SemaType.cpp revision 6666ed4ed2e2bc13da5ac5d0a4947019137d45be
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 3891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier/// 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; 4391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 445db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 0) 45a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^{ ... } 4691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 475db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 1 && 485db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner D.getTypeObject(0).Kind == DeclaratorChunk::Function) 49a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^(int X, float Y) { ... } 5091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 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()) { 628e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCGC: 632792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall diagID = diag::warn_pointer_attribute_wrong_type; 64108f756bebd991eaa980cfb9994353612a2e5ff6Chandler Carruth useExpansionLoc = true; 652792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall break; 662792fa5115c5de7cbe11d99d23663c569bfb4caeJohn McCall 678e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCOwnership: 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 \ 968e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCGC: \ 978e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCOwnership 98711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 99711c52bb20d0c69063b52a99826fb7d2835501f1John McCall// Function type attributes. 100711c52bb20d0c69063b52a99826fb7d2835501f1John McCall#define FUNCTION_TYPE_ATTRS_CASELIST \ 1018e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NoReturn: \ 1028e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CDecl: \ 1038e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_FastCall: \ 1048e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_StdCall: \ 1058e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ThisCall: \ 1068e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Pascal: \ 1078e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Regparm: \ 1088e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt 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) { 2878e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_ObjCGC) 288f85e193739c953358c865005855253af4f68a497John McCall return handleObjCGCTypeAttr(state, attr, type); 2898e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt assert(attr.getKind() == AttributeList::AT_ObjCOwnership); 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 } 41591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 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 5088e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsRetained: 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, 557b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith /*variadic*/ false, 558b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith /*ambiguous*/ false, SourceLocation(), 559711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*args*/ 0, 0, 560711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*type quals*/ 0, 56183f51722ed2b8134810cb178f39e44da811de7cdDouglas Gregor /*ref-qualifier*/true, SourceLocation(), 56243f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor /*const qualifier*/SourceLocation(), 56343f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor /*volatile qualifier*/SourceLocation(), 56490ebed0734fac9b464c9bdff53fbf85a86b27f32Douglas Gregor /*mutable qualifier*/SourceLocation(), 565a058fd4f0a944174295f77169b438510dad389f8Richard Smith /*EH*/ EST_None, SourceLocation(), 0, 0, 0, 0, 566711c52bb20d0c69063b52a99826fb7d2835501f1John McCall /*parens*/ loc, loc, 567711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator)); 568711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 569711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // For consistency, make sure the state still has us as processing 570711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // the decl spec. 571711c52bb20d0c69063b52a99826fb7d2835501f1John McCall assert(state.getCurrentChunkIndex() == declarator.getNumTypeObjects() - 1); 572711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(declarator.getNumTypeObjects()); 57304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 57404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 575930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// \brief Convert the specified declspec to the appropriate type 576930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// object. 5771dfbd92c83699820bfaa352e83083124e34fc9dcJames Dennett/// \param state Specifies the declarator containing the declaration specifier 5781dfbd92c83699820bfaa352e83083124e34fc9dcJames Dennett/// to be converted, along with other associated processing state. 5795153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// \returns The type described by the declaration specifiers. This function 5805153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// never returns null. 5818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType ConvertDeclSpecToType(TypeProcessingState &state) { 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: Should move the logic from DeclSpec::Finish to here for validity 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // checking. 584711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 5858cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 586711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Declarator &declarator = state.getDeclarator(); 587711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const DeclSpec &DS = declarator.getDeclSpec(); 588711c52bb20d0c69063b52a99826fb7d2835501f1John McCall SourceLocation DeclLoc = declarator.getIdentifierLoc(); 5895db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (DeclLoc.isInvalid()) 59096a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar DeclLoc = DS.getLocStart(); 59191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 592711c52bb20d0c69063b52a99826fb7d2835501f1John McCall ASTContext &Context = S.Context; 5931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5945db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner QualType Result; 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecType()) { 59696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner case DeclSpec::TST_void: 59796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Result = Context.VoidTy; 59896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner break; 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_char: 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 601fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.CharTy; 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) 603fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.SignedCharTy; 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else { 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Unknown TSS value"); 607fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.UnsignedCharTy; 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 609958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 61064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case DeclSpec::TST_wchar: 61164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 61264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.WCharTy; 61364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) { 614711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 615f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 61664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getSignedWCharType(); 61764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } else { 61864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 61964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis "Unknown TSS value"); 620711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 621f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 62264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getUnsignedWCharType(); 62364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } 62464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 625f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char16: 626f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 627f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 628f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char16Ty; 629f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 630f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char32: 631f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 632f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 633f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char32Ty; 634f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 635d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner case DeclSpec::TST_unspecified: 63662f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner // "<proto1,proto2>" is an objc qualified ID with a missing id. 637097e916b617bb4a069a03764024c310ed42a6424Chris Lattner if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 638c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 639c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**)PQ, 640c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 641c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 64262f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner break; 64362f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner } 64491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 6455db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // If this is a missing declspec in a block literal return context, then it 6465db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // is inferred from the return statements inside the block. 647f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman // The declspec is always missing in a lambda expr context; it is either 648f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman // specified with a trailing return type or inferred. 649f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman if (declarator.getContext() == Declarator::LambdaExprContext || 650f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman isOmittedBlockReturnType(declarator)) { 6515db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner Result = Context.DependentTy; 6525db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 6535db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 6541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 655d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 656d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 657d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 658d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 659d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 660d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 661d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 6624e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().ImplicitInt) { 66335d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 66435d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 6653f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 666711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_declspec) 6673f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 66896a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar << FixItHint::CreateInsertion(DS.getLocStart(), "int"); 6693f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 6704310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 671d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 672d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 673d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 674d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 6754310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor // FIXME: Does Microsoft really have the implicit int extension in C++? 6764e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().CPlusPlus && 6774e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie !S.getLangOpts().MicrosoftExt) { 678711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_missing_type_specifier) 6793f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 6801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 681b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 682b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 683b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 684711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 685b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 686711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::ext_missing_type_specifier) 6873f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 688b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 689d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 6901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 6923cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 695fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 696fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 697fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 698311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 699311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 70091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 701311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 7024e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().C99) 703ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith S.Diag(DS.getTypeSpecWidthLoc(), 7044e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie S.getLangOpts().CPlusPlus0x ? 705ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith diag::warn_cxx98_compat_longlong : diag::ext_longlong); 706311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 710fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 711fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 712fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 713311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 714311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 71591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 716311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 7174e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().C99) 718ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith S.Diag(DS.getTypeSpecWidthLoc(), 7194e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie S.getLangOpts().CPlusPlus0x ? 720ebaf0e6ab743394dda086a01b457838cb6e589a8Richard Smith diag::warn_cxx98_compat_longlong : diag::ext_longlong); 721311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 724958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7253cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 7265a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith case DeclSpec::TST_int128: 7275a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith if (DS.getTypeSpecSign() == DeclSpec::TSS_unsigned) 7285a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith Result = Context.UnsignedInt128Ty; 7295a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith else 7305a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith Result = Context.Int128Ty; 7315a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith break; 732aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov case DeclSpec::TST_half: Result = Context.HalfTy; break; 733fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 734958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 735958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 736fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 737958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 738fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 73939d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne 7404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().OpenCL && !S.getOpenCLOptions().cl_khr_fp64) { 74139d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne S.Diag(DS.getTypeSpecTypeLoc(), diag::err_double_requires_fp64); 74239d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne declarator.setInvalidType(true); 74339d3e7a26c1969fcb76bceb4ee0a410c60ea5954Peter Collingbourne } 744958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 745fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 749711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 7508f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 751711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7528f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 75399dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 7566666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case DeclSpec::TST_struct: 7576666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case DeclSpec::TST_interface: { 758b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeDecl *D = dyn_cast_or_null<TypeDecl>(DS.getRepAsDecl()); 7596e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 7606e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 7616e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 762711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 7636e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 7646e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 7656e24726524c2b51b31bb4b622aa678a46b024f42John McCall 766a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 7670daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara S.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeNameLoc()); 76891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 770a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 77191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 7725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 773a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 7742191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 7750daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara // In both C and C++, make an ElaboratedType. 7760daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara ElaboratedTypeKeyword Keyword 7770daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); 7780daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara Result = S.getElaboratedType(Keyword, DS.getTypeSpecScope(), Result); 779958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 7801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7811a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 7835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 7845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 785711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 78627940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall if (Result.isNull()) 787711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 78827940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall else if (DeclSpec::ProtocolQualifierListTy PQ 78927940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall = DS.getProtocolQualifiers()) { 790c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *ObjT = Result->getAs<ObjCObjectType>()) { 791c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Silently drop any existing protocol qualifiers. 792c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // TODO: determine whether that's the right thing to do. 793c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjT->getNumProtocols()) 794c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = ObjT->getBaseType(); 795c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 796c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getNumProtocolQualifiers()) 797c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Result, 798c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 799c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 800c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCIdType()) { 801ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 802c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 803c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 804c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 805c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 806c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCClassType()) { 8074262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 808c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy, 809c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 810c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 811c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 8123f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 813711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 8143f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 815711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8163f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 817c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 8181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 820958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 8215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 822958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 823e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 824711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.GetTypeFromParser(DS.getRepAsType()); 825958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 826730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (!Result->isDependentType()) 827730e175910936eae49e65caea8b2ba81c67edff7Fariborz Jahanian if (const TagType *TT = Result->getAs<TagType>()) 828711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.DiagnoseUseOfDecl(TT->getDecl(), DS.getTypeSpecTypeLoc()); 829d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 830fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 831958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 832d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 833b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 834d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 835d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 836711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildTypeofExprType(E, DS.getTypeSpecTypeLoc()); 8374b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 8384b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 839711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8404b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 841958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 842d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 8436fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 844b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 8456fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 8466fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 847711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Result = S.BuildDecltypeType(E, DS.getTypeSpecTypeLoc()); 848af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 849af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 850711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 851af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 8526fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 8536fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 854ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case DeclSpec::TST_underlyingType: 855db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt Result = S.GetTypeFromParser(DS.getRepAsType()); 856db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt assert(!Result.isNull() && "Didn't get a type for __underlying_type?"); 857ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = S.BuildUnaryTransformType(Result, 858ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType, 859ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DS.getTypeSpecTypeLoc()); 860ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (Result.isNull()) { 861ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Result = Context.IntTy; 862ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt declarator.setInvalidType(true); 863db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt } 86491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier break; 865db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt 866e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson case DeclSpec::TST_auto: { 867e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 86834b41d939a1328f484511c6002ba2456db879a29Richard Smith Result = Context.getAutoType(QualType()); 869e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 870e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson } 8711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 872a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall case DeclSpec::TST_unknown_anytype: 873a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall Result = Context.UnknownAnyTy; 874a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall break; 875a5fc472b353b88be3b4981da946fb01f5a5cc0c6John McCall 876b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman case DeclSpec::TST_atomic: 877b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.GetTypeFromParser(DS.getRepAsType()); 878b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman assert(!Result.isNull() && "Didn't get a type for _Atomic?"); 879b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = S.BuildAtomicType(Result, DS.getTypeSpecTypeLoc()); 880b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (Result.isNull()) { 881b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Result = Context.IntTy; 882b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman declarator.setInvalidType(true); 883b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 88491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier break; 885b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 886809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 8875153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 888711c52bb20d0c69063b52a99826fb7d2835501f1John McCall declarator.setInvalidType(true); 8895153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 892958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 893f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 8944e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().Freestanding) 895711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 896fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 89782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 89882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 89982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 900e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::VectorKind VecKind = VectorType::AltiVecVector; 901788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner if (DS.isTypeAltiVecPixel()) 902e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecPixel; 903788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner else if (DS.isTypeAltiVecBool()) 904e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VecKind = VectorType::AltiVecBool; 905e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson Result = Context.getVectorType(Result, 128/typeSize, VecKind); 906f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 9071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 90847423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis // FIXME: Imaginary. 