SemaType.cpp revision 262bc18e32500558af7cb0afa205b34bd37bafed
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 14f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor#include "clang/Sema/ScopeInfo.h" 152d88708cbe4e4ec5e04e4acb6bd7f5be68557379John McCall#include "clang/Sema/SemaInternal.h" 167cd088e519d7e6caa4c4c12db52e0e4ae35d25c2John McCall#include "clang/Sema/Template.h" 17207f4d8543529221932af82836016a2ef066c917Peter Collingbourne#include "clang/Basic/OpenCL.h" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 1936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor#include "clang/AST/ASTMutationListener.h" 20a8f32e0965ee19ecc53cd796e34268377a20357cDouglas Gregor#include "clang/AST/CXXInheritance.h" 21980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 222943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor#include "clang/AST/DeclTemplate.h" 234adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 2451bd803fbdade51d674598ed45da3d54190a656cJohn McCall#include "clang/AST/TypeLocVisitor.h" 25e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 2691a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson#include "clang/Basic/PartialDiagnostic.h" 27d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis#include "clang/Basic/TargetInfo.h" 282792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall#include "clang/Lex/Preprocessor.h" 29bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman#include "clang/Parse/ParseDiagnostic.h" 3019510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 31f85e193739c953358c865005855253af4f68a497John McCall#include "clang/Sema/DelayedDiagnostic.h" 32d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor#include "clang/Sema/Lookup.h" 334994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl#include "llvm/ADT/SmallPtrSet.h" 3487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor#include "llvm/Support/ErrorHandling.h" 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 375db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// isOmittedBlockReturnType - Return true if this declarator is missing a 385db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// return type because this is a omitted return type on a block literal. 398ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redlstatic bool isOmittedBlockReturnType(const Declarator &D) { 405db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getContext() != Declarator::BlockLiteralContext || 418ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl D.getDeclSpec().hasTypeSpecifier()) 425db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 435db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 445db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 0) 45a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^{ ... } 465db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 475db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 1 && 485db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner D.getTypeObject(0).Kind == DeclaratorChunk::Function) 49a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^(int X, float Y) { ... } 505db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 515db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 525db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner} 535db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 542792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall/// diagnoseBadTypeAttribute - Diagnoses a type attribute which 552792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall/// doesn't apply to the given type. 562792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCallstatic void diagnoseBadTypeAttribute(Sema &S, const AttributeList &attr, 572792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall QualType type) { 58108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth bool useExpansionLoc = false; 592792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 602792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall unsigned diagID = 0; 612792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall switch (attr.getKind()) { 622792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall case AttributeList::AT_objc_gc: 632792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagID = diag::warn_pointer_attribute_wrong_type; 64108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth useExpansionLoc = true; 652792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall break; 662792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 6705d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis case AttributeList::AT_objc_ownership: 6805d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis diagID = diag::warn_objc_object_attribute_wrong_type; 69108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth useExpansionLoc = true; 7005d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis break; 7105d4876a64865e34366b58fc8a6848c3cde895d9Argyrios Kyrtzidis 722792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall default: 732792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall // Assume everything else was a function attribute. 742792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagID = diag::warn_function_attribute_wrong_type; 752792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall break; 762792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 772792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 782792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall SourceLocation loc = attr.getLoc(); 795f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef name = attr.getName()->getName(); 802792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 812792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall // The GC attributes are usually written with macros; special-case them. 82108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth if (useExpansionLoc && loc.isMacroID() && attr.getParameterName()) { 83834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (attr.getParameterName()->isStr("strong")) { 84834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (S.findMacroSpelling(loc, "__strong")) name = "__strong"; 85834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall } else if (attr.getParameterName()->isStr("weak")) { 86834e3f6c77d9ac03997a3f0c56934edcf406a355John McCall if (S.findMacroSpelling(loc, "__weak")) name = "__weak"; 872792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 882792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall } 892792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 902792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall S.Diag(loc, diagID) << name << type; 912792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall} 922792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 93711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// objc_gc applies to Objective-C pointers or, otherwise, to the 94711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// smallest available pointer type (i.e. 'void*' in 'void**'). 95711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define OBJC_POINTER_TYPE_ATTRS_CASELIST \ 96f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_objc_gc: \ 97b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributeList::AT_objc_ownership 98711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 99711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// Function type attributes. 100711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define FUNCTION_TYPE_ATTRS_CASELIST \ 101711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_noreturn: \ 102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: \ 103711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: \ 104711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: \ 105711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: \ 106711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: \ 107414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_regparm: \ 108414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs \ 109711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 110711c52bb20d0c69063b52a99826fb7d2835501f1John McCallnamespace { 111711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// An object which stores processing state for the entire 112711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// GetTypeForDeclarator process. 113711c52bb20d0c69063b52a99826fb7d2835501f1John McCall class TypeProcessingState { 114711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &sema; 115711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 116711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The declarator being processed. 117711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator; 118711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 119711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The index of the declarator chunk we're currently processing. 120711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// May be the total number of valid chunks, indicating the 121711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// DeclSpec. 122711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex; 123711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 124711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Whether there are non-trivial modifications to the decl spec. 125711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool trivial; 126711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1277ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall /// Whether we saved the attributes in the decl spec. 1287ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall bool hasSavedAttrs; 1297ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 130711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The original set of attributes on the DeclSpec. 1315f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<AttributeList*, 2> savedAttrs; 132711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 133711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// A list of attributes to diagnose the uselessness of when the 134711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// processing is complete. 1355f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<AttributeList*, 2> ignoredTypeAttrs; 136711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 137711c52bb20d0c69063b52a99826fb7d2835501f1John McCall public: 138711c52bb20d0c69063b52a99826fb7d2835501f1John McCall TypeProcessingState(Sema &sema, Declarator &declarator) 139711c52bb20d0c69063b52a99826fb7d2835501f1John McCall : sema(sema), declarator(declarator), 140711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex(declarator.getNumTypeObjects()), 1417ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall trivial(true), hasSavedAttrs(false) {} 142711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 143711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &getSema() const { 144711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return sema; 145711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 146711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 147711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &getDeclarator() const { 148711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator; 149711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 150711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 151711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned getCurrentChunkIndex() const { 152711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return chunkIndex; 153711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 154711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 155711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void setCurrentChunkIndex(unsigned idx) { 156711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(idx <= declarator.getNumTypeObjects()); 157711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunkIndex = idx; 158711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 159711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 160711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&getCurrentAttrListRef() const { 161711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(chunkIndex <= declarator.getNumTypeObjects()); 162711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (chunkIndex == declarator.getNumTypeObjects()) 163711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return getMutableDeclSpec().getAttributes().getListRef(); 164711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return declarator.getTypeObject(chunkIndex).getAttrListRef(); 165711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 166711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 167711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Save the current set of attributes on the DeclSpec. 168711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void saveDeclSpecAttrs() { 169711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't try to save them multiple times. 1707ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (hasSavedAttrs) return; 171711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 172711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &spec = getMutableDeclSpec(); 173711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (AttributeList *attr = spec.getAttributes().getList(); attr; 174711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr = attr->getNext()) 175711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.push_back(attr); 176711c52bb20d0c69063b52a99826fb7d2835501f1John McCall trivial &= savedAttrs.empty(); 1777ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall hasSavedAttrs = true; 178711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 179711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 180711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Record that we had nowhere to put the given type attribute. 181711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// We will diagnose such attributes later. 182711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void addIgnoredTypeAttr(AttributeList &attr) { 183711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ignoredTypeAttrs.push_back(&attr); 184711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 185711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 186711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Diagnose all the ignored type attributes, given that the 187711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// declarator worked out to the given type. 188711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void diagnoseIgnoredTypeAttrs(QualType type) const { 1895f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner for (SmallVectorImpl<AttributeList*>::const_iterator 190711c52bb20d0c69063b52a99826fb7d2835501f1John McCall i = ignoredTypeAttrs.begin(), e = ignoredTypeAttrs.end(); 1912792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall i != e; ++i) 1922792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(getSema(), **i, type); 193711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 194711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 195711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ~TypeProcessingState() { 196711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (trivial) return; 197711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 198711c52bb20d0c69063b52a99826fb7d2835501f1John McCall restoreDeclSpecAttrs(); 199711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 200711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 201711c52bb20d0c69063b52a99826fb7d2835501f1John McCall private: 202711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclSpec &getMutableDeclSpec() const { 203711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return const_cast<DeclSpec&>(declarator.getDeclSpec()); 204711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 205711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 206711c52bb20d0c69063b52a99826fb7d2835501f1John McCall void restoreDeclSpecAttrs() { 2077ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall assert(hasSavedAttrs); 2087ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 2097ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (savedAttrs.empty()) { 2107ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall getMutableDeclSpec().getAttributes().set(0); 2117ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall return; 2127ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall } 2137ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall 214711c52bb20d0c69063b52a99826fb7d2835501f1John McCall getMutableDeclSpec().getAttributes().set(savedAttrs[0]); 215711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = savedAttrs.size() - 1; i != e; ++i) 216711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs[i]->setNext(savedAttrs[i+1]); 217711c52bb20d0c69063b52a99826fb7d2835501f1John McCall savedAttrs.back()->setNext(0); 218711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 219711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 220711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 221711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// Basically std::pair except that we really want to avoid an 222711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// implicit operator= for safety concerns. It's also a minor 223711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// link-time optimization for this to be a private type. 224711c52bb20d0c69063b52a99826fb7d2835501f1John McCall struct AttrAndList { 225711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The attribute. 226711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &first; 227711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 228711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /// The head of the list the attribute is currently in. 229711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&second; 230711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 231711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttrAndList(AttributeList &attr, AttributeList *&head) 232711c52bb20d0c69063b52a99826fb7d2835501f1John McCall : first(attr), second(head) {} 233711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 23404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 23504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 236711c52bb20d0c69063b52a99826fb7d2835501f1John McCallnamespace llvm { 237711c52bb20d0c69063b52a99826fb7d2835501f1John McCall template <> struct isPodLike<AttrAndList> { 238711c52bb20d0c69063b52a99826fb7d2835501f1John McCall static const bool value = true; 239711c52bb20d0c69063b52a99826fb7d2835501f1John McCall }; 240711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 241711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 242711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrIntoList(AttributeList &attr, AttributeList *&head) { 243711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setNext(head); 244711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = &attr; 245711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 246711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 247711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void spliceAttrOutOfList(AttributeList &attr, AttributeList *&head) { 248711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (head == &attr) { 249711c52bb20d0c69063b52a99826fb7d2835501f1John McCall head = attr.getNext(); 250711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 25104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 252711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 253711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *cur = head; 254711c52bb20d0c69063b52a99826fb7d2835501f1John McCall while (true) { 255711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(cur && cur->getNext() && "ran out of attrs?"); 256711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (cur->getNext() == &attr) { 257711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur->setNext(attr.getNext()); 258711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 259711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 260711c52bb20d0c69063b52a99826fb7d2835501f1John McCall cur = cur->getNext(); 261711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 262711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 263711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 264711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void moveAttrFromListToList(AttributeList &attr, 265711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&fromList, 266711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&toList) { 267711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, fromList); 268711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrIntoList(attr, toList); 269711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 270711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 271711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, 272711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type, bool isDeclSpec, 273711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attrs); 274711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 275711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 276711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 277711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type); 278711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 279711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 280711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type); 281711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 282b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 283f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, QualType &type); 284f85e193739c953358c865005855253af4f68a497John McCall 285711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCPointerTypeAttr(TypeProcessingState &state, 286711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, QualType &type) { 287f85e193739c953358c865005855253af4f68a497John McCall if (attr.getKind() == AttributeList::AT_objc_gc) 288f85e193739c953358c865005855253af4f68a497John McCall return handleObjCGCTypeAttr(state, attr, type); 289b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis assert(attr.getKind() == AttributeList::AT_objc_ownership); 290b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis return handleObjCOwnershipTypeAttr(state, attr, type); 291711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 292711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 293711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Given that an objc_gc attribute was written somewhere on a 294711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declaration *other* than on the declarator itself (for which, use 295711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributeObjCPointerTypeAttrFromDeclarator), and given that it 296711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// didn't apply in whatever position it was written in, try to move 297711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// it to a more appropriate position. 298711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeObjCPointerTypeAttr(TypeProcessingState &state, 299711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 300711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 301711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 302711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 303711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 304711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 305711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 306711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 307711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 308711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunk.getAttrListRef()); 309711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 310711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 311711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 312711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 313711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 314711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 315711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Don't walk through these. 316711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 317711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 318711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 319711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto error; 320711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 321711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 322711c52bb20d0c69063b52a99826fb7d2835501f1John McCall error: 3232792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 3242792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(state.getSema(), attr, type); 325711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 326711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 327711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Distribute an objc_gc type attribute that was written on the 328711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator. 329711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 330711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeObjCPointerTypeAttrFromDeclarator(TypeProcessingState &state, 331711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 332711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 333711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 334711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 335711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // objc_gc goes on the innermost pointer to something that's not a 336711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // pointer. 337711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned innermost = -1U; 338711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool considerDeclSpec = true; 339711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 340711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 341711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 342711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 343711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 344711c52bb20d0c69063b52a99826fb7d2835501f1John McCall innermost = i; 345ae278a3a57595349a411f6474938d4dd1b263a0eJohn McCall continue; 346711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 347711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 348711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 349711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 350711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 351711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 352711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 353711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 354711c52bb20d0c69063b52a99826fb7d2835501f1John McCall considerDeclSpec = false; 355711c52bb20d0c69063b52a99826fb7d2835501f1John McCall goto done; 356711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 357711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 358711c52bb20d0c69063b52a99826fb7d2835501f1John McCall done: 359711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 360711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // That might actually be the decl spec if we weren't blocked by 361711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // anything in the declarator. 362711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (considerDeclSpec) { 3637ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall if (handleObjCPointerTypeAttr(state, attr, declSpecType)) { 3647ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // Splice the attribute into the decl spec. Prevents the 3657ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // attribute from being applied multiple times and gives 3667ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall // the source-location-filler something to work with. 3677ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall state.saveDeclSpecAttrs(); 3687ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall moveAttrFromListToList(attr, declarator.getAttrListRef(), 3697ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall declarator.getMutableDeclSpec().getAttributes().getListRef()); 370711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3717ea21937de6f849a7f44f10549c3d69c5a8cb3f3John McCall } 372711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 373711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 374711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, if we found an appropriate chunk, splice the attribute 375711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // into it. 376711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (innermost != -1U) { 377711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, declarator.getAttrListRef(), 378711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getTypeObject(innermost).getAttrListRef()); 379711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 380711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 381711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 382711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, diagnose when we're done building the type. 383711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 384711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 385711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 386711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 387711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written somewhere in a declaration 388711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// *other* than on the declarator itself or in the decl spec. Given 389711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// that it didn't apply in whatever position it was written in, try 390711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// to move it to a more appropriate position. 391711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeFunctionTypeAttr(TypeProcessingState &state, 392711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 393711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType type) { 394711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 395711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 396711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to push the attribute from the return type of a function to 397711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the function itself. 398711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = state.getCurrentChunkIndex(); i != 0; --i) { 399711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i-1); 400711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (chunk.Kind) { 401711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Function: 402711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, state.getCurrentAttrListRef(), 403711c52bb20d0c69063b52a99826fb7d2835501f1John McCall chunk.getAttrListRef()); 404711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 405711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 406711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Paren: 407711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Pointer: 408711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::BlockPointer: 409711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Array: 410711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::Reference: 411711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case DeclaratorChunk::MemberPointer: 412711c52bb20d0c69063b52a99826fb7d2835501f1John McCall continue; 413711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 414711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 415711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4162792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagnoseBadTypeAttribute(state.getSema(), attr, type); 417711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 418711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 419711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Try to distribute a function type attribute to the innermost 420711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// function chunk or type. Returns true if the attribute was 421711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// distributed, false if no location was found. 422711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool 423711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrToInnermost(TypeProcessingState &state, 424711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 425711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *&attrList, 426711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 427711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 428711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 429711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Put it on the innermost function chunk, if there is one. 430711c52bb20d0c69063b52a99826fb7d2835501f1John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 431711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &chunk = declarator.getTypeObject(i); 432711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (chunk.Kind != DeclaratorChunk::Function) continue; 433711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 434711c52bb20d0c69063b52a99826fb7d2835501f1John McCall moveAttrFromListToList(attr, attrList, chunk.getAttrListRef()); 435711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 436711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 437711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 438f85e193739c953358c865005855253af4f68a497John McCall if (handleFunctionTypeAttr(state, attr, declSpecType)) { 439f85e193739c953358c865005855253af4f68a497John McCall spliceAttrOutOfList(attr, attrList); 440f85e193739c953358c865005855253af4f68a497John McCall return true; 441f85e193739c953358c865005855253af4f68a497John McCall } 442f85e193739c953358c865005855253af4f68a497John McCall 443f85e193739c953358c865005855253af4f68a497John McCall return false; 444711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 445711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 446711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written in the decl spec. Try to 447711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 448711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 449711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclSpec(TypeProcessingState &state, 450711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 451711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 452711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.saveDeclSpecAttrs(); 453711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 454711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 455711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 456711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.getCurrentAttrListRef(), 457711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 458711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 459711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 460711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 461711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 462711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 463711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 465711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// A function type attribute was written on the declarator. Try to 466711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// apply it somewhere. 467711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void 468711c52bb20d0c69063b52a99826fb7d2835501f1John McCalldistributeFunctionTypeAttrFromDeclarator(TypeProcessingState &state, 469711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 470711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 471711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 472711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 473711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Try to distribute to the innermost. 474711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (distributeFunctionTypeAttrToInnermost(state, attr, 475711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getAttrListRef(), 476711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declSpecType)) 477711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 478711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 479711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If that failed, diagnose the bad attribute when the declarator is 480711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // fully built. 481711c52bb20d0c69063b52a99826fb7d2835501f1John McCall spliceAttrOutOfList(attr, declarator.getAttrListRef()); 482711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.addIgnoredTypeAttr(attr); 483711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 484711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 485711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// \brief Given that there are attributes written on the declarator 486711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// itself, try to distribute any type attributes to the appropriate 487711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// declarator chunk. 488711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// 489711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// These are attributes like the following: 490711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f ATTR; 491711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int (f ATTR)(); 492711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// but not necessarily this: 493711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// int f() ATTR; 494711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void distributeTypeAttrsFromDeclarator(TypeProcessingState &state, 495711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &declSpecType) { 496711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Collect all the type attributes from the declarator itself. 497711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getDeclarator().getAttributes() && "declarator has no attrs!"); 498711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *attr = state.getDeclarator().getAttributes(); 499711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 500711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 501711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr->getNext(); 502711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 503711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr->getKind()) { 504711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 505711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttrFromDeclarator(state, *attr, declSpecType); 506711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 507711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 508f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_ns_returns_retained: 5094e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!state.getSema().getLangOpts().ObjCAutoRefCount) 510f85e193739c953358c865005855253af4f68a497John McCall break; 511f85e193739c953358c865005855253af4f68a497John McCall // fallthrough 512f85e193739c953358c865005855253af4f68a497John McCall 513711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 514711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclarator(state, *attr, declSpecType); 515711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 516711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 517711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: 518711c52bb20d0c69063b52a99826fb7d2835501f1John McCall break; 519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 520711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attr = next)); 521711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 522711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 523711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Add a synthetic '()' to a block-literal declarator if it is 524711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// required, given the return type. 525711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void maybeSynthesizeBlockSignature(TypeProcessingState &state, 526711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType declSpecType) { 527711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 528711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 529711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // First, check whether the declarator would produce a function, 530711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // i.e. whether the innermost semantic chunk is a function. 531711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.isFunctionDeclarator()) { 532711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // If so, make that declarator a prototyped declarator. 533711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.getFunctionTypeInfo().hasPrototype = true; 534711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 535711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 536711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 537da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // If there are any type objects, the type as written won't name a 538da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // function, regardless of the decl spec type. This is because a 539da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // block signature declarator is always an abstract-declarator, and 540da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // abstract-declarators can't just be parentheses chunks. Therefore 541da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // we need to build a function chunk unless there are no type 542da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // objects and the decl spec type is a function. 543711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!declarator.getNumTypeObjects() && declSpecType->isFunctionType()) 544711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 545711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 546da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // Note that there *are* cases with invalid declarators where 547da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // declarators consist solely of parentheses. In general, these 548da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // occur only in failed efforts to make function declarators, so 549da263795abd39437d73d23fcf34dcd3afc1d7df3John McCall // faking up the function chunk is still the right thing to do. 550711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 551711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, we need to fake up a function declarator. 55296a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar SourceLocation loc = declarator.getLocStart(); 553711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 554711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // ...and *prepend* it to the declarator. 