SemaType.cpp revision f4c7371fb1d3cebcfb40abad4537bb82515704ea
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 489711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If there are any type objects, the type as written won't 490711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // name a function, regardless of the decl spec type. This 491711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // is because a block signature declarator is always an 492711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // abstract-declarator, and abstract-declarators can't just 493711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // be parentheses chunks. Therefore we need to build a function 494711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // chunk unless there are no type objects and the decl spec 495711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // type is a function. 496711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!declarator.getNumTypeObjects() && declSpecType->isFunctionType()) 497711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 498711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 499711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#ifndef NDEBUG 500711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.getNumTypeObjects()) { 501711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool isOnlyParens = true; 502711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 503711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.getTypeObject(i).Kind != DeclaratorChunk::Paren) { 504711c52bb20d0c69063b52a99826fb7d2835501f1John McCall isOnlyParens = false; 505711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 506711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 507711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 508711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(!isOnlyParens && 509711c52bb20d0c69063b52a99826fb7d2835501f1John McCall "non-empty abstract-declarator contained only parens!"); 510711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 51107fa2fa8b9a0f7982a31e12f4164550d004543aeJohn McCall#endif 512711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 513711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, we need to fake up a function declarator. 514711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation loc = declarator.getSourceRange().getBegin(); 515711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 516711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // ...and *prepend* it to the declarator. 517711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.AddInnermostTypeInfo(DeclaratorChunk::getFunction( 518711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ParsedAttributes(), 519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*proto*/ true, 520711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*variadic*/ false, SourceLocation(), 521711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*args*/ 0, 0, 522711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*type quals*/ 0, 523711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*EH*/ false, SourceLocation(), false, 0, 0, 0, 524711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*parens*/ loc, loc, 525711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator)); 526711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 527711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // For consistency, make sure the state still has us as processing 528711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the decl spec. 529711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getCurrentChunkIndex() == declarator.getNumTypeObjects() - 1); 530711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(declarator.getNumTypeObjects()); 53104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 53204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 533930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// \brief Convert the specified declspec to the appropriate type 534930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// object. 5355db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// \param D the declarator containing the declaration specifier. 5365153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// \returns The type described by the declaration specifiers. This function 5375153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// never returns null. 538711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic QualType ConvertDeclSpecToType(Sema &S, TypeProcessingState &state) { 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: Should move the logic from DeclSpec::Finish to here for validity 5405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // checking. 541711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 542711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 543711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const DeclSpec &DS = declarator.getDeclSpec(); 544711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation DeclLoc = declarator.getIdentifierLoc(); 5455db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (DeclLoc.isInvalid()) 5465db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner DeclLoc = DS.getSourceRange().getBegin(); 5471564e3906cad604a42bd131e584751a75589a9c4Chris Lattner 548711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ASTContext &Context = S.Context; 5491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5505db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner QualType Result; 5515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecType()) { 55296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner case DeclSpec::TST_void: 55396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Result = Context.VoidTy; 55496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner break; 5555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_char: 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 557fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.CharTy; 5585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) 559fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.SignedCharTy; 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else { 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Unknown TSS value"); 563fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.UnsignedCharTy; 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 565958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 56664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case DeclSpec::TST_wchar: 56764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 56864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.WCharTy; 56964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) { 570711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 571f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 57264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getSignedWCharType(); 57364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } else { 57464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 57564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis "Unknown TSS value"); 576711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 577f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 57864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getUnsignedWCharType(); 57964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } 58064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 581f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char16: 582f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 583f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 584f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char16Ty; 585f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 586f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char32: 587f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 588f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 589f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char32Ty; 590f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 591d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner case DeclSpec::TST_unspecified: 59262f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner // "<proto1,proto2>" is an objc qualified ID with a missing id. 593097e916b617bb4a069a03764024c310ed42a6424Chris Lattner if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 594c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 595c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**)PQ, 596c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 597c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 59862f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner break; 59962f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner } 6005db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 6015db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // If this is a missing declspec in a block literal return context, then it 6025db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // is inferred from the return statements inside the block. 603711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isOmittedBlockReturnType(declarator)) { 6045db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner Result = Context.DependentTy; 6055db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 6065db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 6071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 608d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 609d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 610d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 611d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 612d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 613d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 614d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 615711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().ImplicitInt) { 61635d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 61735d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 6183f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 619711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_declspec) 6203f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 621849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(DS.getSourceRange().getBegin(), "int"); 6223f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 6234310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 624d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 625d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 626d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 627d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 6284310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor // FIXME: Does Microsoft really have the implicit int extension in C++? 629711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().CPlusPlus && 630711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !S.getLangOptions().Microsoft) { 631711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_missing_type_specifier) 6323f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 6331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 634b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 635b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 636b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 637711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 638b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 639711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_type_specifier) 6403f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 641b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 642d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 6431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 6453cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 6465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 648fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 649fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 650fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 651311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 652311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 653311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 654311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 655711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!S.getLangOptions().C99 && 656711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !S.getLangOptions().CPlusPlus0x) 657711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 658311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 662fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 663fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 664fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 665311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 666311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 667311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 668311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 669711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!S.getLangOptions().C99 && 670711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !S.getLangOptions().CPlusPlus0x) 671711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 672311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 675958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 6763cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 677fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 678958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 679958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 680fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 681958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 682fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 683958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 684fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 688711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 6898f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 690711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 6918f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 69299dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_struct: { 696b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeDecl *D = dyn_cast_or_null<TypeDecl>(DS.getRepAsDecl()); 6976e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 6986e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 6996e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 700711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7016e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 7026e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 7036e24726524c2b51b31bb4b622aa678a46b024f42John McCall 704a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 705711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeLoc()); 706a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 708a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 709a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 711a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 7122191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 7132191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall // In C++, make an ElaboratedType. 714711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().CPlusPlus) { 715465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedTypeKeyword Keyword 716465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); 717711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.getElaboratedType(Keyword, DS.getTypeSpecScope(), Result); 7182191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall } 7195153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D->isInvalidDecl()) 720711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 721958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7231a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 7255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 7265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 727711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 72827940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall if (Result.isNull()) 729711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 73027940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall else if (DeclSpec::ProtocolQualifierListTy PQ 73127940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall = DS.getProtocolQualifiers()) { 732c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *ObjT = Result->getAs<ObjCObjectType>()) { 733c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Silently drop any existing protocol qualifiers. 734c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // TODO: determine whether that's the right thing to do. 735c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjT->getNumProtocols()) 736c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = ObjT->getBaseType(); 737c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 738c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getNumProtocolQualifiers()) 739c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Result, 740c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 741c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 742c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCIdType()) { 743ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 744c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 745c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 746c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 747c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 748c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCClassType()) { 7494262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 750c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy, 751c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 752c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 753c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 7543f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 755711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 7563f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 757711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7583f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 759c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 7601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 762958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 764958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 765e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 766711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 767958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 768730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (!Result->isDependentType()) 769730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (const TagType *TT = Result->getAs<TagType>()) 770711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.DiagnoseUseOfDecl(TT->getDecl(), DS.getTypeSpecTypeLoc()); 771d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 772fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 773958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 774d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 775b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 776d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 777d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 778711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildTypeofExprType(E, DS.getTypeSpecTypeLoc()); 7794b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 7804b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 781711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7824b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 783958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 784d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 7856fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 786b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 7876fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 7886fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 789711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildDecltypeType(E, DS.getTypeSpecTypeLoc()); 790af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 791af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 792711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 793af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 7946fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 7956fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 796e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson case DeclSpec::TST_auto: { 797e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 798e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson Result = Context.UndeducedAutoTy; 799e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 800e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson } 8011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 802809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 8035153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 804711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8055153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 8065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 808958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 809f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 810711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.getLangOptions().Freestanding) 811711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 812fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 81382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 81482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 81582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 816e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::VectorKind VecKind = VectorType::AltiVecVector; 817788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner if (DS.isTypeAltiVecPixel()) 818e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecPixel; 819788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner else if (DS.isTypeAltiVecBool()) 820e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecBool; 821e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson Result = Context.getVectorType(Result, 128/typeSize, VecKind); 822f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 8231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82447423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis // FIXME: Imaginary. 