_gc goes on the innermost pointer to something that's not a 304711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // pointer. 305711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned innermost = -1U; 306711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool considerDeclSpec = true; 307711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 308711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 309711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 310711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 311711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 312711c52bb20d0c69063b52a99826fb7d2835501f1John McCall innermost = i; 313ae278a3a57595349a411f6474938d4dd1b263a0eJohn McCall continue; 314711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 315711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 316711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 317711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 318711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 319711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 320711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 321711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 322711c52bb20d0c69063b52a99826fb7d2835501f1John McCall considerDeclSpec = false; 323711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto done; 324711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 325711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 326711c52bb20d0c69063b52a99826fb7d2835501f1John McCall done: 327711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 328711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // That might actually be the decl spec if we weren't blocked by 329711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // anything in the declarator. 330711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (considerDeclSpec) { 331711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (handleObjCPointerTypeAttr(state, attr, declSpecType)) 332711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 333711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 334711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 335711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, if we found an appropriate chunk, splice the attribute 336711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // into it. 337711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (innermost != -1U) { 338711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, declarator.getAttrListRef(), 339711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getTypeObject(innermost).getAttrListRef()); 340711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 341711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 342711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 343711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, diagnose when we're done building the type. 344711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 345711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 346711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 347711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 348711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written somewhere in a declaration 349711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// *other* than on the declarator itself or in the decl spec. Given 350711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// that it didn't apply in whatever position it was written in, try 351711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// to move it to a more appropriate position. 352711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeFunctionTypeAttr(TypeProcessingState &state, 353711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 354711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 355711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 356711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 357711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to push the attribute from the return type of a function to 358711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the function itself. 359711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 360711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 361711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 362711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 363711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 364711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunk.getAttrListRef()); 365711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 366711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 367711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 368711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 369711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 370711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 371711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 372711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 373711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 374711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 375711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 376711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 377711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.getSema().Diag(attr.getLoc(), diag::warn_function_attribute_wrong_type) 378711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << attr.getName() << type; 379711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 380711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 381711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Try to distribute a function type attribute to the innermost 382711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// function chunk or type. Returns true if the attribute was 383711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributed, false if no location was found. 384711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool 385711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrToInnermost(TypeProcessingState &state, 386711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 387711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&attrList, 388711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 389711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 390711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 391711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Put it on the innermost function chunk, if there is one. 392711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 393711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 394711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (chunk.Kind != DeclaratorChunk::Function) continue; 395711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 396711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, attrList, chunk.getAttrListRef()); 397711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 398711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 399711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 400711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return handleFunctionTypeAttr(state, attr, declSpecType); 401711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 402711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 403711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written in the decl spec. Try to 404711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 405711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 406711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclSpec(TypeProcessingState &state, 407711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 408711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 409711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.saveDeclSpecAttrs(); 410711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 411711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 412711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 413711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.getCurrentAttrListRef(), 414711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 415711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 416711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 417711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 418711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 419711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 420711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 421711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 422711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written on the declarator. Try to 423711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 424711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 425711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclarator(TypeProcessingState &state, 426711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 427711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 428711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 429711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 430711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 431711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 432711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getAttrListRef(), 433711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 434711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 435711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 436711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 437711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 438711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 439711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 440711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 441711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 442711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// \brief Given that there are attributes written on the declarator 443711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// itself, try to distribute any type attributes to the appropriate 444711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator chunk. 445711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// 446711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// These are attributes like the following: 447711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f ATTR; 448711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int (f ATTR)(); 449711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// but not necessarily this: 450711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f() ATTR; 451711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeTypeAttrsFromDeclarator(TypeProcessingState &state, 452711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 453711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Collect all the type attributes from the declarator itself. 454711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getDeclarator().getAttributes() && "declarator has no attrs!"); 455711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attr = state.getDeclarator().getAttributes(); 456711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 457711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 458711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr->getNext(); 459711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 460711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr->getKind()) { 461711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 462711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttrFromDeclarator(state, *attr, declSpecType); 463711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 465711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 466711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclarator(state, *attr, declSpecType); 467711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 468711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 469711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: 470711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 471711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 472711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attr = next)); 473711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 474711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 475711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Add a synthetic '()' to a block-literal declarator if it is 476711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// required, given the return type. 477711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void maybeSynthesizeBlockSignature(TypeProcessingState &state, 478711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType declSpecType) { 479711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 480711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 481711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // First, check whether the declarator would produce a function, 482711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // i.e. whether the innermost semantic chunk is a function. 483711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.isFunctionDeclarator()) { 484711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If so, make that declarator a prototyped declarator. 485711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getFunctionTypeInfo().hasPrototype = true; 486711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 487711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 488711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 489da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // If there are any type objects, the type as written won't name a 490da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // function, regardless of the decl spec type. This is because a 491da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // block signature declarator is always an abstract-declarator, and 492da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // abstract-declarators can't just be parentheses chunks. Therefore 493da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // we need to build a function chunk unless there are no type 494da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // objects and the decl spec type is a function. 495711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!declarator.getNumTypeObjects() && declSpecType->isFunctionType()) 496711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 497711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 498da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // Note that there *are* cases with invalid declarators where 499da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // declarators consist solely of parentheses. In general, these 500da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // occur only in failed efforts to make function declarators, so 501da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // faking up the function chunk is still the right thing to do. 502711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 503711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, we need to fake up a function declarator. 504711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation loc = declarator.getSourceRange().getBegin(); 505711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 506711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // ...and *prepend* it to the declarator. 507711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.AddInnermostTypeInfo(DeclaratorChunk::getFunction( 508711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ParsedAttributes(), 509711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*proto*/ true, 510711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*variadic*/ false, SourceLocation(), 511711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*args*/ 0, 0, 512711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*type quals*/ 0, 51383f51722ed2b8134810cb178f39e44da811de7cdDouglas Gregor /*ref-qualifier*/true, SourceLocation(), 514711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*EH*/ false, SourceLocation(), false, 0, 0, 0, 515711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*parens*/ loc, loc, 516711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator)); 517711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 518711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // For consistency, make sure the state still has us as processing 519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the decl spec. 520711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getCurrentChunkIndex() == declarator.getNumTypeObjects() - 1); 521711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(declarator.getNumTypeObjects()); 52204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 52304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 524930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// \brief Convert the specified declspec to the appropriate type 525930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// object. 5265db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// \param D the declarator containing the declaration specifier. 5275153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// \returns The type described by the declaration specifiers. This function 5285153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// never returns null. 529711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic QualType ConvertDeclSpecToType(Sema &S, TypeProcessingState &state) { 5305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: Should move the logic from DeclSpec::Finish to here for validity 5315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // checking. 532711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 533711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 534711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const DeclSpec &DS = declarator.getDeclSpec(); 535711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation DeclLoc = declarator.getIdentifierLoc(); 5365db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (DeclLoc.isInvalid()) 5375db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner DeclLoc = DS.getSourceRange().getBegin(); 5381564e3906cad604a42bd131e584751a75589a9c4Chris Lattner 539711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ASTContext &Context = S.Context; 5401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5415db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner QualType Result; 5425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecType()) { 54396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner case DeclSpec::TST_void: 54496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Result = Context.VoidTy; 54596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner break; 5465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_char: 5475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 548fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.CharTy; 5495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) 550fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.SignedCharTy; 5515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else { 5525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 5535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Unknown TSS value"); 554fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.UnsignedCharTy; 5555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 556958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 55764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case DeclSpec::TST_wchar: 55864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 55964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.WCharTy; 56064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) { 561711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 562f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 56364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getSignedWCharType(); 56464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } else { 56564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 56664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis "Unknown TSS value"); 567711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 568f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 56964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getUnsignedWCharType(); 57064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } 57164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 572f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char16: 573f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 574f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 575f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char16Ty; 576f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 577f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char32: 578f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 579f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 580f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char32Ty; 581f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 582d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner case DeclSpec::TST_unspecified: 58362f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner // "<proto1,proto2>" is an objc qualified ID with a missing id. 584097e916b617bb4a069a03764024c310ed42a6424Chris Lattner if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 585c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 586c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**)PQ, 587c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 588c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 58962f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner break; 59062f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner } 5915db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 5925db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // If this is a missing declspec in a block literal return context, then it 5935db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // is inferred from the return statements inside the block. 594711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isOmittedBlockReturnType(declarator)) { 5955db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner Result = Context.DependentTy; 5965db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 5975db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 5981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 599d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 600d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 601d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 602d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 603d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 604d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 605d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 606711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().ImplicitInt) { 60735d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 60835d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 6093f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 610711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_declspec) 6113f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 612849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(DS.getSourceRange().getBegin(), "int"); 6133f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 6144310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 615d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 616d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 617d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 618d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 6194310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor // FIXME: Does Microsoft really have the implicit int extension in C++? 