555711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.AddInnermostTypeInfo(DeclaratorChunk::getFunction( 556711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*proto*/ true, 557711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*variadic*/ false, SourceLocation(), 558711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*args*/ 0, 0, 559711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*type quals*/ 0, 56083f51722ed2b8134810cb178f39e44da811de7cdDouglas Gregor /*ref-qualifier*/true, SourceLocation(), 56143f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor /*const qualifier*/SourceLocation(), 56243f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor /*volatile qualifier*/SourceLocation(), 56390ebed0734fac9b464c9bdff53fbf85a86b27f32Douglas Gregor /*mutable qualifier*/SourceLocation(), 56474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor /*EH*/ EST_None, SourceLocation(), 0, 0, 0, 0, 0, 565711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*parens*/ loc, loc, 566711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator)); 567711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 568711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // For consistency, make sure the state still has us as processing 569711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the decl spec. 570711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getCurrentChunkIndex() == declarator.getNumTypeObjects() - 1); 571711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(declarator.getNumTypeObjects()); 57204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 57304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 574930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// \brief Convert the specified declspec to the appropriate type 575930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// object. 5765db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// \param D the declarator containing the declaration specifier. 5775153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// \returns The type described by the declaration specifiers. This function 5785153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// never returns null. 5798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType ConvertDeclSpecToType(TypeProcessingState &state) { 5805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: Should move the logic from DeclSpec::Finish to here for validity 5815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // checking. 582711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 5838cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 584711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 585711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const DeclSpec &DS = declarator.getDeclSpec(); 586711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation DeclLoc = declarator.getIdentifierLoc(); 5875db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (DeclLoc.isInvalid()) 58896a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar DeclLoc = DS.getLocStart(); 5891564e3906cad604a42bd131e584751a75589a9c4Chris Lattner 590711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ASTContext &Context = S.Context; 5911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5925db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner QualType Result; 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecType()) { 59496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner case DeclSpec::TST_void: 59596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Result = Context.VoidTy; 59696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner break; 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_char: 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 599fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.CharTy; 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) 601fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.SignedCharTy; 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else { 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Unknown TSS value"); 605fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.UnsignedCharTy; 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 607958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 60864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case DeclSpec::TST_wchar: 60964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 61064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.WCharTy; 61164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) { 612711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 613f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 61464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getSignedWCharType(); 61564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } else { 61664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 61764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis "Unknown TSS value"); 618711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 619f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 62064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getUnsignedWCharType(); 62164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } 62264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 623f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char16: 624f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 625f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 626f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char16Ty; 627f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 628f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char32: 629f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 630f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 631f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char32Ty; 632f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 633d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner case DeclSpec::TST_unspecified: 63462f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner // "<proto1,proto2>" is an objc qualified ID with a missing id. 635097e916b617bb4a069a03764024c310ed42a6424Chris Lattner if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 636c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 637c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**)PQ, 638c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 639c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 64062f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner break; 64162f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner } 6425db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 6435db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // If this is a missing declspec in a block literal return context, then it 6445db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // is inferred from the return statements inside the block. 645f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman // The declspec is always missing in a lambda expr context; it is either 646f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman // specified with a trailing return type or inferred. 647f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman if (declarator.getContext() == Declarator::LambdaExprContext || 648f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman isOmittedBlockReturnType(declarator)) { 6495db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner Result = Context.DependentTy; 6505db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 6515db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 6521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 653d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 654d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 655d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 656d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 657d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 658d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 659d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 6604e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().ImplicitInt) { 66135d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 66235d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 6633f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 664711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_declspec) 6653f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 66696a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar << FixItHint::CreateInsertion(DS.getLocStart(), "int"); 6673f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 6684310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 669d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 670d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 671d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 672d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 6734310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor // FIXME: Does Microsoft really have the implicit int extension in C++? 6744e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().CPlusPlus && 6754e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie !S.getLangOpts().MicrosoftExt) { 676711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_missing_type_specifier) 6773f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 6781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 679b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 680b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 681b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 682711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 683b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 684711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_type_specifier) 6853f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 686b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 687d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 6881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 6903cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 6915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 693fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 694fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 695fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 696311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 697311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 698311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 699311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 7004e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().C99) 701ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith S.Diag(DS.getTypeSpecWidthLoc(), 7024e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie S.getLangOpts().CPlusPlus0x ? 703ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith diag::warn_cxx98_compat_longlong : diag::ext_longlong); 704311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 708fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 709fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 710fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 711311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 712311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 713311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 714311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 7154e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().C99) 716ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith S.Diag(DS.getTypeSpecWidthLoc(), 7174e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie S.getLangOpts().CPlusPlus0x ? 718ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith diag::warn_cxx98_compat_longlong : diag::ext_longlong); 719311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 722958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7233cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 7245a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith case DeclSpec::TST_int128: 7255a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith if (DS.getTypeSpecSign() == DeclSpec::TSS_unsigned) 7265a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith Result = Context.UnsignedInt128Ty; 7275a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith else 7285a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith Result = Context.Int128Ty; 7295a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith break; 730aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov case DeclSpec::TST_half: Result = Context.HalfTy; break; 731fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 732958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 733958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 734fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 735958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 736fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 73739d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne 7384e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().OpenCL && !S.getOpenCLOptions().cl_khr_fp64) { 73939d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne S.Diag(DS.getTypeSpecTypeLoc(), diag::err_double_requires_fp64); 74039d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne declarator.setInvalidType(true); 74139d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne } 742958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 743fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 747711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 7488f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 749711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7508f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 75199dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_struct: { 755b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeDecl *D = dyn_cast_or_null<TypeDecl>(DS.getRepAsDecl()); 7566e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 7576e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 7586e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 759711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7606e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 7616e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 7626e24726524c2b51b31bb4b622aa678a46b024f42John McCall 763a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 7640daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara S.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeNameLoc()); 765a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 767a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 768a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 770a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 7712191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 7720daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara // In both C and C++, make an ElaboratedType. 7730daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara ElaboratedTypeKeyword Keyword 7740daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); 7750daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara Result = S.getElaboratedType(Keyword, DS.getTypeSpecScope(), Result); 776958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7781a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 7805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 782711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 78327940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall if (Result.isNull()) 784711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 78527940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall else if (DeclSpec::ProtocolQualifierListTy PQ 78627940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall = DS.getProtocolQualifiers()) { 787c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *ObjT = Result->getAs<ObjCObjectType>()) { 788c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Silently drop any existing protocol qualifiers. 789c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // TODO: determine whether that's the right thing to do. 790c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjT->getNumProtocols()) 791c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = ObjT->getBaseType(); 792c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 793c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getNumProtocolQualifiers()) 794c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Result, 795c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 796c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 797c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCIdType()) { 798ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 799c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 800c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 801c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 802c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 803c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCClassType()) { 8044262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 805c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy, 806c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 807c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 808c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 8093f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 810711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 8113f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 812711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8133f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 814c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 8151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 817958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 8185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 819958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 820e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 821711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 822958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 823730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (!Result->isDependentType()) 824730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (const TagType *TT = Result->getAs<TagType>()) 825711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.DiagnoseUseOfDecl(TT->getDecl(), DS.getTypeSpecTypeLoc()); 826d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 827fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 828958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 829d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 830b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 831d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 832d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 833711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildTypeofExprType(E, DS.getTypeSpecTypeLoc()); 8344b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 8354b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 836711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8374b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 838958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 839d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 8406fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 841b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 8426fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 8436fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 844711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildDecltypeType(E, DS.getTypeSpecTypeLoc()); 845af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 846af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 847711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 848af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 8496fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 8506fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 851ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case DeclSpec::TST_underlyingType: 852db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt Result = S.GetTypeFromParser(DS.getRepAsType()); 853db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt assert(!Result.isNull() && "Didn't get a type for __underlying_type?"); 854ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = S.BuildUnaryTransformType(Result, 855ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType, 856ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DS.getTypeSpecTypeLoc()); 857ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (Result.isNull()) { 858ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = Context.IntTy; 859ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt declarator.setInvalidType(true); 860db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt } 861db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt break; 862db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt 863e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson case DeclSpec::TST_auto: { 864e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 86534b41d939a1328f484511c6002ba2456db879a29Richard Smith Result = Context.getAutoType(QualType()); 866e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 867e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson } 8681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 869a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall case DeclSpec::TST_unknown_anytype: 870a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall Result = Context.UnknownAnyTy; 871a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall break; 872a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall 873b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman case DeclSpec::TST_atomic: 874b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.GetTypeFromParser(DS.getRepAsType()); 875b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman assert(!Result.isNull() && "Didn't get a type for _Atomic?"); 876b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.BuildAtomicType(Result, DS.getTypeSpecTypeLoc()); 877b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (Result.isNull()) { 878b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = Context.IntTy; 879b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman declarator.setInvalidType(true); 880b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 881b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman break; 882b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 883809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 8845153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 885711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8865153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 889958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 890f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 8914e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().Freestanding) 892711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 893fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 89482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 89582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 89682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 897e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::VectorKind VecKind = VectorType::AltiVecVector; 898788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner if (DS.isTypeAltiVecPixel()) 899e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecPixel; 900788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner else if (DS.isTypeAltiVecBool()) 901e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecBool; 902e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson Result = Context.getVectorType(Result, 128/typeSize, VecKind); 903f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 9041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 90547423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis // FIXME: Imaginary. 90647423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis if (DS.getTypeSpecComplex() == DeclSpec::TSC_imaginary) 907711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::err_imaginary_not_supported); 9081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 909711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Before we process any type attributes, synthesize a block literal 910711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // function declarator if necessary. 911711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.getContext() == Declarator::BlockLiteralContext) 912711c52bb20d0c69063b52a99826fb7d2835501f1John McCall maybeSynthesizeBlockSignature(state, Result); 913711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 914711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any type attributes from the decl spec. This may cause the 915711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // list of type attributes to be temporarily saved while the type 916711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // attributes are pushed around. 917711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = DS.getAttributes().getList()) 918711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, Result, true, attrs); 9191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 92096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 92196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 92296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 92396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Enforce C99 6.7.3p2: "Types other than pointer types derived from object 92496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // or incomplete types shall not be restrict-qualified." C++ also allows 92596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // restrict-qualified references. 9260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_restrict) { 9272b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isAnyPointerType() || Result->isReferenceType()) { 9282b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian QualType EltTy; 9292b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isObjCObjectPointerType()) 9302b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result; 9312b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian else 9322b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result->isPointerType() ? 9332b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<PointerType>()->getPointeeType() : 9342b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<ReferenceType>()->getPointeeType(); 9351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 936bad0e656c3732e3539a9cd6525de721d7e47408bDouglas Gregor // If we have a pointer or reference, the pointee must have an object 937bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner // incomplete type. 938bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner if (!EltTy->isIncompleteOrObjectType()) { 939711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 940d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_invalid_pointee) 941d162584991885ab004a02573a73ce06422b921fcChris Lattner << EltTy << DS.getSourceRange(); 9420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 943bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } 944bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } else { 945711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 946711c52bb20d0c69063b52a99826fb7d2835501f1John McCall diag::err_typecheck_invalid_restrict_not_pointer) 947d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 9480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 94996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 95096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 95296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 95396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 95496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 95596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 95696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Get some location to point at, either the C or V location. 95796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner SourceLocation Loc; 9580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 95996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getConstSpecLoc(); 9600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 96196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getVolatileSpecLoc(); 9620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 9630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((TypeQuals & DeclSpec::TQ_restrict) && 9640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Has CVR quals but not C, V, or R?"); 9650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Loc = DS.getRestrictSpecLoc(); 96696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 967711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(Loc, diag::warn_typecheck_function_qualifiers) 968d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 96996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 971f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 972f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 973f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 974f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 975f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 9761a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 9771a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 978f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 9790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 9800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 9811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 9821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 983bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // C90 6.5.3 constraints: "The same type qualifier shall not appear more 984bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // than once in the same specifier-list or qualifier-list, either directly 985bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // or via one or more typedefs." 986bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman if (!S.getLangOpts().C99 && !S.getLangOpts().CPlusPlus 987bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman && TypeQuals & Result.getCVRQualifiers()) { 988bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman if (TypeQuals & DeclSpec::TQ_const && Result.isConstQualified()) { 989bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman S.Diag(DS.getConstSpecLoc(), diag::ext_duplicate_declspec) 990bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman << "const"; 991bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 992bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 993bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman if (TypeQuals & DeclSpec::TQ_volatile && Result.isVolatileQualified()) { 994bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman S.Diag(DS.getVolatileSpecLoc(), diag::ext_duplicate_declspec) 995bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman << "volatile"; 996bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 997bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 998bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // C90 doesn't have restrict, so it doesn't force us to produce a warning 999bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // in this case. 1000bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1001bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 10020953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(TypeQuals); 10030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Result = Context.getQualifiedType(Result, Quals); 100496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 10050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1006f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 1007f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 1008f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 1009cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 1010cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 1011cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 10121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1013cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 1014cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1015cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 10162865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 10172865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Qs) { 10182865474261a608c7873b87ba4af110d17907896dJohn McCall // Enforce C99 6.7.3p2: "Types other than pointer types derived from 10192865474261a608c7873b87ba4af110d17907896dJohn McCall // object or incomplete types shall not be restrict-qualified." 10202865474261a608c7873b87ba4af110d17907896dJohn McCall if (Qs.hasRestrict()) { 10212865474261a608c7873b87ba4af110d17907896dJohn McCall unsigned DiagID = 0; 10222865474261a608c7873b87ba4af110d17907896dJohn McCall QualType ProblemTy; 10232865474261a608c7873b87ba4af110d17907896dJohn McCall 10242865474261a608c7873b87ba4af110d17907896dJohn McCall const Type *Ty = T->getCanonicalTypeInternal().getTypePtr(); 10252865474261a608c7873b87ba4af110d17907896dJohn McCall if (const ReferenceType *RTy = dyn_cast<ReferenceType>(Ty)) { 10262865474261a608c7873b87ba4af110d17907896dJohn McCall if (!RTy->getPointeeType()->isIncompleteOrObjectType()) { 10272865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10282865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<ReferenceType>()->getPointeeType(); 10292865474261a608c7873b87ba4af110d17907896dJohn McCall } 10302865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) { 10312865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 10322865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10332865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 10342865474261a608c7873b87ba4af110d17907896dJohn McCall } 10352865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const MemberPointerType *PTy = dyn_cast<MemberPointerType>(Ty)) { 10362865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 10372865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10382865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 10392865474261a608c7873b87ba4af110d17907896dJohn McCall } 10402865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (!Ty->isDependentType()) { 10412865474261a608c7873b87ba4af110d17907896dJohn McCall // FIXME: this deserves a proper diagnostic 10422865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10432865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T; 10442865474261a608c7873b87ba4af110d17907896dJohn McCall } 10452865474261a608c7873b87ba4af110d17907896dJohn McCall 10462865474261a608c7873b87ba4af110d17907896dJohn McCall if (DiagID) { 10472865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(Loc, DiagID) << ProblemTy; 10482865474261a608c7873b87ba4af110d17907896dJohn McCall Qs.removeRestrict(); 10492865474261a608c7873b87ba4af110d17907896dJohn McCall } 10502865474261a608c7873b87ba4af110d17907896dJohn McCall } 10512865474261a608c7873b87ba4af110d17907896dJohn McCall 10522865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getQualifiedType(T, Qs); 10532865474261a608c7873b87ba4af110d17907896dJohn McCall} 10542865474261a608c7873b87ba4af110d17907896dJohn McCall 1055075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// \brief Build a paren type including \p T. 1056075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo BagnaraQualType Sema::BuildParenType(QualType T) { 1057075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara return Context.getParenType(T); 1058075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara} 1059075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1060f85e193739c953358c865005855253af4f68a497John McCall/// Given that we're building a pointer or reference to the given 1061f85e193739c953358c865005855253af4f68a497John McCallstatic QualType inferARCLifetimeForPointee(Sema &S, QualType type, 1062f85e193739c953358c865005855253af4f68a497John McCall SourceLocation loc, 1063f85e193739c953358c865005855253af4f68a497John McCall bool isReference) { 1064f85e193739c953358c865005855253af4f68a497John McCall // Bail out if retention is unrequired or already specified. 1065f85e193739c953358c865005855253af4f68a497John McCall if (!type->isObjCLifetimeType() || 1066f85e193739c953358c865005855253af4f68a497John McCall type.getObjCLifetime() != Qualifiers::OCL_None) 1067f85e193739c953358c865005855253af4f68a497John McCall return type; 1068f85e193739c953358c865005855253af4f68a497John McCall 1069f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime implicitLifetime = Qualifiers::OCL_None; 1070f85e193739c953358c865005855253af4f68a497John McCall 1071f85e193739c953358c865005855253af4f68a497John McCall // If the object type is const-qualified, we can safely use 1072f85e193739c953358c865005855253af4f68a497John McCall // __unsafe_unretained. This is safe (because there are no read 1073f85e193739c953358c865005855253af4f68a497John McCall // barriers), and it'll be safe to coerce anything but __weak* to 1074f85e193739c953358c865005855253af4f68a497John McCall // the resulting type. 1075f85e193739c953358c865005855253af4f68a497John McCall if (type.isConstQualified()) { 1076f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 1077f85e193739c953358c865005855253af4f68a497John McCall 1078f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, check whether the static type does not require 1079f85e193739c953358c865005855253af4f68a497John McCall // retaining. This currently only triggers for Class (possibly 1080f85e193739c953358c865005855253af4f68a497John McCall // protocol-qualifed, and arrays thereof). 1081f85e193739c953358c865005855253af4f68a497John McCall } else if (type->isObjCARCImplicitlyUnretainedType()) { 1082f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 10835b76f373d23cc3b292ecf523349aaaa388eea375Argyrios Kyrtzidis 1084ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // If we are in an unevaluated context, like sizeof, skip adding a 1085ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // qualification. 108678a542478dd63c2789816dcc1cdab5c9a6eef99bEli Friedman } else if (S.ExprEvalContexts.back().Context == Sema::Unevaluated) { 1087ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman return type; 1088f85e193739c953358c865005855253af4f68a497John McCall 1089e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // If that failed, give an error and recover using __strong. __strong 1090e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // is the option most likely to prevent spurious second-order diagnostics, 1091e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // like when binding a reference to a field. 1092f85e193739c953358c865005855253af4f68a497John McCall } else { 1093f85e193739c953358c865005855253af4f68a497John McCall // These types can show up in private ivars in system headers, so 1094f85e193739c953358c865005855253af4f68a497John McCall // we need this to not be an error in those cases. Instead we 1095f85e193739c953358c865005855253af4f68a497John McCall // want to delay. 1096f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 1097ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.DelayedDiagnostics.add( 1098ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman sema::DelayedDiagnostic::makeForbiddenType(loc, 1099ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman diag::err_arc_indirect_no_ownership, type, isReference)); 1100f85e193739c953358c865005855253af4f68a497John McCall } else { 1101ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.Diag(loc, diag::err_arc_indirect_no_ownership) << type << isReference; 1102f85e193739c953358c865005855253af4f68a497John McCall } 1103e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall implicitLifetime = Qualifiers::OCL_Strong; 1104f85e193739c953358c865005855253af4f68a497John McCall } 1105f85e193739c953358c865005855253af4f68a497John McCall assert(implicitLifetime && "didn't infer any lifetime!"); 1106f85e193739c953358c865005855253af4f68a497John McCall 1107f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 1108f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(implicitLifetime); 1109f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getQualifiedType(type, qs); 1110f85e193739c953358c865005855253af4f68a497John McCall} 1111f85e193739c953358c865005855253af4f68a497John McCall 1112cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 1113cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1114cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 1115cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1116cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1117cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 1118cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 1119cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1120cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 1121cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1122cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1123cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 1124cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 11252865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildPointerType(QualType T, 1126cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 1127cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 1128cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 1129cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 1130ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1131cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1132cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1133cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1134c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); 113592e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1136f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build pointers to unqualified pointers. 