82547423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis if (DS.getTypeSpecComplex() == DeclSpec::TSC_imaginary) 826711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::err_imaginary_not_supported); 8271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 828711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Before we process any type attributes, synthesize a block literal 829711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // function declarator if necessary. 830711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.getContext() == Declarator::BlockLiteralContext) 831711c52bb20d0c69063b52a99826fb7d2835501f1John McCall maybeSynthesizeBlockSignature(state, Result); 832711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 833711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any type attributes from the decl spec. This may cause the 834711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // list of type attributes to be temporarily saved while the type 835711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // attributes are pushed around. 836711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = DS.getAttributes().getList()) 837711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, Result, true, attrs); 8381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 83996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 84096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 84196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 84296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Enforce C99 6.7.3p2: "Types other than pointer types derived from object 84396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // or incomplete types shall not be restrict-qualified." C++ also allows 84496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // restrict-qualified references. 8450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_restrict) { 8462b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isAnyPointerType() || Result->isReferenceType()) { 8472b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian QualType EltTy; 8482b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isObjCObjectPointerType()) 8492b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result; 8502b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian else 8512b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result->isPointerType() ? 8522b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<PointerType>()->getPointeeType() : 8532b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<ReferenceType>()->getPointeeType(); 8541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 855bad0e656c3732e3539a9cd6525de721d7e47408bDouglas Gregor // If we have a pointer or reference, the pointee must have an object 856bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner // incomplete type. 857bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner if (!EltTy->isIncompleteOrObjectType()) { 858711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 859d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_invalid_pointee) 860d162584991885ab004a02573a73ce06422b921fcChris Lattner << EltTy << DS.getSourceRange(); 8610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 862bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } 863bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } else { 864711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 865711c52bb20d0c69063b52a99826fb7d2835501f1John McCall diag::err_typecheck_invalid_restrict_not_pointer) 866d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 8670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 86896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 86996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 8701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 87196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 87296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 87396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 87496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 87596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Get some location to point at, either the C or V location. 87696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner SourceLocation Loc; 8770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 87896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getConstSpecLoc(); 8790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 88096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getVolatileSpecLoc(); 8810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 8820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((TypeQuals & DeclSpec::TQ_restrict) && 8830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Has CVR quals but not C, V, or R?"); 8840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Loc = DS.getRestrictSpecLoc(); 88596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 886711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(Loc, diag::warn_typecheck_function_qualifiers) 887d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 88896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 8891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 890f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 891f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 892f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 893f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 894f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 8951a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 8961a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 897f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 8980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 8990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 9001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 9011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(TypeQuals); 9030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Result = Context.getQualifiedType(Result, Quals); 90496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 906f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 907f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 908f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 909cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 910cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 911cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 9121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 913cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 914cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 915cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 9162865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 9172865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Qs) { 9182865474261a608c7873b87ba4af110d17907896dJohn McCall // Enforce C99 6.7.3p2: "Types other than pointer types derived from 9192865474261a608c7873b87ba4af110d17907896dJohn McCall // object or incomplete types shall not be restrict-qualified." 9202865474261a608c7873b87ba4af110d17907896dJohn McCall if (Qs.hasRestrict()) { 9212865474261a608c7873b87ba4af110d17907896dJohn McCall unsigned DiagID = 0; 9222865474261a608c7873b87ba4af110d17907896dJohn McCall QualType ProblemTy; 9232865474261a608c7873b87ba4af110d17907896dJohn McCall 9242865474261a608c7873b87ba4af110d17907896dJohn McCall const Type *Ty = T->getCanonicalTypeInternal().getTypePtr(); 9252865474261a608c7873b87ba4af110d17907896dJohn McCall if (const ReferenceType *RTy = dyn_cast<ReferenceType>(Ty)) { 9262865474261a608c7873b87ba4af110d17907896dJohn McCall if (!RTy->getPointeeType()->isIncompleteOrObjectType()) { 9272865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 9282865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<ReferenceType>()->getPointeeType(); 9292865474261a608c7873b87ba4af110d17907896dJohn McCall } 9302865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) { 9312865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 9322865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 9332865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 9342865474261a608c7873b87ba4af110d17907896dJohn McCall } 9352865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const MemberPointerType *PTy = dyn_cast<MemberPointerType>(Ty)) { 9362865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 9372865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 9382865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 9392865474261a608c7873b87ba4af110d17907896dJohn McCall } 9402865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (!Ty->isDependentType()) { 9412865474261a608c7873b87ba4af110d17907896dJohn McCall // FIXME: this deserves a proper diagnostic 9422865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 9432865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T; 9442865474261a608c7873b87ba4af110d17907896dJohn McCall } 9452865474261a608c7873b87ba4af110d17907896dJohn McCall 9462865474261a608c7873b87ba4af110d17907896dJohn McCall if (DiagID) { 9472865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(Loc, DiagID) << ProblemTy; 9482865474261a608c7873b87ba4af110d17907896dJohn McCall Qs.removeRestrict(); 9492865474261a608c7873b87ba4af110d17907896dJohn McCall } 9502865474261a608c7873b87ba4af110d17907896dJohn McCall } 9512865474261a608c7873b87ba4af110d17907896dJohn McCall 9522865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getQualifiedType(T, Qs); 9532865474261a608c7873b87ba4af110d17907896dJohn McCall} 9542865474261a608c7873b87ba4af110d17907896dJohn McCall 955075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// \brief Build a paren type including \p T. 956075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo BagnaraQualType Sema::BuildParenType(QualType T) { 957075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara return Context.getParenType(T); 958075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara} 959075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 960cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 961cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 962cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 963cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 964cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 965cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 966cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 967cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 968cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 969cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 970cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 971cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 972cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 9732865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildPointerType(QualType T, 974cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 975cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 976cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 977cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 978ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 979cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 980cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 981cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 982c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); 98392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 984cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 9852865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getPointerType(T); 986cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 987cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 988cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 989cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 990cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 991cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 992cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 993cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 994cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 995cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 996cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 997cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 998cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 999cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 1000cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 100154e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 10022865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 100354e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 100454e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 100554e14c4db764c0636160d26c5bbf491637c83a76John McCall 100654e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++0x [dcl.typedef]p9: If a typedef TD names a type that is a 100754e14c4db764c0636160d26c5bbf491637c83a76John McCall // reference to a type T, and attempt to create the type "lvalue 100854e14c4db764c0636160d26c5bbf491637c83a76John McCall // reference to cv TD" creates the type "lvalue reference to T". 100954e14c4db764c0636160d26c5bbf491637c83a76John McCall // We use the qualifiers (restrict or none) of the original reference, 101054e14c4db764c0636160d26c5bbf491637c83a76John McCall // not the new ones. This is consistent with GCC. 101154e14c4db764c0636160d26c5bbf491637c83a76John McCall 101254e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 101354e14c4db764c0636160d26c5bbf491637c83a76John McCall // 101454e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 101554e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 101654e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 101754e14c4db764c0636160d26c5bbf491637c83a76John McCall // 101854e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 101954e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 102054e14c4db764c0636160d26c5bbf491637c83a76John McCall // 102154e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 102254e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 102354e14c4db764c0636160d26c5bbf491637c83a76John McCall // collapsing of references-to-references as described in C++ 102454e14c4db764c0636160d26c5bbf491637c83a76John McCall // DR 106 and amended by C++ DR 540. 1025cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1026cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 102733a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 1028cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 1029cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 1030cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 1031cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1032cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1033cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1034cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 10357c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 10362865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getLValueReferenceType(T, SpelledAsLValue); 10372865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getRValueReferenceType(T); 1038cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1039cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1040cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 1041cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1042cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 1043cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1044cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 10451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 10461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 1047cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1048cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1049cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// array type or, if there is no such entity, the location of the 1050cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have array type. 1051cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1052cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 1053cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1054cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1055cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 1056cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 1057cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 1058cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 10597e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 10600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10617e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 1062923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (getLangOptions().CPlusPlus) { 1063138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 1064138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 1065138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // type, the (possibly cv-qualified) type void, a function type or an 1066138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 1067138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 1068138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 1069138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 1070138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 1071138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 1072138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1073138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 1074138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1075923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (T->isVoidType()) { 1076923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 1077923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1078923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1079138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1080138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (RequireNonAbstractType(Brackets.getBegin(), T, 1081138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 1082138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1083138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1084923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 1085138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 1086138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 1087923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 1088923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 1089923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1090923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1091cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1092cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 1093cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 1094ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1095cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1096cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 10971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1098e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson if (Context.getCanonicalType(T) == Context.UndeducedAutoTy) { 10991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, diag::err_illegal_decl_array_of_auto) 1100e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson << getPrintableNameForEntity(Entity); 1101e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson return QualType(); 1102e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson } 11031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11046217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 1105cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 1106cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 1107cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 1108cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 1109c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (T->isObjCObjectType()) { 1110c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 1111c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 1112cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 11131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11145e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // Do lvalue-to-rvalue conversions on the array size expression. 