90947423bdaa06a3b9c2a859b57c17fc570094dad1cArgyrios Kyrtzidis if (DS.getTypeSpecComplex() == DeclSpec::TSC_imaginary) 910711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getTypeSpecComplexLoc(), diag::err_imaginary_not_supported); 9111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 912711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Before we process any type attributes, synthesize a block literal 913711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // function declarator if necessary. 914711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (declarator.getContext() == Declarator::BlockLiteralContext) 915711c52bb20d0c69063b52a99826fb7d2835501f1John McCall maybeSynthesizeBlockSignature(state, Result); 916711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 917711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any type attributes from the decl spec. This may cause the 918711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // list of type attributes to be temporarily saved while the type 919711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // attributes are pushed around. 920711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = DS.getAttributes().getList()) 921711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, Result, true, attrs); 9221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 92396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 92496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 92596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 92696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Enforce C99 6.7.3p2: "Types other than pointer types derived from object 92796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // or incomplete types shall not be restrict-qualified." C++ also allows 92896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // restrict-qualified references. 9290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_restrict) { 9302b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isAnyPointerType() || Result->isReferenceType()) { 9312b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian QualType EltTy; 9322b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isObjCObjectPointerType()) 9332b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result; 9342b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian else 9352b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result->isPointerType() ? 9362b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<PointerType>()->getPointeeType() : 9372b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<ReferenceType>()->getPointeeType(); 9381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 939bad0e656c3732e3539a9cd6525de721d7e47408bDouglas Gregor // If we have a pointer or reference, the pointee must have an object 940bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner // incomplete type. 941bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner if (!EltTy->isIncompleteOrObjectType()) { 942711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 943d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_invalid_pointee) 944d162584991885ab004a02573a73ce06422b921fcChris Lattner << EltTy << DS.getSourceRange(); 9450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 946bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } 947bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } else { 948711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(DS.getRestrictSpecLoc(), 949711c52bb20d0c69063b52a99826fb7d2835501f1John McCall diag::err_typecheck_invalid_restrict_not_pointer) 950d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 9510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 95296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 95396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 95596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 95696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 95796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 95896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 95996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Get some location to point at, either the C or V location. 96096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner SourceLocation Loc; 9610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 96296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getConstSpecLoc(); 9630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 96496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getVolatileSpecLoc(); 9650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 9660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((TypeQuals & DeclSpec::TQ_restrict) && 9670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Has CVR quals but not C, V, or R?"); 9680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Loc = DS.getRestrictSpecLoc(); 96996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 970711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(Loc, diag::warn_typecheck_function_qualifiers) 971d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 97296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 9731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 974f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 975f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 976f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 977f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 978f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 9791a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 9801a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 981f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 9820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 9830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 9841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 9851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 986bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // C90 6.5.3 constraints: "The same type qualifier shall not appear more 987bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // than once in the same specifier-list or qualifier-list, either directly 988bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // or via one or more typedefs." 98991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (!S.getLangOpts().C99 && !S.getLangOpts().CPlusPlus 990bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman && TypeQuals & Result.getCVRQualifiers()) { 991bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman if (TypeQuals & DeclSpec::TQ_const && Result.isConstQualified()) { 99291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(DS.getConstSpecLoc(), diag::ext_duplicate_declspec) 993bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman << "const"; 994bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 995bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 996bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman if (TypeQuals & DeclSpec::TQ_volatile && Result.isVolatileQualified()) { 99791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(DS.getVolatileSpecLoc(), diag::ext_duplicate_declspec) 998bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman << "volatile"; 999bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1000bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 1001bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // C90 doesn't have restrict, so it doesn't force us to produce a warning 1002bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman // in this case. 1003bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman } 1004bc1029b4a47282cb4ce27c7014acb864b10a4043Eli Friedman 10050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(TypeQuals); 10060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Result = Context.getQualifiedType(Result, Quals); 100796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 10080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1009f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 1010f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 1011f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 1012cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 1013cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 1014cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 10151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1016cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 1017cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1018cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 10192865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 10202865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Qs) { 10212865474261a608c7873b87ba4af110d17907896dJohn McCall // Enforce C99 6.7.3p2: "Types other than pointer types derived from 10222865474261a608c7873b87ba4af110d17907896dJohn McCall // object or incomplete types shall not be restrict-qualified." 10232865474261a608c7873b87ba4af110d17907896dJohn McCall if (Qs.hasRestrict()) { 10242865474261a608c7873b87ba4af110d17907896dJohn McCall unsigned DiagID = 0; 10252865474261a608c7873b87ba4af110d17907896dJohn McCall QualType ProblemTy; 10262865474261a608c7873b87ba4af110d17907896dJohn McCall 10272865474261a608c7873b87ba4af110d17907896dJohn McCall const Type *Ty = T->getCanonicalTypeInternal().getTypePtr(); 10282865474261a608c7873b87ba4af110d17907896dJohn McCall if (const ReferenceType *RTy = dyn_cast<ReferenceType>(Ty)) { 10292865474261a608c7873b87ba4af110d17907896dJohn McCall if (!RTy->getPointeeType()->isIncompleteOrObjectType()) { 10302865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10312865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<ReferenceType>()->getPointeeType(); 10322865474261a608c7873b87ba4af110d17907896dJohn McCall } 10332865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) { 10342865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 10352865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10362865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 10372865474261a608c7873b87ba4af110d17907896dJohn McCall } 10382865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const MemberPointerType *PTy = dyn_cast<MemberPointerType>(Ty)) { 10392865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 10402865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10412865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 104291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } 10432865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (!Ty->isDependentType()) { 10442865474261a608c7873b87ba4af110d17907896dJohn McCall // FIXME: this deserves a proper diagnostic 10452865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 10462865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T; 10472865474261a608c7873b87ba4af110d17907896dJohn McCall } 10482865474261a608c7873b87ba4af110d17907896dJohn McCall 10492865474261a608c7873b87ba4af110d17907896dJohn McCall if (DiagID) { 10502865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(Loc, DiagID) << ProblemTy; 10512865474261a608c7873b87ba4af110d17907896dJohn McCall Qs.removeRestrict(); 10522865474261a608c7873b87ba4af110d17907896dJohn McCall } 10532865474261a608c7873b87ba4af110d17907896dJohn McCall } 10542865474261a608c7873b87ba4af110d17907896dJohn McCall 10552865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getQualifiedType(T, Qs); 10562865474261a608c7873b87ba4af110d17907896dJohn McCall} 10572865474261a608c7873b87ba4af110d17907896dJohn McCall 1058075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara/// \brief Build a paren type including \p T. 1059075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo BagnaraQualType Sema::BuildParenType(QualType T) { 1060075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara return Context.getParenType(T); 1061075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara} 1062075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara 1063f85e193739c953358c865005855253af4f68a497John McCall/// Given that we're building a pointer or reference to the given 1064f85e193739c953358c865005855253af4f68a497John McCallstatic QualType inferARCLifetimeForPointee(Sema &S, QualType type, 1065f85e193739c953358c865005855253af4f68a497John McCall SourceLocation loc, 1066f85e193739c953358c865005855253af4f68a497John McCall bool isReference) { 1067f85e193739c953358c865005855253af4f68a497John McCall // Bail out if retention is unrequired or already specified. 1068f85e193739c953358c865005855253af4f68a497John McCall if (!type->isObjCLifetimeType() || 1069f85e193739c953358c865005855253af4f68a497John McCall type.getObjCLifetime() != Qualifiers::OCL_None) 1070f85e193739c953358c865005855253af4f68a497John McCall return type; 1071f85e193739c953358c865005855253af4f68a497John McCall 1072f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime implicitLifetime = Qualifiers::OCL_None; 1073f85e193739c953358c865005855253af4f68a497John McCall 1074f85e193739c953358c865005855253af4f68a497John McCall // If the object type is const-qualified, we can safely use 1075f85e193739c953358c865005855253af4f68a497John McCall // __unsafe_unretained. This is safe (because there are no read 1076f85e193739c953358c865005855253af4f68a497John McCall // barriers), and it'll be safe to coerce anything but __weak* to 1077f85e193739c953358c865005855253af4f68a497John McCall // the resulting type. 1078f85e193739c953358c865005855253af4f68a497John McCall if (type.isConstQualified()) { 1079f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 1080f85e193739c953358c865005855253af4f68a497John McCall 1081f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, check whether the static type does not require 1082f85e193739c953358c865005855253af4f68a497John McCall // retaining. This currently only triggers for Class (possibly 1083f85e193739c953358c865005855253af4f68a497John McCall // protocol-qualifed, and arrays thereof). 1084f85e193739c953358c865005855253af4f68a497John McCall } else if (type->isObjCARCImplicitlyUnretainedType()) { 1085f85e193739c953358c865005855253af4f68a497John McCall implicitLifetime = Qualifiers::OCL_ExplicitNone; 10865b76f373d23cc3b292ecf523349aaaa388eea375Argyrios Kyrtzidis 1087ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // If we are in an unevaluated context, like sizeof, skip adding a 1088ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // qualification. 108971f55f771794674a410171dbf3cb5dbedf95d033David Blaikie } else if (S.isUnevaluatedContext()) { 1090ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman return type; 1091f85e193739c953358c865005855253af4f68a497John McCall 1092e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // If that failed, give an error and recover using __strong. __strong 1093e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // is the option most likely to prevent spurious second-order diagnostics, 1094e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // like when binding a reference to a field. 1095f85e193739c953358c865005855253af4f68a497John McCall } else { 1096f85e193739c953358c865005855253af4f68a497John McCall // These types can show up in private ivars in system headers, so 1097f85e193739c953358c865005855253af4f68a497John McCall // we need this to not be an error in those cases. Instead we 1098f85e193739c953358c865005855253af4f68a497John McCall // want to delay. 1099f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 1100ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.DelayedDiagnostics.add( 1101ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman sema::DelayedDiagnostic::makeForbiddenType(loc, 1102ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman diag::err_arc_indirect_no_ownership, type, isReference)); 1103f85e193739c953358c865005855253af4f68a497John McCall } else { 1104ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman S.Diag(loc, diag::err_arc_indirect_no_ownership) << type << isReference; 1105f85e193739c953358c865005855253af4f68a497John McCall } 1106e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall implicitLifetime = Qualifiers::OCL_Strong; 1107f85e193739c953358c865005855253af4f68a497John McCall } 1108f85e193739c953358c865005855253af4f68a497John McCall assert(implicitLifetime && "didn't infer any lifetime!"); 1109f85e193739c953358c865005855253af4f68a497John McCall 1110f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 1111f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(implicitLifetime); 1112f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getQualifiedType(type, qs); 1113f85e193739c953358c865005855253af4f68a497John McCall} 1114f85e193739c953358c865005855253af4f68a497John McCall 1115cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 1116cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1117cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 1118cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1119cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1120cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 1121cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 1122cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1123cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 1124cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1125cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1126cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 1127cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 11282865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildPointerType(QualType T, 1129cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 1130cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 1131cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 1132cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 1133ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1134cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1135cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1136cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1137c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); 113892e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 1139f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build pointers to unqualified pointers. 11404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1141f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ false); 1142f85e193739c953358c865005855253af4f68a497John McCall 1143cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 11442865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getPointerType(T); 1145cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1146cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1147cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 1148cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1149cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 1150cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1151cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 1152cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 1153cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 1154cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1155cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 1156cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1157cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1158cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 1159cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 116054e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 11612865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 116254e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 116391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier assert(Context.getCanonicalType(T) != Context.OverloadTy && 11649625e44c0252485277a340746ed8ac950686156fDouglas Gregor "Unresolved overloaded function type"); 116591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 116669d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // C++0x [dcl.ref]p6: 116791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If a typedef (7.1.3), a type template-parameter (14.3.1), or a 116891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // decltype-specifier (7.1.6.2) denotes a type TR that is a reference to a 116991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // type T, an attempt to create the type "lvalue reference to cv TR" creates 117091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // the type "lvalue reference to T", while an attempt to create the type 117169d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // "rvalue reference to cv TR" creates the type TR. 117254e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 117354e14c4db764c0636160d26c5bbf491637c83a76John McCall 117454e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 117554e14c4db764c0636160d26c5bbf491637c83a76John McCall // 117654e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 117754e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 117854e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 117954e14c4db764c0636160d26c5bbf491637c83a76John McCall // 118054e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 118154e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 118254e14c4db764c0636160d26c5bbf491637c83a76John McCall // 118354e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 118454e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 118569d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // collapsing of references-to-references as described in C++0x. 118669d831645f429d3b806d2ae220aee45ca44f8c6cDouglas Gregor // DR 106 and 540 introduce reference-collapsing into C++98/03. 1187cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1188cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 118933a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 1190cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 1191cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 1192cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 1193cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1194cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1195cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1196f85e193739c953358c865005855253af4f68a497John McCall // In ARC, it is forbidden to build references to unqualified pointers. 11974e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) 1198f85e193739c953358c865005855253af4f68a497John McCall T = inferARCLifetimeForPointee(*this, T, Loc, /*reference*/ true); 1199f85e193739c953358c865005855253af4f68a497John McCall 1200cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 12017c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 12022865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getLValueReferenceType(T, SpelledAsLValue); 12032865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getRValueReferenceType(T); 1204cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 1205cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1206e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// Check whether the specified array size makes the array type a VLA. If so, 1207e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner/// return true, if not, return the size of the array in SizeVal. 1208282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smithstatic bool isArraySizeVLA(Sema &S, Expr *ArraySize, llvm::APSInt &SizeVal) { 1209282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // If the size is an ICE, it certainly isn't a VLA. If we're in a GNU mode 1210282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // (like gnu99, but not c99) accept any evaluatable value as an extension. 