11374e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1138f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ false); 1139f85e193739c953358c865005855253af4f68a497John McCall 1140cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 11412865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getPointerType(T); 1142cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1143cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1144cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 1145cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1146cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 1147cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1148cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1149cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 1150cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 1151cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1152cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 1153cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1154cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1155cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 1156cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 115754e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 11582865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 115954e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 11609625e44c0252485277a340746ed8ac950686156fDouglas Gregor assert(Context.getCanonicalType(T) != Context.OverloadTy && 11619625e44c0252485277a340746ed8ac950686156fDouglas Gregor "Unresolved overloaded function type"); 11629625e44c0252485277a340746ed8ac950686156fDouglas Gregor 116369d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // C++0x [dcl.ref]p6: 116469d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // If a typedef (7.1.3), a type template-parameter (14.3.1), or a 116569d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // decltype-specifier (7.1.6.2) denotes a type TR that is a reference to a 116669d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // type T, an attempt to create the type "lvalue reference to cv TR" creates 116769d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // the type "lvalue reference to T", while an attempt to create the type 116869d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // "rvalue reference to cv TR" creates the type TR. 116954e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 117054e14c4db764c0636160d26c5bbf491637c83a76John McCall 117154e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 117254e14c4db764c0636160d26c5bbf491637c83a76John McCall // 117354e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 117454e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 117554e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 117654e14c4db764c0636160d26c5bbf491637c83a76John McCall // 117754e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 117854e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 117954e14c4db764c0636160d26c5bbf491637c83a76John McCall // 118054e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 118154e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 118269d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // collapsing of references-to-references as described in C++0x. 118369d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // DR 106 and 540 introduce reference-collapsing into C++98/03. 1184cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1185cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 118633a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 1187cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 1188cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 1189cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 1190cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1191cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1192cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1193f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build references to unqualified pointers. 11944e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1195f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ true); 1196f85e193739c953358c865005855253af4f68a497John McCall 1197cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 11987c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 11992865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getLValueReferenceType(T, SpelledAsLValue); 12002865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getRValueReferenceType(T); 1201cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1202cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1203e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// Check whether the specified array size makes the array type a VLA. If so, 1204e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// return true, if not, return the size of the array in SizeVal. 1205282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smithstatic bool isArraySizeVLA(Sema &S, Expr *ArraySize, llvm::APSInt &SizeVal) { 1206282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // If the size is an ICE, it certainly isn't a VLA. If we're in a GNU mode 1207282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // (like gnu99, but not c99) accept any evaluatable value as an extension. 1208282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith return S.VerifyIntegerConstantExpression( 1209282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith ArraySize, &SizeVal, S.PDiag(), S.LangOpts.GNUMode, 1210282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith S.PDiag(diag::ext_vla_folded_to_constant)).isInvalid(); 1211e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner} 1212e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1213e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1214cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 1215cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1216cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 1217cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1218cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 12191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 12201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 1221cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1222cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1223cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// array type or, if there is no such entity, the location of the 1224cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have array type. 1225cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1226cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 1227cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1228cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1229cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 1230cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 1231cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 1232cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 12337e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 12340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 12357e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 12364e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 1237138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 1238138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 1239138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // type, the (possibly cv-qualified) type void, a function type or an 1240138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 1241138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 1242138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 1243138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 1244138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 1245138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 1246138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1247138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 1248138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1249923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (T->isVoidType()) { 1250923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 1251923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1252923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1253138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1254138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (RequireNonAbstractType(Brackets.getBegin(), T, 1255138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 1256138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1257138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 1258923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 1259138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 1260138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 1261923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 1262923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 1263923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1264923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1265cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1266cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 1267cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 1268ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1269cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1270cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 12711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 127234b41d939a1328f484511c6002ba2456db879a29Richard Smith if (T->getContainedAutoType()) { 127334b41d939a1328f484511c6002ba2456db879a29Richard Smith Diag(Loc, diag::err_illegal_decl_array_of_auto) 127434b41d939a1328f484511c6002ba2456db879a29Richard Smith << getPrintableNameForEntity(Entity) << T; 1275e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson return QualType(); 1276e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson } 12771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12786217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 1279cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 1280cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 1281cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 1282cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 1283c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (T->isObjCObjectType()) { 1284c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 1285c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 1286cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 12871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1288806054db6653d29cb0d9692df3612cbcd03d0530John McCall // Do placeholder conversions on the array size expression. 1289806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (ArraySize && ArraySize->hasPlaceholderType()) { 1290806054db6653d29cb0d9692df3612cbcd03d0530John McCall ExprResult Result = CheckPlaceholderExpr(ArraySize); 1291806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (Result.isInvalid()) return QualType(); 1292806054db6653d29cb0d9692df3612cbcd03d0530John McCall ArraySize = Result.take(); 1293806054db6653d29cb0d9692df3612cbcd03d0530John McCall } 1294806054db6653d29cb0d9692df3612cbcd03d0530John McCall 12955e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // Do lvalue-to-rvalue conversions on the array size expression. 1296429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (ArraySize && !ArraySize->isRValue()) { 1297429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultLvalueConversion(ArraySize); 1298429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 1299429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return QualType(); 1300429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley 1301429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ArraySize = Result.take(); 1302429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley } 13035e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall 1304cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 1305282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // C++11 allows contextual conversions to such types. 13064e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus0x && 1307282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith ArraySize && !ArraySize->isTypeDependent() && 13081274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1309cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1310cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 1311cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1312cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1313282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith 13142767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor llvm::APSInt ConstVal(Context.getTypeSize(Context.getSizeType())); 1315cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 1316f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 13177e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 1318f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 1319f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 1320ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()) { 13217e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 1322282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith } else if ((!T->isDependentType() && !T->isIncompleteType() && 1323282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith !T->isConstantSizeType()) || 1324282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith isArraySizeVLA(*this, ArraySize, ConstVal)) { 1325282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // Even in C++11, don't allow contextual conversions in the array bound 1326282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // of a VLA. 13274e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus0x && 1328282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1329282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1330282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith << ArraySize->getType() << ArraySize->getSourceRange(); 1331282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith return QualType(); 1332282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith } 1333282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith 1334e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with an element type that has a non-constant-size is a VLA. 1335e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with a non-ICE size is a VLA. We accept any expression 1336e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // that we can fold to a non-zero positive value as an extension. 13377e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 1338cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 1339cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 1340cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 1341923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 1342b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth if (Entity) 1343b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_decl_negative_array_size) 1344b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << getPrintableNameForEntity(Entity) << ArraySize->getSourceRange(); 1345b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth else 1346b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_typecheck_negative_array_size) 1347b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << ArraySize->getSourceRange(); 1348923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1349923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1350923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 135102024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 135202024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 135302024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor Diag(ArraySize->getLocStart(), 135402024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 135502024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 1356923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 135720cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne 135820cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne if (ASM == ArrayType::Static) { 135920cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne Diag(ArraySize->getLocStart(), 136020cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne diag::warn_typecheck_zero_static_array_size) 136120cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne << ArraySize->getSourceRange(); 136220cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne ASM = ArrayType::Normal; 136320cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne } 13642767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor } else if (!T->isDependentType() && !T->isVariablyModifiedType() && 13652767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor !T->isIncompleteType()) { 13662767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor // Is the array too large? 13672767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor unsigned ActiveSizeBits 13682767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor = ConstantArrayType::getNumAddressingBits(Context, T, ConstVal); 13692767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) 13702767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_too_large) 13712767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ConstVal.toString(10) 13722767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ArraySize->getSourceRange(); 13731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 13742767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 137546a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 1376cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1377af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 13784e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().C99) { 13790fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor if (T->isVariableArrayType()) { 13800fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Prohibit the use of non-POD types in VLAs. 1381f85e193739c953358c865005855253af4f68a497John McCall QualType BaseT = Context.getBaseElementType(T); 1382204ce17e0cfd9bbe229627e1e5a20c3f2f587c8cDouglas Gregor if (!T->isDependentType() && 1383f85e193739c953358c865005855253af4f68a497John McCall !BaseT.isPODType(Context) && 1384f85e193739c953358c865005855253af4f68a497John McCall !BaseT->isObjCLifetimeType()) { 13850fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::err_vla_non_pod) 1386f85e193739c953358c865005855253af4f68a497John McCall << BaseT; 13870fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor return QualType(); 13880fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } 1389a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor // Prohibit the use of VLAs during template argument deduction. 1390a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor else if (isSFINAEContext()) { 1391a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor Diag(Loc, diag::err_vla_in_sfinae); 1392a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor return QualType(); 1393a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor } 13940fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Just extwarn about VLAs. 13950fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor else 13960fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::ext_vla); 13970fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } else if (ASM != ArrayType::Normal || Quals != 0) 1398d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith Diag(Loc, 13994e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().CPlusPlus? diag::err_c99_array_usage_cxx 1400d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith : diag::ext_c99_array_usage) << ASM; 1401cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1402cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1403cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 1404cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 14059cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 14069cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 14079cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 14089cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 14099ae2f076ca5ab1feb3ba95629099ec2319833701John McCallQualType Sema::BuildExtVectorType(QualType T, Expr *ArraySize, 14109cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 14119cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 14129cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 14131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 14149cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 14159cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 14169cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 14179cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 14189cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 14199ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isTypeDependent() && !ArraySize->isValueDependent()) { 14209cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 14219ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isIntegerConstantExpr(vecSize, Context)) { 14229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_argument_not_int) 14239ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << "ext_vector_type" << ArraySize->getSourceRange(); 14249cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 14259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 14261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 14289cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 14291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 14301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14319cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 14329cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 14339ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << ArraySize->getSourceRange(); 14349cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 14359cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 14361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14374ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return Context.getExtVectorType(T, vectorSize); 14381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 14391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14409ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Context.getDependentSizedExtVectorType(T, ArraySize, AttrLoc); 14419cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 14421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1443724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \brief Build a function type. 1444724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1445724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// This routine checks the function type according to C++ rules and 1446724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// under the assumption that the result type and parameter types have 1447724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// just been instantiated from a template. It therefore duplicates 14482943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor/// some of the behavior of GetTypeForDeclarator, but in a much 1449724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// simpler form that is only suitable for this narrow use case. 1450724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1451724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param T The return type of the function. 1452724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1453724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param ParamTypes The parameter types of the function. This array 1454724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// will be modified to account for adjustments to the types of the 1455724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function parameters. 1456724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1457724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param NumParamTypes The number of parameter types in ParamTypes. 1458724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1459724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Variadic Whether this is a variadic function type. 1460724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1461eefb3d5b49c844347f212073a7e975b8118fe8e9Richard Smith/// \param HasTrailingReturn Whether this function has a trailing return type. 1462eefb3d5b49c844347f212073a7e975b8118fe8e9Richard Smith/// 1463724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the function type. 1464724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1465724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Loc The location of the entity whose type involves this 1466724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function type or, if there is no such entity, the location of the 1467724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type that will have function type. 1468724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1469724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Entity The name of the entity that involves the function 1470724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type, if known. 1471724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1472724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \returns A suitable function type, if there are no 1473724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// errors. Otherwise, returns a NULL type. 1474724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas GregorQualType Sema::BuildFunctionType(QualType T, 14751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType *ParamTypes, 1476724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor unsigned NumParamTypes, 1477eefb3d5b49c844347f212073a7e975b8118fe8e9Richard Smith bool Variadic, bool HasTrailingReturn, 1478eefb3d5b49c844347f212073a7e975b8118fe8e9Richard Smith unsigned Quals, 1479c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RefQualifierKind RefQualifier, 1480fa869547eb1cab12d7e0c0dfa8ba594e336b9b32Eli Friedman SourceLocation Loc, DeclarationName Entity, 1481e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionType::ExtInfo Info) { 1482724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 148358408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(Loc, diag::err_func_returning_array_function) 148458408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1485724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1486724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1487aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1488aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Functions cannot return half FP. 1489aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 1490aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 1 << 1491aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1492aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov return QualType(); 1493aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 1494aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1495724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 1496724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor for (unsigned Idx = 0; Idx < NumParamTypes; ++Idx) { 1497aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: Loc is too inprecise here, should use proper locations for args. 149879e6bd379773447a74cc3e579d9081e4c5cb6d63Douglas Gregor QualType ParamType = Context.getAdjustedParameterType(ParamTypes[Idx]); 14992dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 1500724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 1501724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 1502aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ParamType->isHalfType()) { 1503aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 1504aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 0 << 1505aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1506aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Invalid = true; 1507724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1508cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 150954e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 1510724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1511724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1512724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 1513724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1514724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1515e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 1516e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = Variadic; 1517eefb3d5b49c844347f212073a7e975b8118fe8e9Richard Smith EPI.HasTrailingReturn = HasTrailingReturn; 1518e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = Quals; 1519c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = RefQualifier; 1520e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.ExtInfo = Info; 1521e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 1522e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall return Context.getFunctionType(T, ParamTypes, NumParamTypes, EPI); 1523724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 15241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1525949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 1526949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1527949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 1528949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 1529949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 1530949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 1531949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1532949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 1533949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 15341eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 15352865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 1536949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 1537949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 1538949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 1539949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 1540949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 1541949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1542949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 1543949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 1544949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1545949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 1546949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 1547949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 1548949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1549949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1550737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // C++ 8.3.3p3: A pointer to member shall not point to ... a member 1551949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 1552949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 15538d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 1554ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 1555949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1556949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1557949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1558949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 1559949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 1560949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 1561949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1562949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1563949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1564949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 1565949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 1566949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1567949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1568949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1569d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // In the Microsoft ABI, the class is allowed to be an incomplete 1570d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // type. In such cases, the compiler makes a worst-case assumption. 1571d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // We make no such assumption right now, so emit an error if the 1572d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // class isn't a complete type. 1573bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (Context.getTargetInfo().getCXXABI() == CXXABI_Microsoft && 1574d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis RequireCompleteType(Loc, Class, diag::err_incomplete_type)) 1575d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis return QualType(); 1576d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis 15772865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getMemberPointerType(T, Class.getTypePtr()); 1578949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 15791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15809a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 15819a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15829a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 15839a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR The cvr-qualifiers to be applied to the block pointer type. 15859a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15869a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Loc The location of the entity whose type involves this 15879a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// block pointer type or, if there is no such entity, the location of the 15889a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type that will have block pointer type. 15899a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15909a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 15919a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 15929a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15939a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 15949a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 15952865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildBlockPointerType(QualType T, 15961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 15979a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 15980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 15999a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 16009a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 16019a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 16021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16032865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getBlockPointerType(T); 16049a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 16059a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 1606b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallQualType Sema::GetTypeFromParser(ParsedType Ty, TypeSourceInfo **TInfo) { 1607b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = Ty.get(); 16083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 1609a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 16103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 16113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 16123f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1613a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 1614f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 1615e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 1616a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 1617e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 16181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1619a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 1620e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 1621e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 1622e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 1623a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 1624a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 1625a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis unsigned chunkIndex); 1626a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis 1627f85e193739c953358c865005855253af4f68a497John McCall/// Given that this is the declaration of a parameter under ARC, 1628f85e193739c953358c865005855253af4f68a497John McCall/// attempt to infer attributes and such for pointer-to-whatever 1629f85e193739c953358c865005855253af4f68a497John McCall/// types. 1630f85e193739c953358c865005855253af4f68a497John McCallstatic void inferARCWriteback(TypeProcessingState &state, 1631f85e193739c953358c865005855253af4f68a497John McCall QualType &declSpecType) { 1632f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 1633f85e193739c953358c865005855253af4f68a497John McCall Declarator &declarator = state.getDeclarator(); 1634f85e193739c953358c865005855253af4f68a497John McCall 1635f85e193739c953358c865005855253af4f68a497John McCall // TODO: should we care about decl qualifiers? 1636f85e193739c953358c865005855253af4f68a497John McCall 1637f85e193739c953358c865005855253af4f68a497John McCall // Check whether the declarator has the expected form. We walk 1638f85e193739c953358c865005855253af4f68a497John McCall // from the inside out in order to make the block logic work. 1639f85e193739c953358c865005855253af4f68a497John McCall unsigned outermostPointerIndex = 0; 1640f85e193739c953358c865005855253af4f68a497John McCall bool isBlockPointer = false; 1641f85e193739c953358c865005855253af4f68a497John McCall unsigned numPointers = 0; 1642f85e193739c953358c865005855253af4f68a497John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 1643f85e193739c953358c865005855253af4f68a497John McCall unsigned chunkIndex = i; 1644f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(chunkIndex); 1645f85e193739c953358c865005855253af4f68a497John McCall switch (chunk.Kind) { 1646f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Paren: 1647f85e193739c953358c865005855253af4f68a497John McCall // Ignore parens. 1648f85e193739c953358c865005855253af4f68a497John McCall break; 1649f85e193739c953358c865005855253af4f68a497John McCall 1650f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Reference: 1651f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Pointer: 1652f85e193739c953358c865005855253af4f68a497John McCall // Count the number of pointers. Treat references 1653f85e193739c953358c865005855253af4f68a497John McCall // interchangeably as pointers; if they're mis-ordered, normal 1654f85e193739c953358c865005855253af4f68a497John McCall // type building will discover that. 1655f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1656f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1657f85e193739c953358c865005855253af4f68a497John McCall break; 1658f85e193739c953358c865005855253af4f68a497John McCall 1659f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::BlockPointer: 1660f85e193739c953358c865005855253af4f68a497John McCall // If we have a pointer to block pointer, that's an acceptable 1661f85e193739c953358c865005855253af4f68a497John McCall // indirect reference; anything else is not an application of 1662f85e193739c953358c865005855253af4f68a497John McCall // the rules. 1663f85e193739c953358c865005855253af4f68a497John McCall if (numPointers != 1) return; 1664f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1665f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1666f85e193739c953358c865005855253af4f68a497John McCall isBlockPointer = true; 1667f85e193739c953358c865005855253af4f68a497John McCall 1668f85e193739c953358c865005855253af4f68a497John McCall // We don't care about pointer structure in return values here. 1669f85e193739c953358c865005855253af4f68a497John McCall goto done; 1670f85e193739c953358c865005855253af4f68a497John McCall 1671f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Array: // suppress if written (id[])? 1672f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Function: 1673f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::MemberPointer: 1674f85e193739c953358c865005855253af4f68a497John McCall return; 1675f85e193739c953358c865005855253af4f68a497John McCall } 1676f85e193739c953358c865005855253af4f68a497John McCall } 1677f85e193739c953358c865005855253af4f68a497John McCall done: 1678f85e193739c953358c865005855253af4f68a497John McCall 1679f85e193739c953358c865005855253af4f68a497John McCall // If we have *one* pointer, then we want to throw the qualifier on 1680f85e193739c953358c865005855253af4f68a497John McCall // the declaration-specifiers, which means that it needs to be a 1681f85e193739c953358c865005855253af4f68a497John McCall // retainable object type. 1682f85e193739c953358c865005855253af4f68a497John McCall if (numPointers == 1) { 1683f85e193739c953358c865005855253af4f68a497John McCall // If it's not a retainable object type, the rule doesn't apply. 1684f85e193739c953358c865005855253af4f68a497John McCall if (!declSpecType->isObjCRetainableType()) return; 1685f85e193739c953358c865005855253af4f68a497John McCall 1686f85e193739c953358c865005855253af4f68a497John McCall // If it already has lifetime, don't do anything. 1687f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType.getObjCLifetime()) return; 1688f85e193739c953358c865005855253af4f68a497John McCall 1689f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, modify the type in-place. 1690f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 1691f85e193739c953358c865005855253af4f68a497John McCall 1692f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType->isObjCARCImplicitlyUnretainedType()) 1693f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_ExplicitNone); 1694f85e193739c953358c865005855253af4f68a497John McCall else 1695f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_Autoreleasing); 1696f85e193739c953358c865005855253af4f68a497John McCall declSpecType = S.Context.getQualifiedType(declSpecType, qs); 1697f85e193739c953358c865005855253af4f68a497John McCall 1698f85e193739c953358c865005855253af4f68a497John McCall // If we have *two* pointers, then we want to throw the qualifier on 1699f85e193739c953358c865005855253af4f68a497John McCall // the outermost pointer. 1700f85e193739c953358c865005855253af4f68a497John McCall } else if (numPointers == 2) { 1701f85e193739c953358c865005855253af4f68a497John McCall // If we don't have a block pointer, we need to check whether the 1702f85e193739c953358c865005855253af4f68a497John McCall // declaration-specifiers gave us something that will turn into a 1703f85e193739c953358c865005855253af4f68a497John McCall // retainable object pointer after we slap the first pointer on it. 1704f85e193739c953358c865005855253af4f68a497John McCall if (!isBlockPointer && !declSpecType->isObjCObjectType()) 1705f85e193739c953358c865005855253af4f68a497John McCall return; 1706f85e193739c953358c865005855253af4f68a497John McCall 1707f85e193739c953358c865005855253af4f68a497John McCall // Look for an explicit lifetime attribute there. 1708f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(outermostPointerIndex); 17091c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis if (chunk.Kind != DeclaratorChunk::Pointer && 17101c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis chunk.Kind != DeclaratorChunk::BlockPointer) 17111c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis return; 1712f85e193739c953358c865005855253af4f68a497John McCall for (const AttributeList *attr = chunk.getAttrs(); attr; 1713f85e193739c953358c865005855253af4f68a497John McCall attr = attr->getNext()) 1714b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis if (attr->getKind() == AttributeList::AT_objc_ownership) 1715f85e193739c953358c865005855253af4f68a497John McCall return; 1716f85e193739c953358c865005855253af4f68a497John McCall 1717a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, Qualifiers::OCL_Autoreleasing, 1718a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis outermostPointerIndex); 1719f85e193739c953358c865005855253af4f68a497John McCall 1720f85e193739c953358c865005855253af4f68a497John McCall // Any other number of pointers/references does not trigger the rule. 1721f85e193739c953358c865005855253af4f68a497John McCall } else return; 1722f85e193739c953358c865005855253af4f68a497John McCall 1723f85e193739c953358c865005855253af4f68a497John McCall // TODO: mark whether we did this inference? 1724f85e193739c953358c865005855253af4f68a497John McCall} 1725f85e193739c953358c865005855253af4f68a497John McCall 1726d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruthstatic void DiagnoseIgnoredQualifiers(unsigned Quals, 1727d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation ConstQualLoc, 1728d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation VolatileQualLoc, 1729d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation RestrictQualLoc, 1730d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth Sema& S) { 1731d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth std::string QualStr; 1732d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth unsigned NumQuals = 0; 1733d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation Loc; 1734d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1735d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint ConstFixIt; 1736d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint VolatileFixIt; 1737d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint RestrictFixIt; 1738d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1739a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg const SourceManager &SM = S.getSourceManager(); 1740a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg 1741d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // FIXME: The locations here are set kind of arbitrarily. It'd be nicer to 1742d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // find a range and grow it to encompass all the qualifiers, regardless of 1743d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // the order in which they textually appear. 