11155e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall if (ArraySize && !ArraySize->isRValue()) 11165e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall DefaultLvalueConversion(ArraySize); 11175e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall 1118cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 11195e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // TODO: in theory, if we were insane, we could allow contextual 11205e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // conversions to integer type here. 1121cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (ArraySize && !ArraySize->isTypeDependent() && 11221274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1123cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1124cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 1125cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1126cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 11272767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor llvm::APSInt ConstVal(Context.getTypeSize(Context.getSizeType())); 1128cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 1129f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 11307e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 1131f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 1132f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 1133ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()) { 11347e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 1135cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else if (!ArraySize->isIntegerConstantExpr(ConstVal, Context) || 1136923d56d436f750bc1f29db50e641078725558a1bSebastian Redl (!T->isDependentType() && !T->isIncompleteType() && 1137923d56d436f750bc1f29db50e641078725558a1bSebastian Redl !T->isConstantSizeType())) { 1138cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Per C99, a variable array is an array with either a non-constant 1139cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // size or an element type that has a non-constant-size 11407e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 1141cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 1142cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 1143cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 1144923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 1145b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth if (Entity) 1146b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_decl_negative_array_size) 1147b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << getPrintableNameForEntity(Entity) << ArraySize->getSourceRange(); 1148b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth else 1149b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_typecheck_negative_array_size) 1150b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << ArraySize->getSourceRange(); 1151923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1152923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1153923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 115402024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 115502024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 115602024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor Diag(ArraySize->getLocStart(), 115702024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 115802024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 1159923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 11602767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor } else if (!T->isDependentType() && !T->isVariablyModifiedType() && 11612767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor !T->isIncompleteType()) { 11622767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor // Is the array too large? 11632767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor unsigned ActiveSizeBits 11642767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor = ConstantArrayType::getNumAddressingBits(Context, T, ConstVal); 11652767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) 11662767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_too_large) 11672767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ConstVal.toString(10) 11682767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ArraySize->getSourceRange(); 11691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 11702767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 117146a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 1172cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1173af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 1174af40776922bc5c28e740adb0342faa09f35b0068David Chisnall if (!getLangOptions().C99) { 11750fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor if (T->isVariableArrayType()) { 11760fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Prohibit the use of non-POD types in VLAs. 1177204ce17e0cfd9bbe229627e1e5a20c3f2f587c8cDouglas Gregor if (!T->isDependentType() && 1178204ce17e0cfd9bbe229627e1e5a20c3f2f587c8cDouglas Gregor !Context.getBaseElementType(T)->isPODType()) { 11790fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::err_vla_non_pod) 11800fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor << Context.getBaseElementType(T); 11810fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor return QualType(); 11820fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } 1183a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor // Prohibit the use of VLAs during template argument deduction. 1184a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor else if (isSFINAEContext()) { 1185a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor Diag(Loc, diag::err_vla_in_sfinae); 1186a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor return QualType(); 1187a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor } 11880fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Just extwarn about VLAs. 11890fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor else 11900fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::ext_vla); 11910fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } else if (ASM != ArrayType::Normal || Quals != 0) 1192043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor Diag(Loc, 1193043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor getLangOptions().CPlusPlus? diag::err_c99_array_usage_cxx 1194043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor : diag::ext_c99_array_usage); 1195cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1196cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1197cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 1198cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 11999cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 12009cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 12019cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 12029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 12039ae2f076ca5ab1feb3ba95629099ec2319833701John McCallQualType Sema::BuildExtVectorType(QualType T, Expr *ArraySize, 12049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 12059cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 12069cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 12071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 12089cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 12099cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 12109cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 12119cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 12129cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 12139ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isTypeDependent() && !ArraySize->isValueDependent()) { 12149cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 12159ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isIntegerConstantExpr(vecSize, Context)) { 12169cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_argument_not_int) 12179ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << "ext_vector_type" << ArraySize->getSourceRange(); 12189cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 12199cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 12201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 12229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 12231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 12241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 12269cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 12279ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << ArraySize->getSourceRange(); 12289cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 12299cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 12301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12319cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T->isDependentType()) 12329cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return Context.getExtVectorType(T, vectorSize); 12331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 12341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12359ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Context.getDependentSizedExtVectorType(T, ArraySize, AttrLoc); 12369cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 12371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1238724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \brief Build a function type. 1239724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1240724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// This routine checks the function type according to C++ rules and 1241724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// under the assumption that the result type and parameter types have 1242724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// just been instantiated from a template. It therefore duplicates 12432943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor/// some of the behavior of GetTypeForDeclarator, but in a much 1244724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// simpler form that is only suitable for this narrow use case. 1245724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1246724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param T The return type of the function. 1247724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1248724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param ParamTypes The parameter types of the function. This array 1249724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// will be modified to account for adjustments to the types of the 1250724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function parameters. 1251724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1252724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param NumParamTypes The number of parameter types in ParamTypes. 1253724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1254724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Variadic Whether this is a variadic function type. 1255724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1256724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the function type. 1257724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1258724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Loc The location of the entity whose type involves this 1259724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function type or, if there is no such entity, the location of the 1260724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type that will have function type. 1261724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1262724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Entity The name of the entity that involves the function 1263724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type, if known. 1264724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1265724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \returns A suitable function type, if there are no 1266724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// errors. Otherwise, returns a NULL type. 1267724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas GregorQualType Sema::BuildFunctionType(QualType T, 12681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType *ParamTypes, 1269724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor unsigned NumParamTypes, 1270724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Variadic, unsigned Quals, 1271fa869547eb1cab12d7e0c0dfa8ba594e336b9b32Eli Friedman SourceLocation Loc, DeclarationName Entity, 1272e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionType::ExtInfo Info) { 1273724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 127458408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(Loc, diag::err_func_returning_array_function) 127558408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1276724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1277724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 12785291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor 1279724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 1280724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor for (unsigned Idx = 0; Idx < NumParamTypes; ++Idx) { 12812dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor QualType ParamType = adjustParameterType(ParamTypes[Idx]); 12822dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 1283724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 1284724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 1285724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1286cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 128754e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 1288724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1289724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1290724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 1291724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1292724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1293e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 1294e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = Variadic; 1295e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = Quals; 1296e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.ExtInfo = Info; 1297e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 1298e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall return Context.getFunctionType(T, ParamTypes, NumParamTypes, EPI); 1299724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 13001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1301949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 1302949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1303949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 1304949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 13050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR Qualifiers applied to the member pointer type 1306949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 1307949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 1308949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1309949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 1310949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 13111eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 13122865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 1313949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 1314949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 1315949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 1316949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 1317949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 1318949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1319949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 1320949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 1321949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1322949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 1323949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 1324949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 1325949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1326949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1327737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // C++ 8.3.3p3: A pointer to member shall not point to ... a member 1328949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 1329949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 13308d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 1331ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 1332949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1333949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1334949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1335949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 1336949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 1337949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 1338949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1339949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1340949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1341949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 1342949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 1343949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1344949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1345949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1346d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // In the Microsoft ABI, the class is allowed to be an incomplete 1347d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // type. In such cases, the compiler makes a worst-case assumption. 1348d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // We make no such assumption right now, so emit an error if the 1349d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // class isn't a complete type. 135020cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis if (Context.Target.getCXXABI() == CXXABI_Microsoft && 1351d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis RequireCompleteType(Loc, Class, diag::err_incomplete_type)) 1352d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis return QualType(); 1353d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis 13542865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getMemberPointerType(T, Class.getTypePtr()); 1355949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 13561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13579a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 13589a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 13599a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 13609a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 13610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR The cvr-qualifiers to be applied to the block pointer type. 13629a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 13639a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Loc The location of the entity whose type involves this 13649a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// block pointer type or, if there is no such entity, the location of the 13659a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type that will have block pointer type. 13669a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 13679a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 13689a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 13699a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 13709a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 13719a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 13722865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildBlockPointerType(QualType T, 13731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 13749a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 13750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 13769a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 13779a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 13789a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 13791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13802865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getBlockPointerType(T); 13819a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 13829a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 1383b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallQualType Sema::GetTypeFromParser(ParsedType Ty, TypeSourceInfo **TInfo) { 1384b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = Ty.get(); 13853f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 1386a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 13873f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 13883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 13893f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1390a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 1391f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 1392e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 1393a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 1394e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 13951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1396a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 1397e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 1398e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 1399e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 140098eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump/// GetTypeForDeclarator - Convert the type for the specified 14018ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl/// declarator to Type instances. 1402402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// 1403402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// If OwnedDecl is non-NULL, and this declarator's decl-specifier-seq 1404402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// owns the declaration of a type (e.g., the definition of a struct 1405402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// type), then *OwnedDecl will receive the owned declaration. 1406bf1a028246d884a540aeafa38e89be59a269b072John McCall/// 1407bf1a028246d884a540aeafa38e89be59a269b072John McCall/// The result of this call will never be null, but the associated 1408bf1a028246d884a540aeafa38e89be59a269b072John McCall/// type may be a null type if there's an unrecoverable error. 1409bf1a028246d884a540aeafa38e89be59a269b072John McCallTypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S, 1410bf1a028246d884a540aeafa38e89be59a269b072John McCall TagDecl **OwnedDecl) { 1411930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Determine the type of the declarator. Not all forms of declarator 1412930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // have a type. 1413930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 141405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo = 0; 1415711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1416711c52bb20d0c69063b52a99826fb7d2835501f1John McCall TypeProcessingState state(*this, D); 141704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 14183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 14193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 14203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 14210486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 14223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 1423711c52bb20d0c69063b52a99826fb7d2835501f1John McCall T = ConvertDeclSpecToType(*this, state); 14245db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 1425591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 1426b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl* Owned = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 1427b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor // Owned is embedded if it was defined here, or if it is the 1428b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor // very first (i.e., canonical) declaration of this tag type. 1429b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor Owned->setEmbeddedInDeclarator(Owned->isDefinition() || 1430b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor Owned->isCanonicalDecl()); 1431591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (OwnedDecl) *OwnedDecl = Owned; 1432591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 1433930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 1434930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 14353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 14360efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 14373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 1438930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 143948026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // "void" instead. 