1211ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor class VLADiagnoser : public Sema::VerifyICEDiagnoser { 1212ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor public: 1213ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor VLADiagnoser() : Sema::VerifyICEDiagnoser(true) {} 121491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1215ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor virtual void diagnoseNotICE(Sema &S, SourceLocation Loc, SourceRange SR) { 1216ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } 121791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1218ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor virtual void diagnoseFold(Sema &S, SourceLocation Loc, SourceRange SR) { 1219ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor S.Diag(Loc, diag::ext_vla_folded_to_constant) << SR; 1220ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } 1221ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor } Diagnoser; 122291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1223ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor return S.VerifyIntegerConstantExpression(ArraySize, &SizeVal, Diagnoser, 1224ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor S.LangOpts.GNUMode).isInvalid(); 1225e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner} 1226e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1227e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner 1228cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 1229cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1230cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 1231cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1232cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 12331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 12341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 1235cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1236efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param Brackets The range from the opening '[' to the closing ']'. 1237cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1238cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 1239cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 1240cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 1241cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 1242cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 1243cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 1244cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 12457e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 12460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 12477e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 12484e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 1249138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 1250138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 125191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // type, the (possibly cv-qualified) type void, a function type or an 1252138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 1253138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 1254bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // C++ [dcl.array]p3: 1255bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // When several "array of" specifications are adjacent, [...] only the 1256bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // first of the constant expressions that specify the bounds of the arrays 1257bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // may be omitted. 1258bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith // 1259138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 1260138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 1261138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 1262138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 1263138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 1264138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 126591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1266bb35151a166db2b4fee043bc90e60858ac2b7a89Richard Smith if (T->isVoidType() || T->isIncompleteArrayType()) { 1267923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 1268923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1269923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 127091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 127191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (RequireNonAbstractType(Brackets.getBegin(), T, 1272138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 1273138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 127491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1275923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 1276138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 1277138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 1278923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 1279923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 1280923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1281923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1282cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1283cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 1284cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 1285ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 1286cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1287cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 12881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 128934b41d939a1328f484511c6002ba2456db879a29Richard Smith if (T->getContainedAutoType()) { 129034b41d939a1328f484511c6002ba2456db879a29Richard Smith Diag(Loc, diag::err_illegal_decl_array_of_auto) 129134b41d939a1328f484511c6002ba2456db879a29Richard Smith << getPrintableNameForEntity(Entity) << T; 1292e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson return QualType(); 1293e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson } 12941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12956217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 1296cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 1297cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 1298cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 1299cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 1300c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (T->isObjCObjectType()) { 1301c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 1302c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 1303cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 13041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1305806054db6653d29cb0d9692df3612cbcd03d0530John McCall // Do placeholder conversions on the array size expression. 1306806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (ArraySize && ArraySize->hasPlaceholderType()) { 1307806054db6653d29cb0d9692df3612cbcd03d0530John McCall ExprResult Result = CheckPlaceholderExpr(ArraySize); 1308806054db6653d29cb0d9692df3612cbcd03d0530John McCall if (Result.isInvalid()) return QualType(); 1309806054db6653d29cb0d9692df3612cbcd03d0530John McCall ArraySize = Result.take(); 1310806054db6653d29cb0d9692df3612cbcd03d0530John McCall } 1311806054db6653d29cb0d9692df3612cbcd03d0530John McCall 13125e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall // Do lvalue-to-rvalue conversions on the array size expression. 1313429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (ArraySize && !ArraySize->isRValue()) { 1314429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ExprResult Result = DefaultLvalueConversion(ArraySize); 1315429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley if (Result.isInvalid()) 1316429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley return QualType(); 1317429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley 1318429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley ArraySize = Result.take(); 1319429bb276991ff2dbc7c5b438828b9b7737cb15ebJohn Wiegley } 13205e3c67b4bd894a926282d24b4d0cbc0e123c9f4aJohn McCall 1321cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 1322282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // C++11 allows contextual conversions to such types. 13234e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus0x && 1324282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith ArraySize && !ArraySize->isTypeDependent() && 13251274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1326cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1327cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 1328cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 1329cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1330282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith 13312767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor llvm::APSInt ConstVal(Context.getTypeSize(Context.getSizeType())); 1332cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 1333f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 13347e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 1335f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 1336f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 1337ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()) { 13387e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 1339282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith } else if ((!T->isDependentType() && !T->isIncompleteType() && 1340282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith !T->isConstantSizeType()) || 1341282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith isArraySizeVLA(*this, ArraySize, ConstVal)) { 1342282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // Even in C++11, don't allow contextual conversions in the array bound 1343282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith // of a VLA. 13444e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus0x && 1345282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith !ArraySize->getType()->isIntegralOrUnscopedEnumerationType()) { 1346282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 1347282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith << ArraySize->getType() << ArraySize->getSourceRange(); 1348282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith return QualType(); 1349282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith } 1350282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith 1351e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with an element type that has a non-constant-size is a VLA. 1352e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // C99: an array with a non-ICE size is a VLA. We accept any expression 1353e1eed38733ed47d44f9d8c7731817c411eaf4141Chris Lattner // that we can fold to a non-zero positive value as an extension. 13547e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 1355cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 1356cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 1357cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 1358923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 1359b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth if (Entity) 1360b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_decl_negative_array_size) 1361b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << getPrintableNameForEntity(Entity) << ArraySize->getSourceRange(); 1362b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth else 1363b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth Diag(ArraySize->getLocStart(), diag::err_typecheck_negative_array_size) 1364b2b5cc0cf908d516a107d373db963f692449a8a8Chandler Carruth << ArraySize->getSourceRange(); 1365923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 1366923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 1367923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 136802024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 136902024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 137091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier Diag(ArraySize->getLocStart(), 137102024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 137202024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 1373923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 137420cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne 137520cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne if (ASM == ArrayType::Static) { 137620cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne Diag(ArraySize->getLocStart(), 137720cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne diag::warn_typecheck_zero_static_array_size) 137820cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne << ArraySize->getSourceRange(); 137920cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne ASM = ArrayType::Normal; 138020cdbeb8f36576f469db195b4140c293c7281718Peter Collingbourne } 138191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } else if (!T->isDependentType() && !T->isVariablyModifiedType() && 13822767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor !T->isIncompleteType()) { 138391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // Is the array too large? 13842767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor unsigned ActiveSizeBits 13852767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor = ConstantArrayType::getNumAddressingBits(Context, T, ConstVal); 13862767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) 13872767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_too_large) 13882767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ConstVal.toString(10) 13892767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ArraySize->getSourceRange(); 13901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 139191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 139246a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 1393cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1394af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 13954e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().C99) { 13960fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor if (T->isVariableArrayType()) { 13970fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Prohibit the use of non-POD types in VLAs. 1398f85e193739c953358c865005855253af4f68a497John McCall QualType BaseT = Context.getBaseElementType(T); 139991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier if (!T->isDependentType() && 1400f85e193739c953358c865005855253af4f68a497John McCall !BaseT.isPODType(Context) && 1401f85e193739c953358c865005855253af4f68a497John McCall !BaseT->isObjCLifetimeType()) { 14020fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::err_vla_non_pod) 1403f85e193739c953358c865005855253af4f68a497John McCall << BaseT; 14040fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor return QualType(); 140591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier } 1406a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor // Prohibit the use of VLAs during template argument deduction. 1407a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor else if (isSFINAEContext()) { 1408a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor Diag(Loc, diag::err_vla_in_sfinae); 1409a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor return QualType(); 1410a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor } 14110fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Just extwarn about VLAs. 14120fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor else 14130fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::ext_vla); 14140fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } else if (ASM != ArrayType::Normal || Quals != 0) 1415d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith Diag(Loc, 14164e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getLangOpts().CPlusPlus? diag::err_c99_array_usage_cxx 1417d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith : diag::ext_c99_array_usage) << ASM; 1418cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1419cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1420cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 1421cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 14229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 14239cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 14249cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 14259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 14269ae2f076ca5ab1feb3ba95629099ec2319833701John McCallQualType Sema::BuildExtVectorType(QualType T, Expr *ArraySize, 14279cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 14289cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 14299cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 14301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 14319cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 14329cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 14339cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 14349cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 14359cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 14369ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isTypeDependent() && !ArraySize->isValueDependent()) { 14379cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 14389ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isIntegerConstantExpr(vecSize, Context)) { 14399cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_argument_not_int) 14409ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << "ext_vector_type" << ArraySize->getSourceRange(); 14419cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 14429cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 14431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 14459cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 14461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 14471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14489cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 14499cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 14509ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << ArraySize->getSourceRange(); 14519cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 14529cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 14531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14544ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return Context.getExtVectorType(T, vectorSize); 14551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 14561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14579ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Context.getDependentSizedExtVectorType(T, ArraySize, AttrLoc); 14589cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 14591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1460724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \brief Build a function type. 1461724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1462724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// This routine checks the function type according to C++ rules and 1463724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// under the assumption that the result type and parameter types have 1464724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// just been instantiated from a template. It therefore duplicates 14652943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor/// some of the behavior of GetTypeForDeclarator, but in a much 1466724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// simpler form that is only suitable for this narrow use case. 1467724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1468724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param T The return type of the function. 1469724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1470724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param ParamTypes The parameter types of the function. This array 1471724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// will be modified to account for adjustments to the types of the 1472724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function parameters. 1473724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1474724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param NumParamTypes The number of parameter types in ParamTypes. 1475724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1476724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Variadic Whether this is a variadic function type. 1477724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1478eefb3d5b49c844347f212073a7e975b8118fe8e9Richard Smith/// \param HasTrailingReturn Whether this function has a trailing return type. 1479eefb3d5b49c844347f212073a7e975b8118fe8e9Richard Smith/// 1480724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the function type. 1481724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1482724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Loc The location of the entity whose type involves this 1483724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function type or, if there is no such entity, the location of the 1484724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type that will have function type. 1485724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1486724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Entity The name of the entity that involves the function 1487724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type, if known. 1488724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 1489724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \returns A suitable function type, if there are no 1490724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// errors. Otherwise, returns a NULL type. 1491724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas GregorQualType Sema::BuildFunctionType(QualType T, 14921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType *ParamTypes, 1493724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor unsigned NumParamTypes, 1494eefb3d5b49c844347f212073a7e975b8118fe8e9Richard Smith bool Variadic, bool HasTrailingReturn, 1495eefb3d5b49c844347f212073a7e975b8118fe8e9Richard Smith unsigned Quals, 1496c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor RefQualifierKind RefQualifier, 1497fa869547eb1cab12d7e0c0dfa8ba594e336b9b32Eli Friedman SourceLocation Loc, DeclarationName Entity, 1498e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionType::ExtInfo Info) { 1499724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 150091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier Diag(Loc, diag::err_func_returning_array_function) 150158408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1502724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1503724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1504aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1505aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Functions cannot return half FP. 1506aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 1507aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 1 << 1508aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1509aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov return QualType(); 1510aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 1511aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 1512724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 1513724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor for (unsigned Idx = 0; Idx < NumParamTypes; ++Idx) { 1514aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: Loc is too inprecise here, should use proper locations for args. 151579e6bd379773447a74cc3e579d9081e4c5cb6d63Douglas Gregor QualType ParamType = Context.getAdjustedParameterType(ParamTypes[Idx]); 15162dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 1517724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 1518724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 1519aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ParamType->isHalfType()) { 1520aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 1521aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Diag(Loc, diag::err_parameters_retval_cannot_have_fp16_type) << 0 << 1522aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov FixItHint::CreateInsertion(Loc, "*"); 1523aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov Invalid = true; 1524724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1525cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 152654e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 1527724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 1528724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1529724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 1530724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 1531724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 1532e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 1533e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = Variadic; 1534eefb3d5b49c844347f212073a7e975b8118fe8e9Richard Smith EPI.HasTrailingReturn = HasTrailingReturn; 1535e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = Quals; 1536c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = RefQualifier; 1537e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.ExtInfo = Info; 1538e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 1539e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall return Context.getFunctionType(T, ParamTypes, NumParamTypes, EPI); 1540724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 15411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1542949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 1543949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1544949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 1545949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 1546949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 1547949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 1548949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 1549949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 1550949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 15511eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 15522865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 1553949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 1554949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 1555949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 1556949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 1557949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 1558949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1559949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 1560949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 1561949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1562949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 1563949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 1564949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 1565949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1566949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1567737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // C++ 8.3.3p3: A pointer to member shall not point to ... a member 1568949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 1569949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 15708d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 1571ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 1572949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1573949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1574949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1575949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 1576949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 1577949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 1578949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1579949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1580949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1581949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 1582949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 1583949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 1584949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 1585949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 1586d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // In the Microsoft ABI, the class is allowed to be an incomplete 1587d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // type. In such cases, the compiler makes a worst-case assumption. 