1744d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Const) { 1745d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ConstFixIt = FixItHint::CreateRemoval(ConstQualLoc); 1746d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth QualStr = "const"; 1747a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg ++NumQuals; 1748a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(ConstQualLoc, Loc)) 1749a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = ConstQualLoc; 1750d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1751d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Volatile) { 1752d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth VolatileFixIt = FixItHint::CreateRemoval(VolatileQualLoc); 1753a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg QualStr += (NumQuals == 0 ? "volatile" : " volatile"); 1754d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ++NumQuals; 1755a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(VolatileQualLoc, Loc)) 1756a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = VolatileQualLoc; 1757d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1758d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Restrict) { 1759d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth RestrictFixIt = FixItHint::CreateRemoval(RestrictQualLoc); 1760a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg QualStr += (NumQuals == 0 ? "restrict" : " restrict"); 1761d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ++NumQuals; 1762a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(RestrictQualLoc, Loc)) 1763a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = RestrictQualLoc; 1764d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1765d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1766d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(NumQuals > 0 && "No known qualifiers?"); 1767d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1768d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth S.Diag(Loc, diag::warn_qual_return_type) 1769a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg << QualStr << NumQuals << ConstFixIt << VolatileFixIt << RestrictFixIt; 1770d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth} 1771d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 17728cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType GetDeclSpecTypeForDeclarator(TypeProcessingState &state, 17738cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *&ReturnTypeInfo) { 17748cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &SemaRef = state.getSema(); 17758cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 1776930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 17778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ReturnTypeInfo = 0; 1778711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 17798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The TagDecl owned by the DeclSpec. 17808cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TagDecl *OwnedTagDecl = 0; 17818999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl 17823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 178398a5403ecf1d2b60ae8cbf43e54194bd762cacaaFariborz Jahanian case UnqualifiedId::IK_ImplicitSelfParam: 17843f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 17858999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl case UnqualifiedId::IK_Identifier: 17860486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 17873f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 17888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = ConvertDeclSpecToType(state); 17895db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 1790591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 1791d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 179215987970eeaa1842c29ec8797affd1c1dea05585Abramo Bagnara // Owned declaration is embedded in declarator. 1793d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl->setEmbeddedInDeclarator(true); 1794591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 1795930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 1796930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 17973f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 17980efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 17993f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 1800930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 180148026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // "void" instead. 18028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.VoidTy; 1803930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 180448026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 180548026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 180648026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 180748026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 18088cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.GetTypeFromParser(D.getName().ConversionFunctionId, 18098cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis &ReturnTypeInfo); 181048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 1811930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 1812dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor 1813711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (D.getAttributes()) 1814711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeTypeAttrsFromDeclarator(state, T); 1815711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1816d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.spec.auto]p5: reject 'auto' if it is not in an allowed context. 1817d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // In C++11, a function declarator using 'auto' must have a trailing return 18188110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // type (this is checked later) and we can skip this. In other languages 18198110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // using auto, we need to check regardless. 182034b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 18214e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (!SemaRef.getLangOpts().CPlusPlus0x || !D.isFunctionDeclarator())) { 1822baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 18231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1824baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 1825baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 1826b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("K&R type lists aren't allowed in C++"); 1827f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 1828f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman llvm_unreachable("Can't specify a type specifier in lambda grammar"); 1829cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 1830cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 1831baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 1832baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 0; // Function prototype 1833baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1834baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 18357a614d8380297fcd2bc23986241905d97222948cRichard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static) 18367a614d8380297fcd2bc23986241905d97222948cRichard Smith break; 18378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (cast<TagDecl>(SemaRef.CurContext)->getTagKind()) { 1838eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27David Blaikie case TTK_Enum: llvm_unreachable("unhandled tag kind"); 1839465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Struct: Error = 1; /* Struct member */ break; 1840465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Union: Error = 2; /* Union member */ break; 1841465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Class: Error = 3; /* Class member */ break; 18421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1843baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1844baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 184517b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 1846baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 4; // Exception declaration 1847baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1848baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 1849baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 5; // Template parameter 1850baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1851baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 185234b41d939a1328f484511c6002ba2456db879a29Richard Smith Error = 6; // Block literal 185334b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 185434b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TemplateTypeArgContext: 185534b41d939a1328f484511c6002ba2456db879a29Richard Smith Error = 7; // Template type argument 185634b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 1857162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 18583e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 1859162e1c1b487352434552147967c3dd296ebee2f7Richard Smith Error = 9; // Type alias 1860162e1c1b487352434552147967c3dd296ebee2f7Richard Smith break; 18617796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 18627796eb5643244f3134834253ce5ea89107ac21c1Richard Smith Error = 10; // Function return type 18637796eb5643244f3134834253ce5ea89107ac21c1Richard Smith break; 186434b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TypeNameContext: 18650b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis Error = 11; // Generic 1866baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1867baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 1868baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 1869baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 1870baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 18710b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 1872baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1873baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1874baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 1875ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 1876ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith Error = 8; 1877ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith 18788110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // In Objective-C it is an error to use 'auto' on a function declarator. 18798110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith if (D.isFunctionDeclarator()) 1880162e1c1b487352434552147967c3dd296ebee2f7Richard Smith Error = 10; 18818110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith 1882d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.spec.auto]p2: 'auto' is always fine if the declarator 1883e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // contains a trailing return type. That is only legal at the outermost 1884e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // level. Check all declarator chunks (outermost first) anyway, to give 1885e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // better diagnostics. 18864e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (SemaRef.getLangOpts().CPlusPlus0x && Error != -1) { 1887e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 1888e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned chunkIndex = e - i - 1; 1889e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith state.setCurrentChunkIndex(chunkIndex); 1890e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 1891e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (DeclType.Kind == DeclaratorChunk::Function) { 1892e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 1893e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (FTI.TrailingReturnType) { 1894e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith Error = -1; 1895e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith break; 1896e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1897e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1898e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1899e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1900e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 1901baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 19028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 19038cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_auto_not_allowed) 1904baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson << Error; 19058cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.IntTy; 1906baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 19070aa86c0463a881be85fd34e04c7de3379997621dRichard Smith } else 19080aa86c0463a881be85fd34e04c7de3379997621dRichard Smith SemaRef.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 19090aa86c0463a881be85fd34e04c7de3379997621dRichard Smith diag::warn_cxx98_compat_auto_type_specifier); 1910baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 19118cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 19124e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (SemaRef.getLangOpts().CPlusPlus && 19135e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall OwnedTagDecl && OwnedTagDecl->isCompleteDefinition()) { 19148cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Check the contexts where C++ forbids the declaration of a new class 19158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // or enumeration in a type-specifier-seq. 19168cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (D.getContext()) { 19177796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 19187796eb5643244f3134834253ce5ea89107ac21c1Richard Smith // Class and enumeration definitions are syntactically not allowed in 19197796eb5643244f3134834253ce5ea89107ac21c1Richard Smith // trailing return types. 19207796eb5643244f3134834253ce5ea89107ac21c1Richard Smith llvm_unreachable("parser should not have allowed this"); 19217796eb5643244f3134834253ce5ea89107ac21c1Richard Smith break; 19228cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::FileContext: 19238cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::MemberContext: 19248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockContext: 19258cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ForContext: 19268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockLiteralContext: 1927f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 1928d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.type]p3: 19298cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // A type-specifier-seq shall not define a class or enumeration unless 19308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // it appears in the type-id of an alias-declaration (7.1.3) that is not 19318cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // the declaration of a template-declaration. 19328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasDeclContext: 19338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasTemplateContext: 19358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 19368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_alias_template) 19378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 19388cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TypeNameContext: 19408cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateParamContext: 19418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXNewContext: 19428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXCatchContext: 19438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ObjCCatchContext: 19448cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateTypeArgContext: 19458cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 19468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_type_specifier) 19478cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 19488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::PrototypeContext: 1950cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 1951cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 19528cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::KNRTypeListContext: 19538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ [dcl.fct]p6: 19548cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Types shall not be defined in return or parameter types. 19558cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 19568cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_param_type) 19578cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 19588cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ConditionContext: 19608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ 6.4p2: 19618cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The type-specifier-seq shall not contain typedef and shall not declare 19628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // a new class or enumeration. 19638cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 19648cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_condition); 19658cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19668cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 19678cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 19688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 19698cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return T; 19708cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 19718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 1972a08c2fb74ef823c185619ecc532f8fced6a1982fBenjamin Kramerstatic std::string getFunctionQualifiersAsString(const FunctionProtoType *FnTy){ 1973d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith std::string Quals = 1974d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Qualifiers::fromCVRMask(FnTy->getTypeQuals()).getAsString(); 1975d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 1976d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith switch (FnTy->getRefQualifier()) { 1977d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_None: 1978d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 1979d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 1980d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_LValue: 1981d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!Quals.empty()) 1982d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += ' '; 1983d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += '&'; 1984d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 1985d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 1986d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_RValue: 1987d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!Quals.empty()) 1988d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += ' '; 1989d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += "&&"; 1990d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 1991d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 1992d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 1993d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return Quals; 1994d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith} 1995d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 1996d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// Check that the function type T, which has a cv-qualifier or a ref-qualifier, 1997d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// can be contained within the declarator chunk DeclType, and produce an 1998d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// appropriate diagnostic if not. 1999d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smithstatic void checkQualifiedFunction(Sema &S, QualType T, 2000d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DeclaratorChunk &DeclType) { 2001d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++98 [dcl.fct]p4 / C++11 [dcl.fct]p6: a function type with a 2002d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // cv-qualifier or a ref-qualifier can only appear at the topmost level 2003d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // of a type. 2004d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith int DiagKind = -1; 2005d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith switch (DeclType.Kind) { 2006d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Paren: 2007d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::MemberPointer: 2008d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // These cases are permitted. 2009d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return; 2010d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Array: 2011d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Function: 2012d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // These cases don't allow function types at all; no need to diagnose the 2013d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // qualifiers separately. 2014d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return; 2015d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::BlockPointer: 2016d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 0; 2017d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2018d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Pointer: 2019d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 1; 2020d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2021d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Reference: 2022d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 2; 2023d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2024d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 2025d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2026d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith assert(DiagKind != -1); 2027d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith S.Diag(DeclType.Loc, diag::err_compound_qualified_function_type) 2028d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << DiagKind << isa<FunctionType>(T.IgnoreParens()) << T 2029d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << getFunctionQualifiersAsString(T->castAs<FunctionProtoType>()); 2030d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith} 2031d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 20328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic TypeSourceInfo *GetFullTypeForDeclarator(TypeProcessingState &state, 20338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType declSpecType, 20348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *TInfo) { 20358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 20368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = declSpecType; 20378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 20388cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 20398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ASTContext &Context = S.Context; 20404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie const LangOptions &LangOpts = S.getLangOpts(); 20418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 20428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis bool ImplicitlyNoexcept = false; 20438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (D.getName().getKind() == UnqualifiedId::IK_OperatorFunctionId && 20448cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis LangOpts.CPlusPlus0x) { 20458cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis OverloadedOperatorKind OO = D.getName().OperatorFunctionId.Operator; 20468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis /// In C++0x, deallocation functions (normal and array operator delete) 20478cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis /// are implicitly noexcept. 20488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (OO == OO_Delete || OO == OO_Array_Delete) 20498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ImplicitlyNoexcept = true; 20508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 205134b41d939a1328f484511c6002ba2456db879a29Richard Smith 2052cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 2053cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 2054cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 2055cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 20561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2057162e1c1b487352434552147967c3dd296ebee2f7Richard Smith // Does this declaration declare a typedef-name? 2058162e1c1b487352434552147967c3dd296ebee2f7Richard Smith bool IsTypedefName = 2059162e1c1b487352434552147967c3dd296ebee2f7Richard Smith D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef || 20603e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasDeclContext || 20613e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext; 2062162e1c1b487352434552147967c3dd296ebee2f7Richard Smith 2063d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // Does T refer to a function type with a cv-qualifier or a ref-qualifier? 2064d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith bool IsQualifiedFunction = T->isFunctionProtoType() && 2065d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith (T->castAs<FunctionProtoType>()->getTypeQuals() != 0 || 2066d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith T->castAs<FunctionProtoType>()->getRefQualifier() != RQ_None); 2067d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 206898eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 206998eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 207098eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 20718ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 2072711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex = e - i - 1; 2073711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(chunkIndex); 2074711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 2075d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (IsQualifiedFunction) { 2076d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith checkQualifiedFunction(S, T, DeclType); 2077d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith IsQualifiedFunction = DeclType.Kind == DeclaratorChunk::Paren; 2078d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 20795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 2080075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara case DeclaratorChunk::Paren: 20818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildParenType(T); 2082075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara break; 20835618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 20849af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 20859af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 20868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_blocks_disable); 20871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildBlockPointerType(T, D.getIdentifierLoc(), Name); 20892865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Cls.TypeQuals) 20908cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); 20915618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 20925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 20936a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 20946a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 20958cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 20968cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 20976a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 20986a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 20996a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 21008cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjC1 && T->getAs<ObjCObjectType>()) { 2101c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = Context.getObjCObjectPointerType(T); 21022865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 21038cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 210414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 210514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 21068cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildPointerType(T, DeclType.Loc, Name); 21072865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 21088cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 2109711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 21105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 21110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 21126a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 21136a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 21148cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 21158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 21166a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 21176a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 21186a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 21198cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); 21202865474261a608c7873b87ba4af110d17907896dJohn McCall 21212865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Quals; 21222865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ref.HasRestrict) 21238cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); 21245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 21250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 21265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 21276a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 21286a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 21298cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 21308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 21316a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 21326a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 21336a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 2134fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 213594f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 21365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 21375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 21385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 21395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 21405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 21415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 21425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 2143c05a94b7accd4035bf5d5897c434c445b22da855John McCall if (ASM == ArrayType::Star && !D.isPrototypeContext()) { 2144f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 2145f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 2146f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 21478cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 2148f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 2149f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 2150f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 21518ac2c66a1442985091c5ec2b33ce6d3df3bcb529Eli Friedman T = S.BuildArrayType(T, ASM, ArraySize, ATI.TypeQuals, 21528cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 21535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 21545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2155f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 21565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 21575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 21585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 21595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 2160d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith IsQualifiedFunction = FTI.TypeQuals || FTI.hasRefQualifier(); 21613cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 216234b41d939a1328f484511c6002ba2456db879a29Richard Smith // Check for auto functions and trailing return type and adjust the 216334b41d939a1328f484511c6002ba2456db879a29Richard Smith // return type accordingly. 216434b41d939a1328f484511c6002ba2456db879a29Richard Smith if (!D.isInvalidType()) { 216534b41d939a1328f484511c6002ba2456db879a29Richard Smith // trailing-return-type is only required if we're declaring a function, 216634b41d939a1328f484511c6002ba2456db879a29Richard Smith // and not, for instance, a pointer to a function. 216734b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 216834b41d939a1328f484511c6002ba2456db879a29Richard Smith !FTI.TrailingReturnType && chunkIndex == 0) { 21698cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 217034b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_auto_missing_trailing_return); 217134b41d939a1328f484511c6002ba2456db879a29Richard Smith T = Context.IntTy; 217234b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 217334b41d939a1328f484511c6002ba2456db879a29Richard Smith } else if (FTI.TrailingReturnType) { 2174e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // T must be exactly 'auto' at this point. See CWG issue 681. 2175e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (isa<ParenType>(T)) { 21768cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 2177e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diag::err_trailing_return_in_parens) 2178e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith << T << D.getDeclSpec().getSourceRange(); 2179e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2180f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman } else if (D.getContext() != Declarator::LambdaExprContext && 2181f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman (T.hasQualifiers() || !isa<AutoType>(T))) { 21828cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 218334b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_trailing_return_without_auto) 218434b41d939a1328f484511c6002ba2456db879a29Richard Smith << T << D.getDeclSpec().getSourceRange(); 218534b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 218634b41d939a1328f484511c6002ba2456db879a29Richard Smith } 218734b41d939a1328f484511c6002ba2456db879a29Richard Smith 21888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.GetTypeFromParser( 218934b41d939a1328f484511c6002ba2456db879a29Richard Smith ParsedType::getFromOpaquePtr(FTI.TrailingReturnType), 21908cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis &TInfo); 219134b41d939a1328f484511c6002ba2456db879a29Richard Smith } 219234b41d939a1328f484511c6002ba2456db879a29Richard Smith } 219334b41d939a1328f484511c6002ba2456db879a29Richard Smith 2194e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C99 6.7.5.3p1: The return type may not be a function or array type. 2195e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // For conversion functions, we'll diagnose this particular error later. 2196e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if ((T->isArrayType() || T->isFunctionType()) && 2197e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 2198e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned diagID = diag::err_func_returning_array_function; 2199e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // Last processing chunk in block context means this function chunk 2200e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // represents the block. 2201e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (chunkIndex == 0 && 2202e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.getContext() == Declarator::BlockLiteralContext) 2203e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diagID = diag::err_block_returning_array_function; 22048cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diagID) << T->isFunctionType() << T; 2205e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith T = Context.IntTy; 2206e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2207e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2208e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 2209aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Do not allow returning half FP value. 2210aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 2211aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 2212aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov S.Diag(D.getIdentifierLoc(), 2213aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov diag::err_parameters_retval_cannot_have_fp16_type) << 1 2214aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov << FixItHint::CreateInsertion(D.getIdentifierLoc(), "*"); 2215aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov D.setInvalidType(true); 2216aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 2217aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 22185291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // cv-qualifiers on return types are pointless except when the type is a 22195291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // class type in C++. 2220fff951371dfc309160a99d423e43a7841aeb35aaDouglas Gregor if (isa<PointerType>(T) && T.getLocalCVRQualifiers() && 22211e15394853bfae25112d9cc6b445504905e1f34aRafael Espindola (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId) && 22228cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis (!LangOpts.CPlusPlus || !T->isDependentType())) { 2223d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(chunkIndex + 1 < e && "No DeclaratorChunk for the return type?"); 2224d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DeclaratorChunk ReturnTypeChunk = D.getTypeObject(chunkIndex + 1); 2225d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(ReturnTypeChunk.Kind == DeclaratorChunk::Pointer); 2226d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2227d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DeclaratorChunk::PointerTypeInfo &PTI = ReturnTypeChunk.Ptr; 2228d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2229d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DiagnoseIgnoredQualifiers(PTI.TypeQuals, 2230d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.ConstQualLoc), 2231d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.VolatileQualLoc), 2232d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.RestrictQualLoc), 22338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S); 2234d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2235d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } else if (T.getCVRQualifiers() && D.getDeclSpec().getTypeQualifiers() && 22368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis (!LangOpts.CPlusPlus || 22375291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor (!T->isDependentType() && !T->isRecordType()))) { 2238d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2239d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DiagnoseIgnoredQualifiers(D.getDeclSpec().getTypeQualifiers(), 2240d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getConstSpecLoc(), 2241d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getVolatileSpecLoc(), 2242d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getRestrictSpecLoc(), 22438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S); 22445291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor } 2245d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 22468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 2247402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 2248402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 2249b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl *Tag = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 22505e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall if (Tag->isCompleteDefinition()) 22518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 2252402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 2253402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 2254402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 22553cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 22563cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 2257162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (IsTypedefName && FTI.getExceptionSpecType()) 22588cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getExceptionSpecLoc(), diag::err_exception_spec_in_typedef) 22593e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith << (D.getContext() == Declarator::AliasDeclContext || 22603e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext); 22613cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 22628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && !FTI.isVariadic && !LangOpts.CPlusPlus) { 22632865474261a608c7873b87ba4af110d17907896dJohn McCall // Simple void foo(), where the incoming T is the result type. 22642865474261a608c7873b87ba4af110d17907896dJohn McCall T = Context.getFunctionNoProtoType(T); 22652865474261a608c7873b87ba4af110d17907896dJohn McCall } else { 22662865474261a608c7873b87ba4af110d17907896dJohn McCall // We allow a zero-parameter variadic function in C if the 22672865474261a608c7873b87ba4af110d17907896dJohn McCall // function is marked with the "overloadable" attribute. Scan 22682865474261a608c7873b87ba4af110d17907896dJohn McCall // for this attribute now. 22698cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && FTI.isVariadic && !LangOpts.CPlusPlus) { 2270965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 2271965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 2272965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 2273965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (Attrs->getKind() == AttributeList::AT_overloadable) { 2274965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 2275965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 2276965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2277965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2278965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 2279965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 22808cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 2281c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 22822865474261a608c7873b87ba4af110d17907896dJohn McCall 22832865474261a608c7873b87ba4af110d17907896dJohn McCall if (FTI.NumArgs && FTI.ArgInfo[0].Param == 0) { 2284788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function 2285788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // definition. 