1440930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor T = Context.VoidTy; 1441930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 144248026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 144348026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 144448026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 144548026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 144605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor T = GetTypeFromParser(D.getName().ConversionFunctionId, 1447bf1a028246d884a540aeafa38e89be59a269b072John McCall &ReturnTypeInfo); 144848026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 1449930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 1450dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor 1451711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (D.getAttributes()) 1452711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeTypeAttrsFromDeclarator(state, T); 1453711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1454dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor // Check for auto functions and trailing return type and adjust the 1455dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor // return type accordingly. 1456dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor if (getLangOptions().CPlusPlus0x && D.isFunctionDeclarator()) { 1457075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 1458dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor if (T == Context.UndeducedAutoTy) { 1459dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor if (FTI.TrailingReturnType) { 1460dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor T = GetTypeFromParser(ParsedType::getFromOpaquePtr(FTI.TrailingReturnType), 1461dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor &ReturnTypeInfo); 1462dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor } 1463dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor else { 1464dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 1465dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor diag::err_auto_missing_trailing_return); 1466dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor T = Context.IntTy; 1467dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor D.setInvalidType(true); 1468dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor } 1469dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor } 1470dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor else if (FTI.TrailingReturnType) { 1471dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 1472dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor diag::err_trailing_return_without_auto); 1473dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor D.setInvalidType(true); 1474dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor } 1475dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor } 1476dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor 14771f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor if (T.isNull()) 1478bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 14791f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor 1480baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (T == Context.UndeducedAutoTy) { 1481baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 14821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1483baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 1484baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 1485baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson assert(0 && "K&R type lists aren't allowed in C++"); 1486baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1487baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 1488baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 0; // Function prototype 1489baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1490baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 1491baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (cast<TagDecl>(CurContext)->getTagKind()) { 1492465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Enum: assert(0 && "unhandled tag kind"); break; 1493465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Struct: Error = 1; /* Struct member */ break; 1494465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Union: Error = 2; /* Union member */ break; 1495465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Class: Error = 3; /* Class member */ break; 14961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1497baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1498baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 1499baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 4; // Exception declaration 1500baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1501baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 1502baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 5; // Template parameter 1503baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1504baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 1505baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 6; // Block literal 1506baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1507baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 1508baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 1509baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 1510baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 1511baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TypeNameContext: 1512baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1513baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1514baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 1515baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 1516baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Diag(D.getDeclSpec().getTypeSpecTypeLoc(), diag::err_auto_not_allowed) 1517baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson << Error; 1518baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson T = Context.IntTy; 1519baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 1520baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1521baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 15221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1523cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 1524cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 1525cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 1526cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 15271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 152898eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 152998eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 153098eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 15318ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 1532711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex = e - i - 1; 1533711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(chunkIndex); 1534711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 15355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 15365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown decltype!"); 1537075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara case DeclaratorChunk::Paren: 1538075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara T = BuildParenType(T); 1539075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara break; 15405618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 15419af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 15429af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 15439af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner Diag(DeclType.Loc, diag::err_blocks_disable); 15441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15452865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildBlockPointerType(T, D.getIdentifierLoc(), Name); 15462865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Cls.TypeQuals) 15472865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); 15485618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 15495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 15506a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 15516a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 15526a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 15536a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 15546a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 15556a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 15566a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 1557c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (getLangOptions().ObjC1 && T->getAs<ObjCObjectType>()) { 1558c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = Context.getObjCObjectPointerType(T); 15592865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 15602865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 156114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 156214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 15632865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildPointerType(T, DeclType.Loc, Name); 15642865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 15652865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 1566711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 15675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 15680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 15696a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 15706a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 15716a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 15726a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 15736a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 15746a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 15756a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 15762865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); 15772865474261a608c7873b87ba4af110d17907896dJohn McCall 15782865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Quals; 15792865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ref.HasRestrict) 15802865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 15820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 15835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 15846a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 15856a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 15866a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 15876a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 15886a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 15896a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 15906a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 1591fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 159294f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 15935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 15945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 15955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 15965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 15975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 15985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 15995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 1600f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star && 1601f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.getContext() != Declarator::PrototypeContext) { 1602f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 1603f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 1604f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 1605f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 1606f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 1607f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 1608f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 16090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall T = BuildArrayType(T, ASM, ArraySize, 16100953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::fromCVRMask(ATI.TypeQuals), 16117e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 16125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 16135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1614f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 16155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 16165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 16175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 16185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 16193cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 1620cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner // C99 6.7.5.3p1: The return type may not be a function or array type. 162158408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor // For conversion functions, we'll diagnose this particular error later. 162248026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor if ((T->isArrayType() || T->isFunctionType()) && 162348026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 162458408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(DeclType.Loc, diag::err_func_returning_array_function) 162558408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1626cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner T = Context.IntTy; 1627cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner D.setInvalidType(true); 1628cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner } 1629465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 16305291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // cv-qualifiers on return types are pointless except when the type is a 16315291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // class type in C++. 16325291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor if (T.getCVRQualifiers() && D.getDeclSpec().getTypeQualifiers() && 16335291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor (!getLangOptions().CPlusPlus || 16345291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor (!T->isDependentType() && !T->isRecordType()))) { 16355291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor unsigned Quals = D.getDeclSpec().getTypeQualifiers(); 1636de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor std::string QualStr; 1637de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor unsigned NumQuals = 0; 16385291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor SourceLocation Loc; 1639de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor if (Quals & Qualifiers::Const) { 16405291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor Loc = D.getDeclSpec().getConstSpecLoc(); 1641de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor ++NumQuals; 1642de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor QualStr = "const"; 1643de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor } 1644de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor if (Quals & Qualifiers::Volatile) { 1645de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor if (NumQuals == 0) { 1646de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor Loc = D.getDeclSpec().getVolatileSpecLoc(); 1647de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor QualStr = "volatile"; 1648de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor } else 1649de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor QualStr += " volatile"; 1650de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor ++NumQuals; 1651de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor } 1652de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor if (Quals & Qualifiers::Restrict) { 1653de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor if (NumQuals == 0) { 1654de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor Loc = D.getDeclSpec().getRestrictSpecLoc(); 1655de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor QualStr = "restrict"; 1656de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor } else 1657de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor QualStr += " restrict"; 1658de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor ++NumQuals; 16595291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor } 1660de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor assert(NumQuals > 0 && "No known qualifiers?"); 1661de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor 16625291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor SemaDiagnosticBuilder DB = Diag(Loc, diag::warn_qual_return_type); 1663de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor DB << QualStr << NumQuals; 16645291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor if (Quals & Qualifiers::Const) 16655291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor DB << FixItHint::CreateRemoval(D.getDeclSpec().getConstSpecLoc()); 16665291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor if (Quals & Qualifiers::Volatile) 16675291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor DB << FixItHint::CreateRemoval(D.getDeclSpec().getVolatileSpecLoc()); 16685291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor if (Quals & Qualifiers::Restrict) 16695291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor DB << FixItHint::CreateRemoval(D.getDeclSpec().getRestrictSpecLoc()); 16705291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor } 16715291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor 1672402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 1673402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 1674402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 1675b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl *Tag = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 1676402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (Tag->isDefinition()) 1677402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 1678402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 1679402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 1680402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 16813cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 16823cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 16833cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl if (FTI.hasExceptionSpec && 16843cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 16853cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl Diag(FTI.getThrowLoc(), diag::err_exception_spec_in_typedef); 16863cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 16872865474261a608c7873b87ba4af110d17907896dJohn McCall if (!FTI.NumArgs && !FTI.isVariadic && !getLangOptions().CPlusPlus) { 16882865474261a608c7873b87ba4af110d17907896dJohn McCall // Simple void foo(), where the incoming T is the result type. 16892865474261a608c7873b87ba4af110d17907896dJohn McCall T = Context.getFunctionNoProtoType(T); 16902865474261a608c7873b87ba4af110d17907896dJohn McCall } else { 16912865474261a608c7873b87ba4af110d17907896dJohn McCall // We allow a zero-parameter variadic function in C if the 16922865474261a608c7873b87ba4af110d17907896dJohn McCall // function is marked with the "overloadable" attribute. Scan 16932865474261a608c7873b87ba4af110d17907896dJohn McCall // for this attribute now. 16942865474261a608c7873b87ba4af110d17907896dJohn McCall if (!FTI.NumArgs && FTI.isVariadic && !getLangOptions().CPlusPlus) { 1695965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 1696965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 1697965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 1698965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (Attrs->getKind() == AttributeList::AT_overloadable) { 1699965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 1700965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 1701965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1702965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1703965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 1704965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 1705965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 1706c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 17072865474261a608c7873b87ba4af110d17907896dJohn McCall 17082865474261a608c7873b87ba4af110d17907896dJohn McCall if (FTI.NumArgs && FTI.ArgInfo[0].Param == 0) { 1709788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function 1710788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // definition. 