620711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().CPlusPlus && 621711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !S.getLangOptions().Microsoft) { 622711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_missing_type_specifier) 6233f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 6241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 625b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 626b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 627b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 628711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 629b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 630711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_type_specifier) 6313f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 632b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 633d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 6341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 6363cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 639fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 640fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 641fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 642311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 643311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 644311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 645311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 646711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!S.getLangOptions().C99 && 647711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !S.getLangOptions().CPlusPlus0x) 648711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 649311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 6505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 6525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 653fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 654fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 655fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 656311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 657311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 658311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 659311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 660711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!S.getLangOptions().C99 && 661711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !S.getLangOptions().CPlusPlus0x) 662711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 663311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 666958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 6673cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 668fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 669958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 670958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 671fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 672958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 673fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 67439d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne 67539d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne if (S.getLangOptions().OpenCL && !S.getOpenCLOptions().cl_khr_fp64) { 67639d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne S.Diag(DS.getTypeSpecTypeLoc(), diag::err_double_requires_fp64); 67739d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne declarator.setInvalidType(true); 67839d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne } 679958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 680fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 6815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 6835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 684711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 6858f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 686711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 6878f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 68899dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 6895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 6915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_struct: { 692b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeDecl *D = dyn_cast_or_null<TypeDecl>(DS.getRepAsDecl()); 6936e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 6946e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 6956e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 696711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 6976e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 6986e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 6996e24726524c2b51b31bb4b622aa678a46b024f42John McCall 700a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 701711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeLoc()); 702a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 704a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 705a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 707a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 7082191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 7092191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall // In C++, make an ElaboratedType. 710711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().CPlusPlus) { 711465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedTypeKeyword Keyword 712465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); 713711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.getElaboratedType(Keyword, DS.getTypeSpecScope(), Result); 7142191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall } 7155153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D->isInvalidDecl()) 716711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 717958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7191a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 723711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 72427940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall if (Result.isNull()) 725711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 72627940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall else if (DeclSpec::ProtocolQualifierListTy PQ 72727940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall = DS.getProtocolQualifiers()) { 728c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *ObjT = Result->getAs<ObjCObjectType>()) { 729c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Silently drop any existing protocol qualifiers. 730c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // TODO: determine whether that's the right thing to do. 731c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjT->getNumProtocols()) 732c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = ObjT->getBaseType(); 733c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 734c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getNumProtocolQualifiers()) 735c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Result, 736c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 737c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 738c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCIdType()) { 739ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 740c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 741c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 742c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 743c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 744c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCClassType()) { 7454262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 746c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy, 747c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 748c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 749c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 7503f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 751711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 7523f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 753711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7543f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 755c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 7561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 758958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 760958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 761e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 762711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 763958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 764730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (!Result->isDependentType()) 765730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (const TagType *TT = Result->getAs<TagType>()) 766711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.DiagnoseUseOfDecl(TT->getDecl(), DS.getTypeSpecTypeLoc()); 767d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 768fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 769958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 770d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 771b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 772d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 773d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 774711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildTypeofExprType(E, DS.getTypeSpecTypeLoc()); 7754b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 7764b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 777711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7784b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 779958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 780d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 7816fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 782b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 7836fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 7846fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 785711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildDecltypeType(E, DS.getTypeSpecTypeLoc()); 786af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 787af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 788711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 789af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 7906fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 7916fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 792e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson case DeclSpec::TST_auto: { 793e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 79434b41d939a1328f484511c6002ba2456db879a29Richard Smith Result = Context.getAutoType(QualType()); 795e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 796e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson } 7971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 798809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 7995153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 800711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8015153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 8025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 804958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 805f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 806711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().Freestanding) 807711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 808fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 80982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 81082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 81182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 812e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::VectorKind VecKind = VectorType::AltiVecVector; 813788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner if (DS.isTypeAltiVecPixel()) 814e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecPixel; 815788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner else if (DS.isTypeAltiVecBool()) 816e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecBool; 817e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson Result = Context.getVectorType(Result, 128/typeSize, VecKind); 818f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 8191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82047423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis // FIXME: Imaginary. 82147423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis if (DS.getTypeSpecComplex() == DeclSpec::TSC_imaginary) 822711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::err_imaginary_not_supported); 8231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 824711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Before we process any type attributes, synthesize a block literal 825711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // function declarator if necessary. 826711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.getContext() == Declarator::BlockLiteralContext) 827711c52bb20d0c69063b52a99826fb7d2835501f1John McCall maybeSynthesizeBlockSignature(state, Result); 828711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 829711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any type attributes from the decl spec. This may cause the 830711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // list of type attributes to be temporarily saved while the type 831711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // attributes are pushed around. 832711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = DS.getAttributes().getList()) 833711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, Result, true, attrs); 8341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 83596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 83696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 83796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 83896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Enforce C99 6.7.3p2: "Types other than pointer types derived from object 83996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // or incomplete types shall not be restrict-qualified." C++ also allows 84096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // restrict-qualified references. 8410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_restrict) { 8422b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isAnyPointerType() || Result->isReferenceType()) { 8432b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian QualType EltTy; 8442b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isObjCObjectPointerType()) 8452b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result; 8462b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian else 8472b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result->isPointerType() ? 8482b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<PointerType>()->getPointeeType() : 8492b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<ReferenceType>()->getPointeeType(); 8501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 851bad0e656c3732e3539a9cd6525de721d7e47408bDouglas Gregor // If we have a pointer or reference, the pointee must have an object 852bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner // incomplete type. 853bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner if (!EltTy->isIncompleteOrObjectType()) { 854711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 855d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_invalid_pointee) 856d162584991885ab004a02573a73ce06422b921fcChris Lattner << EltTy << DS.getSourceRange(); 8570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 858bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } 859bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } else { 860711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 861711c52bb20d0c69063b52a99826fb7d2835501f1John McCall diag::err_typecheck_invalid_restrict_not_pointer) 862d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 8630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 86496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 86596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 8661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 86796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 86896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 86996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 87096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 87196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Get some location to point at, either the C or V location. 87296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner SourceLocation Loc; 8730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 87496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getConstSpecLoc(); 8750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 87696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getVolatileSpecLoc(); 8770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 8780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((TypeQuals & DeclSpec::TQ_restrict) && 8790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Has CVR quals but not C, V, or R?"); 8800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Loc = DS.getRestrictSpecLoc(); 88196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 882711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(Loc, diag::warn_typecheck_function_qualifiers) 883d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 88496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 8851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 886f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 887f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 888f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 889f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 890f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 8911a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 8921a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 893f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 8940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 8950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 8961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 8971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(TypeQuals); 8990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Result = Context.getQualifiedType(Result, Quals); 90096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 902f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 903f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 904f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 905cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 906cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 907cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 9081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 909cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 910cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 911cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 9122865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 9132865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Qs) { 9142865474261a608c7873b87ba4af110d17907896dJohn McCall // Enforce C99 6.7.3p2: "Types other than pointer types derived from 9152865474261a608c7873b87ba4af110d17907896dJohn McCall // object or incomplete types shall not be restrict-qualified." 9162865474261a608c7873b87ba4af110d17907896dJohn McCall if (Qs.hasRestrict()) { 9172865474261a608c7873b87ba4af110d17907896dJohn McCall unsigned DiagID = 0; 9182865474261a608c7873b87ba4af110d17907896dJohn McCall QualType ProblemTy; 9192865474261a608c7873b87ba4af110d17907896dJohn McCall 9202865474261a608c7873b87ba4af110d17907896dJohn McCall const Type *Ty = T->getCanonicalTypeInternal().getTypePtr(); 9212865474261a608c7873b87ba4af110d17907896dJohn McCall if (const ReferenceType *RTy = dyn_cast<ReferenceType>(Ty)) { 9222865474261a608c7873b87ba4af110d17907896dJohn McCall if (!RTy->getPointeeType()->isIncompleteOrObjectType()) { 9232865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 9242865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<ReferenceType>()->getPointeeType(); 9252865474261a608c7873b87ba4af110d17907896dJohn McCall } 9262865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) { 9272865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 9282865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 9292865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 9302865474261a608c7873b87ba4af110d17907896dJohn McCall } 9312865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const MemberPointerType *PTy = dyn_cast<MemberPointerType>(Ty)) { 9322865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 9332865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 9342865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 9352865474261a608c7873b87ba4af110d17907896dJohn McCall } 9362865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (!Ty->isDependentType()) { 9372865474261a608c7873b87ba4af110d17907896dJohn McCall // FIXME: this deserves a proper diagnostic 9382865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 9392865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T; 9402865474261a608c7873b87ba4af110d17907896dJohn McCall } 9412865474261a608c7873b87ba4af110d17907896dJohn McCall 9422865474261a608c7873b87ba4af110d17907896dJohn McCall if (DiagID) { 9432865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(Loc, DiagID) << ProblemTy; 9442865474261a608c7873b87ba4af110d17907896dJohn McCall Qs.removeRestrict(); 9452865474261a608c7873b87ba4af110d17907896dJohn McCall } 9462865474261a608c7873b87ba4af110d17907896dJohn McCall } 9472865474261a608c7873b87ba4af110d17907896dJohn McCall 9482865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getQualifiedType(T, Qs); 9492865474261a608c7873b87ba4af110d17907896dJohn McCall} 9502865474261a608c7873b87ba4af110d17907896dJohn McCall 951075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// \brief Build a paren type including \p T. 952075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo BagnaraQualType Sema::BuildParenType(QualType T) { 953075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara return Context.getParenType(T); 954075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara} 955075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 956cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 957cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 958cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 959cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 960cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 961cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 962cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 963cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 964cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 965cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 966cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 967cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 968cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 9692865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildPointerType(QualType T, 970cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 971cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 972cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 973cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 974ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 975cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 976cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 977cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 978c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); 97992e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 980cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 9812865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getPointerType(T); 982cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 983cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 984cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 985cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 986cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 987cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 988cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 989cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 990cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 991cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 992cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 993cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 994cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 995cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 996cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 99754e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 9982865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 99954e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 100069d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // C++0x [dcl.ref]p6: 100169d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // If a typedef (7.1.3), a type template-parameter (14.3.1), or a 100269d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // decltype-specifier (7.1.6.2) denotes a type TR that is a reference to a 100369d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // type T, an attempt to create the type "lvalue reference to cv TR" creates 100469d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // the type "lvalue reference to T", while an attempt to create the type 100569d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // "rvalue reference to cv TR" creates the type TR. 100654e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 100754e14c4db764c0636160d26c5bbf491637c83a76John McCall 100854e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 100954e14c4db764c0636160d26c5bbf491637c83a76John McCall // 101054e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 101154e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 101254e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 101354e14c4db764c0636160d26c5bbf491637c83a76John McCall // 101454e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 101554e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 101654e14c4db764c0636160d26c5bbf491637c83a76John McCall // 101754e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 101854e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 101969d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // collapsing of references-to-references as described in C++0x. 102069d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // DR 106 and 540 introduce reference-collapsing into C++98/03. 