22868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 22872865474261a608c7873b87ba4af110d17907896dJohn McCall D.setInvalidType(true); 22882865474261a608c7873b87ba4af110d17907896dJohn McCall break; 22892865474261a608c7873b87ba4af110d17907896dJohn McCall } 22902865474261a608c7873b87ba4af110d17907896dJohn McCall 2291e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 2292e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = FTI.isVariadic; 2293eefb3d5b49c844347f212073a7e975b8118fe8e9Richard Smith EPI.HasTrailingReturn = FTI.TrailingReturnType; 2294e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = FTI.TypeQuals; 2295c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = !FTI.hasRefQualifier()? RQ_None 2296c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : FTI.RefQualifierIsLValueRef? RQ_LValue 2297c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : RQ_RValue; 2298c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor 22995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 23005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 23015f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 23022865474261a608c7873b87ba4af110d17907896dJohn McCall ArgTys.reserve(FTI.NumArgs); 23031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23045f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<bool, 16> ConsumedArguments; 2305f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.reserve(FTI.NumArgs); 2306f85e193739c953358c865005855253af4f68a497John McCall bool HasAnyConsumedArguments = false; 2307f85e193739c953358c865005855253af4f68a497John McCall 23085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 2309d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 23108123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner QualType ArgTy = Param->getType(); 231178c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 23122dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 23132dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Adjust the parameter type. 231479e6bd379773447a74cc3e579d9081e4c5cb6d63Douglas Gregor assert((ArgTy == Context.getAdjustedParameterType(ArgTy)) && 231579e6bd379773447a74cc3e579d9081e4c5cb6d63Douglas Gregor "Unadjusted type?"); 23162dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 23175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 23185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 231972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 23202dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 23215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 23225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 23235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 23245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 23258cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_only_param); 23262ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 23278123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 23282ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 23292ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 23308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[i].IdentLoc, 23314565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 23322ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 23338123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 23342ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 23352ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 23360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 23378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_param_qualified); 23381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23392ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 23402ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 23412ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 2342aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ArgTy->isHalfType()) { 2343aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 2344aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 2345aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov S.Diag(Param->getLocation(), 2346aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov diag::err_parameters_retval_cannot_have_fp16_type) << 0 2347aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov << FixItHint::CreateInsertion(Param->getLocation(), "*"); 2348aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov D.setInvalidType(); 2349eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 2350eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 2351a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 2352eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2353183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 2354eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall if (BTy->getKind() == BuiltinType::Float) { 2355eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 2356eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2357eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall } 2358eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 23595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 236056a965c0f77c9e6bffd65cc8f8796442a8527381Fariborz Jahanian 23618cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjCAutoRefCount) { 2362f85e193739c953358c865005855253af4f68a497John McCall bool Consumed = Param->hasAttr<NSConsumedAttr>(); 2363f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.push_back(Consumed); 2364f85e193739c953358c865005855253af4f68a497John McCall HasAnyConsumedArguments |= Consumed; 2365f85e193739c953358c865005855253af4f68a497John McCall } 2366f85e193739c953358c865005855253af4f68a497John McCall 236754e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 23685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2369465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2370f85e193739c953358c865005855253af4f68a497John McCall if (HasAnyConsumedArguments) 2371f85e193739c953358c865005855253af4f68a497John McCall EPI.ConsumedArguments = ConsumedArguments.data(); 2372f85e193739c953358c865005855253af4f68a497John McCall 23735f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 4> Exceptions; 237474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor SmallVector<ParsedType, 2> DynamicExceptions; 237574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor SmallVector<SourceRange, 2> DynamicExceptionRanges; 237674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor Expr *NoexceptExpr = 0; 237774e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor 23788b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl if (FTI.getExceptionSpecType() == EST_Dynamic) { 237974e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor // FIXME: It's rather inefficient to have to split into two vectors 238074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor // here. 238174e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor unsigned N = FTI.NumExceptions; 238274e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions.reserve(N); 238374e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges.reserve(N); 238474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor for (unsigned I = 0; I != N; ++I) { 238574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions.push_back(FTI.Exceptions[I].Ty); 238674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges.push_back(FTI.Exceptions[I].Range); 2387e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 23888b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl } else if (FTI.getExceptionSpecType() == EST_ComputedNoexcept) { 238974e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor NoexceptExpr = FTI.NoexceptExpr; 239074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor } 239174e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor 239274e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor S.checkExceptionSpecification(FTI.getExceptionSpecType(), 239374e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions, 239474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges, 239574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor NoexceptExpr, 239674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor Exceptions, 239774e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor EPI); 239874e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor 239974e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor if (FTI.getExceptionSpecType() == EST_None && 240074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor ImplicitlyNoexcept && chunkIndex == 0) { 24018999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl // Only the outermost chunk is marked noexcept, of course. 24028999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl EPI.ExceptionSpecType = EST_BasicNoexcept; 2403ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 2404465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2405e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall T = Context.getFunctionType(T, ArgTys.data(), ArgTys.size(), EPI); 24065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 240704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 24085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 24095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2410f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 2411f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 24127bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara CXXScopeSpec &SS = DeclType.Mem.Scope(); 2413f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 24147bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (SS.isInvalid()) { 2415edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 2416edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 24178cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } else if (S.isDependentScopeSpecifier(SS) || 24188cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis dyn_cast_or_null<CXXRecordDecl>(S.computeDeclContext(SS))) { 24191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 24207bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara = static_cast<NestedNameSpecifier*>(SS.getScopeRep()); 242187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 242287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 242387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 24247bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 24254a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 242687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 242787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 242887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 242914aba76042e041b2c5e439bf4ae353a0a3c7fd73Douglas Gregor case NestedNameSpecifier::NamespaceAlias: 243087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 24319f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 24327bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara 243387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 243487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 243587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 243691ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Note: if the NNS has a prefix and ClsType is a nondependent 243791ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // TemplateSpecializationType, then the NNS prefix is NOT included 243891ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // in ClsType; hence we wrap ClsType into an ElaboratedType. 243991ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // NOTE: in particular, no wrap occurs if ClsType already is an 244091ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Elaborated, DependentName, or DependentTemplateSpecialization. 244191ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara if (NNSPrefix && isa<TemplateSpecializationType>(NNS->getAsType())) 24427bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getElaboratedType(ETK_None, NNSPrefix, ClsType); 244387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 244487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 2445f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 24468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Mem.Scope().getBeginLoc(), 2447949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 2448949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 2449949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 2450f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 2451f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2452f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2453949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 24548cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildMemberPointerType(T, ClsType, DeclType.Loc, D.getIdentifier()); 2455949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 2456f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 2457949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 24582865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (DeclType.Mem.TypeQuals) { 24598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); 2460f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2461f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 2462f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2463f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2464cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 2465cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 2466cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 2467cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 2468cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 2469c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 2470711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = const_cast<AttributeList*>(DeclType.getAttrs())) 2471711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 24725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2473971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 24748cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && T->isFunctionType()) { 2475183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 2476778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 2477971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 2478708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // C++ 8.3.5p4: 2479708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // A cv-qualifier-seq shall only be part of the function type 2480708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // for a nonstatic member function, the function type to which a pointer 2481708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // to member refers, or the top-level function type of a function typedef 2482708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // declaration. 2483683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // 2484683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Core issue 547 also allows cv-qualifiers on function types that are 2485683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // top-level template type arguments. 2486613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall bool FreeFunction; 2487613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall if (!D.getCXXScopeSpec().isSet()) { 2488906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman FreeFunction = ((D.getContext() != Declarator::MemberContext && 2489906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman D.getContext() != Declarator::LambdaExprContext) || 2490613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall D.getDeclSpec().isFriendSpecified()); 2491613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } else { 24928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis DeclContext *DC = S.computeDeclContext(D.getCXXScopeSpec()); 2493613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (DC && !DC->isRecord()); 2494613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } 2495613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall 249655dec868977ccb89cab0286122f9345f63bb5de7Richard Smith // C++0x [dcl.constexpr]p8: A constexpr specifier for a non-static member 249755dec868977ccb89cab0286122f9345f63bb5de7Richard Smith // function that is not a constructor declares that function to be const. 249855dec868977ccb89cab0286122f9345f63bb5de7Richard Smith if (D.getDeclSpec().isConstexprSpecified() && !FreeFunction && 24991bf9a9e6a5bdc0de7939908855dcddf46b661800Richard Smith D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_static && 250055dec868977ccb89cab0286122f9345f63bb5de7Richard Smith D.getName().getKind() != UnqualifiedId::IK_ConstructorName && 250155dec868977ccb89cab0286122f9345f63bb5de7Richard Smith D.getName().getKind() != UnqualifiedId::IK_ConstructorTemplateId && 250255dec868977ccb89cab0286122f9345f63bb5de7Richard Smith !(FnTy->getTypeQuals() & DeclSpec::TQ_const)) { 250355dec868977ccb89cab0286122f9345f63bb5de7Richard Smith // Rebuild function type adding a 'const' qualifier. 250455dec868977ccb89cab0286122f9345f63bb5de7Richard Smith FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 250555dec868977ccb89cab0286122f9345f63bb5de7Richard Smith EPI.TypeQuals |= DeclSpec::TQ_const; 250655dec868977ccb89cab0286122f9345f63bb5de7Richard Smith T = Context.getFunctionType(FnTy->getResultType(), 250755dec868977ccb89cab0286122f9345f63bb5de7Richard Smith FnTy->arg_type_begin(), 250855dec868977ccb89cab0286122f9345f63bb5de7Richard Smith FnTy->getNumArgs(), EPI); 250955dec868977ccb89cab0286122f9345f63bb5de7Richard Smith } 251055dec868977ccb89cab0286122f9345f63bb5de7Richard Smith 2511d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.fct]p6 (w/DR1417): 2512d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // An attempt to specify a function type with a cv-qualifier-seq or a 2513d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // ref-qualifier (including by typedef-name) is ill-formed unless it is: 2514d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the function type for a non-static member function, 2515d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the function type to which a pointer to member refers, 2516d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the top-level function type of a function typedef declaration or 2517d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // alias-declaration, 2518d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the type-id in the default argument of a type-parameter, or 2519d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the type-id of a template-argument for a type-parameter 2520d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (IsQualifiedFunction && 2521d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith !(!FreeFunction && 2522d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_static) && 2523d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith !IsTypedefName && 2524d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith D.getContext() != Declarator::TemplateTypeArgContext) { 252596a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar SourceLocation Loc = D.getLocStart(); 2526d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith SourceRange RemovalRange; 2527d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith unsigned I; 2528d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (D.isFunctionDeclarator(I)) { 2529d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith SmallVector<SourceLocation, 4> RemovalLocs; 2530d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith const DeclaratorChunk &Chunk = D.getTypeObject(I); 2531d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith assert(Chunk.Kind == DeclaratorChunk::Function); 2532d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.hasRefQualifier()) 2533d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getRefQualifierLoc()); 2534d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.TypeQuals & Qualifiers::Const) 2535d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getConstQualifierLoc()); 2536d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.TypeQuals & Qualifiers::Volatile) 2537d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getVolatileQualifierLoc()); 2538d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // FIXME: We do not track the location of the __restrict qualifier. 2539d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith //if (Chunk.Fun.TypeQuals & Qualifiers::Restrict) 2540d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // RemovalLocs.push_back(Chunk.Fun.getRestrictQualifierLoc()); 2541d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!RemovalLocs.empty()) { 2542d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith std::sort(RemovalLocs.begin(), RemovalLocs.end(), 2543d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith SourceManager::LocBeforeThanCompare(S.getSourceManager())); 2544d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalRange = SourceRange(RemovalLocs.front(), RemovalLocs.back()); 2545d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Loc = RemovalLocs.front(); 2546683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2547683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2548d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2549d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith S.Diag(Loc, diag::err_invalid_qualified_function_type) 2550d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << FreeFunction << D.isFunctionDeclarator() << T 2551d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << getFunctionQualifiersAsString(FnTy) 2552d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << FixItHint::CreateRemoval(RemovalRange); 2553d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2554d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // Strip the cv-qualifiers and ref-qualifiers from the type. 2555d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 2556d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith EPI.TypeQuals = 0; 2557d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith EPI.RefQualifier = RQ_None; 2558d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2559d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith T = Context.getFunctionType(FnTy->getResultType(), 2560d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith FnTy->arg_type_begin(), 2561d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith FnTy->getNumArgs(), EPI); 2562971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 2563971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 25641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2565711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any undistributed attributes from the declarator. 2566711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) 2567711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = D.getAttributes()) 2568711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 2569711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2570711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnose any ignored type attributes. 2571711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) state.diagnoseIgnoredTypeAttrs(T); 2572711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2573148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // C++0x [dcl.constexpr]p9: 2574148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // A constexpr specifier used in an object declaration declares the object 2575148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // as const. 2576148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne if (D.getDeclSpec().isConstexprSpecified() && T->isObjectType()) { 2577737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl T.addConst(); 2578737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl } 2579737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl 2580a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // If there was an ellipsis in the declarator, the declaration declares a 2581a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack whose type may be a pack expansion type. 2582a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (D.hasEllipsis() && !T.isNull()) { 2583a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 2584a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // A declarator-id or abstract-declarator containing an ellipsis shall 2585a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // only be used in a parameter-declaration. Such a parameter-declaration 2586a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // is a parameter pack (14.5.3). [...] 2587a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor switch (D.getContext()) { 2588a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::PrototypeContext: 2589a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 2590a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // [...] When it is part of a parameter-declaration-clause, the 2591a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack is a function parameter pack (14.5.3). The type T 2592a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // of the declarator-id of the function parameter pack shall contain 2593a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // a template parameter pack; each template parameter pack in T is 2594a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // expanded by the function parameter pack. 2595a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 2596a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // We represent function parameter packs as function parameters whose 2597a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // type is a pack expansion. 2598a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (!T->containsUnexpandedParameterPack()) { 25998cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getEllipsisLoc(), 2600a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor diag::err_function_parameter_pack_without_parameter_packs) 2601a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor << T << D.getSourceRange(); 2602a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 2603a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } else { 2604cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 2605a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2606a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2607a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 2608a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TemplateParamContext: 2609a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [temp.param]p15: 2610a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // If a template-parameter is a [...] is a parameter-declaration that 2611a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // declares a parameter pack (8.3.5), then the template-parameter is a 2612a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // template parameter pack (14.5.3). 2613a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 2614a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Note: core issue 778 clarifies that, if there are any unexpanded 2615a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter packs in the type of the non-type template parameter, then 2616a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // it expands those parameter packs. 2617a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (T->containsUnexpandedParameterPack()) 2618cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 2619e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith else 2620e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith S.Diag(D.getEllipsisLoc(), 2621e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith LangOpts.CPlusPlus0x 2622e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith ? diag::warn_cxx98_compat_variadic_templates 2623e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith : diag::ext_variadic_templates); 2624a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2625a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 2626a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::FileContext: 2627a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::KNRTypeListContext: 2628cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: // FIXME: special diagnostic here? 2629cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: // FIXME: special diagnostic here? 2630a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TypeNameContext: 26310b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 2632162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 26333e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 2634a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::MemberContext: 2635a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockContext: 2636a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ForContext: 2637a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ConditionContext: 2638a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::CXXCatchContext: 263917b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 2640a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockLiteralContext: 2641f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 26427796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 2643683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case Declarator::TemplateTypeArgContext: 2644a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // FIXME: We may want to allow parameter packs in block-literal contexts 2645a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // in the future. 26468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getEllipsisLoc(), diag::err_ellipsis_in_declarator_not_parameter); 2647a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 2648a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2649a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2650a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2651e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 2652bf1a028246d884a540aeafa38e89be59a269b072John McCall if (T.isNull()) 2653bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 2654bf1a028246d884a540aeafa38e89be59a269b072John McCall else if (D.isInvalidType()) 2655bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getTrivialTypeSourceInfo(T); 2656db7abf78dedc2ef6ccb42b3dac6ab330fe2ea469Argyrios Kyrtzidis 26578cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return S.GetTypeSourceInfoForDeclarator(D, T, TInfo); 26588cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 26598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 26608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// GetTypeForDeclarator - Convert the type for the specified 26618cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// declarator to Type instances. 26628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// 26638cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// The result of this call will never be null, but the associated 26648cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// type may be a null type if there's an unrecoverable error. 26658cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S) { 26668cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Determine the type of the declarator. Not all forms of declarator 26678cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // have a type. 26688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 26698cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeProcessingState state(*this, D); 26708cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 26718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 26728cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 26738cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (T.isNull()) 26748cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 26758cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 26764e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (D.isPrototypeContext() && getLangOpts().ObjCAutoRefCount) 26778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis inferARCWriteback(state, T); 2678db7abf78dedc2ef6ccb42b3dac6ab330fe2ea469Argyrios Kyrtzidis 26798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return GetFullTypeForDeclarator(state, T, ReturnTypeInfo); 26805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 26815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 268231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclSpec(Sema &S, 268331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 268431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 268531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType() && 268631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy.getObjCLifetime() == Qualifiers::OCL_None) { 268731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers qs; 268831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis qs.addObjCLifetime(ownership); 268931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy = S.Context.getQualifiedType(declSpecTy, qs); 269031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 269131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 269231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 269331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 269431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 269531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis unsigned chunkIndex) { 269631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 269731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 269831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 269931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Look for an explicit lifetime attribute. 270031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(chunkIndex); 270131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (const AttributeList *attr = chunk.getAttrs(); attr; 270231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis attr = attr->getNext()) 270331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (attr->getKind() == AttributeList::AT_objc_ownership) 270431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 270531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 270631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis const char *attrStr = 0; 270731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (ownership) { 27083026348bd4c13a0f83b59839f64065e0fcbea253David Blaikie case Qualifiers::OCL_None: llvm_unreachable("no ownership!"); 270931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: attrStr = "none"; break; 271031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Strong: attrStr = "strong"; break; 271131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Weak: attrStr = "weak"; break; 271231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: attrStr = "autoreleasing"; break; 271331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 271431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 271531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // If there wasn't one, add one (with an invalid source location 271631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // so that we don't make an AttributedType for it). 271731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis AttributeList *attr = D.getAttributePool() 271831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis .create(&S.Context.Idents.get("objc_ownership"), SourceLocation(), 271931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*scope*/ 0, SourceLocation(), 272031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis &S.Context.Idents.get(attrStr), SourceLocation(), 272131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*args*/ 0, 0, 272231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*declspec*/ false, /*C++0x*/ false); 272331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis spliceAttrIntoList(*attr, chunk.getAttrListRef()); 272431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 272531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // TODO: mark whether we did this inference? 272631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 272731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 27286ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis/// \brief Used for transfering ownership in casts resulting in l-values. 272931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnership(TypeProcessingState &state, 273031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 273131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 273231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 273331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 273431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 273531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis int inner = -1; 27366ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis bool hasIndirection = false; 273731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 273831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(i); 273931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (chunk.Kind) { 274031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Paren: 274131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Ignore parens. 274231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 274331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 274431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Array: 274531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Reference: 274631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Pointer: 27476ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 27486ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis hasIndirection = true; 274931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis inner = i; 275031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 275131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 275231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::BlockPointer: 27536ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 27546ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, ownership, i); 27556ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 275631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 275731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Function: 275831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::MemberPointer: 275931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 276031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 276131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 276231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 276331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (inner == -1) 27646ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 276531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 276631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(inner); 276731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (chunk.Kind == DeclaratorChunk::Pointer) { 276831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType()) 276931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 27706ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (declSpecTy->isObjCObjectType() && hasIndirection) 277131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclaratorChunk(state, ownership, inner); 277231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } else { 277331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis assert(chunk.Kind == DeclaratorChunk::Array || 277431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis chunk.Kind == DeclaratorChunk::Reference); 277531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 277631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 277731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 277831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 277931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclaratorCast(Declarator &D, QualType FromTy) { 278031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeProcessingState state(*this, D); 278131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 278231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 278331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType declSpecTy = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 278431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy.isNull()) 278531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 278631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 27874e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 278831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership = Context.getInnerObjCOwnership(FromTy); 278931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (ownership != Qualifiers::OCL_None) 279031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis transferARCOwnership(state, declSpecTy, ownership); 279131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 279231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 279331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return GetFullTypeForDeclarator(state, declSpecTy, ReturnTypeInfo); 279431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 279531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 279614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall/// Map an AttributedType::Kind to an AttributeList::Kind. 279714aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic AttributeList::Kind getAttrListKind(AttributedType::Kind kind) { 279814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall switch (kind) { 279914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_address_space: 280014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_address_space; 280114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_regparm: 280214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_regparm; 280314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_vector_size: 280414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_vector_size; 280514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_vector_type: 280614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_neon_vector_type; 280714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_polyvector_type: 280814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_neon_polyvector_type; 280914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_objc_gc: 281014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_objc_gc; 2811b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributedType::attr_objc_ownership: 2812b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis return AttributeList::AT_objc_ownership; 281314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_noreturn: 281414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_noreturn; 281514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_cdecl: 281614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_cdecl; 281714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_fastcall: 281814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_fastcall; 281914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_stdcall: 282014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_stdcall; 282114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_thiscall: 282214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_thiscall; 282314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_pascal: 282414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall return AttributeList::AT_pascal; 2825414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributedType::attr_pcs: 2826414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return AttributeList::AT_pcs; 282714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 282814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall llvm_unreachable("unexpected attribute kind!"); 282914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 283014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 283114aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic void fillAttributedTypeLoc(AttributedTypeLoc TL, 283214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall const AttributeList *attrs) { 283314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributedType::Kind kind = TL.getAttrKind(); 283414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 283514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no type attributes in the expected location!"); 283614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributeList::Kind parsedKind = getAttrListKind(kind); 283714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall while (attrs->getKind() != parsedKind) { 283814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall attrs = attrs->getNext(); 283914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no matching attribute in expected location!"); 284014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 284114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 284214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrNameLoc(attrs->getLoc()); 284314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrExprOperand()) 284414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrExprOperand(attrs->getArg(0)); 284514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall else if (TL.hasAttrEnumOperand()) 284614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrEnumOperandLoc(attrs->getParameterLoc()); 284714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 284814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // FIXME: preserve this information to here. 284914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrOperand()) 285014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrOperandParensRange(SourceRange()); 285114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 285214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 285351bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 285451bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 2855c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor ASTContext &Context; 285651bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 2857f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 285851bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 2859c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(ASTContext &Context, const DeclSpec &DS) 2860c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor : Context(Context), DS(DS) {} 2861f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 286214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 286314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, DS.getAttributes().getList()); 286414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall Visit(TL.getModifiedLoc()); 286514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 286651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 286751bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 286851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 286951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 287051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 287151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 287251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 287351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 2874c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 2875c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 2876c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Handle the base type, which might not have been written explicitly. 