17112865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 17122865474261a608c7873b87ba4af110d17907896dJohn McCall D.setInvalidType(true); 17132865474261a608c7873b87ba4af110d17907896dJohn McCall break; 17142865474261a608c7873b87ba4af110d17907896dJohn McCall } 17152865474261a608c7873b87ba4af110d17907896dJohn McCall 1716e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 1717e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = FTI.isVariadic; 1718e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = FTI.TypeQuals; 1719e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 17205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 17215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 17225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> ArgTys; 17232865474261a608c7873b87ba4af110d17907896dJohn McCall ArgTys.reserve(FTI.NumArgs); 17241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 1726d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 17278123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner QualType ArgTy = Param->getType(); 172878c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 17292dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 17302dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Adjust the parameter type. 1731beb58cb83bd53b79b80fc6f9952efd985934cbfcDouglas Gregor assert((ArgTy == adjustParameterType(ArgTy)) && "Unadjusted type?"); 17322dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 17335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 17345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 173572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 17362dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 17375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 17385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 17395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 17405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 17415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DeclType.Loc, diag::err_void_only_param); 17422ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 17438123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 17442ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 17452ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 17465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(FTI.ArgInfo[i].IdentLoc, 17474565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 17482ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 17498123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 17502ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 17512ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 17520953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 17532ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner Diag(DeclType.Loc, diag::err_void_param_qualified); 17541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17552ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 17562ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 17572ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 1758eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 1759eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 1760a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 1761183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 1762eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (BTy->getKind() == BuiltinType::Float) 1763eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 1764eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 17655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 176656a965c0f77c9e6bffd65cc8f8796442a8527381Fariborz Jahanian 176754e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 17685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1769465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1770465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl llvm::SmallVector<QualType, 4> Exceptions; 1771e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall if (FTI.hasExceptionSpec) { 1772e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.HasExceptionSpec = FTI.hasExceptionSpec; 1773e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.HasAnyExceptionSpec = FTI.hasAnyExceptionSpec; 1774e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall Exceptions.reserve(FTI.NumExceptions); 1775e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall for (unsigned ei = 0, ee = FTI.NumExceptions; ei != ee; ++ei) { 1776e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // FIXME: Preserve type source info. 1777e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType ET = GetTypeFromParser(FTI.Exceptions[ei].Ty); 1778e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // Check that the type is valid for an exception spec, and 1779e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall // drop it if not. 1780e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall if (!CheckSpecifiedExceptionType(ET, FTI.Exceptions[ei].Range)) 1781e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall Exceptions.push_back(ET); 1782e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 1783373920bd733b1d28fe7bf209945a62eb9248d948John McCall EPI.NumExceptions = Exceptions.size(); 1784e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Exceptions = Exceptions.data(); 1785ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 1786465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1787e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall T = Context.getFunctionType(T, ArgTys.data(), ArgTys.size(), EPI); 17885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 178904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 17905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 17915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1792f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 1793f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 17947bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara CXXScopeSpec &SS = DeclType.Mem.Scope(); 1795f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 17967bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (SS.isInvalid()) { 1797edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 1798edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 17997bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara } else if (isDependentScopeSpecifier(SS) || 18007bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara dyn_cast_or_null<CXXRecordDecl>(computeDeclContext(SS))) { 18011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 18027bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara = static_cast<NestedNameSpecifier*>(SS.getScopeRep()); 180387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 180487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 180587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 18067bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 18074a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 180887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 180987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 181087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 181187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 18129f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 181387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 18147bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara 181587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 181687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 181787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 18187bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // Note: if NNS is dependent, then its prefix (if any) is already 18197bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // included in ClsType; this does not hold if the NNS is 18207bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // nondependent: in this case (if there is indeed a prefix) 18217bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // ClsType needs to be wrapped into an elaborated type. 18227bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (NNSPrefix && !NNS->isDependent()) 18237bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getElaboratedType(ETK_None, NNSPrefix, ClsType); 182487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 182587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 1826f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 1827949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(DeclType.Mem.Scope().getBeginLoc(), 1828949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 1829949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 1830949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 1831f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 1832f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1833f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1834949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 18352865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildMemberPointerType(T, ClsType, DeclType.Loc, D.getIdentifier()); 1836949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 1837f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 1838949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 18392865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (DeclType.Mem.TypeQuals) { 18402865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); 1841f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1842f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 1843f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1844f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1845cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 1846cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 1847cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 1848cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1849cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1850c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 1851711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = const_cast<AttributeList*>(DeclType.getAttrs())) 1852711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 18535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1854971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1855971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (getLangOptions().CPlusPlus && T->isFunctionType()) { 1856183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 1857778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 1858971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1859708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // C++ 8.3.5p4: 1860708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // A cv-qualifier-seq shall only be part of the function type 1861708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // for a nonstatic member function, the function type to which a pointer 1862708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // to member refers, or the top-level function type of a function typedef 1863708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // declaration. 1864613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall bool FreeFunction; 1865613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall if (!D.getCXXScopeSpec().isSet()) { 1866613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (D.getContext() != Declarator::MemberContext || 1867613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall D.getDeclSpec().isFriendSpecified()); 1868613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } else { 1869613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall DeclContext *DC = computeDeclContext(D.getCXXScopeSpec()); 1870613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (DC && !DC->isRecord()); 1871613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } 1872613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall 1873971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (FnTy->getTypeQuals() != 0 && 1874971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef && 1875c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl (FreeFunction || 1876971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static)) { 1877971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (D.isFunctionDeclarator()) 1878971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis Diag(D.getIdentifierLoc(), diag::err_invalid_qualified_function_type); 1879971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis else 1880971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis Diag(D.getIdentifierLoc(), 1881c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl diag::err_invalid_qualified_typedef_function_type_use) 1882c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl << FreeFunction; 1883971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1884971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // Strip the cv-quals from the type. 1885e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 1886e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = 0; 1887e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 1888971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis T = Context.getFunctionType(FnTy->getResultType(), FnTy->arg_type_begin(), 1889e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FnTy->getNumArgs(), EPI); 1890971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 1891971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 18921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1893711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any undistributed attributes from the declarator. 1894711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) 1895711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = D.getAttributes()) 1896711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 1897711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1898711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnose any ignored type attributes. 1899711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) state.diagnoseIgnoredTypeAttrs(T); 1900711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1901737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // If there's a constexpr specifier, treat it as a top-level const. 1902737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl if (D.getDeclSpec().isConstexprSpecified()) { 1903737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl T.addConst(); 1904737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl } 1905737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl 1906a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // If there was an ellipsis in the declarator, the declaration declares a 1907a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack whose type may be a pack expansion type. 1908a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (D.hasEllipsis() && !T.isNull()) { 1909a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 1910a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // A declarator-id or abstract-declarator containing an ellipsis shall 1911a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // only be used in a parameter-declaration. Such a parameter-declaration 1912a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // is a parameter pack (14.5.3). [...] 1913a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor switch (D.getContext()) { 1914a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::PrototypeContext: 1915a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 1916a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // [...] When it is part of a parameter-declaration-clause, the 1917a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack is a function parameter pack (14.5.3). The type T 1918a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // of the declarator-id of the function parameter pack shall contain 1919a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // a template parameter pack; each template parameter pack in T is 1920a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // expanded by the function parameter pack. 1921a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 1922a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // We represent function parameter packs as function parameters whose 1923a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // type is a pack expansion. 1924a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (!T->containsUnexpandedParameterPack()) { 1925a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor Diag(D.getEllipsisLoc(), 1926a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor diag::err_function_parameter_pack_without_parameter_packs) 1927a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor << T << D.getSourceRange(); 1928a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 1929a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } else { 1930cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 1931a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 1932a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 1933a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 1934a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TemplateParamContext: 1935a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [temp.param]p15: 1936a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // If a template-parameter is a [...] is a parameter-declaration that 1937a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // declares a parameter pack (8.3.5), then the template-parameter is a 1938a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // template parameter pack (14.5.3). 1939a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 1940a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Note: core issue 778 clarifies that, if there are any unexpanded 1941a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter packs in the type of the non-type template parameter, then 1942a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // it expands those parameter packs. 1943a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (T->containsUnexpandedParameterPack()) 1944cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 194510738d36b150aa65206890c1c845cdba076e4200Douglas Gregor else if (!getLangOptions().CPlusPlus0x) 194610738d36b150aa65206890c1c845cdba076e4200Douglas Gregor Diag(D.getEllipsisLoc(), diag::err_variadic_templates); 1947a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 1948a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 1949a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::FileContext: 1950a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::KNRTypeListContext: 1951a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TypeNameContext: 1952a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::MemberContext: 1953a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockContext: 1954a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ForContext: 1955a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ConditionContext: 1956a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::CXXCatchContext: 1957a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockLiteralContext: 1958a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // FIXME: We may want to allow parameter packs in block-literal contexts 1959a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // in the future. 1960a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor Diag(D.getEllipsisLoc(), diag::err_ellipsis_in_declarator_not_parameter); 1961a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 1962a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 1963a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 1964a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 1965a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 1966bf1a028246d884a540aeafa38e89be59a269b072John McCall if (T.isNull()) 1967bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 1968bf1a028246d884a540aeafa38e89be59a269b072John McCall else if (D.isInvalidType()) 1969bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getTrivialTypeSourceInfo(T); 1970bf1a028246d884a540aeafa38e89be59a269b072John McCall return GetTypeSourceInfoForDeclarator(D, T, ReturnTypeInfo); 19715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 19725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 197351bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 197451bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 197551bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 1976f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 197751bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 197851bd803fbdade51d674598ed45da3d54190a656cJohn McCall TypeSpecLocFiller(const DeclSpec &DS) : DS(DS) {} 1979f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 198051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 198151bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 198251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 198351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 198451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 198551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 198651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 198751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 1988c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 1989c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 1990c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Handle the base type, which might not have been written explicitly. 1991c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 1992c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(false); 1993c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.getBaseLoc().initialize(SourceLocation()); 1994c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else { 1995c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(true); 1996c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getBaseLoc()); 1997c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 199854e14c4db764c0636160d26c5bbf491637c83a76John McCall 1999c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Protocol qualifiers. 