1021cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1022cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 102333a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 1024cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 1025cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 1026cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 1027cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1028cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1029cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1030cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 10317c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 10322865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getLValueReferenceType(T, SpelledAsLValue); 10332865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getRValueReferenceType(T); 1034cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1035cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1036cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 1037cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1038cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 1039cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1040cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 10411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 10421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 1043cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1044cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1045cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// array type or, if there is no such entity, the location of the 1046cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have array type. 1047cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1048cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 1049cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1050cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1051cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 1052cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 1053cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 1054cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 10557e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 10560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10577e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 1058923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (getLangOptions().CPlusPlus) { 1059138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 1060138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 1061138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // type, the (possibly cv-qualified) type void, a function type or an 1062138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 1063138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 1064138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 1065138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 1066138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 1067138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 1068138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1069138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 1070138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1071923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (T->isVoidType()) { 1072923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 1073923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1074923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1075138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1076138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (RequireNonAbstractType(Brackets.getBegin(), T, 1077138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 1078138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1079138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1080923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 1081138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 1082138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 1083923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 1084923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 1085923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1086923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1087cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1088cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 1089cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 1090ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1091cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1092cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 10931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 109434b41d939a1328f484511c6002ba2456db879a29Richard Smith if (T->getContainedAutoType()) { 109534b41d939a1328f484511c6002ba2456db879a29Richard Smith Diag(Loc, diag::err_illegal_decl_array_of_auto) 109634b41d939a1328f484511c6002ba2456db879a29Richard Smith << getPrintableNameForEntity(Entity) << T; 1097e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson return QualType(); 1098e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson } 10991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11006217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 1101cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 1102cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 1103cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 1104cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 1105c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (T->isObjCObjectType()) { 1106c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 1107c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 1108cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 11091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11105e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // Do lvalue-to-rvalue conversions on the array size expression. 11115e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall if (ArraySize && !ArraySize->isRValue()) 11125e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall DefaultLvalueConversion(ArraySize); 11135e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall 1114cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 11155e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // TODO: in theory, if we were insane, we could allow contextual 11165e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // conversions to integer type here. 1117cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (ArraySize && !ArraySize->isTypeDependent() && 11181274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1119cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1120cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 1121cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1122cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 11232767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor llvm::APSInt ConstVal(Context.getTypeSize(Context.getSizeType())); 1124cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 1125f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 11267e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 1127f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 1128f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 1129ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()) { 11307e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 1131cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else if (!ArraySize->isIntegerConstantExpr(ConstVal, Context) || 1132923d56d436f750bc1f29db50e641078725558a1bSebastian Redl (!T->isDependentType() && !T->isIncompleteType() && 1133923d56d436f750bc1f29db50e641078725558a1bSebastian Redl !T->isConstantSizeType())) { 1134cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Per C99, a variable array is an array with either a non-constant 1135cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // size or an element type that has a non-constant-size 11367e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 1137cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 1138cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 1139cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 1140923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 1141b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth if (Entity) 1142b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_decl_negative_array_size) 1143b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << getPrintableNameForEntity(Entity) << ArraySize->getSourceRange(); 1144b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth else 1145b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_typecheck_negative_array_size) 1146b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << ArraySize->getSourceRange(); 1147923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1148923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1149923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 115002024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 115102024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 115202024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor Diag(ArraySize->getLocStart(), 115302024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 115402024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 1155923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 11562767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor } else if (!T->isDependentType() && !T->isVariablyModifiedType() && 11572767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor !T->isIncompleteType()) { 11582767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor // Is the array too large? 11592767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor unsigned ActiveSizeBits 11602767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor = ConstantArrayType::getNumAddressingBits(Context, T, ConstVal); 11612767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) 11622767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_too_large) 11632767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ConstVal.toString(10) 11642767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ArraySize->getSourceRange(); 11651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 11662767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 116746a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 1168cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1169af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 1170af40776922bc5c28e740adb0342faa09f35b0068David Chisnall if (!getLangOptions().C99) { 11710fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor if (T->isVariableArrayType()) { 11720fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Prohibit the use of non-POD types in VLAs. 1173204ce17e0cfd9bbe229627e1e5a20c3f2f587c8cDouglas Gregor if (!T->isDependentType() && 1174204ce17e0cfd9bbe229627e1e5a20c3f2f587c8cDouglas Gregor !Context.getBaseElementType(T)->isPODType()) { 11750fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::err_vla_non_pod) 11760fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor << Context.getBaseElementType(T); 11770fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor return QualType(); 11780fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } 1179a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor // Prohibit the use of VLAs during template argument deduction. 1180a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor else if (isSFINAEContext()) { 1181a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor Diag(Loc, diag::err_vla_in_sfinae); 1182a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor return QualType(); 1183a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor } 11840fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Just extwarn about VLAs. 11850fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor else 11860fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::ext_vla); 11870fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } else if (ASM != ArrayType::Normal || Quals != 0) 1188043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor Diag(Loc, 1189043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor getLangOptions().CPlusPlus? diag::err_c99_array_usage_cxx 1190043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor : diag::ext_c99_array_usage); 1191cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1192cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1193cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 1194cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 11959cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 11969cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 11979cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 11989cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 11999ae2f076ca5ab1feb3ba95629099ec2319833701John McCallQualType Sema::BuildExtVectorType(QualType T, Expr *ArraySize, 12009cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 12019cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 12029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 12031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 12049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 12059cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 12069cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 12079cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 12089cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 12099ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isTypeDependent() && !ArraySize->isValueDependent()) { 12109cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 12119ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isIntegerConstantExpr(vecSize, Context)) { 12129cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_argument_not_int) 12139ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << "ext_vector_type" << ArraySize->getSourceRange(); 12149cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 12159cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 12161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 12189cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 12191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 12201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12219cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 12229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 12239ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << ArraySize->getSourceRange(); 12249cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 12259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 12261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12279cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T->isDependentType()) 12289cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return Context.getExtVectorType(T, vectorSize); 12291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 12301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12319ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Context.getDependentSizedExtVectorType(T, ArraySize, AttrLoc); 12329cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 12331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1234724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \brief Build a function type. 1235724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1236724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// This routine checks the function type according to C++ rules and 1237724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// under the assumption that the result type and parameter types have 1238724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// just been instantiated from a template. It therefore duplicates 12392943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor/// some of the behavior of GetTypeForDeclarator, but in a much 1240724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// simpler form that is only suitable for this narrow use case. 1241724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1242724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param T The return type of the function. 1243724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1244724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param ParamTypes The parameter types of the function. This array 1245724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// will be modified to account for adjustments to the types of the 1246724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function parameters. 1247724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1248724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param NumParamTypes The number of parameter types in ParamTypes. 1249724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1250724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Variadic Whether this is a variadic function type. 1251724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1252724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the function type. 1253724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1254724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Loc The location of the entity whose type involves this 1255724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function type or, if there is no such entity, the location of the 1256724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type that will have function type. 1257724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1258724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Entity The name of the entity that involves the function 1259724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type, if known. 1260724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1261724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \returns A suitable function type, if there are no 1262724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// errors. Otherwise, returns a NULL type. 1263724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas GregorQualType Sema::BuildFunctionType(QualType T, 12641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType *ParamTypes, 1265724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor unsigned NumParamTypes, 1266724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Variadic, unsigned Quals, 1267c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RefQualifierKind RefQualifier, 1268fa869547eb1cab12d7e0c0dfa8ba594e336b9b32Eli Friedman SourceLocation Loc, DeclarationName Entity, 1269e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionType::ExtInfo Info) { 1270724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 127158408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(Loc, diag::err_func_returning_array_function) 127258408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1273724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1274724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 12755291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor 1276724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 1277724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor for (unsigned Idx = 0; Idx < NumParamTypes; ++Idx) { 12782dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor QualType ParamType = adjustParameterType(ParamTypes[Idx]); 12792dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 1280724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 1281724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 1282724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1283cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 128454e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 1285724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1286724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1287724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 1288724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1289724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1290e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 1291e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = Variadic; 1292e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = Quals; 1293c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = RefQualifier; 1294e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.ExtInfo = Info; 1295e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 1296e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall return Context.getFunctionType(T, ParamTypes, NumParamTypes, EPI); 1297724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 12981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1299949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 1300949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1301949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 1302949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 13030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR Qualifiers applied to the member pointer type 1304949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 1305949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 1306949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1307949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 1308949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 13091eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 13102865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 1311949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 1312949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 1313949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 1314949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 1315949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 1316949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1317949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 1318949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 1319949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1320949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 1321949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 1322949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 1323949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1324949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1325737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // C++ 8.3.3p3: A pointer to member shall not point to ... a member 1326949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 1327949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 13288d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 1329ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 1330949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1331949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1332949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1333949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 1334949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 1335949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 1336949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1337949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1338949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1339949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 1340949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 1341949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1342949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1343949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1344d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // In the Microsoft ABI, the class is allowed to be an incomplete 1345d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // type. In such cases, the compiler makes a worst-case assumption. 1346d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // We make no such assumption right now, so emit an error if the 1347d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // class isn't a complete type. 134820cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis if (Context.Target.getCXXABI() == CXXABI_Microsoft && 1349d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis RequireCompleteType(Loc, Class, diag::err_incomplete_type)) 1350d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis return QualType(); 1351d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis 13522865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getMemberPointerType(T, Class.getTypePtr()); 1353949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 13541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13559a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 13569a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 13579a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 13589a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 13590953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR The cvr-qualifiers to be applied to the block pointer type. 13609a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 13619a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Loc The location of the entity whose type involves this 13629a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// block pointer type or, if there is no such entity, the location of the 13639a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type that will have block pointer type. 13649a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 13659a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 13669a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 13679a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 13689a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 13699a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 13702865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildBlockPointerType(QualType T, 13711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 13729a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 13730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 13749a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 13759a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 13769a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 13771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13782865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getBlockPointerType(T); 13799a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 13809a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 1381b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallQualType Sema::GetTypeFromParser(ParsedType Ty, TypeSourceInfo **TInfo) { 1382b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = Ty.get(); 13833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 1384a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 13853f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 13863f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 13873f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1388a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 1389f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 1390e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 1391a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 1392e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 13931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1394a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 1395e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 1396e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 1397e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 1398d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruthstatic void DiagnoseIgnoredQualifiers(unsigned Quals, 1399d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation ConstQualLoc, 1400d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation VolatileQualLoc, 1401d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation RestrictQualLoc, 1402d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth Sema& S) { 1403d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth std::string QualStr; 1404d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth unsigned NumQuals = 0; 1405d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation Loc; 1406d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1407d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint ConstFixIt; 1408d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint VolatileFixIt; 1409d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint RestrictFixIt; 1410d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1411d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // FIXME: The locations here are set kind of arbitrarily. It'd be nicer to 1412d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // find a range and grow it to encompass all the qualifiers, regardless of 1413d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // the order in which they textually appear. 