2877c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 2878c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(false); 2879c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.getBaseLoc().initialize(Context, SourceLocation()); 2880c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else { 2881c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(true); 2882c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getBaseLoc()); 2883c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 288454e14c4db764c0636160d26c5bbf491637c83a76John McCall 2885c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Protocol qualifiers. 288654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 288754e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 288854e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 288954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 289054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 289154e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 289254e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 289354e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 289454e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 289554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 289654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 289754e14c4db764c0636160d26c5bbf491637c83a76John McCall } 289851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 289954e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 290054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 2901c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getPointeeLoc()); 290251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 2903833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 2904a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 2905b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2906833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2907833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 2908833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 2909a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 29100daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.initialize(Context, DS.getTypeSpecTypeNameLoc()); 2911833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 2912833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 2913833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 2914e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeLoc OldTL = TInfo->getTypeLoc(); 2915e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo->getType()->getAs<ElaboratedType>()) { 2916e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeLoc ElabTL = cast<ElaboratedTypeLoc>(OldTL); 2917e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TemplateSpecializationTypeLoc NamedTL = 2918e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara cast<TemplateSpecializationTypeLoc>(ElabTL.getNamedTypeLoc()); 2919e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(NamedTL); 2920e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2921e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara else 2922e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<TemplateSpecializationTypeLoc>(OldTL)); 2923833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 2924cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 2925cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 2926cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 2927cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 2928cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 2929cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 2930cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 2931cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 2932cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 2933b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall assert(DS.getRepAsType()); 2934cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 2935b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2936cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 2937cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 2938ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt void VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) { 2939ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt // FIXME: This holds only because we only have one unary transform. 2940ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getTypeSpecType() == DeclSpec::TST_underlyingType); 2941ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setKWLoc(DS.getTypeSpecTypeLoc()); 2942ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setParensRange(DS.getTypeofParensRange()); 2943ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getRepAsType()); 2944ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TypeSourceInfo *TInfo = 0; 2945ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2946ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setUnderlyingTInfo(TInfo); 2947ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 2948ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 2949ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 2950ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 2951ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 2952ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 2953ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 2954ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 2955ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 2956ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 2957ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 2958ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 2959ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 2960ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 2961ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 2962ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 2963e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 2964e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 2965e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 2966253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 2967e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 2968b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 2969e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 2970e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<ElaboratedTypeLoc>(TInfo->getTypeLoc())); 2971e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 2972e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2973e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 297438a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara TL.setElaboratedKeywordLoc(Keyword != ETK_None 297538a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara ? DS.getTypeSpecTypeLoc() 297638a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara : SourceLocation()); 2977e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 29789e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 2979e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); 2980e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 2981e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 298266581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(DS.getTypeSpecType() == TST_typename); 298366581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TypeSourceInfo *TInfo = 0; 298466581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 298566581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(TInfo); 298666581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TL.copy(cast<DependentNameTypeLoc>(TInfo->getTypeLoc())); 298733500955d731c73717af52088b7fc0e7a85681e7John McCall } 298833500955d731c73717af52088b7fc0e7a85681e7John McCall void VisitDependentTemplateSpecializationTypeLoc( 298933500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypeLoc TL) { 299066581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(DS.getTypeSpecType() == TST_typename); 299166581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TypeSourceInfo *TInfo = 0; 299266581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 299366581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(TInfo); 299466581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TL.copy(cast<DependentTemplateSpecializationTypeLoc>( 299566581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TInfo->getTypeLoc())); 29960daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara } 29970daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara void VisitTagTypeLoc(TagTypeLoc TL) { 29980daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); 2999e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3000b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman void VisitAtomicTypeLoc(AtomicTypeLoc TL) { 3001b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman TL.setKWLoc(DS.getTypeSpecTypeLoc()); 3002b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman TL.setParensRange(DS.getTypeofParensRange()); 300343fe245b37c3cd36d837aab9eb98551328d30141Douglas Gregor 300443fe245b37c3cd36d837aab9eb98551328d30141Douglas Gregor TypeSourceInfo *TInfo = 0; 300543fe245b37c3cd36d837aab9eb98551328d30141Douglas Gregor Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 300643fe245b37c3cd36d837aab9eb98551328d30141Douglas Gregor TL.getValueLoc().initializeFullCopy(TInfo->getTypeLoc()); 3007b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 3008e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 300951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 301051bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 3011c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initialize(Context, DS.getTypeSpecTypeLoc()); 301251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 301351bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 3014eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 301551bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 3016b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ASTContext &Context; 301751bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 3018f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 301951bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 3020b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(ASTContext &Context, const DeclaratorChunk &Chunk) 3021b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara : Context(Context), Chunk(Chunk) {} 30224adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 302351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 30249f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 302551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 30264adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3027f85e193739c953358c865005855253af4f68a497John McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 3028f85e193739c953358c865005855253af4f68a497John McCall fillAttributedTypeLoc(TL, Chunk.getAttrs()); 3029f85e193739c953358c865005855253af4f68a497John McCall } 303051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 303151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 303251bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 30334adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 303451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 303551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 303651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 30374adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 303851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 303951bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 304051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 30414adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 304251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 304351bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 3044b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const CXXScopeSpec& SS = Chunk.Mem.Scope(); 3045b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NestedNameSpecifierLoc NNSLoc = SS.getWithLocInContext(Context); 3046b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3047b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const Type* ClsTy = TL.getClass(); 3048b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara QualType ClsQT = QualType(ClsTy, 0); 3049b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeSourceInfo *ClsTInfo = Context.CreateTypeSourceInfo(ClsQT, 0); 3050b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Now copy source location info into the type loc component. 3051b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc ClsTL = ClsTInfo->getTypeLoc(); 3052b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara switch (NNSLoc.getNestedNameSpecifier()->getKind()) { 3053b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Identifier: 3054b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara assert(isa<DependentNameType>(ClsTy) && "Unexpected TypeLoc"); 3055b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara { 3056fd9c42ed22fb4f7f865f7d8f8848df84ddf8262cAbramo Bagnara DependentNameTypeLoc DNTLoc = cast<DependentNameTypeLoc>(ClsTL); 305738a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara DNTLoc.setElaboratedKeywordLoc(SourceLocation()); 3058b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setQualifierLoc(NNSLoc.getPrefix()); 3059b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setNameLoc(NNSLoc.getLocalBeginLoc()); 3060b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3061b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3062b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3063b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpec: 3064b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpecWithTemplate: 3065b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara if (isa<ElaboratedType>(ClsTy)) { 3066b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ElaboratedTypeLoc ETLoc = *cast<ElaboratedTypeLoc>(&ClsTL); 306738a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara ETLoc.setElaboratedKeywordLoc(SourceLocation()); 3068b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ETLoc.setQualifierLoc(NNSLoc.getPrefix()); 3069b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc NamedTL = ETLoc.getNamedTypeLoc(); 3070b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NamedTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3071b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } else { 3072b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ClsTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3073b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3074b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3075b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3076b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Namespace: 3077b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::NamespaceAlias: 3078b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Global: 3079b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara llvm_unreachable("Nested-name-specifier must name a type"); 3080b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3081b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3082b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Finally fill in MemberPointerLocInfo fields. 308351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 3084b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TL.setClassTInfo(ClsTInfo); 30854adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 308651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 308751bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 308854e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 308954e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 309051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 309151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 309251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 309351bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 309451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 309551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 309651bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 309751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 309851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 309951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 310051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 310151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 310251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 310351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 310451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 3105796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeBegin(Chunk.Loc); 3106796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeEnd(Chunk.EndLoc); 3107dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor TL.setTrailingReturn(!!Chunk.Fun.TrailingReturnType); 310851bd803fbdade51d674598ed45da3d54190a656cJohn McCall 310951bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 311054e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 3111d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 311254e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 31134adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 311451bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 31154adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 3116075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara void VisitParenTypeLoc(ParenTypeLoc TL) { 3117075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Chunk.Kind == DeclaratorChunk::Paren); 3118075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setLParenLoc(Chunk.Loc); 3119075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setRParenLoc(Chunk.EndLoc); 3120075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 31211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 312251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 31239f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 31244adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 312551bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 312651bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 31274adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3128a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 312951bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 313051bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 313105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// 313205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// \param ReturnTypeInfo For declarators whose return type does not show 313305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// up in the normal place in the declaration specifiers (such as a C++ 313405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// conversion function), this pointer will refer to a type source information 313505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// for that return type. 3136a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 313705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas GregorSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T, 313805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo) { 3139a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 3140a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 314151bd803fbdade51d674598ed45da3d54190a656cJohn McCall 3142a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Handle parameter packs whose type is a pack expansion. 3143a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (isa<PackExpansionType>(T)) { 3144a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor cast<PackExpansionTypeLoc>(CurrTL).setEllipsisLoc(D.getEllipsisLoc()); 3145a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 3146a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 3147a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor 31488ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 314914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall while (isa<AttributedTypeLoc>(CurrTL)) { 315014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributedTypeLoc TL = cast<AttributedTypeLoc>(CurrTL); 315114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, D.getTypeObject(i).getAttrs()); 315214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall CurrTL = TL.getNextTypeLoc().getUnqualifiedLoc(); 315314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 315414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 3155b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(Context, D.getTypeObject(i)).Visit(CurrTL); 315651bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 31574adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 3158f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 3159b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // If we have different source information for the return type, use 3160b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // that. This really only applies to C++ conversion functions. 3161b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ReturnTypeInfo) { 316205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeLoc TL = ReturnTypeInfo->getTypeLoc(); 316305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); 316405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); 3165b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } else { 3166c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(Context, D.getDeclSpec()).Visit(CurrTL); 316705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor } 316805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 3169a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 31704adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 31714adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3172a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 3173b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallParsedType Sema::CreateParsedType(QualType T, TypeSourceInfo *TInfo) { 31741bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 31751bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 31761bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 3177eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 3178eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor TypeAlignment); 3179a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 31801bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 31811bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 3182b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return ParsedType::make(QualType(LocT, 0)); 31831bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 31841bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 31851bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 31861bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 3187b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("LocInfoType leaked into the type system; an opaque TypeTy*" 318835d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 318935d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 31901bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 31911bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 3192f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallTypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 31935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 31945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 31955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 31961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3197d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S); 3198bf1a028246d884a540aeafa38e89be59a269b072John McCall QualType T = TInfo->getType(); 31995153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 3200809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 32015912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 3202e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall // Make sure there are no unused decl attributes on the declarator. 3203cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // We don't want to do this for ObjC parameters because we're going 3204cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // to apply them to the actual parameter declaration. 3205cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall if (D.getContext() != Declarator::ObjCParameterContext) 3206cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall checkUnusedDeclAttributes(D); 3207e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 32084e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 3209402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 32106d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 3211402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 3212402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 3213b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return CreateParsedType(T, TInfo); 32145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 32155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3216e97179c675b341927807c718be215c8d1aab8acbDouglas GregorParsedType Sema::ActOnObjCInstanceType(SourceLocation Loc) { 3217e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor QualType T = Context.getObjCInstanceType(); 3218e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor TypeSourceInfo *TInfo = Context.getTrivialTypeSourceInfo(T, Loc); 3219e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor return CreateParsedType(T, TInfo); 3220e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor} 3221e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3222e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3223c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3224c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 3225c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3226232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3227232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 3228c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 3229c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 32301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 3231c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 32320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3233232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 323429e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "No type shall be qualified by 323529e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // qualifiers for two or more different address spaces." 3236232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 3237c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 3238e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3239c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3240232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 32411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3242020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "A function type shall not be 3243020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // qualified by an address-space qualifier." 3244020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne if (Type->isFunctionType()) { 3245020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_address_function_type); 3246020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne Attr.setInvalid(); 3247020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne return; 3248020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne } 3249020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne 3250232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 3251545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 3252f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3253e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3254c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3255232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3256545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *ASArgExpr = static_cast<Expr *>(Attr.getArg(0)); 3257232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 3258ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (ASArgExpr->isTypeDependent() || ASArgExpr->isValueDependent() || 3259ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 3260dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_space_not_int) 3261dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner << ASArgExpr->getSourceRange(); 3262e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3263c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3264232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3265232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3266efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 3267efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 3268efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 3269efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 3270efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 3271e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3272efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3273efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3274efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 3275efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3276efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 32770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 3278efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 3279efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 32800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall << Qualifiers::MaxAddressSpace << ASArgExpr->getSourceRange(); 3281e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3282efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3283efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3284efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 32851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 3286f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 3287c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 3288c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 3289d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// Does this type have a "direct" ownership qualifier? That is, 3290d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// is it written like "__strong id", as opposed to something like 3291d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// "typeof(foo)", where that happens to be strong? 3292d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCallstatic bool hasDirectOwnershipQualifier(QualType type) { 3293d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Fast path: no qualifier at all. 3294d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall assert(type.getQualifiers().hasObjCLifetime()); 3295d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3296d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall while (true) { 3297d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // __strong id 3298d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (const AttributedType *attr = dyn_cast<AttributedType>(type)) { 3299d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (attr->getAttrKind() == AttributedType::attr_objc_ownership) 3300d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 3301d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3302d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = attr->getModifiedType(); 3303d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3304d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // X *__strong (...) 3305d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } else if (const ParenType *paren = dyn_cast<ParenType>(type)) { 3306d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = paren->getInnerType(); 3307d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3308d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // That's it for things we want to complain about. In particular, 3309d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // we do not want to look through typedefs, typeof(expr), 3310d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // typeof(type), or any other way that the type is somehow 3311d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // abstracted. 3312d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } else { 3313d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3314d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return false; 3315d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3316d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3317d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall} 3318d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3319b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis/// handleObjCOwnershipTypeAttr - Process an objc_ownership 3320f85e193739c953358c865005855253af4f68a497John McCall/// attribute on the specified type. 3321f85e193739c953358c865005855253af4f68a497John McCall/// 3322f85e193739c953358c865005855253af4f68a497John McCall/// Returns 'true' if the attribute was handled. 3323b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 3324f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, 3325f85e193739c953358c865005855253af4f68a497John McCall QualType &type) { 3326e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis bool NonObjCPointer = false; 3327e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 3328e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (!type->isDependentType()) { 3329e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (const PointerType *ptr = type->getAs<PointerType>()) { 3330e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis QualType pointee = ptr->getPointeeType(); 3331e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (pointee->isObjCRetainableType() || pointee->isPointerType()) 3332e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 3333e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // It is important not to lose the source info that there was an attribute 3334e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // applied to non-objc pointer. We will create an attributed type but 3335e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // its type will be the same as the original type. 3336e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis NonObjCPointer = true; 3337e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } else if (!type->isObjCRetainableType()) { 3338e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 3339e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3340e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3341f85e193739c953358c865005855253af4f68a497John McCall 3342f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 3343440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis SourceLocation AttrLoc = attr.getLoc(); 3344440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isMacroID()) 3345440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis AttrLoc = S.getSourceManager().getImmediateExpansionRange(AttrLoc).first; 3346f85e193739c953358c865005855253af4f68a497John McCall 3347f85e193739c953358c865005855253af4f68a497John McCall if (!attr.getParameterName()) { 3348440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_attribute_argument_n_not_string) 3349b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis << "objc_ownership" << 1; 3350f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3351f85e193739c953358c865005855253af4f68a497John McCall return true; 3352f85e193739c953358c865005855253af4f68a497John McCall } 3353f85e193739c953358c865005855253af4f68a497John McCall 3354d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Consume lifetime attributes without further comment outside of 3355d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // ARC mode. 33564e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().ObjCAutoRefCount) 3357d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 3358d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3359f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime; 3360f85e193739c953358c865005855253af4f68a497John McCall if (attr.getParameterName()->isStr("none")) 3361f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_ExplicitNone; 3362f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("strong")) 3363f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Strong; 3364f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("weak")) 3365f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Weak; 3366f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("autoreleasing")) 3367f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Autoreleasing; 3368f85e193739c953358c865005855253af4f68a497John McCall else { 3369440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::warn_attribute_type_not_supported) 3370b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis << "objc_ownership" << attr.getParameterName(); 3371f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3372f85e193739c953358c865005855253af4f68a497John McCall return true; 3373f85e193739c953358c865005855253af4f68a497John McCall } 3374f85e193739c953358c865005855253af4f68a497John McCall 3375d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall SplitQualType underlyingType = type.split(); 3376d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3377d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Check for redundant/conflicting ownership qualifiers. 3378d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (Qualifiers::ObjCLifetime previousLifetime 3379d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall = type.getQualifiers().getObjCLifetime()) { 3380d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // If it's written directly, that's an error. 3381d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (hasDirectOwnershipQualifier(type)) { 3382d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall S.Diag(AttrLoc, diag::err_attr_objc_ownership_redundant) 3383d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall << type; 3384d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 3385d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3386d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3387d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Otherwise, if the qualifiers actually conflict, pull sugar off 3388d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // until we reach a type that is directly qualified. 3389d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (previousLifetime != lifetime) { 3390d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // This should always terminate: the canonical type is 3391d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // qualified, so some bit of sugar must be hiding it. 3392d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall while (!underlyingType.Quals.hasObjCLifetime()) { 3393d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType = underlyingType.getSingleStepDesugaredType(); 3394d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3395d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType.Quals.removeObjCLifetime(); 3396d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3397d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3398d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3399d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType.Quals.addObjCLifetime(lifetime); 3400f85e193739c953358c865005855253af4f68a497John McCall 3401e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (NonObjCPointer) { 3402e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis StringRef name = attr.getName()->getName(); 3403e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis switch (lifetime) { 3404e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_None: 3405e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: 3406e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis break; 3407e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Strong: name = "__strong"; break; 3408e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Weak: name = "__weak"; break; 3409e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: name = "__autoreleasing"; break; 3410e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3411e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis S.Diag(AttrLoc, diag::warn_objc_object_attribute_wrong_type) 3412e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis << name << type; 3413e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3414e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 3415f85e193739c953358c865005855253af4f68a497John McCall QualType origType = type; 3416e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (!NonObjCPointer) 3417d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = S.Context.getQualifiedType(underlyingType); 3418f85e193739c953358c865005855253af4f68a497John McCall 3419f85e193739c953358c865005855253af4f68a497John McCall // If we have a valid source location for the attribute, use an 3420f85e193739c953358c865005855253af4f68a497John McCall // AttributedType instead. 