1588d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // We make no such assumption right now, so emit an error if the 1589d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // class isn't a complete type. 1590bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (Context.getTargetInfo().getCXXABI() == CXXABI_Microsoft && 1591d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis RequireCompleteType(Loc, Class, diag::err_incomplete_type)) 1592d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis return QualType(); 1593d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis 15942865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getMemberPointerType(T, Class.getTypePtr()); 1595949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 15961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15979a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 15989a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 15999a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 16009a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 1601efce31f51d6e7e31e125f96c20f6cdab3ead0a47James Dennett/// \param Loc The source location, used for diagnostics. 16029a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 16039a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 16049a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 16059a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 16069a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 16079a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 160891cbbbf506c892a26d4301e2b3ccd377b0938817Chad RosierQualType Sema::BuildBlockPointerType(QualType T, 16091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 16109a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 16110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 16129a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 16139a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 16149a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 16151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16162865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getBlockPointerType(T); 16179a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 16189a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 1619b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallQualType Sema::GetTypeFromParser(ParsedType Ty, TypeSourceInfo **TInfo) { 1620b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = Ty.get(); 16213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 1622a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 16233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 16243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 16253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1626a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 1627f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall if (const LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 1628e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 1629a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 1630e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 16311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1632a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 1633e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 1634e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 1635e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 1636a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 1637a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 1638a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis unsigned chunkIndex); 1639a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis 1640f85e193739c953358c865005855253af4f68a497John McCall/// Given that this is the declaration of a parameter under ARC, 1641f85e193739c953358c865005855253af4f68a497John McCall/// attempt to infer attributes and such for pointer-to-whatever 1642f85e193739c953358c865005855253af4f68a497John McCall/// types. 1643f85e193739c953358c865005855253af4f68a497John McCallstatic void inferARCWriteback(TypeProcessingState &state, 1644f85e193739c953358c865005855253af4f68a497John McCall QualType &declSpecType) { 1645f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 1646f85e193739c953358c865005855253af4f68a497John McCall Declarator &declarator = state.getDeclarator(); 1647f85e193739c953358c865005855253af4f68a497John McCall 1648f85e193739c953358c865005855253af4f68a497John McCall // TODO: should we care about decl qualifiers? 1649f85e193739c953358c865005855253af4f68a497John McCall 1650f85e193739c953358c865005855253af4f68a497John McCall // Check whether the declarator has the expected form. We walk 1651f85e193739c953358c865005855253af4f68a497John McCall // from the inside out in order to make the block logic work. 1652f85e193739c953358c865005855253af4f68a497John McCall unsigned outermostPointerIndex = 0; 1653f85e193739c953358c865005855253af4f68a497John McCall bool isBlockPointer = false; 1654f85e193739c953358c865005855253af4f68a497John McCall unsigned numPointers = 0; 1655f85e193739c953358c865005855253af4f68a497John McCall for (unsigned i = 0, e = declarator.getNumTypeObjects(); i != e; ++i) { 1656f85e193739c953358c865005855253af4f68a497John McCall unsigned chunkIndex = i; 1657f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(chunkIndex); 1658f85e193739c953358c865005855253af4f68a497John McCall switch (chunk.Kind) { 1659f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Paren: 1660f85e193739c953358c865005855253af4f68a497John McCall // Ignore parens. 1661f85e193739c953358c865005855253af4f68a497John McCall break; 1662f85e193739c953358c865005855253af4f68a497John McCall 1663f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Reference: 1664f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Pointer: 1665f85e193739c953358c865005855253af4f68a497John McCall // Count the number of pointers. Treat references 1666f85e193739c953358c865005855253af4f68a497John McCall // interchangeably as pointers; if they're mis-ordered, normal 1667f85e193739c953358c865005855253af4f68a497John McCall // type building will discover that. 1668f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1669f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1670f85e193739c953358c865005855253af4f68a497John McCall break; 1671f85e193739c953358c865005855253af4f68a497John McCall 1672f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::BlockPointer: 1673f85e193739c953358c865005855253af4f68a497John McCall // If we have a pointer to block pointer, that's an acceptable 1674f85e193739c953358c865005855253af4f68a497John McCall // indirect reference; anything else is not an application of 1675f85e193739c953358c865005855253af4f68a497John McCall // the rules. 1676f85e193739c953358c865005855253af4f68a497John McCall if (numPointers != 1) return; 1677f85e193739c953358c865005855253af4f68a497John McCall numPointers++; 1678f85e193739c953358c865005855253af4f68a497John McCall outermostPointerIndex = chunkIndex; 1679f85e193739c953358c865005855253af4f68a497John McCall isBlockPointer = true; 1680f85e193739c953358c865005855253af4f68a497John McCall 1681f85e193739c953358c865005855253af4f68a497John McCall // We don't care about pointer structure in return values here. 1682f85e193739c953358c865005855253af4f68a497John McCall goto done; 1683f85e193739c953358c865005855253af4f68a497John McCall 1684f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Array: // suppress if written (id[])? 1685f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::Function: 1686f85e193739c953358c865005855253af4f68a497John McCall case DeclaratorChunk::MemberPointer: 1687f85e193739c953358c865005855253af4f68a497John McCall return; 1688f85e193739c953358c865005855253af4f68a497John McCall } 1689f85e193739c953358c865005855253af4f68a497John McCall } 1690f85e193739c953358c865005855253af4f68a497John McCall done: 1691f85e193739c953358c865005855253af4f68a497John McCall 1692f85e193739c953358c865005855253af4f68a497John McCall // If we have *one* pointer, then we want to throw the qualifier on 1693f85e193739c953358c865005855253af4f68a497John McCall // the declaration-specifiers, which means that it needs to be a 1694f85e193739c953358c865005855253af4f68a497John McCall // retainable object type. 1695f85e193739c953358c865005855253af4f68a497John McCall if (numPointers == 1) { 1696f85e193739c953358c865005855253af4f68a497John McCall // If it's not a retainable object type, the rule doesn't apply. 1697f85e193739c953358c865005855253af4f68a497John McCall if (!declSpecType->isObjCRetainableType()) return; 1698f85e193739c953358c865005855253af4f68a497John McCall 1699f85e193739c953358c865005855253af4f68a497John McCall // If it already has lifetime, don't do anything. 1700f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType.getObjCLifetime()) return; 1701f85e193739c953358c865005855253af4f68a497John McCall 1702f85e193739c953358c865005855253af4f68a497John McCall // Otherwise, modify the type in-place. 1703f85e193739c953358c865005855253af4f68a497John McCall Qualifiers qs; 170491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1705f85e193739c953358c865005855253af4f68a497John McCall if (declSpecType->isObjCARCImplicitlyUnretainedType()) 1706f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_ExplicitNone); 1707f85e193739c953358c865005855253af4f68a497John McCall else 1708f85e193739c953358c865005855253af4f68a497John McCall qs.addObjCLifetime(Qualifiers::OCL_Autoreleasing); 1709f85e193739c953358c865005855253af4f68a497John McCall declSpecType = S.Context.getQualifiedType(declSpecType, qs); 1710f85e193739c953358c865005855253af4f68a497John McCall 1711f85e193739c953358c865005855253af4f68a497John McCall // If we have *two* pointers, then we want to throw the qualifier on 1712f85e193739c953358c865005855253af4f68a497John McCall // the outermost pointer. 1713f85e193739c953358c865005855253af4f68a497John McCall } else if (numPointers == 2) { 1714f85e193739c953358c865005855253af4f68a497John McCall // If we don't have a block pointer, we need to check whether the 1715f85e193739c953358c865005855253af4f68a497John McCall // declaration-specifiers gave us something that will turn into a 1716f85e193739c953358c865005855253af4f68a497John McCall // retainable object pointer after we slap the first pointer on it. 1717f85e193739c953358c865005855253af4f68a497John McCall if (!isBlockPointer && !declSpecType->isObjCObjectType()) 1718f85e193739c953358c865005855253af4f68a497John McCall return; 1719f85e193739c953358c865005855253af4f68a497John McCall 1720f85e193739c953358c865005855253af4f68a497John McCall // Look for an explicit lifetime attribute there. 1721f85e193739c953358c865005855253af4f68a497John McCall DeclaratorChunk &chunk = declarator.getTypeObject(outermostPointerIndex); 17221c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis if (chunk.Kind != DeclaratorChunk::Pointer && 17231c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis chunk.Kind != DeclaratorChunk::BlockPointer) 17241c73dcbe1f1921bad8311cfb5089d30b4bd75b66Argyrios Kyrtzidis return; 1725f85e193739c953358c865005855253af4f68a497John McCall for (const AttributeList *attr = chunk.getAttrs(); attr; 1726f85e193739c953358c865005855253af4f68a497John McCall attr = attr->getNext()) 17278e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr->getKind() == AttributeList::AT_ObjCOwnership) 1728f85e193739c953358c865005855253af4f68a497John McCall return; 1729f85e193739c953358c865005855253af4f68a497John McCall 1730a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, Qualifiers::OCL_Autoreleasing, 1731a8349f5e60d1b5b0e658195a60d385b56ed440ecArgyrios Kyrtzidis outermostPointerIndex); 1732f85e193739c953358c865005855253af4f68a497John McCall 1733f85e193739c953358c865005855253af4f68a497John McCall // Any other number of pointers/references does not trigger the rule. 1734f85e193739c953358c865005855253af4f68a497John McCall } else return; 1735f85e193739c953358c865005855253af4f68a497John McCall 1736f85e193739c953358c865005855253af4f68a497John McCall // TODO: mark whether we did this inference? 1737f85e193739c953358c865005855253af4f68a497John McCall} 1738f85e193739c953358c865005855253af4f68a497John McCall 1739d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruthstatic void DiagnoseIgnoredQualifiers(unsigned Quals, 1740d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation ConstQualLoc, 1741d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation VolatileQualLoc, 1742d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation RestrictQualLoc, 1743d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth Sema& S) { 1744d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth std::string QualStr; 1745d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth unsigned NumQuals = 0; 1746d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation Loc; 1747d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1748d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint ConstFixIt; 1749d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint VolatileFixIt; 1750d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth FixItHint RestrictFixIt; 1751d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1752a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg const SourceManager &SM = S.getSourceManager(); 1753a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg 1754d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // FIXME: The locations here are set kind of arbitrarily. It'd be nicer to 1755d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // find a range and grow it to encompass all the qualifiers, regardless of 1756d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth // the order in which they textually appear. 1757d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Const) { 1758d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ConstFixIt = FixItHint::CreateRemoval(ConstQualLoc); 1759d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth QualStr = "const"; 1760a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg ++NumQuals; 1761a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(ConstQualLoc, Loc)) 1762a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = ConstQualLoc; 1763d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1764d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Volatile) { 1765d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth VolatileFixIt = FixItHint::CreateRemoval(VolatileQualLoc); 1766a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg QualStr += (NumQuals == 0 ? "volatile" : " volatile"); 1767d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ++NumQuals; 1768a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(VolatileQualLoc, Loc)) 1769a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = VolatileQualLoc; 1770d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1771d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth if (Quals & Qualifiers::Restrict) { 1772d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth RestrictFixIt = FixItHint::CreateRemoval(RestrictQualLoc); 1773a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg QualStr += (NumQuals == 0 ? "restrict" : " restrict"); 1774d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth ++NumQuals; 1775a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg if (!Loc.isValid() || SM.isBeforeInTranslationUnit(RestrictQualLoc, Loc)) 1776a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg Loc = RestrictQualLoc; 1777d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } 1778d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1779d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(NumQuals > 0 && "No known qualifiers?"); 1780d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 1781d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth S.Diag(Loc, diag::warn_qual_return_type) 1782a08fcb8105bf53f3640ad17f61bdcde2d8ace78aHans Wennborg << QualStr << NumQuals << ConstFixIt << VolatileFixIt << RestrictFixIt; 1783d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth} 1784d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 17858cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic QualType GetDeclSpecTypeForDeclarator(TypeProcessingState &state, 17868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *&ReturnTypeInfo) { 17878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &SemaRef = state.getSema(); 17888cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 1789930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 17908cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ReturnTypeInfo = 0; 1791711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 17928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The TagDecl owned by the DeclSpec. 17938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TagDecl *OwnedTagDecl = 0; 17948999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl 17953f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 179698a5403ecf1d2b60ae8cbf43e54194bd762cacaaFariborz Jahanian case UnqualifiedId::IK_ImplicitSelfParam: 17973f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 17988999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl case UnqualifiedId::IK_Identifier: 17990486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 18003f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 18018cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = ConvertDeclSpecToType(state); 180291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 1803591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 1804d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 180515987970eeaa1842c29ec8797affd1c1dea05585Abramo Bagnara // Owned declaration is embedded in declarator. 1806d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis OwnedTagDecl->setEmbeddedInDeclarator(true); 1807591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 1808930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 1809930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 18103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 18110efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 18123f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 1813930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 181491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // "void" instead. 18158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.VoidTy; 1816a78a640c5f59720f2c2b8034eca4fbf8525d9026Rafael Espindola if (AttributeList *attrs = D.getDeclSpec().getAttributes().getList()) 1817a78a640c5f59720f2c2b8034eca4fbf8525d9026Rafael Espindola processTypeAttrs(state, T, true, attrs); 1818930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 181948026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 182048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 182148026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 182248026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 182391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier T = SemaRef.GetTypeFromParser(D.getName().ConversionFunctionId, 18248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis &ReturnTypeInfo); 182548026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 1826930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 1827dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor 1828711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (D.getAttributes()) 1829711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeTypeAttrsFromDeclarator(state, T); 1830711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1831d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.spec.auto]p5: reject 'auto' if it is not in an allowed context. 1832d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // In C++11, a function declarator using 'auto' must have a trailing return 18338110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // type (this is checked later) and we can skip this. In other languages 18348110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // using auto, we need to check regardless. 183534b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 18364e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (!SemaRef.getLangOpts().CPlusPlus0x || !D.isFunctionDeclarator())) { 1837baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 18381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1839baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 1840baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 1841b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("K&R type lists aren't allowed in C++"); 1842f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 1843f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman llvm_unreachable("Can't specify a type specifier in lambda grammar"); 1844cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 1845cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 1846baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 1847baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 0; // Function prototype 1848baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1849baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 18507a614d8380297fcd2bc23986241905d97222948cRichard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static) 18517a614d8380297fcd2bc23986241905d97222948cRichard Smith break; 18528cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (cast<TagDecl>(SemaRef.CurContext)->getTagKind()) { 1853eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27David Blaikie case TTK_Enum: llvm_unreachable("unhandled tag kind"); 1854465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Struct: Error = 1; /* Struct member */ break; 1855465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Union: Error = 2; /* Union member */ break; 1856465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Class: Error = 3; /* Class member */ break; 18576666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case TTK_Interface: Error = 4; /* Interface member */ break; 18581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1859baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1860baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 186117b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 18626666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 5; // Exception declaration 1863baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1864baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 18656666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 6; // Template parameter 1866baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1867baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 18686666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 7; // Block literal 186934b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 187034b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TemplateTypeArgContext: 18716666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 8; // Template type argument 187234b41d939a1328f484511c6002ba2456db879a29Richard Smith break; 1873162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 18743e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 18756666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 10; // Type alias 1876162e1c1b487352434552147967c3dd296ebee2f7Richard Smith break; 18777796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 18786666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 11; // Function return type 18797796eb5643244f3134834253ce5ea89107ac21c1Richard Smith break; 188034b41d939a1328f484511c6002ba2456db879a29Richard Smith case Declarator::TypeNameContext: 18816666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 12; // Generic 1882baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1883baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 1884baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 1885baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 1886baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 18870b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 1888baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1889baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1890baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 1891ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith if (D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 18926666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 9; 1893ddc83f9255834217f0559b09ff75a1c50b8ce457Richard Smith 18948110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith // In Objective-C it is an error to use 'auto' on a function declarator. 