1414d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Const) { 1415d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ConstFixIt = FixItHint::CreateRemoval(ConstQualLoc); 1416d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth Loc = ConstQualLoc; 1417d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ++NumQuals; 1418d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth QualStr = "const"; 1419d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1420d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Volatile) { 1421d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth VolatileFixIt = FixItHint::CreateRemoval(VolatileQualLoc); 1422d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (NumQuals == 0) { 1423d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth Loc = VolatileQualLoc; 1424d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth QualStr = "volatile"; 1425d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } else { 1426d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth QualStr += " volatile"; 1427d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1428d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ++NumQuals; 1429d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1430d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Restrict) { 1431d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth RestrictFixIt = FixItHint::CreateRemoval(RestrictQualLoc); 1432d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (NumQuals == 0) { 1433d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth Loc = RestrictQualLoc; 1434d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth QualStr = "restrict"; 1435d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } else { 1436d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth QualStr += " restrict"; 1437d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1438d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ++NumQuals; 1439d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1440d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1441d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(NumQuals > 0 && "No known qualifiers?"); 1442d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1443d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth S.Diag(Loc, diag::warn_qual_return_type) 1444d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth << QualStr << NumQuals 1445d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth << ConstFixIt << VolatileFixIt << RestrictFixIt; 1446d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth} 1447d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 144898eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump/// GetTypeForDeclarator - Convert the type for the specified 14498ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl/// declarator to Type instances. 1450402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// 1451402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// If OwnedDecl is non-NULL, and this declarator's decl-specifier-seq 1452402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// owns the declaration of a type (e.g., the definition of a struct 1453402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// type), then *OwnedDecl will receive the owned declaration. 1454bf1a028246d884a540aeafa38e89be59a269b072John McCall/// 1455bf1a028246d884a540aeafa38e89be59a269b072John McCall/// The result of this call will never be null, but the associated 1456bf1a028246d884a540aeafa38e89be59a269b072John McCall/// type may be a null type if there's an unrecoverable error. 1457bf1a028246d884a540aeafa38e89be59a269b072John McCallTypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S, 145834b41d939a1328f484511c6002ba2456db879a29Richard Smith TagDecl **OwnedDecl, 145934b41d939a1328f484511c6002ba2456db879a29Richard Smith bool AutoAllowedInTypeName) { 1460930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Determine the type of the declarator. Not all forms of declarator 1461930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // have a type. 1462930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 146305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo = 0; 1464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1465711c52bb20d0c69063b52a99826fb7d2835501f1John McCall TypeProcessingState state(*this, D); 146604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 14673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 14683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 14693f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 14700486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 14713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 1472711c52bb20d0c69063b52a99826fb7d2835501f1John McCall T = ConvertDeclSpecToType(*this, state); 14735db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 1474591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 1475b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl* Owned = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 1476b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor // Owned is embedded if it was defined here, or if it is the 1477b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor // very first (i.e., canonical) declaration of this tag type. 1478b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor Owned->setEmbeddedInDeclarator(Owned->isDefinition() || 1479b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor Owned->isCanonicalDecl()); 1480591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (OwnedDecl) *OwnedDecl = Owned; 1481591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 1482930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 1483930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 14843f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 14850efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 14863f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 1487930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 148848026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // "void" instead. 1489930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor T = Context.VoidTy; 1490930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 149148026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 149248026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 149348026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 149448026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 149505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor T = GetTypeFromParser(D.getName().ConversionFunctionId, 1496bf1a028246d884a540aeafa38e89be59a269b072John McCall &ReturnTypeInfo); 149748026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 1498930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 1499dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor 1500711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (D.getAttributes()) 1501711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeTypeAttrsFromDeclarator(state, T); 1502711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1503e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C++0x [dcl.spec.auto]p5: reject 'auto' if it is not in an allowed context. 15048110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // In C++0x, a function declarator using 'auto' must have a trailing return 15058110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // type (this is checked later) and we can skip this. In other languages 15068110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // using auto, we need to check regardless. 150734b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 15088110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith (!getLangOptions().CPlusPlus0x || !D.isFunctionDeclarator())) { 1509baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 15101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1511baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 1512baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 1513baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson assert(0 && "K&R type lists aren't allowed in C++"); 1514baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1515baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 1516baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 0; // Function prototype 1517baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1518baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 1519baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (cast<TagDecl>(CurContext)->getTagKind()) { 1520465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Enum: assert(0 && "unhandled tag kind"); break; 1521465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Struct: Error = 1; /* Struct member */ break; 1522465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Union: Error = 2; /* Union member */ break; 1523465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Class: Error = 3; /* Class member */ break; 15241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1525baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1526baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 1527baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 4; // Exception declaration 1528baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1529baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 1530baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 5; // Template parameter 1531baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1532baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 153334b41d939a1328f484511c6002ba2456db879a29Richard Smith Error = 6; // Block literal 153434b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 153534b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TemplateTypeArgContext: 153634b41d939a1328f484511c6002ba2456db879a29Richard Smith Error = 7; // Template type argument 153734b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 153834b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TypeNameContext: 153934b41d939a1328f484511c6002ba2456db879a29Richard Smith if (!AutoAllowedInTypeName) 15408110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith Error = 10; // Generic 1541baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1542baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 1543baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 1544baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 1545baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 1546baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1547baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1548baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 1549ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 1550ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith Error = 8; 1551ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith 15528110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // In Objective-C it is an error to use 'auto' on a function declarator. 15538110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith if (D.isFunctionDeclarator()) 15548110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith Error = 9; 15558110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith 1556e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C++0x [dcl.spec.auto]p2: 'auto' is always fine if the declarator 1557e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // contains a trailing return type. That is only legal at the outermost 1558e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // level. Check all declarator chunks (outermost first) anyway, to give 1559e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // better diagnostics. 15608110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith if (getLangOptions().CPlusPlus0x && Error != -1) { 1561e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 1562e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned chunkIndex = e - i - 1; 1563e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith state.setCurrentChunkIndex(chunkIndex); 1564e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 1565e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (DeclType.Kind == DeclaratorChunk::Function) { 1566e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 1567e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (FTI.TrailingReturnType) { 1568e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith Error = -1; 1569e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith break; 1570e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1571e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1572e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1573e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1574e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 1575baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 1576baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Diag(D.getDeclSpec().getTypeSpecTypeLoc(), diag::err_auto_not_allowed) 1577baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson << Error; 1578baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson T = Context.IntTy; 1579baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 1580baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1581baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1582e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 158334b41d939a1328f484511c6002ba2456db879a29Richard Smith if (T.isNull()) 158434b41d939a1328f484511c6002ba2456db879a29Richard Smith return Context.getNullTypeSourceInfo(); 158534b41d939a1328f484511c6002ba2456db879a29Richard Smith 1586cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 1587cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 1588cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 1589cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 15901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 159198eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 159298eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 159398eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 15948ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 1595711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex = e - i - 1; 1596711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(chunkIndex); 1597711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 15985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 15995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown decltype!"); 1600075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara case DeclaratorChunk::Paren: 1601075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara T = BuildParenType(T); 1602075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara break; 16035618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 16049af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 16059af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 16069af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner Diag(DeclType.Loc, diag::err_blocks_disable); 16071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16082865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildBlockPointerType(T, D.getIdentifierLoc(), Name); 16092865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Cls.TypeQuals) 16102865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); 16115618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 16125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 16136a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 16146a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 16156a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 16166a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 16176a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 16186a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 16196a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 1620c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (getLangOptions().ObjC1 && T->getAs<ObjCObjectType>()) { 1621c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = Context.getObjCObjectPointerType(T); 16222865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 16232865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 162414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 162514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 16262865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildPointerType(T, DeclType.Loc, Name); 16272865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 16282865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 1629711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 16305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 16310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 16326a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 16336a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 16346a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 16356a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 16366a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 16376a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 16386a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 16392865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); 16402865474261a608c7873b87ba4af110d17907896dJohn McCall 16412865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Quals; 16422865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ref.HasRestrict) 16432865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); 16445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 16450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 16465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 16476a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 16486a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 16496a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 16506a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 16516a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 16526a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 16536a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 1654fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 165594f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 16575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 16585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 16615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 1663f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star && 1664f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.getContext() != Declarator::PrototypeContext) { 1665f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 1666f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 1667f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 1668f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 1669f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 1670f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 1671f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 16720953e767ff7817f97b3ab20896b229891eeff45bJohn McCall T = BuildArrayType(T, ASM, ArraySize, 16730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::fromCVRMask(ATI.TypeQuals), 16747e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 16755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 16765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1677f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 16785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 16795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 16805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 16815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 16823cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 168334b41d939a1328f484511c6002ba2456db879a29Richard Smith // Check for auto functions and trailing return type and adjust the 168434b41d939a1328f484511c6002ba2456db879a29Richard Smith // return type accordingly. 168534b41d939a1328f484511c6002ba2456db879a29Richard Smith if (!D.isInvalidType()) { 168634b41d939a1328f484511c6002ba2456db879a29Richard Smith // trailing-return-type is only required if we're declaring a function, 168734b41d939a1328f484511c6002ba2456db879a29Richard Smith // and not, for instance, a pointer to a function. 168834b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 168934b41d939a1328f484511c6002ba2456db879a29Richard Smith !FTI.TrailingReturnType && chunkIndex == 0) { 169034b41d939a1328f484511c6002ba2456db879a29Richard Smith Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 169134b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_auto_missing_trailing_return); 169234b41d939a1328f484511c6002ba2456db879a29Richard Smith T = Context.IntTy; 169334b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 169434b41d939a1328f484511c6002ba2456db879a29Richard Smith } else if (FTI.TrailingReturnType) { 1695e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // T must be exactly 'auto' at this point. See CWG issue 681. 1696e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (isa<ParenType>(T)) { 1697e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 1698e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diag::err_trailing_return_in_parens) 1699e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith << T << D.getDeclSpec().getSourceRange(); 1700e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 1701e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } else if (T.hasQualifiers() || !isa<AutoType>(T)) { 170234b41d939a1328f484511c6002ba2456db879a29Richard Smith Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 170334b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_trailing_return_without_auto) 170434b41d939a1328f484511c6002ba2456db879a29Richard Smith << T << D.getDeclSpec().getSourceRange(); 170534b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 170634b41d939a1328f484511c6002ba2456db879a29Richard Smith } 170734b41d939a1328f484511c6002ba2456db879a29Richard Smith 170834b41d939a1328f484511c6002ba2456db879a29Richard Smith T = GetTypeFromParser( 170934b41d939a1328f484511c6002ba2456db879a29Richard Smith ParsedType::getFromOpaquePtr(FTI.TrailingReturnType), 171034b41d939a1328f484511c6002ba2456db879a29Richard Smith &ReturnTypeInfo); 171134b41d939a1328f484511c6002ba2456db879a29Richard Smith } 171234b41d939a1328f484511c6002ba2456db879a29Richard Smith } 171334b41d939a1328f484511c6002ba2456db879a29Richard Smith 1714e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C99 6.7.5.3p1: The return type may not be a function or array type. 1715e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // For conversion functions, we'll diagnose this particular error later. 1716e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if ((T->isArrayType() || T->isFunctionType()) && 1717e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 1718e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned diagID = diag::err_func_returning_array_function; 1719e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // Last processing chunk in block context means this function chunk 1720e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // represents the block. 