200054e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 200154e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 200254e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 200354e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 200454e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 200554e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 200654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 200754e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 200854e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 200954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 201054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 201154e14c4db764c0636160d26c5bbf491637c83a76John McCall } 201251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 201354e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 201454e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 2015c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getPointeeLoc()); 201651bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 2017833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 2018a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 2019b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2020833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2021833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 2022833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 2023a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 2024833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TL.initialize(DS.getTypeSpecTypeLoc()); 2025833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 2026833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 2027833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2028e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeLoc OldTL = TInfo->getTypeLoc(); 2029e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo->getType()->getAs<ElaboratedType>()) { 2030e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeLoc ElabTL = cast<ElaboratedTypeLoc>(OldTL); 2031e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TemplateSpecializationTypeLoc NamedTL = 2032e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara cast<TemplateSpecializationTypeLoc>(ElabTL.getNamedTypeLoc()); 2033e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(NamedTL); 2034e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2035e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara else 2036e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<TemplateSpecializationTypeLoc>(OldTL)); 2037833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 2038cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 2039cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 2040cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 2041cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 2042cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 2043cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 2044cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 2045cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 2046cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 2047b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall assert(DS.getRepAsType()); 2048cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 2049b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2050cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 2051cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 2052ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 2053ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 2054ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 2055ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 2056ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 2057ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 2058ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 2059ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 2060ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 2061ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 2062ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 2063ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 2064ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 2065ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 2066ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 2067e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 2068e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 2069e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 2070253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 2071e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 2072b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2073e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 2074e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<ElaboratedTypeLoc>(TInfo->getTypeLoc())); 2075e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 2076e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2077e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2078e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 2079e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 2080e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 2081e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 2082e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setQualifierRange(SS.isEmpty() ? SourceRange(): SS.getRange()); 2083e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); 2084e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2085e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 2086e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 2087e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 2088253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 2089e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 2090b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2091e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 2092e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<DependentNameTypeLoc>(TInfo->getTypeLoc())); 2093e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 2094e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2095e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2096e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 2097e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 2098e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 2099e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 2100e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setQualifierRange(SS.isEmpty() ? SourceRange() : SS.getRange()); 2101e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara // FIXME: load appropriate source location. 210233500955d731c73717af52088b7fc0e7a85681e7John McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 210333500955d731c73717af52088b7fc0e7a85681e7John McCall } 210433500955d731c73717af52088b7fc0e7a85681e7John McCall void VisitDependentTemplateSpecializationTypeLoc( 210533500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypeLoc TL) { 210633500955d731c73717af52088b7fc0e7a85681e7John McCall ElaboratedTypeKeyword Keyword 210733500955d731c73717af52088b7fc0e7a85681e7John McCall = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 210833500955d731c73717af52088b7fc0e7a85681e7John McCall if (Keyword == ETK_Typename) { 210933500955d731c73717af52088b7fc0e7a85681e7John McCall TypeSourceInfo *TInfo = 0; 2110b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 211133500955d731c73717af52088b7fc0e7a85681e7John McCall if (TInfo) { 211233500955d731c73717af52088b7fc0e7a85681e7John McCall TL.copy(cast<DependentTemplateSpecializationTypeLoc>( 211333500955d731c73717af52088b7fc0e7a85681e7John McCall TInfo->getTypeLoc())); 211433500955d731c73717af52088b7fc0e7a85681e7John McCall return; 211533500955d731c73717af52088b7fc0e7a85681e7John McCall } 211633500955d731c73717af52088b7fc0e7a85681e7John McCall } 211733500955d731c73717af52088b7fc0e7a85681e7John McCall TL.initializeLocal(SourceLocation()); 211833500955d731c73717af52088b7fc0e7a85681e7John McCall TL.setKeywordLoc(Keyword != ETK_None 211933500955d731c73717af52088b7fc0e7a85681e7John McCall ? DS.getTypeSpecTypeLoc() 212033500955d731c73717af52088b7fc0e7a85681e7John McCall : SourceLocation()); 212133500955d731c73717af52088b7fc0e7a85681e7John McCall const CXXScopeSpec& SS = DS.getTypeSpecScope(); 212233500955d731c73717af52088b7fc0e7a85681e7John McCall TL.setQualifierRange(SS.isEmpty() ? SourceRange() : SS.getRange()); 212333500955d731c73717af52088b7fc0e7a85681e7John McCall // FIXME: load appropriate source location. 2124e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeLoc()); 2125e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2126e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 212751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 212851bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 212951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.initialize(DS.getTypeSpecTypeLoc()); 213051bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 213151bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 2132eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 213351bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 213451bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 2135f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 213651bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 213751bd803fbdade51d674598ed45da3d54190a656cJohn McCall DeclaratorLocFiller(const DeclaratorChunk &Chunk) : Chunk(Chunk) {} 21384adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 213951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 21409f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 214151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 21424adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 214351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 214451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 214551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 21464adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 214751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 214851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 214951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 21504adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 215151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 215251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 215351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 21544adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 215551bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 215651bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 215751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 215851bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: nested name specifier 21594adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 216051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 216151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 216254e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 216354e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 216451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 216551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 216651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 216751bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 216851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 216951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 217051bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 217151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 217251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 217351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 217451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 217551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 217651bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 217751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 217851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 217951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLParenLoc(Chunk.Loc); 218051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRParenLoc(Chunk.EndLoc); 2181dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor TL.setTrailingReturn(!!Chunk.Fun.TrailingReturnType); 218251bd803fbdade51d674598ed45da3d54190a656cJohn McCall 218351bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 218454e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 2185d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 218654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 21874adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 218851bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 21894adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 2190075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara void VisitParenTypeLoc(ParenTypeLoc TL) { 2191075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Chunk.Kind == DeclaratorChunk::Paren); 2192075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setLParenLoc(Chunk.Loc); 2193075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setRParenLoc(Chunk.EndLoc); 2194075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 21951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 219651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 21979f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 21984adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 219951bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 220051bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 22014adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 2202a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 220351bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 220451bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 220505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// 220605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// \param ReturnTypeInfo For declarators whose return type does not show 220705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// up in the normal place in the declaration specifiers (such as a C++ 220805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// conversion function), this pointer will refer to a type source information 220905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// for that return type. 2210a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 221105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas GregorSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T, 221205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo) { 2213a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 2214a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 221551bd803fbdade51d674598ed45da3d54190a656cJohn McCall 2216a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Handle parameter packs whose type is a pack expansion. 2217a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (isa<PackExpansionType>(T)) { 2218a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor cast<PackExpansionTypeLoc>(CurrTL).setEllipsisLoc(D.getEllipsisLoc()); 2219a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 2220a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2221a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 22228ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 222351bd803fbdade51d674598ed45da3d54190a656cJohn McCall DeclaratorLocFiller(D.getTypeObject(i)).Visit(CurrTL); 222451bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 22254adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 2226f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 2227b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // If we have different source information for the return type, use 2228b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // that. This really only applies to C++ conversion functions. 2229b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ReturnTypeInfo) { 223005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeLoc TL = ReturnTypeInfo->getTypeLoc(); 223105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); 223205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); 2233b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } else { 2234b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeSpecLocFiller(D.getDeclSpec()).Visit(CurrTL); 223505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor } 223605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 2237a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 22384adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 22394adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 2240a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 2241b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallParsedType Sema::CreateParsedType(QualType T, TypeSourceInfo *TInfo) { 22421bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 22431bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 22441bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 2245eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 2246eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor TypeAlignment); 2247a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 22481bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 22491bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 2250b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return ParsedType::make(QualType(LocT, 0)); 22511bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 22521bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 22531bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 22541bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 225535d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis assert(false && "LocInfoType leaked into the type system; an opaque TypeTy*" 225635d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 225735d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 22581bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 22591bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 2260f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallTypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 22615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 22625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 22635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 22641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2265402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor TagDecl *OwnedTag = 0; 2266bf1a028246d884a540aeafa38e89be59a269b072John McCall TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S, &OwnedTag); 2267bf1a028246d884a540aeafa38e89be59a269b072John McCall QualType T = TInfo->getType(); 22685153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 2269809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 22705912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 2271402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus) { 2272402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 22736d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 22746d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor 2275402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++0x [dcl.type]p3: 2276402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // A type-specifier-seq shall not define a class or enumeration 2277402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // unless it appears in the type-id of an alias-declaration 2278402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // (7.1.3). 2279402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (OwnedTag && OwnedTag->isDefinition()) 2280402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(OwnedTag->getLocation(), diag::err_type_defined_in_type_specifier) 2281402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(OwnedTag); 2282402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 2283402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 2284b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return CreateParsedType(T, TInfo); 22855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 22865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2287c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 2288c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 2289c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 2290c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 2291c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 2292232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 2293232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 2294c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 2295c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 22961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 2297c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 22980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 2299232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 2300232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Clause 6.7.3 - Type qualifiers: "No type shall be qualified by qualifiers 2301232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // for two or more different address spaces." 2302232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 2303c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 2304e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 2305c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 2306232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 23071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2308232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 2309545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 2310f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2311e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 2312c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 2313232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 2314545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *ASArgExpr = static_cast<Expr *>(Attr.getArg(0)); 2315232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 2316ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (ASArgExpr->isTypeDependent() || ASArgExpr->isValueDependent() || 2317ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 2318dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_space_not_int) 2319dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner << ASArgExpr->getSourceRange(); 2320e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 2321c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 2322232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 2323232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 2324efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 2325efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 2326efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 2327efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 2328efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 2329e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 2330efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 2331efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 2332efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 2333efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 2334efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 23350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 2336efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 2337efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 23380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall << Qualifiers::MaxAddressSpace << ASArgExpr->getSourceRange(); 2339e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 2340efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 2341efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 2342efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 23431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 2344f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 2345c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 2346c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 2347711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// handleObjCGCTypeAttr - Process the __attribute__((objc_gc)) type 2348711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// attribute on the specified type. Returns true to indicate that 2349711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// the attribute was handled, false to indicate that the type does 2350711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// not permit the attribute. 