18958110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith if (D.isFunctionDeclarator()) 18966666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos Error = 11; 18978110f04b39fd028496dd6bf9e3a78278c3e0a6adRichard Smith 1898d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.spec.auto]p2: 'auto' is always fine if the declarator 1899e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // contains a trailing return type. That is only legal at the outermost 1900e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // level. Check all declarator chunks (outermost first) anyway, to give 1901e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // better diagnostics. 19024e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (SemaRef.getLangOpts().CPlusPlus0x && Error != -1) { 1903e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 1904e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned chunkIndex = e - i - 1; 1905e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith state.setCurrentChunkIndex(chunkIndex); 1906e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 1907e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (DeclType.Kind == DeclaratorChunk::Function) { 1908e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 190954655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith if (FTI.hasTrailingReturnType()) { 1910e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith Error = -1; 1911e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith break; 1912e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1913e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1914e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1915e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 1916e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 1917baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 19188cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 19198cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_auto_not_allowed) 1920baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson << Error; 19218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = SemaRef.Context.IntTy; 1922baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 19230aa86c0463a881be85fd34e04c7de3379997621dRichard Smith } else 19240aa86c0463a881be85fd34e04c7de3379997621dRichard Smith SemaRef.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 19250aa86c0463a881be85fd34e04c7de3379997621dRichard Smith diag::warn_cxx98_compat_auto_type_specifier); 1926baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 19278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 19284e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (SemaRef.getLangOpts().CPlusPlus && 19295e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall OwnedTagDecl && OwnedTagDecl->isCompleteDefinition()) { 19308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Check the contexts where C++ forbids the declaration of a new class 19318cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // or enumeration in a type-specifier-seq. 19328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis switch (D.getContext()) { 19337796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 19347796eb5643244f3134834253ce5ea89107ac21c1Richard Smith // Class and enumeration definitions are syntactically not allowed in 19357796eb5643244f3134834253ce5ea89107ac21c1Richard Smith // trailing return types. 19367796eb5643244f3134834253ce5ea89107ac21c1Richard Smith llvm_unreachable("parser should not have allowed this"); 19377796eb5643244f3134834253ce5ea89107ac21c1Richard Smith break; 19388cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::FileContext: 19398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::MemberContext: 19408cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockContext: 19418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ForContext: 19428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::BlockLiteralContext: 1943f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 1944d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.type]p3: 19458cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // A type-specifier-seq shall not define a class or enumeration unless 19468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // it appears in the type-id of an alias-declaration (7.1.3) that is not 19478cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // the declaration of a template-declaration. 19488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasDeclContext: 19498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::AliasTemplateContext: 19518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 19528cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_alias_template) 19538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 19548cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19558cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TypeNameContext: 19568cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateParamContext: 19578cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXNewContext: 19588cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::CXXCatchContext: 19598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ObjCCatchContext: 19608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::TemplateTypeArgContext: 19618cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 19628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_type_specifier) 19638cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 19648cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19658cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::PrototypeContext: 1966cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: 1967cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: 19688cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::KNRTypeListContext: 19698cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ [dcl.fct]p6: 19708cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Types shall not be defined in return or parameter types. 19718cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 19728cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_param_type) 19738cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis << SemaRef.Context.getTypeDeclType(OwnedTagDecl); 19748cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19758cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis case Declarator::ConditionContext: 19768cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // C++ 6.4p2: 19778cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // The type-specifier-seq shall not contain typedef and shall not declare 19788cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // a new class or enumeration. 19798cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SemaRef.Diag(OwnedTagDecl->getLocation(), 19808cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis diag::err_type_defined_in_condition); 19818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis break; 19828cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 19838cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 19848cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 19858cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return T; 19868cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 19878cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 1988a08c2fb74ef823c185619ecc532f8fced6a1982fBenjamin Kramerstatic std::string getFunctionQualifiersAsString(const FunctionProtoType *FnTy){ 1989d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith std::string Quals = 1990d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Qualifiers::fromCVRMask(FnTy->getTypeQuals()).getAsString(); 1991d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 1992d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith switch (FnTy->getRefQualifier()) { 1993d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_None: 1994d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 1995d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 1996d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_LValue: 1997d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!Quals.empty()) 1998d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += ' '; 1999d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += '&'; 2000d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2001d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2002d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case RQ_RValue: 2003d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!Quals.empty()) 2004d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += ' '; 2005d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Quals += "&&"; 2006d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2007d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 2008d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2009d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return Quals; 2010d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith} 2011d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2012d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// Check that the function type T, which has a cv-qualifier or a ref-qualifier, 2013d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// can be contained within the declarator chunk DeclType, and produce an 2014d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith/// appropriate diagnostic if not. 2015d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smithstatic void checkQualifiedFunction(Sema &S, QualType T, 2016d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DeclaratorChunk &DeclType) { 2017d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++98 [dcl.fct]p4 / C++11 [dcl.fct]p6: a function type with a 2018d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // cv-qualifier or a ref-qualifier can only appear at the topmost level 2019d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // of a type. 2020d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith int DiagKind = -1; 2021d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith switch (DeclType.Kind) { 2022d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Paren: 2023d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::MemberPointer: 2024d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // These cases are permitted. 2025d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return; 2026d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Array: 2027d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Function: 2028d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // These cases don't allow function types at all; no need to diagnose the 2029d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // qualifiers separately. 2030d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith return; 2031d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::BlockPointer: 2032d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 0; 2033d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2034d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Pointer: 2035d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 1; 2036d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2037d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith case DeclaratorChunk::Reference: 2038d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith DiagKind = 2; 2039d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith break; 2040d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 2041d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2042d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith assert(DiagKind != -1); 2043d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith S.Diag(DeclType.Loc, diag::err_compound_qualified_function_type) 2044d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << DiagKind << isa<FunctionType>(T.IgnoreParens()) << T 2045d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << getFunctionQualifiersAsString(T->castAs<FunctionProtoType>()); 2046d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith} 2047d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2048b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith/// Produce an approprioate diagnostic for an ambiguity between a function 2049b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith/// declarator and a C++ direct-initializer. 2050b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smithstatic void warnAboutAmbiguousFunction(Sema &S, Declarator &D, 2051b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith DeclaratorChunk &DeclType, QualType RT) { 2052b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 2053b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith assert(FTI.isAmbiguous && "no direct-initializer / function ambiguity"); 2054b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2055b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // If the return type is void there is no ambiguity. 2056b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RT->isVoidType()) 2057b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2058b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2059b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // An initializer for a non-class type can have at most one argument. 2060b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!RT->isRecordType() && FTI.NumArgs > 1) 2061b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2062b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2063b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // An initializer for a reference must have exactly one argument. 2064b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RT->isReferenceType() && FTI.NumArgs != 1) 2065b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2066b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2067b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Only warn if this declarator is declaring a function at block scope, and 2068b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // doesn't have a storage class (such as 'extern') specified. 2069b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!D.isFunctionDeclarator() || 2070b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith D.getFunctionDefinitionKind() != FDK_Declaration || 2071b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith !S.CurContext->isFunctionOrMethod() || 2072b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith D.getDeclSpec().getStorageClassSpecAsWritten() 2073b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith != DeclSpec::SCS_unspecified) 2074b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2075b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2076b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Inside a condition, a direct initializer is not permitted. We allow one to 2077b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // be parsed in order to give better diagnostics in condition parsing. 2078b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (D.getContext() == Declarator::ConditionContext) 2079b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith return; 2080b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2081b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceRange ParenRange(DeclType.Loc, DeclType.EndLoc); 2082b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2083d64effc4e31044c05d6e4400150edb26e914983aRichard Smith S.Diag(DeclType.Loc, 2084d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FTI.NumArgs ? diag::warn_parens_disambiguated_as_function_declaration 2085d64effc4e31044c05d6e4400150edb26e914983aRichard Smith : diag::warn_empty_parens_are_function_decl) 2086d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << ParenRange; 2087d64effc4e31044c05d6e4400150edb26e914983aRichard Smith 2088d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // If the declaration looks like: 2089d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // T var1, 2090d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // f(); 2091d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // and name lookup finds a function named 'f', then the ',' was 2092d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // probably intended to be a ';'. 2093d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (!D.isFirstDeclarator() && D.getIdentifier()) { 2094d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FullSourceLoc Comma(D.getCommaLoc(), S.SourceMgr); 2095d64effc4e31044c05d6e4400150edb26e914983aRichard Smith FullSourceLoc Name(D.getIdentifierLoc(), S.SourceMgr); 2096d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (Comma.getFileID() != Name.getFileID() || 2097d64effc4e31044c05d6e4400150edb26e914983aRichard Smith Comma.getSpellingLineNumber() != Name.getSpellingLineNumber()) { 2098d64effc4e31044c05d6e4400150edb26e914983aRichard Smith LookupResult Result(S, D.getIdentifier(), SourceLocation(), 2099d64effc4e31044c05d6e4400150edb26e914983aRichard Smith Sema::LookupOrdinaryName); 2100d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (S.LookupName(Result, S.getCurScope())) 2101d64effc4e31044c05d6e4400150edb26e914983aRichard Smith S.Diag(D.getCommaLoc(), diag::note_empty_parens_function_call) 2102d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << FixItHint::CreateReplacement(D.getCommaLoc(), ";") 2103d64effc4e31044c05d6e4400150edb26e914983aRichard Smith << D.getIdentifier(); 2104d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } 2105d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } 2106b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 2107d64effc4e31044c05d6e4400150edb26e914983aRichard Smith if (FTI.NumArgs > 0) { 2108d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // For a declaration with parameters, eg. "T var(T());", suggest adding parens 2109d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // around the first parameter to turn the declaration into a variable 2110d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // declaration. 2111b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceRange Range = FTI.ArgInfo[0].Param->getSourceRange(); 2112b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceLocation B = Range.getBegin(); 2113b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith SourceLocation E = S.PP.getLocForEndOfToken(Range.getEnd()); 2114b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // FIXME: Maybe we should suggest adding braces instead of parens 2115b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // in C++11 for classes that don't have an initializer_list constructor. 2116b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(B, diag::note_additional_parens_for_variable_declaration) 2117b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateInsertion(B, "(") 2118b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateInsertion(E, ")"); 2119d64effc4e31044c05d6e4400150edb26e914983aRichard Smith } else { 2120d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // For a declaration without parameters, eg. "T var();", suggest replacing the 2121d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // parens with an initializer to turn the declaration into a variable 2122d64effc4e31044c05d6e4400150edb26e914983aRichard Smith // declaration. 2123b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith const CXXRecordDecl *RD = RT->getAsCXXRecordDecl(); 2124d64effc4e31044c05d6e4400150edb26e914983aRichard Smith 2125b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // Empty parens mean value-initialization, and no parens mean 2126b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // default initialization. These are equivalent if the default 2127b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // constructor is user-provided or if zero-initialization is a 2128b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // no-op. 2129b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (RD && RD->hasDefinition() && 2130b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith (RD->isEmpty() || RD->hasUserProvidedDefaultConstructor())) 2131b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(DeclType.Loc, diag::note_empty_parens_default_ctor) 2132b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateRemoval(ParenRange); 2133b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith else { 2134b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith std::string Init = S.getFixItZeroInitializerForType(RT); 2135b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (Init.empty() && S.LangOpts.CPlusPlus0x) 2136b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith Init = "{}"; 2137b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (!Init.empty()) 2138b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith S.Diag(DeclType.Loc, diag::note_empty_parens_zero_initialize) 2139b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith << FixItHint::CreateReplacement(ParenRange, Init); 2140b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith } 2141b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith } 2142b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith} 2143b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 21448cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidisstatic TypeSourceInfo *GetFullTypeForDeclarator(TypeProcessingState &state, 21458cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType declSpecType, 21468cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *TInfo) { 21478cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 21488cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = declSpecType; 21498cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Declarator &D = state.getDeclarator(); 21508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis Sema &S = state.getSema(); 21518cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ASTContext &Context = S.Context; 21524e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie const LangOptions &LangOpts = S.getLangOpts(); 21538cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 21548cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis bool ImplicitlyNoexcept = false; 21558cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (D.getName().getKind() == UnqualifiedId::IK_OperatorFunctionId && 21568cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis LangOpts.CPlusPlus0x) { 21578cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis OverloadedOperatorKind OO = D.getName().OperatorFunctionId.Operator; 21588cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis /// In C++0x, deallocation functions (normal and array operator delete) 21598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis /// are implicitly noexcept. 21608cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (OO == OO_Delete || OO == OO_Array_Delete) 21618cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis ImplicitlyNoexcept = true; 21628cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } 216334b41d939a1328f484511c6002ba2456db879a29Richard Smith 2164cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 2165cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 2166cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 2167cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 21681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2169162e1c1b487352434552147967c3dd296ebee2f7Richard Smith // Does this declaration declare a typedef-name? 2170162e1c1b487352434552147967c3dd296ebee2f7Richard Smith bool IsTypedefName = 2171162e1c1b487352434552147967c3dd296ebee2f7Richard Smith D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef || 21723e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasDeclContext || 21733e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext; 2174162e1c1b487352434552147967c3dd296ebee2f7Richard Smith 2175d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // Does T refer to a function type with a cv-qualifier or a ref-qualifier? 