3421440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isValid()) 3422b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis type = S.Context.getAttributedType(AttributedType::attr_objc_ownership, 3423f85e193739c953358c865005855253af4f68a497John McCall origType, type); 3424f85e193739c953358c865005855253af4f68a497John McCall 34259f084a3166b684573ba49df28fc5792bc37d92e1John McCall // Forbid __weak if the runtime doesn't support it. 3426f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_Weak && 34274e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie !S.getLangOpts().ObjCRuntimeHasWeak && !NonObjCPointer) { 3428f85e193739c953358c865005855253af4f68a497John McCall 3429f85e193739c953358c865005855253af4f68a497John McCall // Actually, delay this until we know what we're parsing. 3430f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 3431f85e193739c953358c865005855253af4f68a497John McCall S.DelayedDiagnostics.add( 3432440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis sema::DelayedDiagnostic::makeForbiddenType( 3433440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.getSourceManager().getExpansionLoc(AttrLoc), 3434f85e193739c953358c865005855253af4f68a497John McCall diag::err_arc_weak_no_runtime, type, /*ignored*/ 0)); 3435f85e193739c953358c865005855253af4f68a497John McCall } else { 3436440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_arc_weak_no_runtime); 3437f85e193739c953358c865005855253af4f68a497John McCall } 3438f85e193739c953358c865005855253af4f68a497John McCall 3439f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3440f85e193739c953358c865005855253af4f68a497John McCall return true; 3441f85e193739c953358c865005855253af4f68a497John McCall } 3442742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 3443742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian // Forbid __weak for class objects marked as 3444742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian // objc_arc_weak_reference_unavailable 3445742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (lifetime == Qualifiers::OCL_Weak) { 3446742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian QualType T = type; 3447742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian while (const PointerType *ptr = T->getAs<PointerType>()) 3448742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian T = ptr->getPointeeType(); 3449742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (const ObjCObjectPointerType *ObjT = T->getAs<ObjCObjectPointerType>()) { 3450742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian ObjCInterfaceDecl *Class = ObjT->getInterfaceDecl(); 34517263feeb367ab55af7e9a6fd701148b1b8264dbaFariborz Jahanian if (Class->isArcWeakrefUnavailable()) { 3452440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_arc_unsupported_weak_class); 3453742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian S.Diag(ObjT->getInterfaceDecl()->getLocation(), 3454742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian diag::note_class_declared); 3455742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 3456742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 3457742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 3458742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 3459f85e193739c953358c865005855253af4f68a497John McCall return true; 3460f85e193739c953358c865005855253af4f68a497John McCall} 3461f85e193739c953358c865005855253af4f68a497John McCall 3462711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// handleObjCGCTypeAttr - Process the __attribute__((objc_gc)) type 3463711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// attribute on the specified type. Returns true to indicate that 3464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// the attribute was handled, false to indicate that the type does 3465711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// not permit the attribute. 3466711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 3467711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 3468711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 3469711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 3470711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3471711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this isn't some kind of pointer. 3472711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!type->isPointerType() && 3473711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isObjCObjectPointerType() && 3474711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isBlockPointerType()) 3475711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3476711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3477711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (type.getObjCGCAttr() != Qualifiers::GCNone) { 3478711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_multiple_objc_gc); 3479711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3480711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3481d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 34821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3483d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 3484711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!attr.getParameterName()) { 3485711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 3486ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian << "objc_gc" << 1; 3487711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3488711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3489ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 34900953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 3491711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 3492711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3493711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3494711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3495d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 3496711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getParameterName()->isStr("weak")) 34970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 3498711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (attr.getParameterName()->isStr("strong")) 34990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 3500d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 3501711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_type_not_supported) 3502711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << "objc_gc" << attr.getParameterName(); 3503711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3504711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3505d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 35061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 350714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall QualType origType = type; 350814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getObjCGCQualType(origType, GCAttr); 350914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 351014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // Make an attributed type to preserve the source information. 351114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (attr.getLoc().isValid()) 351214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getAttributedType(AttributedType::attr_objc_gc, 351314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall origType, type); 351414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 3515711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3516d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 3517d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 3518e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCallnamespace { 3519e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// A helper class to unwrap a type down to a function for the 3520e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// purposes of applying attributes there. 3521e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// 3522e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// Use: 3523e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// FunctionTypeUnwrapper unwrapped(SemaRef, T); 3524e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// if (unwrapped.isFunctionType()) { 3525e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// const FunctionType *fn = unwrapped.get(); 3526e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// // change fn somehow 3527e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// T = unwrapped.wrap(fn); 3528e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// } 3529e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall struct FunctionTypeUnwrapper { 3530e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall enum WrapKind { 3531e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Desugar, 3532e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Parens, 3533e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Pointer, 3534e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall BlockPointer, 3535e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Reference, 3536e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall MemberPointer 3537e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 3538e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3539e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType Original; 3540e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *Fn; 35415f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned char /*WrapKind*/, 8> Stack; 3542e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3543e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionTypeUnwrapper(Sema &S, QualType T) : Original(T) { 3544e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall while (true) { 3545e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *Ty = T.getTypePtr(); 3546e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<FunctionType>(Ty)) { 3547e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = cast<FunctionType>(Ty); 3548e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 3549e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ParenType>(Ty)) { 3550e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ParenType>(Ty)->getInnerType(); 3551e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Parens); 3552e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<PointerType>(Ty)) { 3553e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<PointerType>(Ty)->getPointeeType(); 3554e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Pointer); 3555e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<BlockPointerType>(Ty)) { 3556e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<BlockPointerType>(Ty)->getPointeeType(); 3557e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(BlockPointer); 3558e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<MemberPointerType>(Ty)) { 3559e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<MemberPointerType>(Ty)->getPointeeType(); 3560e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(MemberPointer); 3561e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ReferenceType>(Ty)) { 3562e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ReferenceType>(Ty)->getPointeeType(); 3563e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Reference); 3564e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else { 3565e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *DTy = Ty->getUnqualifiedDesugaredType(); 3566e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (Ty == DTy) { 3567e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = 0; 3568e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 3569e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3570e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3571e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = QualType(DTy, 0); 3572e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Desugar); 3573e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3574e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3575e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3576e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3577e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall bool isFunctionType() const { return (Fn != 0); } 3578e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *get() const { return Fn; } 3579e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3580e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(Sema &S, const FunctionType *New) { 3581e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // If T wasn't modified from the unwrapped type, do nothing. 3582e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (New == get()) return Original; 3583e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3584e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = New; 3585e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(S.Context, Original, 0); 3586e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3587e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3588e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall private: 3589e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, QualType Old, unsigned I) { 3590e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) 3591e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(Fn, Old.getQualifiers()); 3592e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3593e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Build up the inner type, applying the qualifiers from the old 3594e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // type to the new type. 3595e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall SplitQualType SplitOld = Old.split(); 3596e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3597e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // As a special case, tail-recurse if there are no qualifiers. 3598200fa53fd420aa8369586f569dbece04930ad6a3John McCall if (SplitOld.Quals.empty()) 3599200fa53fd420aa8369586f569dbece04930ad6a3John McCall return wrap(C, SplitOld.Ty, I); 3600200fa53fd420aa8369586f569dbece04930ad6a3John McCall return C.getQualifiedType(wrap(C, SplitOld.Ty, I), SplitOld.Quals); 3601e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3602e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3603e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, const Type *Old, unsigned I) { 3604e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) return QualType(Fn, 0); 3605e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3606e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall switch (static_cast<WrapKind>(Stack[I++])) { 3607e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Desugar: 3608e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // This is the point at which we potentially lose source 3609e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // information. 3610e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, Old->getUnqualifiedDesugaredType(), I); 3611e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3612e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Parens: { 3613e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<ParenType>(Old)->getInnerType(), I); 3614e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getParenType(New); 3615e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3616e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3617e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Pointer: { 3618e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<PointerType>(Old)->getPointeeType(), I); 3619e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getPointerType(New); 3620e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3621e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3622e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case BlockPointer: { 3623e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<BlockPointerType>(Old)->getPointeeType(),I); 3624e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getBlockPointerType(New); 3625e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3626e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3627e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case MemberPointer: { 3628e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const MemberPointerType *OldMPT = cast<MemberPointerType>(Old); 3629e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldMPT->getPointeeType(), I); 3630e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getMemberPointerType(New, OldMPT->getClass()); 3631e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3632e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3633e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Reference: { 3634e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const ReferenceType *OldRef = cast<ReferenceType>(Old); 3635e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldRef->getPointeeType(), I); 3636e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<LValueReferenceType>(OldRef)) 3637e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getLValueReferenceType(New, OldRef->isSpelledAsLValue()); 3638e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall else 3639e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getRValueReferenceType(New); 3640e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3641e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3642e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3643e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall llvm_unreachable("unknown wrapping kind"); 3644e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3645e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 3646e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall} 3647e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3648711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Process an individual function attribute. Returns true to 3649711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// indicate that the attribute was handled, false if it wasn't. 3650711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 3651711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 3652711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 3653711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 3654e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3655711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionTypeUnwrapper unwrapped(S, type); 36562455636163fdd18581d7fdae816433f886d88213Mike Stump 3657711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getKind() == AttributeList::AT_noreturn) { 3658711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) 365904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 3660e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3661e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Delay if this is not a function type. 3662711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 3663711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3664425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 3665425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 3666711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withNoReturn(true); 3667711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3668711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3669711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3670425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 3671f85e193739c953358c865005855253af4f68a497John McCall // ns_returns_retained is not always a type attribute, but if we got 3672f85e193739c953358c865005855253af4f68a497John McCall // here, we're treating it as one right now. 3673f85e193739c953358c865005855253af4f68a497John McCall if (attr.getKind() == AttributeList::AT_ns_returns_retained) { 36744e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(S.getLangOpts().ObjCAutoRefCount && 3675f85e193739c953358c865005855253af4f68a497John McCall "ns_returns_retained treated as type attribute in non-ARC"); 3676f85e193739c953358c865005855253af4f68a497John McCall if (attr.getNumArgs()) return true; 3677f85e193739c953358c865005855253af4f68a497John McCall 3678f85e193739c953358c865005855253af4f68a497John McCall // Delay if this is not a function type. 3679f85e193739c953358c865005855253af4f68a497John McCall if (!unwrapped.isFunctionType()) 3680f85e193739c953358c865005855253af4f68a497John McCall return false; 3681f85e193739c953358c865005855253af4f68a497John McCall 3682f85e193739c953358c865005855253af4f68a497John McCall FunctionType::ExtInfo EI 3683f85e193739c953358c865005855253af4f68a497John McCall = unwrapped.get()->getExtInfo().withProducesResult(true); 3684f85e193739c953358c865005855253af4f68a497John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3685f85e193739c953358c865005855253af4f68a497John McCall return true; 3686f85e193739c953358c865005855253af4f68a497John McCall } 3687f85e193739c953358c865005855253af4f68a497John McCall 3688711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getKind() == AttributeList::AT_regparm) { 3689711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned value; 3690711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, value)) 3691711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 36921e030eb1194763b42c1752723be23b1515f48981John McCall 3693711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this is not a function type. 3694711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 3695008df5dce3938456ae7ea2e7ab3b2d12391ebf3eJohn McCall return false; 36961e030eb1194763b42c1752723be23b1515f48981John McCall 3697ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Diagnose regparm with fastcall. 3698ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis const FunctionType *fn = unwrapped.get(); 3699ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis CallingConv CC = fn->getCallConv(); 3700ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis if (CC == CC_X86FastCall) { 3701ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 3702ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC) 3703ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm"; 3704ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 3705ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 3706ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 3707ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 3708e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionType::ExtInfo EI = 3709711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unwrapped.get()->getExtInfo().withRegParm(value); 3710711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3711711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3712425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 3713425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 371404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 3715711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 3716711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 3717711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3718f82b4e85b1219295cad4b5851b035575bc293010John McCall 371904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if the type didn't work out to a function. 3720711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) return false; 372104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 3722711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionType *fn = unwrapped.get(); 3723711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CCOld = fn->getCallConv(); 3724064f7db69def9299f5f4d9a32114afc10b6a6420Charles Davis if (S.Context.getCanonicalCallConv(CC) == 3725e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Context.getCanonicalCallConv(CCOld)) { 3726ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis FunctionType::ExtInfo EI= unwrapped.get()->getExtInfo().withCallingConv(CC); 3727ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3728711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3729e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 373004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 37318e68f1c8a2919ea83c2053731d6011074f1062e1Roman Divacky if (CCOld != (S.LangOpts.MRTD ? CC_X86StdCall : CC_Default)) { 373204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Should we diagnose reapplications of the same convention? 3733711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 373404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC) 373504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CCOld); 3736711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3737711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 373804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 373904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 374004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 374104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 3742711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isa<FunctionNoProtoType>(fn)) { 3743711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_knr) 374404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 3745711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3746711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 374704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 374804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 3749711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(fn); 375004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 3751711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_varargs) 375204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 3753711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3754711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 375504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 3756ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 3757ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Also diagnose fastcall with regparm. 3758a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman if (fn->getHasRegParm()) { 3759ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 3760ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm" 3761ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC); 3762ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 3763ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 3764ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 376504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 3766f82b4e85b1219295cad4b5851b035575bc293010John McCall 3767711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withCallingConv(CC); 3768711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3769711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3770f82b4e85b1219295cad4b5851b035575bc293010John McCall} 3771f82b4e85b1219295cad4b5851b035575bc293010John McCall 3772207f4d8543529221932af82836016a2ef066c917Peter Collingbourne/// Handle OpenCL image access qualifiers: read_only, write_only, read_write 3773207f4d8543529221932af82836016a2ef066c917Peter Collingbournestatic void HandleOpenCLImageAccessAttribute(QualType& CurType, 3774207f4d8543529221932af82836016a2ef066c917Peter Collingbourne const AttributeList &Attr, 3775207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Sema &S) { 3776207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Check the attribute arguments. 3777207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (Attr.getNumArgs() != 1) { 3778207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3779207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3780207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 3781207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3782207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 3783207f4d8543529221932af82836016a2ef066c917Peter Collingbourne llvm::APSInt arg(32); 3784207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 3785207f4d8543529221932af82836016a2ef066c917Peter Collingbourne !sizeExpr->isIntegerConstantExpr(arg, S.Context)) { 3786207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 3787207f4d8543529221932af82836016a2ef066c917Peter Collingbourne << "opencl_image_access" << sizeExpr->getSourceRange(); 3788207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3789207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 3790207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3791207f4d8543529221932af82836016a2ef066c917Peter Collingbourne unsigned iarg = static_cast<unsigned>(arg.getZExtValue()); 3792207f4d8543529221932af82836016a2ef066c917Peter Collingbourne switch (iarg) { 3793207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_only: 3794207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_write_only: 3795207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_write: 3796207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 3797207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 3798207f4d8543529221932af82836016a2ef066c917Peter Collingbourne default: 3799207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 3800207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 3801207f4d8543529221932af82836016a2ef066c917Peter Collingbourne << sizeExpr->getSourceRange(); 3802207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3803207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 3804207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3805207f4d8543529221932af82836016a2ef066c917Peter Collingbourne} 3806207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 38076e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 38086e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 38096e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 38106e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 38116e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 38126e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 38136e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 3814788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, 3815788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Sema &S) { 381656affbcaeff9a01caa70b2a237f7e6ac31c8ded6Bob Wilson // Check the attribute arguments. 38176e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 38186e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3819e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 38206e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 38216e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 38226e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 38236e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 3824ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 3825ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 38266e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 38276e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << "vector_size" << sizeExpr->getSourceRange(); 3828e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 38296e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 38306e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 38316e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the base type must be integer or float, and can't already be a vector. 3832f60946222721d9ba3c059563935c17b84703187aDouglas Gregor if (!CurType->isIntegerType() && !CurType->isRealFloatingType()) { 38336e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 3834e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 38356e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 38366e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 38376e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 38386e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 38396e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 38406e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 38416e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 38426e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 38436e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 38446e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 3845e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 38466e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 38476e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 38486e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 38496e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 38506e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 3851e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 38526e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 38536e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 38546e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 38556e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 38566e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 3857788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, 3858e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::GenericVector); 38596e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 38606e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 38614ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// \brief Process the OpenCL-like ext_vector_type attribute when it occurs on 38624ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// a type. 38634ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregorstatic void HandleExtVectorTypeAttr(QualType &CurType, 38644ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor const AttributeList &Attr, 38654ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Sema &S) { 38664ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Expr *sizeExpr; 38674ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 38684ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Special case where the argument is a template id. 38694ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Attr.getParameterName()) { 38704ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CXXScopeSpec SS; 3871e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 38724ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor UnqualifiedId id; 38734ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 3874e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 3875e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ExprResult Size = S.ActOnIdExpression(S.getCurScope(), SS, TemplateKWLoc, 3876e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara id, false, false); 38774ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 38784ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 38794ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 38804ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 38814ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } else { 38824ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // check the attribute arguments. 38834ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Attr.getNumArgs() != 1) { 38844ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 38854ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 38864ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 38874ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Attr.getArg(0); 38884ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 38894ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 38904ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Create the vector type. 38914ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor QualType T = S.BuildExtVectorType(CurType, sizeExpr, Attr.getLoc()); 38924ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (!T.isNull()) 38934ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CurType = T; 38944ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor} 38954ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 38964211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// HandleNeonVectorTypeAttr - The "neon_vector_type" and 38974211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// "neon_polyvector_type" attributes are used to create vector types that 38984211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// are mangled according to ARM's ABI. Otherwise, these types are identical 38994211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// to those created with the "vector_size" attribute. Unlike "vector_size" 39004211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// the argument to these Neon attributes is the number of vector elements, 39014211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// not the vector size in bytes. The vector width and element type must 39024211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// match one of the standard Neon vector types. 39034211bb68cff1f310be280f66a59520548ef99d8fBob Wilsonstatic void HandleNeonVectorTypeAttr(QualType& CurType, 39044211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const AttributeList &Attr, Sema &S, 39054211bb68cff1f310be280f66a59520548ef99d8fBob Wilson VectorType::VectorKind VecKind, 39064211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const char *AttrName) { 39074211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Check the attribute arguments. 39084211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (Attr.getNumArgs() != 1) { 39094211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 39104211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 39114211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 39124211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 39134211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The number of elements must be an ICE. 39144211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Expr *numEltsExpr = static_cast<Expr *>(Attr.getArg(0)); 39154211bb68cff1f310be280f66a59520548ef99d8fBob Wilson llvm::APSInt numEltsInt(32); 39164211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (numEltsExpr->isTypeDependent() || numEltsExpr->isValueDependent() || 39174211bb68cff1f310be280f66a59520548ef99d8fBob Wilson !numEltsExpr->isIntegerConstantExpr(numEltsInt, S.Context)) { 39184211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 39194211bb68cff1f310be280f66a59520548ef99d8fBob Wilson << AttrName << numEltsExpr->getSourceRange(); 39204211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 39214211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 39224211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 39234211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Only certain element types are supported for Neon vectors. 39244211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const BuiltinType* BTy = CurType->getAs<BuiltinType>(); 39254211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (!BTy || 39264211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (VecKind == VectorType::NeonPolyVector && 39274211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::SChar && 39284211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short) || 39294211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (BTy->getKind() != BuiltinType::SChar && 39304211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UChar && 39314211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short && 39324211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UShort && 39334211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Int && 39344211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UInt && 39354211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::LongLong && 39364211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::ULongLong && 39374211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Float)) { 39384211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) <<CurType; 39394211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 39404211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 39414211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 39424211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The total size of the vector must be 64 or 128 bits. 39434211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 39444211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned numElts = static_cast<unsigned>(numEltsInt.getZExtValue()); 39454211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned vecSize = typeSize * numElts; 39464211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (vecSize != 64 && vecSize != 128) { 39474211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_bad_neon_vector_size) << CurType; 39484211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 39494211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 39504211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 39514211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 39524211bb68cff1f310be280f66a59520548ef99d8fBob Wilson CurType = S.Context.getVectorType(CurType, numElts, VecKind); 39534211bb68cff1f310be280f66a59520548ef99d8fBob Wilson} 39544211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 3955711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, QualType &type, 3956711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool isDeclSpec, AttributeList *attrs) { 3957c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 3958c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 3959c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 3960c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 3961711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3962711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 3963711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 3964711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr = *attrs; 3965711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr.getNext(); 3966711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3967e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Skip attributes that were marked to be invalid. 3968711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 3969e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara continue; 3970e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 3971b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 3972b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 3973711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 3974c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner default: break; 397504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 3976682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth case AttributeList::AT_may_alias: 3977682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // FIXME: This attribute needs to actually be handled, but if we ignore 3978682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // it it breaks large amounts of Linux software. 