2351711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 2352711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 2353711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 2354711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 2355711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2356711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this isn't some kind of pointer. 2357711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!type->isPointerType() && 2358711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isObjCObjectPointerType() && 2359711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isBlockPointerType()) 2360711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2361711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2362711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (type.getObjCGCAttr() != Qualifiers::GCNone) { 2363711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_multiple_objc_gc); 2364711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2365711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2366d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 23671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2368d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 2369711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!attr.getParameterName()) { 2370711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 2371ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian << "objc_gc" << 1; 2372711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2373711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2374ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 23750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 2376711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 2377711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2378711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2379711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2380d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 2381711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getParameterName()->isStr("weak")) 23820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 2383711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (attr.getParameterName()->isStr("strong")) 23840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 2385d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 2386711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_type_not_supported) 2387711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << "objc_gc" << attr.getParameterName(); 2388711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2389711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2390d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 23911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2392711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = S.Context.getObjCGCQualType(type, GCAttr); 2393711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2394d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 2395d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 2396e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCallnamespace { 2397e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// A helper class to unwrap a type down to a function for the 2398e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// purposes of applying attributes there. 2399e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// 2400e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// Use: 2401e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// FunctionTypeUnwrapper unwrapped(SemaRef, T); 2402e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// if (unwrapped.isFunctionType()) { 2403e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// const FunctionType *fn = unwrapped.get(); 2404e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// // change fn somehow 2405e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// T = unwrapped.wrap(fn); 2406e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// } 2407e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall struct FunctionTypeUnwrapper { 2408e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall enum WrapKind { 2409e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Desugar, 2410e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Parens, 2411e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Pointer, 2412e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall BlockPointer, 2413e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Reference, 2414e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall MemberPointer 2415e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 2416e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2417e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType Original; 2418e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *Fn; 2419e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall llvm::SmallVector<unsigned char /*WrapKind*/, 8> Stack; 2420e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2421e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionTypeUnwrapper(Sema &S, QualType T) : Original(T) { 2422e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall while (true) { 2423e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *Ty = T.getTypePtr(); 2424e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<FunctionType>(Ty)) { 2425e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = cast<FunctionType>(Ty); 2426e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 2427e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ParenType>(Ty)) { 2428e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ParenType>(Ty)->getInnerType(); 2429e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Parens); 2430e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<PointerType>(Ty)) { 2431e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<PointerType>(Ty)->getPointeeType(); 2432e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Pointer); 2433e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<BlockPointerType>(Ty)) { 2434e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<BlockPointerType>(Ty)->getPointeeType(); 2435e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(BlockPointer); 2436e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<MemberPointerType>(Ty)) { 2437e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<MemberPointerType>(Ty)->getPointeeType(); 2438e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(MemberPointer); 2439e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ReferenceType>(Ty)) { 2440e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ReferenceType>(Ty)->getPointeeType(); 2441e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Reference); 2442e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else { 2443e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *DTy = Ty->getUnqualifiedDesugaredType(); 2444e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (Ty == DTy) { 2445e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = 0; 2446e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 2447e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2448e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2449e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = QualType(DTy, 0); 2450e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Desugar); 2451e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2452e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2453e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2454e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2455e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall bool isFunctionType() const { return (Fn != 0); } 2456e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *get() const { return Fn; } 2457e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2458e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(Sema &S, const FunctionType *New) { 2459e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // If T wasn't modified from the unwrapped type, do nothing. 2460e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (New == get()) return Original; 2461e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2462e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = New; 2463e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(S.Context, Original, 0); 2464e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2465e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2466e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall private: 2467e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, QualType Old, unsigned I) { 2468e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) 2469e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(Fn, Old.getQualifiers()); 2470e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2471e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Build up the inner type, applying the qualifiers from the old 2472e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // type to the new type. 2473e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall SplitQualType SplitOld = Old.split(); 2474e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2475e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // As a special case, tail-recurse if there are no qualifiers. 2476e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (SplitOld.second.empty()) 2477e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, SplitOld.first, I); 2478e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(wrap(C, SplitOld.first, I), SplitOld.second); 2479e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2480e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2481e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, const Type *Old, unsigned I) { 2482e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) return QualType(Fn, 0); 2483e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2484e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall switch (static_cast<WrapKind>(Stack[I++])) { 2485e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Desugar: 2486e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // This is the point at which we potentially lose source 2487e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // information. 2488e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, Old->getUnqualifiedDesugaredType(), I); 2489e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2490e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Parens: { 2491e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<ParenType>(Old)->getInnerType(), I); 2492e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getParenType(New); 2493e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2494e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2495e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Pointer: { 2496e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<PointerType>(Old)->getPointeeType(), I); 2497e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getPointerType(New); 2498e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2499e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2500e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case BlockPointer: { 2501e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<BlockPointerType>(Old)->getPointeeType(),I); 2502e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getBlockPointerType(New); 2503e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2504e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2505e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case MemberPointer: { 2506e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const MemberPointerType *OldMPT = cast<MemberPointerType>(Old); 2507e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldMPT->getPointeeType(), I); 2508e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getMemberPointerType(New, OldMPT->getClass()); 2509e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2510e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2511e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Reference: { 2512e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const ReferenceType *OldRef = cast<ReferenceType>(Old); 2513e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldRef->getPointeeType(), I); 2514e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<LValueReferenceType>(OldRef)) 2515e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getLValueReferenceType(New, OldRef->isSpelledAsLValue()); 2516e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall else 2517e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getRValueReferenceType(New); 2518e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2519e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2520e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2521e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall llvm_unreachable("unknown wrapping kind"); 2522e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return QualType(); 2523e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 2524e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 2525e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall} 2526e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2527711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Process an individual function attribute. Returns true to 2528711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// indicate that the attribute was handled, false if it wasn't. 2529711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 2530711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 2531711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 2532711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 2533e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2534711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionTypeUnwrapper unwrapped(S, type); 25352455636163fdd18581d7fdae816433f886d88213Mike Stump 2536711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getKind() == AttributeList::AT_noreturn) { 2537711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) 253804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 2539e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 2540e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Delay if this is not a function type. 2541711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 2542711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2543425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 2544425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 2545711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withNoReturn(true); 2546711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 2547711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2548711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2549425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 2550711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getKind() == AttributeList::AT_regparm) { 2551711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned value; 2552711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, value)) 2553711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 25541e030eb1194763b42c1752723be23b1515f48981John McCall 2555711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this is not a function type. 2556711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 2557008df5dce3938456ae7ea2e7ab3b2d12391ebf3eJohn McCall return false; 25581e030eb1194763b42c1752723be23b1515f48981John McCall 2559e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionType::ExtInfo EI = 2560711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unwrapped.get()->getExtInfo().withRegParm(value); 2561711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 2562711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2563425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 2564425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 256504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 2566711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 2567711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 2568711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2569f82b4e85b1219295cad4b5851b035575bc293010John McCall 257004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if the type didn't work out to a function. 2571711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) return false; 257204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 2573711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionType *fn = unwrapped.get(); 2574711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CCOld = fn->getCallConv(); 2575064f7db69def9299f5f4d9a32114afc10b6a6420Charles Davis if (S.Context.getCanonicalCallConv(CC) == 2576e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Context.getCanonicalCallConv(CCOld)) { 2577711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2578711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2579e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 258004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 258104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CCOld != CC_Default) { 258204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Should we diagnose reapplications of the same convention? 2583711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 258404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC) 258504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CCOld); 2586711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2587711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 258804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 258904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 259004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 259104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 2592711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isa<FunctionNoProtoType>(fn)) { 2593711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_knr) 259404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 2595711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2596711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 259704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 259804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 2599711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(fn); 260004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 2601711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_varargs) 260204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 2603711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2604711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 260504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 260604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 2607f82b4e85b1219295cad4b5851b035575bc293010John McCall 2608711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withCallingConv(CC); 2609711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 2610711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2611f82b4e85b1219295cad4b5851b035575bc293010John McCall} 2612f82b4e85b1219295cad4b5851b035575bc293010John McCall 26136e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 26146e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 26156e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 26166e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 26176e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 26186e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 26196e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 2620788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, 2621788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Sema &S) { 262256affbcaeff9a01caa70b2a237f7e6ac31c8ded6Bob Wilson // Check the attribute arguments. 26236e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 26246e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2625e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 26266e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 26276e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 26286e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 26296e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 2630ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 2631ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 26326e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 26336e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << "vector_size" << sizeExpr->getSourceRange(); 2634e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 26356e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 26366e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 26376e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the base type must be integer or float, and can't already be a vector. 