1721e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (chunkIndex == 0 && 1722e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.getContext() == Declarator::BlockLiteralContext) 1723e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diagID = diag::err_block_returning_array_function; 1724e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith Diag(DeclType.Loc, diagID) << T->isFunctionType() << T; 1725e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith T = Context.IntTy; 1726e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 1727e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1728e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 17295291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // cv-qualifiers on return types are pointless except when the type is a 17305291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // class type in C++. 1731fff951371dfc309160a99d423e43a7841aeb35aaDouglas Gregor if (isa<PointerType>(T) && T.getLocalCVRQualifiers() && 1732d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth (!getLangOptions().CPlusPlus || !T->isDependentType())) { 1733d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(chunkIndex + 1 < e && "No DeclaratorChunk for the return type?"); 1734d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DeclaratorChunk ReturnTypeChunk = D.getTypeObject(chunkIndex + 1); 1735d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(ReturnTypeChunk.Kind == DeclaratorChunk::Pointer); 1736d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1737d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DeclaratorChunk::PointerTypeInfo &PTI = ReturnTypeChunk.Ptr; 1738d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1739d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DiagnoseIgnoredQualifiers(PTI.TypeQuals, 1740d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.ConstQualLoc), 1741d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.VolatileQualLoc), 1742d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.RestrictQualLoc), 1743d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth *this); 1744d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1745d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } else if (T.getCVRQualifiers() && D.getDeclSpec().getTypeQualifiers() && 17465291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor (!getLangOptions().CPlusPlus || 17475291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor (!T->isDependentType() && !T->isRecordType()))) { 1748d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1749d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DiagnoseIgnoredQualifiers(D.getDeclSpec().getTypeQualifiers(), 1750d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getConstSpecLoc(), 1751d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getVolatileSpecLoc(), 1752d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getRestrictSpecLoc(), 1753d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth *this); 17545291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor } 1755d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1756402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 1757402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 1758402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 1759b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl *Tag = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 1760402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (Tag->isDefinition()) 1761402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 1762402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 1763402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 1764402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 17653cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 17663cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 17673cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl if (FTI.hasExceptionSpec && 17683cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 17693cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl Diag(FTI.getThrowLoc(), diag::err_exception_spec_in_typedef); 17703cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 17712865474261a608c7873b87ba4af110d17907896dJohn McCall if (!FTI.NumArgs && !FTI.isVariadic && !getLangOptions().CPlusPlus) { 17722865474261a608c7873b87ba4af110d17907896dJohn McCall // Simple void foo(), where the incoming T is the result type. 17732865474261a608c7873b87ba4af110d17907896dJohn McCall T = Context.getFunctionNoProtoType(T); 17742865474261a608c7873b87ba4af110d17907896dJohn McCall } else { 17752865474261a608c7873b87ba4af110d17907896dJohn McCall // We allow a zero-parameter variadic function in C if the 17762865474261a608c7873b87ba4af110d17907896dJohn McCall // function is marked with the "overloadable" attribute. Scan 17772865474261a608c7873b87ba4af110d17907896dJohn McCall // for this attribute now. 17782865474261a608c7873b87ba4af110d17907896dJohn McCall if (!FTI.NumArgs && FTI.isVariadic && !getLangOptions().CPlusPlus) { 1779965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 1780965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 1781965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 1782965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (Attrs->getKind() == AttributeList::AT_overloadable) { 1783965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 1784965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 1785965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1786965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1787965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 1788965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 1789965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 1790c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 17912865474261a608c7873b87ba4af110d17907896dJohn McCall 17922865474261a608c7873b87ba4af110d17907896dJohn McCall if (FTI.NumArgs && FTI.ArgInfo[0].Param == 0) { 1793788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function 1794788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // definition. 17952865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 17962865474261a608c7873b87ba4af110d17907896dJohn McCall D.setInvalidType(true); 17972865474261a608c7873b87ba4af110d17907896dJohn McCall break; 17982865474261a608c7873b87ba4af110d17907896dJohn McCall } 17992865474261a608c7873b87ba4af110d17907896dJohn McCall 1800e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 1801e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = FTI.isVariadic; 1802e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = FTI.TypeQuals; 1803c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = !FTI.hasRefQualifier()? RQ_None 1804c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : FTI.RefQualifierIsLValueRef? RQ_LValue 1805c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : RQ_RValue; 1806c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 18075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 18085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 18095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> ArgTys; 18102865474261a608c7873b87ba4af110d17907896dJohn McCall ArgTys.reserve(FTI.NumArgs); 18111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 1813d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 18148123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner QualType ArgTy = Param->getType(); 181578c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 18162dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 18172dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Adjust the parameter type. 1818beb58cb83bd53b79b80fc6f9952efd985934cbfcDouglas Gregor assert((ArgTy == adjustParameterType(ArgTy)) && "Unadjusted type?"); 18192dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 18205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 18215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 182272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 18232dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 18245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 18255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 18265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 18275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 18285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DeclType.Loc, diag::err_void_only_param); 18292ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 18308123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 18312ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 18322ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 18335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(FTI.ArgInfo[i].IdentLoc, 18344565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 18352ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 18368123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 18372ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 18382ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 18390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 18402ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner Diag(DeclType.Loc, diag::err_void_param_qualified); 18411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18422ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 18432ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 18442ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 1845eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 1846eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 1847a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 1848183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 1849eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (BTy->getKind() == BuiltinType::Float) 1850eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 1851eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 18525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 185356a965c0f77c9e6bffd65cc8f8796442a8527381Fariborz Jahanian 185454e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 18555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1856465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1857465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl llvm::SmallVector<QualType, 4> Exceptions; 1858e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall if (FTI.hasExceptionSpec) { 1859e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.HasExceptionSpec = FTI.hasExceptionSpec; 1860e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.HasAnyExceptionSpec = FTI.hasAnyExceptionSpec; 1861e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall Exceptions.reserve(FTI.NumExceptions); 1862e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall for (unsigned ei = 0, ee = FTI.NumExceptions; ei != ee; ++ei) { 1863e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // FIXME: Preserve type source info. 1864e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType ET = GetTypeFromParser(FTI.Exceptions[ei].Ty); 1865e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // Check that the type is valid for an exception spec, and 1866e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // drop it if not. 1867e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall if (!CheckSpecifiedExceptionType(ET, FTI.Exceptions[ei].Range)) 1868e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall Exceptions.push_back(ET); 1869e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 1870373920bd733b1d28fe7bf209945a62eb9248d948John McCall EPI.NumExceptions = Exceptions.size(); 1871e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Exceptions = Exceptions.data(); 1872ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 1873465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1874e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall T = Context.getFunctionType(T, ArgTys.data(), ArgTys.size(), EPI); 18755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 187604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 18775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 18785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1879f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 1880f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 18817bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara CXXScopeSpec &SS = DeclType.Mem.Scope(); 1882f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 18837bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (SS.isInvalid()) { 1884edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 1885edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 18867bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara } else if (isDependentScopeSpecifier(SS) || 18877bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara dyn_cast_or_null<CXXRecordDecl>(computeDeclContext(SS))) { 18881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 18897bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara = static_cast<NestedNameSpecifier*>(SS.getScopeRep()); 189087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 189187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 189287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 18937bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 18944a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 189587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 189687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 189787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 189814aba76042e041b2c5e439bf4ae353a0a3c7fd73Douglas Gregor case NestedNameSpecifier::NamespaceAlias: 189987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 19009f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 190187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 19027bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara 190387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 190487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 190587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 19067bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // Note: if NNS is dependent, then its prefix (if any) is already 19077bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // included in ClsType; this does not hold if the NNS is 19087bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // nondependent: in this case (if there is indeed a prefix) 19097bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // ClsType needs to be wrapped into an elaborated type. 19107bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (NNSPrefix && !NNS->isDependent()) 19117bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getElaboratedType(ETK_None, NNSPrefix, ClsType); 191287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 191387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 1914f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 1915949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(DeclType.Mem.Scope().getBeginLoc(), 1916949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 1917949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 1918949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 1919f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 1920f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1921f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1922949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 19232865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildMemberPointerType(T, ClsType, DeclType.Loc, D.getIdentifier()); 1924949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 1925f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 1926949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 19272865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (DeclType.Mem.TypeQuals) { 19282865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); 1929f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1930f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 1931f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1932f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1933cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 1934cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 1935cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 1936cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1937cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1938c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 1939711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = const_cast<AttributeList*>(DeclType.getAttrs())) 1940711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 19415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1942971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1943971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (getLangOptions().CPlusPlus && T->isFunctionType()) { 1944183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 1945778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 1946971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1947708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // C++ 8.3.5p4: 1948708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // A cv-qualifier-seq shall only be part of the function type 1949708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // for a nonstatic member function, the function type to which a pointer 1950708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // to member refers, or the top-level function type of a function typedef 1951708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // declaration. 1952683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // 1953683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Core issue 547 also allows cv-qualifiers on function types that are 1954683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // top-level template type arguments. 1955613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall bool FreeFunction; 1956613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall if (!D.getCXXScopeSpec().isSet()) { 1957613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (D.getContext() != Declarator::MemberContext || 1958613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall D.getDeclSpec().isFriendSpecified()); 1959613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } else { 1960613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall DeclContext *DC = computeDeclContext(D.getCXXScopeSpec()); 1961613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (DC && !DC->isRecord()); 1962613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } 1963613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall 1964c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // C++0x [dcl.fct]p6: 1965c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // A ref-qualifier shall only be part of the function type for a 1966c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // non-static member function, the function type to which a pointer to 1967c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // member refers, or the top-level function type of a function typedef 1968c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor // declaration. 1969c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor if ((FnTy->getTypeQuals() != 0 || FnTy->getRefQualifier()) && 1970683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor !(D.getContext() == Declarator::TemplateTypeArgContext && 1971683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor !D.isFunctionDeclarator()) && 1972971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef && 1973c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl (FreeFunction || 1974971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static)) { 1975683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (D.getContext() == Declarator::TemplateTypeArgContext) { 1976683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Accept qualified function types as template type arguments as a GNU 1977683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // extension. This is also the subject of C++ core issue 547. 1978683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor std::string Quals; 1979683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (FnTy->getTypeQuals() != 0) 1980683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals = Qualifiers::fromCVRMask(FnTy->getTypeQuals()).getAsString(); 1981683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 1982683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor switch (FnTy->getRefQualifier()) { 1983683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case RQ_None: 1984683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 1985683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 1986683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case RQ_LValue: 1987683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (!Quals.empty()) 1988683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += ' '; 1989683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += '&'; 1990683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 1991c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 1992683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case RQ_RValue: 1993683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (!Quals.empty()) 1994683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += ' '; 1995683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Quals += "&&"; 1996683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 1997683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 1998683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 1999683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Diag(D.getIdentifierLoc(), 2000683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor diag::ext_qualified_function_type_template_arg) 2001683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << Quals; 2002683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } else { 2003683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (FnTy->getTypeQuals() != 0) { 2004683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (D.isFunctionDeclarator()) 2005683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Diag(D.getIdentifierLoc(), 2006683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor diag::err_invalid_qualified_function_type); 2007683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor else 2008683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Diag(D.getIdentifierLoc(), 2009683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor diag::err_invalid_qualified_typedef_function_type_use) 2010683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << FreeFunction; 2011683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2012683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor 2013683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (FnTy->getRefQualifier()) { 2014683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (D.isFunctionDeclarator()) { 2015683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor SourceLocation Loc = D.getIdentifierLoc(); 2016683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor for (unsigned I = 0, N = D.getNumTypeObjects(); I != N; ++I) { 2017683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor const DeclaratorChunk &Chunk = D.getTypeObject(N-I-1); 2018683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor if (Chunk.Kind == DeclaratorChunk::Function && 2019683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Chunk.Fun.hasRefQualifier()) { 2020683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Loc = Chunk.Fun.getRefQualifierLoc(); 2021683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor break; 2022683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2023944aa60777e6ea1015c9423107f7925f6d91f4a0Douglas Gregor } 2024944aa60777e6ea1015c9423107f7925f6d91f4a0Douglas Gregor 2025683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Diag(Loc, diag::err_invalid_ref_qualifier_function_type) 2026683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << (FnTy->getRefQualifier() == RQ_LValue) 2027683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << FixItHint::CreateRemoval(Loc); 2028683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } else { 2029683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor Diag(D.getIdentifierLoc(), 2030683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor diag::err_invalid_ref_qualifier_typedef_function_type_use) 2031683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << FreeFunction 2032683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor << (FnTy->getRefQualifier() == RQ_LValue); 2033683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2034c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor } 2035c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2036683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Strip the cv-qualifiers and ref-qualifiers from the type. 2037683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 2038683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor EPI.TypeQuals = 0; 2039683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor EPI.RefQualifier = RQ_None; 2040c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 2041683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor T = Context.getFunctionType(FnTy->getResultType(), 2042683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor FnTy->arg_type_begin(), 2043683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor FnTy->getNumArgs(), EPI); 2044683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2045971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 2046971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 20471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2048711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any undistributed attributes from the declarator. 