2176d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith bool IsQualifiedFunction = T->isFunctionProtoType() && 2177d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith (T->castAs<FunctionProtoType>()->getTypeQuals() != 0 || 2178d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith T->castAs<FunctionProtoType>()->getRefQualifier() != RQ_None); 2179d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 218098eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 218198eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 218298eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 21838ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 2184711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned chunkIndex = e - i - 1; 2185711c52bb20d0c69063b52a99826fb7d2835501f1John McCall state.setCurrentChunkIndex(chunkIndex); 2186711c52bb20d0c69063b52a99826fb7d2835501f1John McCall DeclaratorChunk &DeclType = D.getTypeObject(chunkIndex); 2187d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (IsQualifiedFunction) { 2188d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith checkQualifiedFunction(S, T, DeclType); 2189d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith IsQualifiedFunction = DeclType.Kind == DeclaratorChunk::Paren; 2190d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith } 21915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 2192075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara case DeclaratorChunk::Paren: 21938cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildParenType(T); 2194075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara break; 21955618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 21969af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 21979af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 21988cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_blocks_disable); 21991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22008cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildBlockPointerType(T, D.getIdentifierLoc(), Name); 22012865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Cls.TypeQuals) 22028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); 22035618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 22045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 22056a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 22066a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 22078cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 22088cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 22096a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 22106a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 22116a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 22128cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjC1 && T->getAs<ObjCObjectType>()) { 2213c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = Context.getObjCObjectPointerType(T); 22142865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 22158cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 221614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 221714108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 22188cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildPointerType(T, DeclType.Loc, Name); 22192865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 22208cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 2221711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 22225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 22230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 22246a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 22256a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 22268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 22278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 22286a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 22296a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 22306a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 22318cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); 22322865474261a608c7873b87ba4af110d17907896dJohn McCall 22332865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Quals; 22342865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ref.HasRestrict) 22358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); 22365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 22370953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 22385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 22396a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 22406a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 22418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && S.CheckDistantExceptionSpec(T)) { 22428cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 22436a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 22446a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 22456a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 2246fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 224794f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 22485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 22495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 22505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 22515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 22525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 22535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 22545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 2255c05a94b7accd4035bf5d5897c434c445b22da855John McCall if (ASM == ArrayType::Star && !D.isPrototypeContext()) { 2256f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 2257f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 2258f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 22598cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 2260f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 2261f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 2262f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 22637f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg 22647f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // C99 6.7.5.2p1: The optional type qualifiers and the keyword static 22657f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // shall appear only in a declaration of a function parameter with an 22667f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // array type, ... 22677f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static || ATI.TypeQuals) { 226899570a58b09fca5d0b328733ab8b6717a1a04f4aMatt Beaumont-Gay if (!(D.isPrototypeContext() || 226999570a58b09fca5d0b328733ab8b6717a1a04f4aMatt Beaumont-Gay D.getContext() == Declarator::KNRTypeListContext)) { 22707f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg S.Diag(DeclType.Loc, diag::err_array_static_outside_prototype) << 22717f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg (ASM == ArrayType::Static ? "'static'" : "type qualifier"); 22727f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // Remove the 'static' and the type qualifiers. 22737f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static) 22747f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ASM = ArrayType::Normal; 22757f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ATI.TypeQuals = 0; 22767f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg D.setInvalidType(true); 22777f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 22787f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg 22797f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // C99 6.7.5.2p1: ... and then only in the outermost array type 22807f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // derivation. 22817f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg unsigned x = chunkIndex; 22827f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg while (x != 0) { 22837f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // Walk outwards along the declarator chunks. 22847f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg x--; 22857f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg const DeclaratorChunk &DC = D.getTypeObject(x); 22867f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg switch (DC.Kind) { 22877f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Paren: 22887f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg continue; 22897f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Array: 22907f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Pointer: 22917f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Reference: 22927f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::MemberPointer: 22937f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg S.Diag(DeclType.Loc, diag::err_array_static_not_outermost) << 22947f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg (ASM == ArrayType::Static ? "'static'" : "type qualifier"); 22957f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg if (ASM == ArrayType::Static) 22967f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ASM = ArrayType::Normal; 22977f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg ATI.TypeQuals = 0; 22987f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg D.setInvalidType(true); 22997f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg break; 23007f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::Function: 23017f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg case DeclaratorChunk::BlockPointer: 23027f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg // These are invalid anyway, so just ignore. 23037f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg break; 23047f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 23057f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 23067f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg } 23077f397c5d97fc0c11333d939f2c07bc3b230956e2Hans Wennborg 23088ac2c66a1442985091c5ec2b33ce6d3df3bcb529Eli Friedman T = S.BuildArrayType(T, ASM, ArraySize, ATI.TypeQuals, 23098cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 23105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 23115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2312f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 23135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 23145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 23155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 23165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 2317d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith IsQualifiedFunction = FTI.TypeQuals || FTI.hasRefQualifier(); 23183cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 231934b41d939a1328f484511c6002ba2456db879a29Richard Smith // Check for auto functions and trailing return type and adjust the 232034b41d939a1328f484511c6002ba2456db879a29Richard Smith // return type accordingly. 232134b41d939a1328f484511c6002ba2456db879a29Richard Smith if (!D.isInvalidType()) { 232234b41d939a1328f484511c6002ba2456db879a29Richard Smith // trailing-return-type is only required if we're declaring a function, 232334b41d939a1328f484511c6002ba2456db879a29Richard Smith // and not, for instance, a pointer to a function. 232434b41d939a1328f484511c6002ba2456db879a29Richard Smith if (D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto && 232554655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith !FTI.hasTrailingReturnType() && chunkIndex == 0) { 23268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 232734b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_auto_missing_trailing_return); 232834b41d939a1328f484511c6002ba2456db879a29Richard Smith T = Context.IntTy; 232934b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 233054655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith } else if (FTI.hasTrailingReturnType()) { 2331e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // T must be exactly 'auto' at this point. See CWG issue 681. 2332e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (isa<ParenType>(T)) { 23338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 2334e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diag::err_trailing_return_in_parens) 2335e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith << T << D.getDeclSpec().getSourceRange(); 2336e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2337f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman } else if (D.getContext() != Declarator::LambdaExprContext && 2338f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman (T.hasQualifiers() || !isa<AutoType>(T))) { 23398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), 234034b41d939a1328f484511c6002ba2456db879a29Richard Smith diag::err_trailing_return_without_auto) 234134b41d939a1328f484511c6002ba2456db879a29Richard Smith << T << D.getDeclSpec().getSourceRange(); 234234b41d939a1328f484511c6002ba2456db879a29Richard Smith D.setInvalidType(true); 234334b41d939a1328f484511c6002ba2456db879a29Richard Smith } 234454655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith T = S.GetTypeFromParser(FTI.getTrailingReturnType(), &TInfo); 234554655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith if (T.isNull()) { 234654655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith // An error occurred parsing the trailing return type. 234754655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith T = Context.IntTy; 234854655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith D.setInvalidType(true); 234954655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith } 235034b41d939a1328f484511c6002ba2456db879a29Richard Smith } 235134b41d939a1328f484511c6002ba2456db879a29Richard Smith } 235234b41d939a1328f484511c6002ba2456db879a29Richard Smith 2353e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // C99 6.7.5.3p1: The return type may not be a function or array type. 2354e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // For conversion functions, we'll diagnose this particular error later. 2355e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if ((T->isArrayType() || T->isFunctionType()) && 2356e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 2357e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith unsigned diagID = diag::err_func_returning_array_function; 2358e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // Last processing chunk in block context means this function chunk 2359e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith // represents the block. 2360e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith if (chunkIndex == 0 && 2361e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.getContext() == Declarator::BlockLiteralContext) 2362e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith diagID = diag::err_block_returning_array_function; 23638cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diagID) << T->isFunctionType() << T; 2364e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith T = Context.IntTy; 2365e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith D.setInvalidType(true); 2366e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith } 2367e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 2368aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Do not allow returning half FP value. 2369aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 2370aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov if (T->isHalfType()) { 2371aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov S.Diag(D.getIdentifierLoc(), 2372aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov diag::err_parameters_retval_cannot_have_fp16_type) << 1 2373aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov << FixItHint::CreateInsertion(D.getIdentifierLoc(), "*"); 2374aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov D.setInvalidType(true); 2375aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } 2376aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov 23775291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // cv-qualifiers on return types are pointless except when the type is a 23785291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // class type in C++. 2379fff951371dfc309160a99d423e43a7841aeb35aaDouglas Gregor if (isa<PointerType>(T) && T.getLocalCVRQualifiers() && 23801e15394853bfae25112d9cc6b445504905e1f34aRafael Espindola (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId) && 23818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis (!LangOpts.CPlusPlus || !T->isDependentType())) { 2382d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(chunkIndex + 1 < e && "No DeclaratorChunk for the return type?"); 2383d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DeclaratorChunk ReturnTypeChunk = D.getTypeObject(chunkIndex + 1); 2384d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth assert(ReturnTypeChunk.Kind == DeclaratorChunk::Pointer); 2385d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2386d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DeclaratorChunk::PointerTypeInfo &PTI = ReturnTypeChunk.Ptr; 2387d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2388d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DiagnoseIgnoredQualifiers(PTI.TypeQuals, 2389d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.ConstQualLoc), 2390d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.VolatileQualLoc), 2391d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth SourceLocation::getFromRawEncoding(PTI.RestrictQualLoc), 23928cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S); 2393d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2394d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth } else if (T.getCVRQualifiers() && D.getDeclSpec().getTypeQualifiers() && 23958cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis (!LangOpts.CPlusPlus || 23965291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor (!T->isDependentType() && !T->isRecordType()))) { 2397d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 2398d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth DiagnoseIgnoredQualifiers(D.getDeclSpec().getTypeQualifiers(), 2399d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getConstSpecLoc(), 2400d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getVolatileSpecLoc(), 2401d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth D.getDeclSpec().getRestrictSpecLoc(), 24028cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S); 24035291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor } 2404d067c07c6cbf099b25aba38bcb66f38e79d0c420Chandler Carruth 24058cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 2406402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 2407402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 2408b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl *Tag = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 24095e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall if (Tag->isCompleteDefinition()) 24108cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 2411402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 2412402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 2413402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 24143cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 24153cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 2416162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (IsTypedefName && FTI.getExceptionSpecType()) 24178cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getExceptionSpecLoc(), diag::err_exception_spec_in_typedef) 24183e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith << (D.getContext() == Declarator::AliasDeclContext || 24193e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith D.getContext() == Declarator::AliasTemplateContext); 24203cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 2421b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // If we see "T var();" or "T var(T());" at block scope, it is probably 2422b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith // an attempt to initialize a variable, not a function declaration. 2423b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith if (FTI.isAmbiguous) 2424b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith warnAboutAmbiguousFunction(S, D, DeclType, T); 2425b9c6261d02f688d0a9a36b736ad5956fbc737854Richard Smith 24268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && !FTI.isVariadic && !LangOpts.CPlusPlus) { 24272865474261a608c7873b87ba4af110d17907896dJohn McCall // Simple void foo(), where the incoming T is the result type. 24282865474261a608c7873b87ba4af110d17907896dJohn McCall T = Context.getFunctionNoProtoType(T); 24292865474261a608c7873b87ba4af110d17907896dJohn McCall } else { 24302865474261a608c7873b87ba4af110d17907896dJohn McCall // We allow a zero-parameter variadic function in C if the 24312865474261a608c7873b87ba4af110d17907896dJohn McCall // function is marked with the "overloadable" attribute. Scan 24322865474261a608c7873b87ba4af110d17907896dJohn McCall // for this attribute now. 24338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (!FTI.NumArgs && FTI.isVariadic && !LangOpts.CPlusPlus) { 2434965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 2435965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 2436965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 24378e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (Attrs->getKind() == AttributeList::AT_Overloadable) { 2438965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 2439965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 2440965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2441965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 2442965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 2443965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 24448cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 2445c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 24462865474261a608c7873b87ba4af110d17907896dJohn McCall 24472865474261a608c7873b87ba4af110d17907896dJohn McCall if (FTI.NumArgs && FTI.ArgInfo[0].Param == 0) { 2448788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function 2449788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // definition. 24508cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 24512865474261a608c7873b87ba4af110d17907896dJohn McCall D.setInvalidType(true); 24522865474261a608c7873b87ba4af110d17907896dJohn McCall break; 24532865474261a608c7873b87ba4af110d17907896dJohn McCall } 24542865474261a608c7873b87ba4af110d17907896dJohn McCall 2455e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo EPI; 2456e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.Variadic = FTI.isVariadic; 245754655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith EPI.HasTrailingReturn = FTI.hasTrailingReturnType(); 2458e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall EPI.TypeQuals = FTI.TypeQuals; 2459c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor EPI.RefQualifier = !FTI.hasRefQualifier()? RQ_None 2460c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : FTI.RefQualifierIsLValueRef? RQ_LValue 2461c938c1668b4fd12af154e965dd935a89e4801a70Douglas Gregor : RQ_RValue; 246291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 24635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 24645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 24655f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 24662865474261a608c7873b87ba4af110d17907896dJohn McCall ArgTys.reserve(FTI.NumArgs); 24671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24685f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<bool, 16> ConsumedArguments; 2469f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.reserve(FTI.NumArgs); 2470f85e193739c953358c865005855253af4f68a497John McCall bool HasAnyConsumedArguments = false; 2471f85e193739c953358c865005855253af4f68a497John McCall 24725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 2473d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 24748123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner QualType ArgTy = Param->getType(); 247578c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 24762dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 24772dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Adjust the parameter type. 247891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier assert((ArgTy == Context.getAdjustedParameterType(ArgTy)) && 247979e6bd379773447a74cc3e579d9081e4c5cb6d63Douglas Gregor "Unadjusted type?"); 24802dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 24815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 24825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 248372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 24842dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 24855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 24865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 24875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 24885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 24898cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_only_param); 24902ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 24918123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 24922ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 24932ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 24948cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(FTI.ArgInfo[i].IdentLoc, 24954565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 24962ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 24978123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 24982ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 24992ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 25000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 25018cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Loc, diag::err_void_param_qualified); 25021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25032ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 25042ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 25052ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 2506aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov } else if (ArgTy->isHalfType()) { 2507aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // Disallow half FP arguments. 