2638f60946222721d9ba3c059563935c17b84703187aDouglas Gregor if (!CurType->isIntegerType() && !CurType->isRealFloatingType()) { 26396e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 2640e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 26416e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 26426e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 26436e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 26446e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 26456e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 26466e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 26476e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 26486e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 26496e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 26506e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 2651e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 26526e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 26536e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 26546e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 26556e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 26566e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 2657e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 26586e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 26596e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 26606e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 26616e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 26626e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 2663788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, 2664e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::GenericVector); 26656e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 26666e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 26674211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// HandleNeonVectorTypeAttr - The "neon_vector_type" and 26684211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// "neon_polyvector_type" attributes are used to create vector types that 26694211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// are mangled according to ARM's ABI. Otherwise, these types are identical 26704211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// to those created with the "vector_size" attribute. Unlike "vector_size" 26714211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// the argument to these Neon attributes is the number of vector elements, 26724211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// not the vector size in bytes. The vector width and element type must 26734211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// match one of the standard Neon vector types. 26744211bb68cff1f310be280f66a59520548ef99d8fBob Wilsonstatic void HandleNeonVectorTypeAttr(QualType& CurType, 26754211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const AttributeList &Attr, Sema &S, 26764211bb68cff1f310be280f66a59520548ef99d8fBob Wilson VectorType::VectorKind VecKind, 26774211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const char *AttrName) { 26784211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Check the attribute arguments. 26794211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (Attr.getNumArgs() != 1) { 26804211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 26814211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 26824211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 26834211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 26844211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The number of elements must be an ICE. 26854211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Expr *numEltsExpr = static_cast<Expr *>(Attr.getArg(0)); 26864211bb68cff1f310be280f66a59520548ef99d8fBob Wilson llvm::APSInt numEltsInt(32); 26874211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (numEltsExpr->isTypeDependent() || numEltsExpr->isValueDependent() || 26884211bb68cff1f310be280f66a59520548ef99d8fBob Wilson !numEltsExpr->isIntegerConstantExpr(numEltsInt, S.Context)) { 26894211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 26904211bb68cff1f310be280f66a59520548ef99d8fBob Wilson << AttrName << numEltsExpr->getSourceRange(); 26914211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 26924211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 26934211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 26944211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Only certain element types are supported for Neon vectors. 26954211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const BuiltinType* BTy = CurType->getAs<BuiltinType>(); 26964211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (!BTy || 26974211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (VecKind == VectorType::NeonPolyVector && 26984211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::SChar && 26994211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short) || 27004211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (BTy->getKind() != BuiltinType::SChar && 27014211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UChar && 27024211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short && 27034211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UShort && 27044211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Int && 27054211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UInt && 27064211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::LongLong && 27074211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::ULongLong && 27084211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Float)) { 27094211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) <<CurType; 27104211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 27114211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 27124211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 27134211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The total size of the vector must be 64 or 128 bits. 27144211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 27154211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned numElts = static_cast<unsigned>(numEltsInt.getZExtValue()); 27164211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned vecSize = typeSize * numElts; 27174211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (vecSize != 64 && vecSize != 128) { 27184211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_bad_neon_vector_size) << CurType; 27194211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 27204211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 27214211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 27224211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 27234211bb68cff1f310be280f66a59520548ef99d8fBob Wilson CurType = S.Context.getVectorType(CurType, numElts, VecKind); 27244211bb68cff1f310be280f66a59520548ef99d8fBob Wilson} 27254211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 2726711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, QualType &type, 2727711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool isDeclSpec, AttributeList *attrs) { 2728c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 2729c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 2730c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 2731c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 2732711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2733711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 2734711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 2735711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr = *attrs; 2736711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr.getNext(); 2737711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2738e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Skip attributes that were marked to be invalid. 2739711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 2740e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara continue; 2741e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2742b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 2743b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 2744711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 2745c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner default: break; 274604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 2747c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner case AttributeList::AT_address_space: 2748711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleAddressSpaceTypeAttribute(type, attr, state.getSema()); 2749c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 2750711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 2751711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!handleObjCPointerTypeAttr(state, attr, type)) 2752711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttr(state, attr, type); 2753d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 275404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_vector_size: 2755711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleVectorSizeAttr(type, attr, state.getSema()); 2756f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 27574211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 2758711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 2759711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonVector, "neon_vector_type"); 27604211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 27614211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 2762711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 2763711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonPolyVector, 27644211bb68cff1f310be280f66a59520548ef99d8fBob Wilson "neon_polyvector_type"); 27654211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 276604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 2767711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 2768711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Never process function type attributes as part of the 2769711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // declaration-specifiers. 2770711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isDeclSpec) 2771711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclSpec(state, attr, type); 2772711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2773711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, handle the possible delays. 2774711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (!handleFunctionTypeAttr(state, attr, type)) 2775711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttr(state, attr, type); 27766e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 2777c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 2778711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attrs = next)); 2779232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 2780232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 27811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 27824ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 27834ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 27844ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 278586447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 278686447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 278786447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 278886447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 278986447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 27904ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 27914ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 27924ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 27934ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 27944ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 27954ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 27961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @param PD The partial diagnostic that will be printed out if T is not a 2797b790661a15d93941d2c33a0ea328254277b3d7e3Anders Carlsson/// complete type. 27984ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 27994ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 28004ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 280191a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 28028c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson const PartialDiagnostic &PD, 28038c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson std::pair<SourceLocation, 28048c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson PartialDiagnostic> Note) { 280591a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson unsigned diag = PD.getDiagID(); 28061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2807573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 2808573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 2809690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 2810690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 2811690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 28121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 2813690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 2814690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 28154ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 28164ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (!T->isIncompleteType()) 28174ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 28184ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 2819d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 2820923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 2821923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 2822923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 282389c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor if (const ConstantArrayType *Array = Context.getAsConstantArrayType(T)) 2824923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 2825923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 28262943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 2827d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 2828972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 2829972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 2830d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 28315842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor /*Complain=*/diag != 0); 28321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 2833d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 2834d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass()) { 2835b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor MemberSpecializationInfo *MSInfo = Rec->getMemberSpecializationInfo(); 2836b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor assert(MSInfo && "Missing member specialization information?"); 2837357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 2838b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor if (MSInfo->getTemplateSpecializationKind() 2839972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor != TSK_ExplicitSpecialization) 2840f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 2841f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 2842f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 2843f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor /*Complain=*/diag != 0); 2844d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 2845d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 2846d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 28472943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 28485842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor if (diag == 0) 28495842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 28501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2851916c870442978db40404d51348cdf5524e506faaJohn McCall const TagType *Tag = T->getAs<TagType>(); 285201620704304f819b82ecef769ec114e541a364d7Rafael Espindola 285301620704304f819b82ecef769ec114e541a364d7Rafael Espindola // Avoid diagnosing invalid decls as incomplete. 285401620704304f819b82ecef769ec114e541a364d7Rafael Espindola if (Tag && Tag->getDecl()->isInvalidDecl()) 285501620704304f819b82ecef769ec114e541a364d7Rafael Espindola return true; 285601620704304f819b82ecef769ec114e541a364d7Rafael Espindola 2857916c870442978db40404d51348cdf5524e506faaJohn McCall // Give the external AST source a chance to complete the type. 2858916c870442978db40404d51348cdf5524e506faaJohn McCall if (Tag && Tag->getDecl()->hasExternalLexicalStorage()) { 2859916c870442978db40404d51348cdf5524e506faaJohn McCall Context.getExternalSource()->CompleteType(Tag->getDecl()); 2860916c870442978db40404d51348cdf5524e506faaJohn McCall if (!Tag->isIncompleteType()) 2861916c870442978db40404d51348cdf5524e506faaJohn McCall return false; 2862916c870442978db40404d51348cdf5524e506faaJohn McCall } 2863916c870442978db40404d51348cdf5524e506faaJohn McCall 28644ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 286591a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson Diag(Loc, PD) << T; 28663c0eb160ca1361a82b9f15b3b40a2425adc14d0fEli Friedman 28678c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson // If we have a note, produce it. 28688c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson if (!Note.first.isInvalid()) 28698c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson Diag(Note.first, Note.second); 28708c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson 28714ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 287201620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 28734ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 28741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 28754ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 28764ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 28774ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor << QualType(Tag, 0); 28784ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 28794ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 28804ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 2881e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 2882fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 2883fe6b2d481d91140923f4541f273b253291884214Douglas Gregor const PartialDiagnostic &PD) { 2884fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PD, 2885fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 2886fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 2887fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 2888fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 2889fe6b2d481d91140923f4541f273b253291884214Douglas Gregor unsigned DiagID) { 2890fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PDiag(DiagID), 2891fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 2892fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 2893fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 2894465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Retrieve a version of the type 'T' that is elaborated by Keyword 2895465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// and qualified by the nested-name-specifier contained in SS. 2896465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraQualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, 2897465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara const CXXScopeSpec &SS, QualType T) { 2898465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (T.isNull()) 2899e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 2900465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS; 2901e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (SS.isValid()) 2902465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 2903465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara else { 2904465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (Keyword == ETK_None) 2905465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T; 2906465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = 0; 2907465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 2908465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return Context.getElaboratedType(Keyword, NNS, T); 2909e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 2910af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 29112a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildTypeofExprType(Expr *E, SourceLocation Loc) { 29122a984cad5ac3fdceeff2bd99daa7b90979313475John McCall ExprResult ER = CheckPlaceholderExpr(E, Loc); 29132a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 29142a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 29152a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 29162b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian if (!E->isTypeDependent()) { 29172b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian QualType T = E->getType(); 2918aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian if (const TagType *TT = T->getAs<TagType>()) 2919aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian DiagnoseUseOfDecl(TT->getDecl(), E->getExprLoc()); 29202b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian } 2921af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 2922af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 2923af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 29242a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildDecltypeType(Expr *E, SourceLocation Loc) { 29252a984cad5ac3fdceeff2bd99daa7b90979313475John McCall ExprResult ER = CheckPlaceholderExpr(E, Loc); 29262a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 29272a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 29284b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 2929af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getDecltypeType(E); 2930af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 2931