2049711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) 2050711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = D.getAttributes()) 2051711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 2052711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2053711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnose any ignored type attributes. 2054711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) state.diagnoseIgnoredTypeAttrs(T); 2055711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2056737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // If there's a constexpr specifier, treat it as a top-level const. 2057737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl if (D.getDeclSpec().isConstexprSpecified()) { 2058737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl T.addConst(); 2059737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl } 2060737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl 2061a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // If there was an ellipsis in the declarator, the declaration declares a 2062a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack whose type may be a pack expansion type. 2063a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (D.hasEllipsis() && !T.isNull()) { 2064a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 2065a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // A declarator-id or abstract-declarator containing an ellipsis shall 2066a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // only be used in a parameter-declaration. Such a parameter-declaration 2067a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // is a parameter pack (14.5.3). [...] 2068a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor switch (D.getContext()) { 2069a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::PrototypeContext: 2070a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 2071a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // [...] When it is part of a parameter-declaration-clause, the 2072a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack is a function parameter pack (14.5.3). The type T 2073a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // of the declarator-id of the function parameter pack shall contain 2074a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // a template parameter pack; each template parameter pack in T is 2075a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // expanded by the function parameter pack. 2076a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 2077a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // We represent function parameter packs as function parameters whose 2078a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // type is a pack expansion. 2079a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (!T->containsUnexpandedParameterPack()) { 2080a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor Diag(D.getEllipsisLoc(), 2081a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor diag::err_function_parameter_pack_without_parameter_packs) 2082a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor << T << D.getSourceRange(); 2083a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 2084a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } else { 2085cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 2086a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2087a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2088a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 2089a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TemplateParamContext: 2090a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [temp.param]p15: 2091a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // If a template-parameter is a [...] is a parameter-declaration that 2092a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // declares a parameter pack (8.3.5), then the template-parameter is a 2093a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // template parameter pack (14.5.3). 2094a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 2095a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Note: core issue 778 clarifies that, if there are any unexpanded 2096a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter packs in the type of the non-type template parameter, then 2097a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // it expands those parameter packs. 2098a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (T->containsUnexpandedParameterPack()) 2099cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 210010738d36b150aa65206890c1c845cdba076e4200Douglas Gregor else if (!getLangOptions().CPlusPlus0x) 21015ce5f5221217b64193799c2a4d5aa84432d3fba4Douglas Gregor Diag(D.getEllipsisLoc(), diag::ext_variadic_templates); 2102a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2103a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 2104a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::FileContext: 2105a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::KNRTypeListContext: 2106a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TypeNameContext: 2107a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::MemberContext: 2108a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockContext: 2109a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ForContext: 2110a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ConditionContext: 2111a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::CXXCatchContext: 2112a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockLiteralContext: 2113683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case Declarator::TemplateTypeArgContext: 2114a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // FIXME: We may want to allow parameter packs in block-literal contexts 2115a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // in the future. 2116a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor Diag(D.getEllipsisLoc(), diag::err_ellipsis_in_declarator_not_parameter); 2117a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 2118a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2119a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2120a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2121e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 2122bf1a028246d884a540aeafa38e89be59a269b072John McCall if (T.isNull()) 2123bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 2124bf1a028246d884a540aeafa38e89be59a269b072John McCall else if (D.isInvalidType()) 2125bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getTrivialTypeSourceInfo(T); 2126bf1a028246d884a540aeafa38e89be59a269b072John McCall return GetTypeSourceInfoForDeclarator(D, T, ReturnTypeInfo); 21275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 21285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 212951bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 213051bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 2131c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor ASTContext &Context; 213251bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 2133f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 213451bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 2135c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(ASTContext &Context, const DeclSpec &DS) 2136c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor : Context(Context), DS(DS) {} 2137f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 213851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 213951bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 214051bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 214151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 214251bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 214351bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 214451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 214551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 2146c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 2147c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 2148c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Handle the base type, which might not have been written explicitly. 2149c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 2150c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(false); 2151c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.getBaseLoc().initialize(Context, SourceLocation()); 2152c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else { 2153c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(true); 2154c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getBaseLoc()); 2155c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 215654e14c4db764c0636160d26c5bbf491637c83a76John McCall 2157c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Protocol qualifiers. 215854e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 215954e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 216054e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 216154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 216254e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 216354e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 216454e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 216554e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 216654e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 216754e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 216854e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 216954e14c4db764c0636160d26c5bbf491637c83a76John McCall } 217051bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 217154e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 217254e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 2173c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getPointeeLoc()); 217451bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 2175833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 2176a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 2177b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2178833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2179833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 2180833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 2181a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 2182c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initialize(Context, DS.getTypeSpecTypeLoc()); 2183833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 2184833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 2185833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2186e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeLoc OldTL = TInfo->getTypeLoc(); 2187e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo->getType()->getAs<ElaboratedType>()) { 2188e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeLoc ElabTL = cast<ElaboratedTypeLoc>(OldTL); 2189e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TemplateSpecializationTypeLoc NamedTL = 2190e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara cast<TemplateSpecializationTypeLoc>(ElabTL.getNamedTypeLoc()); 2191e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(NamedTL); 2192e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2193e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara else 2194e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<TemplateSpecializationTypeLoc>(OldTL)); 2195833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 2196cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 2197cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 2198cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 2199cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 2200cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 2201cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 2202cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 2203cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 2204cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 2205b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall assert(DS.getRepAsType()); 2206cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 2207b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2208cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 2209cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 2210ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 2211ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 2212ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 2213ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 2214ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 2215ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 2216ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 2217ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 2218ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 2219ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 2220ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 2221ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 2222ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 2223ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 2224ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 2225e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 2226e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 2227e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 2228253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 2229e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 2230b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2231e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 2232e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<ElaboratedTypeLoc>(TInfo->getTypeLoc())); 2233e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 2234e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2235e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2236e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 2237e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 2238e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 2239e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 22409e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 2241e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); 2242e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2243e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 2244e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 2245e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 2246253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 2247e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 2248b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2249e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 2250e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<DependentNameTypeLoc>(TInfo->getTypeLoc())); 2251e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 2252e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2253e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2254e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 2255e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 2256e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 2257e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 22582494dd024b392b8def58bf067cc94b51c214cf77Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 225933500955d731c73717af52088b7fc0e7a85681e7John McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 226033500955d731c73717af52088b7fc0e7a85681e7John McCall } 226133500955d731c73717af52088b7fc0e7a85681e7John McCall void VisitDependentTemplateSpecializationTypeLoc( 226233500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypeLoc TL) { 226333500955d731c73717af52088b7fc0e7a85681e7John McCall ElaboratedTypeKeyword Keyword 226433500955d731c73717af52088b7fc0e7a85681e7John McCall = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 226533500955d731c73717af52088b7fc0e7a85681e7John McCall if (Keyword == ETK_Typename) { 226633500955d731c73717af52088b7fc0e7a85681e7John McCall TypeSourceInfo *TInfo = 0; 2267b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 226833500955d731c73717af52088b7fc0e7a85681e7John McCall if (TInfo) { 226933500955d731c73717af52088b7fc0e7a85681e7John McCall TL.copy(cast<DependentTemplateSpecializationTypeLoc>( 227033500955d731c73717af52088b7fc0e7a85681e7John McCall TInfo->getTypeLoc())); 227133500955d731c73717af52088b7fc0e7a85681e7John McCall return; 227233500955d731c73717af52088b7fc0e7a85681e7John McCall } 227333500955d731c73717af52088b7fc0e7a85681e7John McCall } 2274c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initializeLocal(Context, SourceLocation()); 227533500955d731c73717af52088b7fc0e7a85681e7John McCall TL.setKeywordLoc(Keyword != ETK_None 227633500955d731c73717af52088b7fc0e7a85681e7John McCall ? DS.getTypeSpecTypeLoc() 227733500955d731c73717af52088b7fc0e7a85681e7John McCall : SourceLocation()); 227833500955d731c73717af52088b7fc0e7a85681e7John McCall const CXXScopeSpec& SS = DS.getTypeSpecScope(); 227933500955d731c73717af52088b7fc0e7a85681e7John McCall TL.setQualifierRange(SS.isEmpty() ? SourceRange() : SS.getRange()); 228033500955d731c73717af52088b7fc0e7a85681e7John McCall // FIXME: load appropriate source location. 2281e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeLoc()); 2282e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2283e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 228451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 228551bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 2286c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initialize(Context, DS.getTypeSpecTypeLoc()); 228751bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 228851bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 2289eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 229051bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 229151bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 2292f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 229351bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 229451bd803fbdade51d674598ed45da3d54190a656cJohn McCall DeclaratorLocFiller(const DeclaratorChunk &Chunk) : Chunk(Chunk) {} 22954adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 229651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 22979f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 229851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 22994adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 230051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 230151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 230251bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 23034adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 230451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 230551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 230651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 23074adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 230851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 230951bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 231051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 23114adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 231251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 231351bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 231451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 231551bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: nested name specifier 23164adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 231751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 231851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 231954e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 232054e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 232151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 232251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 232351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 232451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 232551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 232651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 232751bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 232851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 232951bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 233051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 233151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 233251bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 233351bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 233451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 233551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 233651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLParenLoc(Chunk.Loc); 233751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRParenLoc(Chunk.EndLoc); 2338dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor TL.setTrailingReturn(!!Chunk.Fun.TrailingReturnType); 233951bd803fbdade51d674598ed45da3d54190a656cJohn McCall 234051bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 234154e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 2342d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 234354e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 23444adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 234551bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 23464adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 2347075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara void VisitParenTypeLoc(ParenTypeLoc TL) { 2348075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Chunk.Kind == DeclaratorChunk::Paren); 2349075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setLParenLoc(Chunk.Loc); 2350075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setRParenLoc(Chunk.EndLoc); 2351075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 23521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 235351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 23549f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 23554adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 235651bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 235751bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 23584adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 2359a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 236051bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 236151bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 236205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// 236305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// \param ReturnTypeInfo For declarators whose return type does not show 236405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// up in the normal place in the declaration specifiers (such as a C++ 236505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// conversion function), this pointer will refer to a type source information 236605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// for that return type. 2367a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 236805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas GregorSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T, 236905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo) { 2370a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 2371a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 237251bd803fbdade51d674598ed45da3d54190a656cJohn McCall 2373a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Handle parameter packs whose type is a pack expansion. 2374a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (isa<PackExpansionType>(T)) { 2375a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor cast<PackExpansionTypeLoc>(CurrTL).setEllipsisLoc(D.getEllipsisLoc()); 2376a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 2377a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2378a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 23798ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 238051bd803fbdade51d674598ed45da3d54190a656cJohn McCall DeclaratorLocFiller(D.getTypeObject(i)).Visit(CurrTL); 238151bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 23824adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 2383f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 2384b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // If we have different source information for the return type, use 2385b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // that. This really only applies to C++ conversion functions. 