2508aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov // FIXME: This really should be in BuildFunctionType. 2509aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov S.Diag(Param->getLocation(), 2510aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov diag::err_parameters_retval_cannot_have_fp16_type) << 0 2511aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov << FixItHint::CreateInsertion(Param->getLocation(), "*"); 2512aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov D.setInvalidType(); 2513eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 2514eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 2515a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 2516eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2517183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 2518eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall if (BTy->getKind() == BuiltinType::Float) { 2519eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 2520eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall Param->setKNRPromoted(true); 2521eecf5fa12d5426637c47d7072f0c193a8d7ff68bJohn McCall } 2522eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 25235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 252456a965c0f77c9e6bffd65cc8f8796442a8527381Fariborz Jahanian 25258cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.ObjCAutoRefCount) { 2526f85e193739c953358c865005855253af4f68a497John McCall bool Consumed = Param->hasAttr<NSConsumedAttr>(); 2527f85e193739c953358c865005855253af4f68a497John McCall ConsumedArguments.push_back(Consumed); 2528f85e193739c953358c865005855253af4f68a497John McCall HasAnyConsumedArguments |= Consumed; 2529f85e193739c953358c865005855253af4f68a497John McCall } 2530f85e193739c953358c865005855253af4f68a497John McCall 253154e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 25325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2533465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2534f85e193739c953358c865005855253af4f68a497John McCall if (HasAnyConsumedArguments) 2535f85e193739c953358c865005855253af4f68a497John McCall EPI.ConsumedArguments = ConsumedArguments.data(); 2536f85e193739c953358c865005855253af4f68a497John McCall 25375f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 4> Exceptions; 253874e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor SmallVector<ParsedType, 2> DynamicExceptions; 253974e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor SmallVector<SourceRange, 2> DynamicExceptionRanges; 254074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor Expr *NoexceptExpr = 0; 254191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 25428b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl if (FTI.getExceptionSpecType() == EST_Dynamic) { 254374e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor // FIXME: It's rather inefficient to have to split into two vectors 254474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor // here. 254574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor unsigned N = FTI.NumExceptions; 254674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions.reserve(N); 254774e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges.reserve(N); 254874e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor for (unsigned I = 0; I != N; ++I) { 254974e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions.push_back(FTI.Exceptions[I].Ty); 255074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges.push_back(FTI.Exceptions[I].Range); 2551e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 25528b5b4099c61a136e9a1714c4d8a593febe942268Sebastian Redl } else if (FTI.getExceptionSpecType() == EST_ComputedNoexcept) { 255374e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor NoexceptExpr = FTI.NoexceptExpr; 255474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor } 255591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 255674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor S.checkExceptionSpecification(FTI.getExceptionSpecType(), 255774e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions, 255874e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges, 255974e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor NoexceptExpr, 256074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor Exceptions, 256174e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor EPI); 256291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 256374e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor if (FTI.getExceptionSpecType() == EST_None && 256474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor ImplicitlyNoexcept && chunkIndex == 0) { 25658999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl // Only the outermost chunk is marked noexcept, of course. 25668999fe1bc367b3ecc878d135c7b31e3479da56f4Sebastian Redl EPI.ExceptionSpecType = EST_BasicNoexcept; 2567ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 2568465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 2569e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall T = Context.getFunctionType(T, ArgTys.data(), ArgTys.size(), EPI); 25705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 257104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 25725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 25735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2574f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 2575f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 25767bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara CXXScopeSpec &SS = DeclType.Mem.Scope(); 2577f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 25787bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (SS.isInvalid()) { 2579edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 2580edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 25818cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis } else if (S.isDependentScopeSpecifier(SS) || 25828cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis dyn_cast_or_null<CXXRecordDecl>(S.computeDeclContext(SS))) { 25831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 25847bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara = static_cast<NestedNameSpecifier*>(SS.getScopeRep()); 258587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 258687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 258787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 25887bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 25894a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 259087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 259187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 259287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 259314aba76042e041b2c5e439bf4ae353a0a3c7fd73Douglas Gregor case NestedNameSpecifier::NamespaceAlias: 259487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 25959f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 25967bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara 259787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 259887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 259987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 260091ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Note: if the NNS has a prefix and ClsType is a nondependent 260191ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // TemplateSpecializationType, then the NNS prefix is NOT included 260291ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // in ClsType; hence we wrap ClsType into an ElaboratedType. 260391ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // NOTE: in particular, no wrap occurs if ClsType already is an 260491ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara // Elaborated, DependentName, or DependentTemplateSpecialization. 260591ce2c4484e56cdc8068cebaaf2bb42362b0e1a6Abramo Bagnara if (NNSPrefix && isa<TemplateSpecializationType>(NNS->getAsType())) 26067bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getElaboratedType(ETK_None, NNSPrefix, ClsType); 260787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 260887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 2609f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 26108cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(DeclType.Mem.Scope().getBeginLoc(), 2611949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 2612949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 2613949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 2614f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 2615f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2616f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2617949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 26188cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildMemberPointerType(T, ClsType, DeclType.Loc, D.getIdentifier()); 2619949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 2620f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 2621949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 26222865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (DeclType.Mem.TypeQuals) { 26238cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis T = S.BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); 2624f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2625f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 2626f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 2627f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 2628cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 2629cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 2630cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 2631cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 2632cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 2633c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 2634711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = const_cast<AttributeList*>(DeclType.getAttrs())) 2635711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 26365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2637971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 26388cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (LangOpts.CPlusPlus && T->isFunctionType()) { 2639183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 2640778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 2641971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 264291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // C++ 8.3.5p4: 2643708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // A cv-qualifier-seq shall only be part of the function type 2644708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // for a nonstatic member function, the function type to which a pointer 2645708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // to member refers, or the top-level function type of a function typedef 2646708f3b8e350a5c0605889a4f32b26686864495caDouglas Gregor // declaration. 2647683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // 2648683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // Core issue 547 also allows cv-qualifiers on function types that are 2649683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor // top-level template type arguments. 2650613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall bool FreeFunction; 2651613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall if (!D.getCXXScopeSpec().isSet()) { 2652906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman FreeFunction = ((D.getContext() != Declarator::MemberContext && 2653906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman D.getContext() != Declarator::LambdaExprContext) || 2654613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall D.getDeclSpec().isFriendSpecified()); 2655613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } else { 26568cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis DeclContext *DC = S.computeDeclContext(D.getCXXScopeSpec()); 2657613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall FreeFunction = (DC && !DC->isRecord()); 2658613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall } 2659613ef3d4c144f8c35224daf28a187426d2044aeeJohn McCall 266055dec868977ccb89cab0286122f9345f63bb5de7Richard Smith // C++0x [dcl.constexpr]p8: A constexpr specifier for a non-static member 266155dec868977ccb89cab0286122f9345f63bb5de7Richard Smith // function that is not a constructor declares that function to be const. 266255dec868977ccb89cab0286122f9345f63bb5de7Richard Smith if (D.getDeclSpec().isConstexprSpecified() && !FreeFunction && 26631bf9a9e6a5bdc0de7939908855dcddf46b661800Richard Smith D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_static && 266455dec868977ccb89cab0286122f9345f63bb5de7Richard Smith D.getName().getKind() != UnqualifiedId::IK_ConstructorName && 266555dec868977ccb89cab0286122f9345f63bb5de7Richard Smith D.getName().getKind() != UnqualifiedId::IK_ConstructorTemplateId && 266655dec868977ccb89cab0286122f9345f63bb5de7Richard Smith !(FnTy->getTypeQuals() & DeclSpec::TQ_const)) { 266755dec868977ccb89cab0286122f9345f63bb5de7Richard Smith // Rebuild function type adding a 'const' qualifier. 266855dec868977ccb89cab0286122f9345f63bb5de7Richard Smith FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 266955dec868977ccb89cab0286122f9345f63bb5de7Richard Smith EPI.TypeQuals |= DeclSpec::TQ_const; 267091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier T = Context.getFunctionType(FnTy->getResultType(), 267155dec868977ccb89cab0286122f9345f63bb5de7Richard Smith FnTy->arg_type_begin(), 267255dec868977ccb89cab0286122f9345f63bb5de7Richard Smith FnTy->getNumArgs(), EPI); 267355dec868977ccb89cab0286122f9345f63bb5de7Richard Smith } 267455dec868977ccb89cab0286122f9345f63bb5de7Richard Smith 2675d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // C++11 [dcl.fct]p6 (w/DR1417): 2676d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // An attempt to specify a function type with a cv-qualifier-seq or a 2677d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // ref-qualifier (including by typedef-name) is ill-formed unless it is: 2678d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the function type for a non-static member function, 2679d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the function type to which a pointer to member refers, 2680d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the top-level function type of a function typedef declaration or 2681d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // alias-declaration, 2682d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the type-id in the default argument of a type-parameter, or 2683d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // - the type-id of a template-argument for a type-parameter 2684d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (IsQualifiedFunction && 2685d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith !(!FreeFunction && 2686d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_static) && 2687d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith !IsTypedefName && 2688d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith D.getContext() != Declarator::TemplateTypeArgContext) { 268996a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar SourceLocation Loc = D.getLocStart(); 2690d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith SourceRange RemovalRange; 2691d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith unsigned I; 2692d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (D.isFunctionDeclarator(I)) { 2693d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith SmallVector<SourceLocation, 4> RemovalLocs; 2694d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith const DeclaratorChunk &Chunk = D.getTypeObject(I); 2695d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith assert(Chunk.Kind == DeclaratorChunk::Function); 2696d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.hasRefQualifier()) 2697d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getRefQualifierLoc()); 2698d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.TypeQuals & Qualifiers::Const) 2699d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getConstQualifierLoc()); 2700d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (Chunk.Fun.TypeQuals & Qualifiers::Volatile) 2701d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalLocs.push_back(Chunk.Fun.getVolatileQualifierLoc()); 2702d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // FIXME: We do not track the location of the __restrict qualifier. 2703d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith //if (Chunk.Fun.TypeQuals & Qualifiers::Restrict) 2704d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // RemovalLocs.push_back(Chunk.Fun.getRestrictQualifierLoc()); 2705d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith if (!RemovalLocs.empty()) { 2706d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith std::sort(RemovalLocs.begin(), RemovalLocs.end(), 2707aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko BeforeThanCompare<SourceLocation>(S.getSourceManager())); 2708d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith RemovalRange = SourceRange(RemovalLocs.front(), RemovalLocs.back()); 2709d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith Loc = RemovalLocs.front(); 2710683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2711683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor } 2712d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2713d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith S.Diag(Loc, diag::err_invalid_qualified_function_type) 2714d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << FreeFunction << D.isFunctionDeclarator() << T 2715d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << getFunctionQualifiersAsString(FnTy) 2716d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith << FixItHint::CreateRemoval(RemovalRange); 2717d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 2718d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith // Strip the cv-qualifiers and ref-qualifiers from the type. 2719d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith FunctionProtoType::ExtProtoInfo EPI = FnTy->getExtProtoInfo(); 2720d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith EPI.TypeQuals = 0; 2721d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith EPI.RefQualifier = RQ_None; 2722d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith 272391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier T = Context.getFunctionType(FnTy->getResultType(), 2724d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith FnTy->arg_type_begin(), 2725d37b360bf9f954af119c9805fdc79ab9d30e06c6Richard Smith FnTy->getNumArgs(), EPI); 2726971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 2727971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 27281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2729711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Apply any undistributed attributes from the declarator. 2730711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) 2731711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (AttributeList *attrs = D.getAttributes()) 2732711c52bb20d0c69063b52a99826fb7d2835501f1John McCall processTypeAttrs(state, T, false, attrs); 2733711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2734711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnose any ignored type attributes. 2735711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!T.isNull()) state.diagnoseIgnoredTypeAttrs(T); 2736711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2737148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // C++0x [dcl.constexpr]p9: 2738148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne // A constexpr specifier used in an object declaration declares the object 273991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // as const. 2740148f1f7936afd718bac7be95089e77673e43f16fPeter Collingbourne if (D.getDeclSpec().isConstexprSpecified() && T->isObjectType()) { 2741737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl T.addConst(); 2742737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl } 2743737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl 274491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If there was an ellipsis in the declarator, the declaration declares a 2745a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter pack whose type may be a pack expansion type. 2746a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (D.hasEllipsis() && !T.isNull()) { 2747a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 274891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // A declarator-id or abstract-declarator containing an ellipsis shall 2749a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // only be used in a parameter-declaration. Such a parameter-declaration 2750a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // is a parameter pack (14.5.3). [...] 2751a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor switch (D.getContext()) { 2752a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::PrototypeContext: 2753a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [dcl.fct]p13: 275491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // [...] When it is part of a parameter-declaration-clause, the 275591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // parameter pack is a function parameter pack (14.5.3). The type T 2756a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // of the declarator-id of the function parameter pack shall contain 275791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // a template parameter pack; each template parameter pack in T is 2758a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // expanded by the function parameter pack. 2759a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 2760a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // We represent function parameter packs as function parameters whose 2761a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // type is a pack expansion. 2762a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (!T->containsUnexpandedParameterPack()) { 276391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier S.Diag(D.getEllipsisLoc(), 2764a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor diag::err_function_parameter_pack_without_parameter_packs) 2765a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor << T << D.getSourceRange(); 2766a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 2767a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } else { 2768cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 2769a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2770a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 277191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 2772a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TemplateParamContext: 2773a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // C++0x [temp.param]p15: 277491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // If a template-parameter is a [...] is a parameter-declaration that 2775a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // declares a parameter pack (8.3.5), then the template-parameter is a 2776a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // template parameter pack (14.5.3). 2777a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // 2778a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Note: core issue 778 clarifies that, if there are any unexpanded 2779a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // parameter packs in the type of the non-type template parameter, then 2780a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // it expands those parameter packs. 