3979682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth attr.setUsedAsTypeAttr(); 3980682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth break; 3981c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner case AttributeList::AT_address_space: 3982711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleAddressSpaceTypeAttribute(type, attr, state.getSema()); 3983e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 3984c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 3985711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 3986711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!handleObjCPointerTypeAttr(state, attr, type)) 3987711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttr(state, attr, type); 3988e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 3989d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 399004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_vector_size: 3991711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleVectorSizeAttr(type, attr, state.getSema()); 3992e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 3993f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 39944ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor case AttributeList::AT_ext_vector_type: 39954ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (state.getDeclarator().getDeclSpec().getStorageClassSpec() 39964ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor != DeclSpec::SCS_typedef) 39974ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor HandleExtVectorTypeAttr(type, attr, state.getSema()); 3998e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 39994ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor break; 40004211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 4001711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 4002711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonVector, "neon_vector_type"); 4003e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 40044211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 40054211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 4006711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 4007711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonPolyVector, 40084211bb68cff1f310be280f66a59520548ef99d8fBob Wilson "neon_polyvector_type"); 4009e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 40104211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 4011207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case AttributeList::AT_opencl_image_access: 4012207f4d8543529221932af82836016a2ef066c917Peter Collingbourne HandleOpenCLImageAccessAttribute(type, attr, state.getSema()); 4013e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4014207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 4015207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 4016f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_ns_returns_retained: 40174e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!state.getSema().getLangOpts().ObjCAutoRefCount) 4018f85e193739c953358c865005855253af4f68a497John McCall break; 4019f85e193739c953358c865005855253af4f68a497John McCall // fallthrough into the function attrs 4020f85e193739c953358c865005855253af4f68a497John McCall 4021711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 4022e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4023e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 4024711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Never process function type attributes as part of the 4025711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // declaration-specifiers. 4026711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isDeclSpec) 4027711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclSpec(state, attr, type); 4028711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4029711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, handle the possible delays. 4030711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (!handleFunctionTypeAttr(state, attr, type)) 4031711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttr(state, attr, type); 40326e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 4033c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 4034711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attrs = next)); 4035232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 4036232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 4037e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \brief Ensure that the type of the given expression is complete. 4038e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4039e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// This routine checks whether the expression \p E has a complete type. If the 4040e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// expression refers to an instantiable construct, that instantiation is 4041e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// performed as needed to complete its type. Furthermore 4042e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// Sema::RequireCompleteType is called for the expression's type (or in the 4043e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// case of a reference type, the referred-to type). 4044e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4045e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \param E The expression whose type is required to be complete. 4046e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \param PD The partial diagnostic that will be printed out if the type cannot 4047e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// be completed. 4048e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4049e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \returns \c true if the type of \p E is incomplete and diagnosed, \c false 4050e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// otherwise. 4051e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruthbool Sema::RequireCompleteExprType(Expr *E, const PartialDiagnostic &PD, 4052e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth std::pair<SourceLocation, 4053e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth PartialDiagnostic> Note) { 4054e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth QualType T = E->getType(); 4055e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4056e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Fast path the case where the type is already complete. 4057e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (!T->isIncompleteType()) 4058e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth return false; 4059e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4060e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Incomplete array types may be completed by the initializer attached to 4061e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // their definitions. For static data members of class templates we need to 4062e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // instantiate the definition to get this initializer and complete the type. 4063e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (T->isIncompleteArrayType()) { 4064e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 4065e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 4066e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (Var->isStaticDataMember() && 4067e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth Var->getInstantiatedFromStaticDataMember()) { 406836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 406936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MemberSpecializationInfo *MSInfo = Var->getMemberSpecializationInfo(); 407036f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor assert(MSInfo && "Missing member specialization information?"); 407136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getTemplateSpecializationKind() 407236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor != TSK_ExplicitSpecialization) { 407336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // If we don't already have a point of instantiation, this is it. 407436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getPointOfInstantiation().isInvalid()) { 407536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MSInfo->setPointOfInstantiation(E->getLocStart()); 407636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 407736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // This is a modification of an existing AST node. Notify 407836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // listeners. 407936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (ASTMutationListener *L = getASTMutationListener()) 408036f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor L->StaticDataMemberInstantiated(Var); 408136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 408236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 408336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor InstantiateStaticDataMemberDefinition(E->getExprLoc(), Var); 408436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor 408536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // Update the type to the newly instantiated definition's type both 408636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // here and within the expression. 408736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (VarDecl *Def = Var->getDefinition()) { 408836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setDecl(Def); 408936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor T = Def->getType(); 409036f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setType(T); 409136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor E->setType(T); 409236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 4093f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor } 4094f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor 4095e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // We still go on to try to complete the type independently, as it 4096e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // may also require instantiations or diagnostics if it remains 4097e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // incomplete. 4098e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4099e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4100e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4101e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4102e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4103e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // FIXME: Are there other cases which require instantiating something other 4104e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // than the type to complete the type of an expression? 4105e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4106e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Look through reference types and complete the referred type. 4107e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (const ReferenceType *Ref = T->getAs<ReferenceType>()) 4108e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth T = Ref->getPointeeType(); 4109e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4110e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth return RequireCompleteType(E->getExprLoc(), T, PD, Note); 4111e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth} 4112e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 41131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 41144ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 41154ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 41164ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 411786447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 411886447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 411986447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 412086447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 412186447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 41224ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 41234ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 41244ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 41254ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 41264ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 41274ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 41281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @param PD The partial diagnostic that will be printed out if T is not a 4129b790661a15d93941d2c33a0ea328254277b3d7e3Anders Carlsson/// complete type. 41304ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 41314ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 41324ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 413391a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 41348c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson const PartialDiagnostic &PD, 41358c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson std::pair<SourceLocation, 41368c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson PartialDiagnostic> Note) { 413791a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson unsigned diag = PD.getDiagID(); 41381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4139573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 4140573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 4141690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 4142690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 4143690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 41441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 4145690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 4146690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 41474ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 4148d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor NamedDecl *Def = 0; 4149d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor if (!T->isIncompleteType(&Def)) { 4150d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // If we know about the definition but it is not visible, complain. 4151d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor if (diag != 0 && Def && !LookupResult::isVisible(Def)) { 4152d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // Suppress this error outside of a SFINAE context if we've already 4153d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // emitted the error once for this type. There's no usefulness in 4154d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // repeating the diagnostic. 4155d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // FIXME: Add a Fix-It that imports the corresponding module or includes 4156d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // the header. 4157d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor if (isSFINAEContext() || HiddenDefinitions.insert(Def)) { 4158d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor Diag(Loc, diag::err_module_private_definition) << T; 4159d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor Diag(Def->getLocation(), diag::note_previous_definition); 4160d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 4161d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 4162d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor 41634ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 4164d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 41654ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 4166bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const TagType *Tag = T->getAs<TagType>(); 4167bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const ObjCInterfaceType *IFace = 0; 4168bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 4169bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag) { 4170bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 4171bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->isInvalidDecl()) 4172bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 4173bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 4174bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 4175bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->hasExternalLexicalStorage()) { 4176bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(Tag->getDecl()); 4177bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!Tag->isIncompleteType()) 4178bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 4179bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4180bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4181bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan else if ((IFace = T->getAs<ObjCInterfaceType>())) { 4182bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 4183bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->isInvalidDecl()) 4184bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 4185bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 4186bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 4187bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->hasExternalLexicalStorage()) { 4188bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(IFace->getDecl()); 4189bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!IFace->isIncompleteType()) 4190bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 4191bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4192bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4193bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 4194d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 4195923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 4196923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 4197923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 4198e656b8397f05fd1b7c4a735372f79a52f4e32be5Douglas Gregor while (const ConstantArrayType *Array 4199e656b8397f05fd1b7c4a735372f79a52f4e32be5Douglas Gregor = Context.getAsConstantArrayType(MaybeTemplate)) 4200923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 4201923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 42022943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 4203d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 4204972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 4205972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 4206d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 42075842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor /*Complain=*/diag != 0); 42081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 4209d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 4210564f4c5664f552becbd05407611a92754c40e641Richard Smith CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass(); 4211564f4c5664f552becbd05407611a92754c40e641Richard Smith if (!Rec->isBeingDefined() && Pattern) { 4212564f4c5664f552becbd05407611a92754c40e641Richard Smith MemberSpecializationInfo *MSI = Rec->getMemberSpecializationInfo(); 4213564f4c5664f552becbd05407611a92754c40e641Richard Smith assert(MSI && "Missing member specialization information?"); 4214357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 4215564f4c5664f552becbd05407611a92754c40e641Richard Smith if (MSI->getTemplateSpecializationKind() != TSK_ExplicitSpecialization) 4216f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 4217f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 4218f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 4219f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor /*Complain=*/diag != 0); 4220d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 4221d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 4222d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 42232943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 42245842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor if (diag == 0) 42255842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 4226b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 42274ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 422891a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson Diag(Loc, PD) << T; 4229b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 42308c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson // If we have a note, produce it. 42318c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson if (!Note.first.isInvalid()) 42328c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson Diag(Note.first, Note.second); 42338c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson 42344ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 423501620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 42364ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 42371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 42384ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 42394ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 4240b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor << QualType(Tag, 0); 4241b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor 4242b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // If the Objective-C class was a forward declaration, produce a note. 4243b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (IFace && !IFace->getDecl()->isInvalidDecl()) 4244b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor Diag(IFace->getDecl()->getLocation(), diag::note_forward_class); 42454ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 42464ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 42474ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 4248e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 4249fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 4250fe6b2d481d91140923f4541f273b253291884214Douglas Gregor const PartialDiagnostic &PD) { 4251fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PD, 4252fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 4253fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 4254fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 4255fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 4256fe6b2d481d91140923f4541f273b253291884214Douglas Gregor unsigned DiagID) { 4257fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PDiag(DiagID), 4258fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 4259fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 4260fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 42619f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @brief Ensure that the type T is a literal type. 42629f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 42639f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// This routine checks whether the type @p T is a literal type. If @p T is an 42649f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// incomplete type, an attempt is made to complete it. If @p T is a literal 42659f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// type, or @p AllowIncompleteType is true and @p T is an incomplete type, 42669f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// returns false. Otherwise, this routine issues the diagnostic @p PD (giving 42679f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// it the type @p T), along with notes explaining why the type is not a 42689f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// literal type, and returns true. 42699f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 42709f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param Loc The location in the source that the non-literal type 42719f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// diagnostic should refer to. 42729f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 42739f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param T The type that this routine is examining for literalness. 42749f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 42759f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param PD The partial diagnostic that will be printed out if T is not a 42769f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// literal type. 42779f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 42789f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @returns @c true if @p T is not a literal type and a diagnostic was emitted, 42799f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @c false otherwise. 42809f569cca2a4c5fb6026005434e27025b9e71309dRichard Smithbool Sema::RequireLiteralType(SourceLocation Loc, QualType T, 428186c3ae46250cdcc57778c27826060779a92f3815Richard Smith const PartialDiagnostic &PD) { 42829f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(!T->isDependentType() && "type should not be dependent"); 42839f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 4284ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman QualType ElemType = Context.getBaseElementType(T); 4285ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman RequireCompleteType(Loc, ElemType, 0); 4286ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman 428786c3ae46250cdcc57778c27826060779a92f3815Richard Smith if (T->isLiteralType()) 42889f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return false; 42899f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42909f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (PD.getDiagID() == 0) 42919f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 42929f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42939f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(Loc, PD) << T; 42949f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 42959f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (T->isVariableArrayType()) 42969f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 42979f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 4298ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman const RecordType *RT = ElemType->getAs<RecordType>(); 42999f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!RT) 43009f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 43019f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 43029f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith const CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl()); 43039f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 4304c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // A partially-defined class type can't be a literal type, because a literal 4305c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // class type must have a trivial destructor (which can't be checked until 4306c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // the class definition is complete). 4307c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith if (!RD->isCompleteDefinition()) { 4308c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith RequireCompleteType(Loc, ElemType, 4309c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith PDiag(diag::note_non_literal_incomplete) << T); 4310ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman return true; 4311c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith } 4312ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman 43139f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If the class has virtual base classes, then it's not an aggregate, and 431486c3ae46250cdcc57778c27826060779a92f3815Richard Smith // cannot have any constexpr constructors or a trivial default constructor, 431586c3ae46250cdcc57778c27826060779a92f3815Richard Smith // so is non-literal. This is better to diagnose than the resulting absence 431686c3ae46250cdcc57778c27826060779a92f3815Richard Smith // of constexpr constructors. 43179f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (RD->getNumVBases()) { 43189f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_virtual_base) 43199f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith << RD->isStruct() << RD->getNumVBases(); 43209f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->vbases_begin(), 43219f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->vbases_end(); I != E; ++I) 432296a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar Diag(I->getLocStart(), 43239f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_constexpr_virtual_base_here) << I->getSourceRange(); 432486c3ae46250cdcc57778c27826060779a92f3815Richard Smith } else if (!RD->isAggregate() && !RD->hasConstexprNonCopyMoveConstructor() && 432586c3ae46250cdcc57778c27826060779a92f3815Richard Smith !RD->hasTrivialDefaultConstructor()) { 43269f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_no_constexpr_ctors) << RD; 43279f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (RD->hasNonLiteralTypeFieldsOrBases()) { 43289f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->bases_begin(), 43299f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->bases_end(); I != E; ++I) { 43309f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!I->getType()->isLiteralType()) { 433196a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar Diag(I->getLocStart(), 43329f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_base_class) 43339f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith << RD << I->getType() << I->getSourceRange(); 43349f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 43359f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 43369f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 43379f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::field_iterator I = RD->field_begin(), 43389f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->field_end(); I != E; ++I) { 4339262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie if (!I->getType()->isLiteralType() || 4340262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie I->getType().isVolatileQualified()) { 4341262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie Diag(I->getLocation(), diag::note_non_literal_field) 4342262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie << RD << &*I << I->getType() 4343262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie << I->getType().isVolatileQualified(); 43449f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 43459f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 43469f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 43479f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (!RD->hasTrivialDestructor()) { 43489f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // All fields and bases are of literal types, so have trivial destructors. 43499f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If this class's destructor is non-trivial it must be user-declared. 43509f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith CXXDestructorDecl *Dtor = RD->getDestructor(); 43519f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(Dtor && "class has literal fields and bases but no dtor?"); 43529f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!Dtor) 43539f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 43549f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 43559f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(Dtor->getLocation(), Dtor->isUserProvided() ? 43569f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_user_provided_dtor : 43579f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_nontrivial_dtor) << RD; 43589f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 43599f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 43609f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 43619f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith} 43629f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 4363465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Retrieve a version of the type 'T' that is elaborated by Keyword 4364465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// and qualified by the nested-name-specifier contained in SS. 4365465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraQualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, 4366465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara const CXXScopeSpec &SS, QualType T) { 4367465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (T.isNull()) 4368e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 4369465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS; 4370e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (SS.isValid()) 4371465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 4372465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara else { 4373465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (Keyword == ETK_None) 4374465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T; 4375465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = 0; 4376465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 4377465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return Context.getElaboratedType(Keyword, NNS, T); 4378e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 4379af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 43802a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildTypeofExprType(Expr *E, SourceLocation Loc) { 4381fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 43822a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 43832a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 43842a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 43852b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian if (!E->isTypeDependent()) { 43862b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian QualType T = E->getType(); 4387aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian if (const TagType *TT = T->getAs<TagType>()) 4388aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian DiagnoseUseOfDecl(TT->getDecl(), E->getExprLoc()); 43892b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian } 4390af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 4391af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 4392af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 4393f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// getDecltypeForExpr - Given an expr, will return the decltype for 4394f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// that expression, according to the rules in C++11 4395f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// [dcl.type.simple]p4 and C++11 [expr.lambda.prim]p18. 4396f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregorstatic QualType getDecltypeForExpr(Sema &S, Expr *E) { 4397f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (E->isTypeDependent()) 4398f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return S.Context.DependentTy; 4399f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 44006d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // C++11 [dcl.type.simple]p4: 44016d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // The type denoted by decltype(e) is defined as follows: 44026d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // 44036d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - if e is an unparenthesized id-expression or an unparenthesized class 44046d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // member access (5.2.5), decltype(e) is the type of the entity named 44056d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // by e. If there is no such entity, or if e names a set of overloaded 44066d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // functions, the program is ill-formed; 4407f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) { 4408f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 4409f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return VD->getType(); 4410f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 4411f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const MemberExpr *ME = dyn_cast<MemberExpr>(E)) { 4412f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 4413f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return FD->getType(); 4414f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 44156d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor 4416f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // C++11 [expr.lambda.prim]p18: 4417f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // Every occurrence of decltype((x)) where x is a possibly 4418f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // parenthesized id-expression that names an entity of automatic 4419f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // storage duration is treated as if x were transformed into an 4420f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // access to a corresponding data member of the closure type that 4421f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // would have been declared if x were an odr-use of the denoted 4422f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // entity. 4423f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor using namespace sema; 4424f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (S.getCurLambda()) { 4425f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (isa<ParenExpr>(E)) { 4426f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 4427f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 442868932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor QualType T = S.getCapturedDeclRefType(Var, DRE->getLocation()); 442968932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor if (!T.isNull()) 443068932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor return S.Context.getLValueReferenceType(T); 4431f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 4432f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 4433f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 4434f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 4435f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 4436f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 44376d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // C++11 [dcl.type.simple]p4: 44386d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // [...] 44396d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor QualType T = E->getType(); 44406d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor switch (E->getValueKind()) { 44416d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - otherwise, if e is an xvalue, decltype(e) is T&&, where T is the 44426d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // type of e; 44436d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_XValue: T = S.Context.getRValueReferenceType(T); break; 44446d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - otherwise, if e is an lvalue, decltype(e) is T&, where T is the 44456d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // type of e; 44466d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_LValue: T = S.Context.getLValueReferenceType(T); break; 44476d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - otherwise, decltype(e) is the type of e. 44486d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_RValue: break; 44496d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor } 44506d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor 4451f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return T; 4452f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor} 4453f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 44542a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildDecltypeType(Expr *E, SourceLocation Loc) { 4455fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 44562a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 44572a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 44584b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 4459f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return Context.getDecltypeType(E, getDecltypeForExpr(*this, E)); 4460af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 4461ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 4462ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean HuntQualType Sema::BuildUnaryTransformType(QualType BaseType, 4463ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::UTTKind UKind, 4464ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt SourceLocation Loc) { 4465ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt switch (UKind) { 4466ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case UnaryTransformType::EnumUnderlyingType: 4467ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType() && !BaseType->isEnumeralType()) { 4468ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Diag(Loc, diag::err_only_enums_have_underlying_types); 4469ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return QualType(); 4470ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } else { 4471ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType Underlying = BaseType; 4472ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType()) { 4473ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt EnumDecl *ED = BaseType->getAs<EnumType>()->getDecl(); 4474ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(ED && "EnumType has no EnumDecl"); 4475ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DiagnoseUseOfDecl(ED, Loc); 4476ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Underlying = ED->getIntegerType(); 4477ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4478ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(!Underlying.isNull()); 4479ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return Context.getUnaryTransformType(BaseType, Underlying, 4480ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType); 4481ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4482ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4483ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt llvm_unreachable("unknown unary transform type"); 4484ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt} 4485b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4486b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli FriedmanQualType Sema::BuildAtomicType(QualType T, SourceLocation Loc) { 4487b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (!T->isDependentType()) { 44888327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith // FIXME: It isn't entirely clear whether incomplete atomic types 44898327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith // are allowed or not; for simplicity, ban them for the moment. 44908327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith if (RequireCompleteType(Loc, T, 44918327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith PDiag(diag::err_atomic_specifier_bad_type) << 0)) 44928327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith return QualType(); 44938327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith 4494b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman int DisallowedKind = -1; 44958327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith if (T->isArrayType()) 4496b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 1; 4497b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isFunctionType()) 4498b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 2; 4499b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isReferenceType()) 4500b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 3; 4501b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isAtomicType()) 4502b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 4; 4503b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T.hasQualifiers()) 4504b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 5; 4505b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (!T.isTriviallyCopyableType(Context)) 4506b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Some other non-trivially-copyable type (probably a C++ class) 4507b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 6; 4508b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4509b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (DisallowedKind != -1) { 4510b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Diag(Loc, diag::err_atomic_specifier_bad_type) << DisallowedKind << T; 4511b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return QualType(); 4512b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 4513b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4514b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // FIXME: Do we need any handling for ARC here? 4515b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 4516b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4517b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Build the pointer type. 4518b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return Context.getAtomicType(T); 4519b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman} 4520