2386b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ReturnTypeInfo) { 238705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeLoc TL = ReturnTypeInfo->getTypeLoc(); 238805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); 238905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); 2390b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } else { 2391c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(Context, D.getDeclSpec()).Visit(CurrTL); 239205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor } 239305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 2394a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 23954adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 23964adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 2397a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 2398b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallParsedType Sema::CreateParsedType(QualType T, TypeSourceInfo *TInfo) { 23991bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 24001bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 24011bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 2402eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 2403eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor TypeAlignment); 2404a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 24051bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 24061bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 2407b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return ParsedType::make(QualType(LocT, 0)); 24081bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 24091bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 24101bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 24111bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 241235d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis assert(false && "LocInfoType leaked into the type system; an opaque TypeTy*" 241335d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 241435d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 24151bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 24161bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 2417f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallTypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 24185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 24195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 24205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 24211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2422402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor TagDecl *OwnedTag = 0; 2423bf1a028246d884a540aeafa38e89be59a269b072John McCall TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S, &OwnedTag); 2424bf1a028246d884a540aeafa38e89be59a269b072John McCall QualType T = TInfo->getType(); 24255153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 2426809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 24275912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 2428402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus) { 2429402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 24306d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 24316d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor 2432402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++0x [dcl.type]p3: 2433402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // A type-specifier-seq shall not define a class or enumeration 2434402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // unless it appears in the type-id of an alias-declaration 2435402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // (7.1.3). 2436402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (OwnedTag && OwnedTag->isDefinition()) 2437402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(OwnedTag->getLocation(), diag::err_type_defined_in_type_specifier) 2438402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(OwnedTag); 2439402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 2440402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 2441b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return CreateParsedType(T, TInfo); 24425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 24435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2444c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 2445c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 2446c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 2447c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 2448c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 2449232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 2450232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 2451c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 2452c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 24531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 2454c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 24550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 2456232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 2457232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Clause 6.7.3 - Type qualifiers: "No type shall be qualified by qualifiers 2458232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // for two or more different address spaces." 2459232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 2460c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 2461e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 2462c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 2463232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 24641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2465232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 2466545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 2467f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2468e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 2469c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 2470232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 2471545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *ASArgExpr = static_cast<Expr *>(Attr.getArg(0)); 2472232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 2473ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (ASArgExpr->isTypeDependent() || ASArgExpr->isValueDependent() || 2474ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 2475dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_space_not_int) 2476dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner << ASArgExpr->getSourceRange(); 2477e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 2478c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 2479232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 2480232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 2481efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 2482efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 2483efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 2484efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 2485efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 2486e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 2487efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 2488efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 2489efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 2490efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 2491efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 24920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 2493efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 2494efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 24950953e767ff7817f97b3ab20896b229891eeff45bJohn McCall << Qualifiers::MaxAddressSpace << ASArgExpr->getSourceRange(); 2496e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 2497efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 2498efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 2499efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 25001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 2501f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 2502c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 2503c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 2504711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// handleObjCGCTypeAttr - Process the __attribute__((objc_gc)) type 2505711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// attribute on the specified type. Returns true to indicate that 2506711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// the attribute was handled, false to indicate that the type does 2507711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// not permit the attribute. 2508711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 2509711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 2510711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 2511711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 2512711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2513711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this isn't some kind of pointer. 2514711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!type->isPointerType() && 2515711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isObjCObjectPointerType() && 2516711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isBlockPointerType()) 2517711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2518711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (type.getObjCGCAttr() != Qualifiers::GCNone) { 2520711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_multiple_objc_gc); 2521711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2522711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2523d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 25241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2525d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 2526711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!attr.getParameterName()) { 2527711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 2528ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian << "objc_gc" << 1; 2529711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2530711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2531ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 25320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 2533711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 2534711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2535711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2536711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2537d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 2538711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getParameterName()->isStr("weak")) 25390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 2540711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (attr.getParameterName()->isStr("strong")) 25410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 2542d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 2543711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_type_not_supported) 2544711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << "objc_gc" << attr.getParameterName(); 2545711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2546711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2547d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 25481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2549711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = S.Context.getObjCGCQualType(type, GCAttr); 2550711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2551d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 2552d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 2553e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCallnamespace { 2554e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// A helper class to unwrap a type down to a function for the 2555e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// purposes of applying attributes there. 2556e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// 2557e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// Use: 2558e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// FunctionTypeUnwrapper unwrapped(SemaRef, T); 2559e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// if (unwrapped.isFunctionType()) { 2560e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// const FunctionType *fn = unwrapped.get(); 2561e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// // change fn somehow 2562e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// T = unwrapped.wrap(fn); 2563e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// } 2564e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall struct FunctionTypeUnwrapper { 2565e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall enum WrapKind { 2566e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Desugar, 2567e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Parens, 2568e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Pointer, 2569e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall BlockPointer, 2570e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Reference, 2571e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall MemberPointer 2572e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 2573e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2574e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType Original; 2575e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *Fn; 2576e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall llvm::SmallVector<unsigned char /*WrapKind*/, 8> Stack; 2577e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2578e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionTypeUnwrapper(Sema &S, QualType T) : Original(T) { 2579e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall while (true) { 2580e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *Ty = T.getTypePtr(); 2581e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<FunctionType>(Ty)) { 2582e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = cast<FunctionType>(Ty); 2583e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 2584e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ParenType>(Ty)) { 2585e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ParenType>(Ty)->getInnerType(); 2586e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Parens); 2587e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<PointerType>(Ty)) { 2588e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<PointerType>(Ty)->getPointeeType(); 2589e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Pointer); 2590e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<BlockPointerType>(Ty)) { 2591e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<BlockPointerType>(Ty)->getPointeeType(); 2592e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(BlockPointer); 2593e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<MemberPointerType>(Ty)) { 2594e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<MemberPointerType>(Ty)->getPointeeType(); 2595e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(MemberPointer); 2596e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ReferenceType>(Ty)) { 2597e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ReferenceType>(Ty)->getPointeeType(); 2598e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Reference); 2599e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else { 2600e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *DTy = Ty->getUnqualifiedDesugaredType(); 2601e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (Ty == DTy) { 2602e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = 0; 2603e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 2604e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2605e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2606e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = QualType(DTy, 0); 2607e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Desugar); 2608e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2609e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2610e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2611e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2612e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall bool isFunctionType() const { return (Fn != 0); } 2613e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *get() const { return Fn; } 2614e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2615e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(Sema &S, const FunctionType *New) { 2616e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // If T wasn't modified from the unwrapped type, do nothing. 2617e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (New == get()) return Original; 2618e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2619e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = New; 2620e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(S.Context, Original, 0); 2621e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2622e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2623e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall private: 2624e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, QualType Old, unsigned I) { 2625e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) 2626e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(Fn, Old.getQualifiers()); 2627e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2628e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Build up the inner type, applying the qualifiers from the old 2629e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // type to the new type. 2630e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall SplitQualType SplitOld = Old.split(); 2631e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2632e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // As a special case, tail-recurse if there are no qualifiers. 2633e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (SplitOld.second.empty()) 2634e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, SplitOld.first, I); 2635e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(wrap(C, SplitOld.first, I), SplitOld.second); 2636e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2637e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2638e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, const Type *Old, unsigned I) { 2639e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) return QualType(Fn, 0); 2640e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2641e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall switch (static_cast<WrapKind>(Stack[I++])) { 2642e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Desugar: 2643e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // This is the point at which we potentially lose source 2644e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // information. 2645e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, Old->getUnqualifiedDesugaredType(), I); 2646e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2647e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Parens: { 2648e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<ParenType>(Old)->getInnerType(), I); 2649e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getParenType(New); 2650e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2651e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2652e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Pointer: { 2653e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<PointerType>(Old)->getPointeeType(), I); 2654e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getPointerType(New); 2655e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2656e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2657e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case BlockPointer: { 2658e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<BlockPointerType>(Old)->getPointeeType(),I); 2659e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getBlockPointerType(New); 2660e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2661e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2662e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case MemberPointer: { 2663e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const MemberPointerType *OldMPT = cast<MemberPointerType>(Old); 2664e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldMPT->getPointeeType(), I); 2665e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getMemberPointerType(New, OldMPT->getClass()); 2666e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2667e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2668e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Reference: { 2669e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const ReferenceType *OldRef = cast<ReferenceType>(Old); 2670e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldRef->getPointeeType(), I); 2671e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<LValueReferenceType>(OldRef)) 2672e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getLValueReferenceType(New, OldRef->isSpelledAsLValue()); 2673e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall else 2674e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getRValueReferenceType(New); 2675e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2676e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2677e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2678e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall llvm_unreachable("unknown wrapping kind"); 2679e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return QualType(); 2680e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2681e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 2682e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall} 2683e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2684711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Process an individual function attribute. Returns true to 2685711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// indicate that the attribute was handled, false if it wasn't. 2686711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 2687711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 2688711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 2689711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 2690e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2691711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionTypeUnwrapper unwrapped(S, type); 26922455636163fdd18581d7fdae816433f886d88213Mike Stump 2693711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getKind() == AttributeList::AT_noreturn) { 2694711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) 269504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 2696e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2697e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Delay if this is not a function type. 2698711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 2699711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2700425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 2701425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 2702711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withNoReturn(true); 2703711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 2704711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2705711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2706425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 2707711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getKind() == AttributeList::AT_regparm) { 2708711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned value; 2709711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, value)) 2710711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 27111e030eb1194763b42c1752723be23b1515f48981John McCall 2712711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this is not a function type. 2713711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 2714008df5dce3938456ae7ea2e7ab3b2d12391ebf3eJohn McCall return false; 27151e030eb1194763b42c1752723be23b1515f48981John McCall 2716ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Diagnose regparm with fastcall. 2717ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis const FunctionType *fn = unwrapped.get(); 2718ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis CallingConv CC = fn->getCallConv(); 2719ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis if (CC == CC_X86FastCall) { 2720ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 2721ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC) 2722ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm"; 2723ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 2724ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 2725ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 2726ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 2727e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionType::ExtInfo EI = 2728711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unwrapped.get()->getExtInfo().withRegParm(value); 2729711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 2730711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2731425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 2732425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 273304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 2734711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 2735711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 2736711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2737f82b4e85b1219295cad4b5851b035575bc293010John McCall 273804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if the type didn't work out to a function. 2739711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) return false; 274004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 2741711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionType *fn = unwrapped.get(); 2742711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CCOld = fn->getCallConv(); 2743064f7db69def9299f5f4d9a32114afc10b6a6420Charles Davis if (S.Context.getCanonicalCallConv(CC) == 2744e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Context.getCanonicalCallConv(CCOld)) { 2745ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis FunctionType::ExtInfo EI= unwrapped.get()->getExtInfo().withCallingConv(CC); 2746ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 2747711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2748e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 274904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 275004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CCOld != CC_Default) { 275104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Should we diagnose reapplications of the same convention? 2752711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 275304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC) 275404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CCOld); 2755711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2756711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 275704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 275804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 275904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 276004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 2761711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isa<FunctionNoProtoType>(fn)) { 2762711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_knr) 276304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 2764711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2765711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 276604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 276704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 2768711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(fn); 276904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 2770711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_varargs) 277104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 2772711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2773711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 277404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 2775ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 2776ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Also diagnose fastcall with regparm. 2777ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis if (fn->getRegParmType()) { 2778ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 2779ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm" 2780ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC); 2781ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 2782ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 2783ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 278404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 2785f82b4e85b1219295cad4b5851b035575bc293010John McCall 2786711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withCallingConv(CC); 2787711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 2788711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2789f82b4e85b1219295cad4b5851b035575bc293010John McCall} 2790f82b4e85b1219295cad4b5851b035575bc293010John McCall 27916e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 27926e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 27936e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 27946e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 27956e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 27966e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 27976e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 2798788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, 2799788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Sema &S) { 280056affbcaeff9a01caa70b2a237f7e6ac31c8ded6Bob Wilson // Check the attribute arguments. 28016e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 28026e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2803e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 28046e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 28056e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 28066e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 28076e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 2808ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 2809ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 28106e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 28116e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << "vector_size" << sizeExpr->getSourceRange(); 2812e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 28136e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 28146e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 28156e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the base type must be integer or float, and can't already be a vector. 2816f60946222721d9ba3c059563935c17b84703187aDouglas Gregor if (!CurType->isIntegerType() && !CurType->isRealFloatingType()) { 28176e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 2818e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 28196e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 28206e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 28216e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 28226e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 28236e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 28246e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 28256e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 28266e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 28276e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 28286e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 2829e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 28306e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 28316e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 28326e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 28336e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 28346e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 2835e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 28366e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 28376e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 28386e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 28396e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 28406e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 2841788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, 2842e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::GenericVector); 28436e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 28446e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 28454211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// HandleNeonVectorTypeAttr - The "neon_vector_type" and 28464211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// "neon_polyvector_type" attributes are used to create vector types that 28474211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// are mangled according to ARM's ABI. Otherwise, these types are identical 28484211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// to those created with the "vector_size" attribute. Unlike "vector_size" 28494211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// the argument to these Neon attributes is the number of vector elements, 28504211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// not the vector size in bytes. The vector width and element type must 28514211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// match one of the standard Neon vector types. 28524211bb68cff1f310be280f66a59520548ef99d8fBob Wilsonstatic void HandleNeonVectorTypeAttr(QualType& CurType, 28534211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const AttributeList &Attr, Sema &S, 28544211bb68cff1f310be280f66a59520548ef99d8fBob Wilson VectorType::VectorKind VecKind, 28554211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const char *AttrName) { 28564211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Check the attribute arguments. 28574211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (Attr.getNumArgs() != 1) { 28584211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 28594211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 28604211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 28614211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 28624211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The number of elements must be an ICE. 28634211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Expr *numEltsExpr = static_cast<Expr *>(Attr.getArg(0)); 28644211bb68cff1f310be280f66a59520548ef99d8fBob Wilson llvm::APSInt numEltsInt(32); 28654211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (numEltsExpr->isTypeDependent() || numEltsExpr->isValueDependent() || 28664211bb68cff1f310be280f66a59520548ef99d8fBob Wilson !numEltsExpr->isIntegerConstantExpr(numEltsInt, S.Context)) { 28674211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 28684211bb68cff1f310be280f66a59520548ef99d8fBob Wilson << AttrName << numEltsExpr->getSourceRange(); 28694211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 28704211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 28714211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 28724211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Only certain element types are supported for Neon vectors. 28734211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const BuiltinType* BTy = CurType->getAs<BuiltinType>(); 28744211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (!BTy || 28754211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (VecKind == VectorType::NeonPolyVector && 28764211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::SChar && 28774211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short) || 28784211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (BTy->getKind() != BuiltinType::SChar && 28794211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UChar && 28804211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short && 28814211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UShort && 28824211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Int && 28834211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UInt && 28844211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::LongLong && 28854211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::ULongLong && 28864211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Float)) { 28874211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) <<CurType; 28884211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 28894211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 28904211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 28914211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The total size of the vector must be 64 or 128 bits. 28924211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 28934211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned numElts = static_cast<unsigned>(numEltsInt.getZExtValue()); 28944211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned vecSize = typeSize * numElts; 28954211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (vecSize != 64 && vecSize != 128) { 28964211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_bad_neon_vector_size) << CurType; 28974211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 28984211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 28994211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 29004211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 29014211bb68cff1f310be280f66a59520548ef99d8fBob Wilson CurType = S.Context.getVectorType(CurType, numElts, VecKind); 29024211bb68cff1f310be280f66a59520548ef99d8fBob Wilson} 29034211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 2904711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, QualType &type, 2905711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool isDeclSpec, AttributeList *attrs) { 2906c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 2907c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 2908c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 2909c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 2910711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2911711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 2912711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 2913711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr = *attrs; 2914711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr.getNext(); 2915711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2916e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Skip attributes that were marked to be invalid. 2917711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 2918e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara continue; 2919e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2920b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 2921b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 2922711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 2923c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner default: break; 292404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 2925c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner case AttributeList::AT_address_space: 2926711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleAddressSpaceTypeAttribute(type, attr, state.getSema()); 2927c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 2928711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 2929711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!handleObjCPointerTypeAttr(state, attr, type)) 2930711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttr(state, attr, type); 2931d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 293204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_vector_size: 2933711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleVectorSizeAttr(type, attr, state.getSema()); 2934f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 29354211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 2936711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 2937711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonVector, "neon_vector_type"); 29384211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 29394211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 2940711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 2941711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonPolyVector, 29424211bb68cff1f310be280f66a59520548ef99d8fBob Wilson "neon_polyvector_type"); 29434211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 294404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 2945711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 2946711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Never process function type attributes as part of the 2947711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // declaration-specifiers. 2948711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isDeclSpec) 2949711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclSpec(state, attr, type); 2950711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2951711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, handle the possible delays. 2952711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (!handleFunctionTypeAttr(state, attr, type)) 2953711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttr(state, attr, type); 29546e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 2955c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 2956711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attrs = next)); 2957232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 2958232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 29591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 29604ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 29614ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 29624ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 296386447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 296486447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 296586447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 296686447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 296786447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 29684ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 29694ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 29704ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 29714ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 29724ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 29734ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 29741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @param PD The partial diagnostic that will be printed out if T is not a 2975b790661a15d93941d2c33a0ea328254277b3d7e3Anders Carlsson/// complete type. 29764ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 29774ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 29784ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 297991a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 29808c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson const PartialDiagnostic &PD, 29818c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson std::pair<SourceLocation, 29828c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson PartialDiagnostic> Note) { 298391a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson unsigned diag = PD.getDiagID(); 29841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2985573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 2986573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 2987690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 2988690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 2989690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 29901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 2991690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 2992690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 29934ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 29944ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (!T->isIncompleteType()) 29954ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 29964ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 2997d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 2998923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 2999923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 3000923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 300189c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor if (const ConstantArrayType *Array = Context.getAsConstantArrayType(T)) 3002923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 3003923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 30042943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 3005d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 3006972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 3007972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 3008d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 30095842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor /*Complain=*/diag != 0); 30101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 3011d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 3012d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass()) { 3013b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor MemberSpecializationInfo *MSInfo = Rec->getMemberSpecializationInfo(); 3014b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor assert(MSInfo && "Missing member specialization information?"); 3015357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 3016b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor if (MSInfo->getTemplateSpecializationKind() 3017972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor != TSK_ExplicitSpecialization) 3018f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 3019f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 3020f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 3021f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor /*Complain=*/diag != 0); 3022d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 3023d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 3024d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 30252943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 30265842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor if (diag == 0) 30275842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 30281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3029916c870442978db40404d51348cdf5524e506faaJohn McCall const TagType *Tag = T->getAs<TagType>(); 303001620704304f819b82ecef769ec114e541a364d7Rafael Espindola 303101620704304f819b82ecef769ec114e541a364d7Rafael Espindola // Avoid diagnosing invalid decls as incomplete. 303201620704304f819b82ecef769ec114e541a364d7Rafael Espindola if (Tag && Tag->getDecl()->isInvalidDecl()) 303301620704304f819b82ecef769ec114e541a364d7Rafael Espindola return true; 303401620704304f819b82ecef769ec114e541a364d7Rafael Espindola 3035916c870442978db40404d51348cdf5524e506faaJohn McCall // Give the external AST source a chance to complete the type. 3036916c870442978db40404d51348cdf5524e506faaJohn McCall if (Tag && Tag->getDecl()->hasExternalLexicalStorage()) { 3037916c870442978db40404d51348cdf5524e506faaJohn McCall Context.getExternalSource()->CompleteType(Tag->getDecl()); 3038916c870442978db40404d51348cdf5524e506faaJohn McCall if (!Tag->isIncompleteType()) 3039916c870442978db40404d51348cdf5524e506faaJohn McCall return false; 3040916c870442978db40404d51348cdf5524e506faaJohn McCall } 3041916c870442978db40404d51348cdf5524e506faaJohn McCall 30424ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 304391a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson Diag(Loc, PD) << T; 30443c0eb160ca1361a82b9f15b3b40a2425adc14d0fEli Friedman 30458c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson // If we have a note, produce it. 30468c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson if (!Note.first.isInvalid()) 30478c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson Diag(Note.first, Note.second); 30488c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson 30494ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 305001620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 30514ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 30521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 30534ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 30544ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 30554ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor << QualType(Tag, 0); 30564ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 30574ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 30584ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 3059e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 3060fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 3061fe6b2d481d91140923f4541f273b253291884214Douglas Gregor const PartialDiagnostic &PD) { 3062fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PD, 3063fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 3064fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 3065fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 3066fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 3067fe6b2d481d91140923f4541f273b253291884214Douglas Gregor unsigned DiagID) { 3068fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PDiag(DiagID), 3069fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 3070fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 3071fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 3072465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Retrieve a version of the type 'T' that is elaborated by Keyword 3073465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// and qualified by the nested-name-specifier contained in SS. 3074465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraQualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, 3075465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara const CXXScopeSpec &SS, QualType T) { 3076465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (T.isNull()) 3077e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 3078465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS; 3079e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (SS.isValid()) 3080465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 3081465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara else { 3082465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (Keyword == ETK_None) 3083465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T; 3084465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = 0; 3085465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 3086465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return Context.getElaboratedType(Keyword, NNS, T); 3087e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 3088af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 30892a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildTypeofExprType(Expr *E, SourceLocation Loc) { 30902a984cad5ac3fdceeff2bd99daa7b90979313475John McCall ExprResult ER = CheckPlaceholderExpr(E, Loc); 30912a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 30922a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 30932a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 30942b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian if (!E->isTypeDependent()) { 30952b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian QualType T = E->getType(); 3096aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian if (const TagType *TT = T->getAs<TagType>()) 3097aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian DiagnoseUseOfDecl(TT->getDecl(), E->getExprLoc()); 30982b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian } 3099af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 3100af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 3101af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 31022a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildDecltypeType(Expr *E, SourceLocation Loc) { 31032a984cad5ac3fdceeff2bd99daa7b90979313475John McCall ExprResult ER = CheckPlaceholderExpr(E, Loc); 31042a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 31052a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 31064b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 3107af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getDecltypeType(E); 3108af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 3109