2781a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (T->containsUnexpandedParameterPack()) 2782cded4f649cd4b7ba7d461c25c6482ef52b8d3a2aDouglas Gregor T = Context.getPackExpansionType(T, llvm::Optional<unsigned>()); 2783e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith else 2784e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith S.Diag(D.getEllipsisLoc(), 2785e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith LangOpts.CPlusPlus0x 2786e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith ? diag::warn_cxx98_compat_variadic_templates 2787e5acd13f885ac95d0f2dafda245625b8190235acRichard Smith : diag::ext_variadic_templates); 2788a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 278991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 2790a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::FileContext: 2791a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::KNRTypeListContext: 2792cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCParameterContext: // FIXME: special diagnostic here? 2793cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall case Declarator::ObjCResultContext: // FIXME: special diagnostic here? 2794a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::TypeNameContext: 27950b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis case Declarator::CXXNewContext: 2796162e1c1b487352434552147967c3dd296ebee2f7Richard Smith case Declarator::AliasDeclContext: 27973e4c6c4c79a03f5cb0c4671d7c282d623c6dc35eRichard Smith case Declarator::AliasTemplateContext: 2798a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::MemberContext: 2799a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockContext: 2800a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ForContext: 2801a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::ConditionContext: 2802a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::CXXCatchContext: 280317b6399f8461c5b7e1c6f367b0a0dde49f921240Argyrios Kyrtzidis case Declarator::ObjCCatchContext: 2804a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor case Declarator::BlockLiteralContext: 2805f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman case Declarator::LambdaExprContext: 28067796eb5643244f3134834253ce5ea89107ac21c1Richard Smith case Declarator::TrailingReturnContext: 2807683a81f4373cf1fa9d41a751dca6f7c36125b058Douglas Gregor case Declarator::TemplateTypeArgContext: 2808a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // FIXME: We may want to allow parameter packs in block-literal contexts 2809a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // in the future. 28108cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis S.Diag(D.getEllipsisLoc(), diag::err_ellipsis_in_declarator_not_parameter); 2811a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor D.setEllipsisLoc(SourceLocation()); 2812a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor break; 2813a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2814a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 2815e7397c6a1bb2b205c5fe678e26199eb26d22e38eRichard Smith 2816bf1a028246d884a540aeafa38e89be59a269b072John McCall if (T.isNull()) 2817bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 2818bf1a028246d884a540aeafa38e89be59a269b072John McCall else if (D.isInvalidType()) 2819bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getTrivialTypeSourceInfo(T); 2820db7abf78dedc2ef6ccb42b3dac6ab330fe2ea469Argyrios Kyrtzidis 28218cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return S.GetTypeSourceInfoForDeclarator(D, T, TInfo); 28228cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis} 28238cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 28248cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// GetTypeForDeclarator - Convert the type for the specified 28258cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// declarator to Type instances. 28268cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// 28278cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// The result of this call will never be null, but the associated 28288cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis/// type may be a null type if there's an unrecoverable error. 28298cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S) { 28308cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // Determine the type of the declarator. Not all forms of declarator 28318cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis // have a type. 28328cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 28338cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeProcessingState state(*this, D); 28348cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 28358cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 28368cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis QualType T = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 28378cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis if (T.isNull()) 28388cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 28398cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis 28404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (D.isPrototypeContext() && getLangOpts().ObjCAutoRefCount) 28418cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis inferARCWriteback(state, T); 284291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 28438cfa57b348d4d5a58d92764a60280bf88e4e49aeArgyrios Kyrtzidis return GetFullTypeForDeclarator(state, T, ReturnTypeInfo); 28445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 28455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 284631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclSpec(Sema &S, 284731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 284831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 284931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType() && 285031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy.getObjCLifetime() == Qualifiers::OCL_None) { 285131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers qs; 285231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis qs.addObjCLifetime(ownership); 285331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis declSpecTy = S.Context.getQualifiedType(declSpecTy, qs); 285431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 285531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 285631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 285731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnershipToDeclaratorChunk(TypeProcessingState &state, 285831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership, 285931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis unsigned chunkIndex) { 286031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 286131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 286231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 286331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Look for an explicit lifetime attribute. 286431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(chunkIndex); 286531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (const AttributeList *attr = chunk.getAttrs(); attr; 286631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis attr = attr->getNext()) 28678e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr->getKind() == AttributeList::AT_ObjCOwnership) 286831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 286931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 287031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis const char *attrStr = 0; 287131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (ownership) { 28723026348bd4c13a0f83b59839f64065e0fcbea253David Blaikie case Qualifiers::OCL_None: llvm_unreachable("no ownership!"); 287331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: attrStr = "none"; break; 287431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Strong: attrStr = "strong"; break; 287531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Weak: attrStr = "weak"; break; 287631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: attrStr = "autoreleasing"; break; 287731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 287831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 287931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // If there wasn't one, add one (with an invalid source location 288031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // so that we don't make an AttributedType for it). 288131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis AttributeList *attr = D.getAttributePool() 288231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis .create(&S.Context.Idents.get("objc_ownership"), SourceLocation(), 288331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis /*scope*/ 0, SourceLocation(), 288431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis &S.Context.Idents.get(attrStr), SourceLocation(), 288593f95f2a2cbb6bb3d17bfb5fc74ce1cccea751b6Sean Hunt /*args*/ 0, 0, AttributeList::AS_GNU); 288631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis spliceAttrIntoList(*attr, chunk.getAttrListRef()); 288731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 288831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // TODO: mark whether we did this inference? 288931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 289031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 289148d798ce32447607144db70a484cdb99c1180663Benjamin Kramer/// \brief Used for transferring ownership in casts resulting in l-values. 289231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidisstatic void transferARCOwnership(TypeProcessingState &state, 289331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType &declSpecTy, 289431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership) { 289531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Sema &S = state.getSema(); 289631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator &D = state.getDeclarator(); 289731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 289831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis int inner = -1; 28996ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis bool hasIndirection = false; 290031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 290131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclaratorChunk &chunk = D.getTypeObject(i); 290231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis switch (chunk.Kind) { 290331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Paren: 290431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Ignore parens. 290531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 290631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 290731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Array: 290831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Reference: 290931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Pointer: 29106ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 29116ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis hasIndirection = true; 291231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis inner = i; 291331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis break; 291431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 291531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::BlockPointer: 29166ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (inner != -1) 29176ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis transferARCOwnershipToDeclaratorChunk(state, ownership, i); 29186ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 291931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 292031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::Function: 292131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis case DeclaratorChunk::MemberPointer: 292231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return; 292331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 292431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 292531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 292631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (inner == -1) 29276ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis return; 292831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 292991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier DeclaratorChunk &chunk = D.getTypeObject(inner); 293031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (chunk.Kind == DeclaratorChunk::Pointer) { 293131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy->isObjCRetainableType()) 293231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 29336ee54925f709176a33aab4727bc35bea2d05aca4Argyrios Kyrtzidis if (declSpecTy->isObjCObjectType() && hasIndirection) 293431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclaratorChunk(state, ownership, inner); 293531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } else { 293631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis assert(chunk.Kind == DeclaratorChunk::Array || 293731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis chunk.Kind == DeclaratorChunk::Reference); 293831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return transferARCOwnershipToDeclSpec(S, declSpecTy, ownership); 293931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 294031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 294131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 294231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios KyrtzidisTypeSourceInfo *Sema::GetTypeForDeclaratorCast(Declarator &D, QualType FromTy) { 294331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeProcessingState state(*this, D); 294431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 294531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis TypeSourceInfo *ReturnTypeInfo = 0; 294631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis QualType declSpecTy = GetDeclSpecTypeForDeclarator(state, ReturnTypeInfo); 294731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (declSpecTy.isNull()) 294831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return Context.getNullTypeSourceInfo(); 294931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 29504e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjCAutoRefCount) { 295131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Qualifiers::ObjCLifetime ownership = Context.getInnerObjCOwnership(FromTy); 295231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (ownership != Qualifiers::OCL_None) 295331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis transferARCOwnership(state, declSpecTy, ownership); 295431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis } 295531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 295631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis return GetFullTypeForDeclarator(state, declSpecTy, ReturnTypeInfo); 295731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis} 295831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 295914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall/// Map an AttributedType::Kind to an AttributeList::Kind. 296014aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic AttributeList::Kind getAttrListKind(AttributedType::Kind kind) { 296114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall switch (kind) { 296214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_address_space: 29638e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_AddressSpace; 296414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_regparm: 29658e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Regparm; 296614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_vector_size: 29678e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_VectorSize; 296814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_vector_type: 29698e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NeonVectorType; 297014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_neon_polyvector_type: 29718e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NeonPolyVectorType; 297214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_objc_gc: 29738e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ObjCGC; 2974b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributedType::attr_objc_ownership: 29758e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ObjCOwnership; 297614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_noreturn: 29778e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_NoReturn; 297814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_cdecl: 29798e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_CDecl; 298014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_fastcall: 29818e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_FastCall; 298214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_stdcall: 29838e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_StdCall; 298414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_thiscall: 29858e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_ThisCall; 298614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall case AttributedType::attr_pascal: 29878e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Pascal; 2988414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributedType::attr_pcs: 29898e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt return AttributeList::AT_Pcs; 299014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 299114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall llvm_unreachable("unexpected attribute kind!"); 299214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 299314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 299414aa2175416f79ef17811282afbf425f87d54ebfJohn McCallstatic void fillAttributedTypeLoc(AttributedTypeLoc TL, 299514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall const AttributeList *attrs) { 299614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributedType::Kind kind = TL.getAttrKind(); 299714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 299814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no type attributes in the expected location!"); 299914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributeList::Kind parsedKind = getAttrListKind(kind); 300014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall while (attrs->getKind() != parsedKind) { 300114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall attrs = attrs->getNext(); 300214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall assert(attrs && "no matching attribute in expected location!"); 300314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 300414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 300514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrNameLoc(attrs->getLoc()); 300614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrExprOperand()) 300714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrExprOperand(attrs->getArg(0)); 300814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall else if (TL.hasAttrEnumOperand()) 300914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrEnumOperandLoc(attrs->getParameterLoc()); 301014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 301114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // FIXME: preserve this information to here. 301214aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (TL.hasAttrOperand()) 301314aa2175416f79ef17811282afbf425f87d54ebfJohn McCall TL.setAttrOperandParensRange(SourceRange()); 301414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall} 301514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 301651bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 301751bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 3018c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor ASTContext &Context; 301951bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 3020f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 302151bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 302291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier TypeSpecLocFiller(ASTContext &Context, const DeclSpec &DS) 3023c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor : Context(Context), DS(DS) {} 3024f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 302514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 302614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, DS.getAttributes().getList()); 302714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall Visit(TL.getModifiedLoc()); 302814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 302951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 303051bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 303151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 303251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 303351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 303451bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 303551bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 303651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 30371de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // FIXME. We should have DS.getTypeSpecTypeEndLoc(). But, it requires 30381de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // addition field. What we have is good enough for dispay of location 30391de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian // of 'fixit' on interface name. 30401de6a6cb485fb58b4fb100282bb3cf298eedacd9Fariborz Jahanian TL.setNameEndLoc(DS.getLocEnd()); 3041c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 3042c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 3043c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Handle the base type, which might not have been written explicitly. 3044c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 3045c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(false); 3046c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.getBaseLoc().initialize(Context, SourceLocation()); 3047c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else { 3048c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(true); 3049c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getBaseLoc()); 3050c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 305154e14c4db764c0636160d26c5bbf491637c83a76John McCall 3052c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Protocol qualifiers. 305354e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 305454e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 305554e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 305654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 305754e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 305854e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 305954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 306054e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 306154e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 306254e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 306354e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 306454e14c4db764c0636160d26c5bbf491637c83a76John McCall } 306551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 306654e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 306754e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 3068c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getPointeeLoc()); 306951bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 3070833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 3071a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 3072b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3073833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3074833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 3075833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 3076a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 30770daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.initialize(Context, DS.getTypeSpecTypeNameLoc()); 3078833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 3079833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 3080833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 3081e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeLoc OldTL = TInfo->getTypeLoc(); 3082e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo->getType()->getAs<ElaboratedType>()) { 3083e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeLoc ElabTL = cast<ElaboratedTypeLoc>(OldTL); 3084e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TemplateSpecializationTypeLoc NamedTL = 3085e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara cast<TemplateSpecializationTypeLoc>(ElabTL.getNamedTypeLoc()); 3086e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(NamedTL); 3087e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3088e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara else 3089e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<TemplateSpecializationTypeLoc>(OldTL)); 3090833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 3091cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 3092cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 3093cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 3094cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 3095cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 3096cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 3097cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 3098cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 3099cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 3100b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall assert(DS.getRepAsType()); 3101cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 3102b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3103cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 3104cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 3105ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt void VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) { 3106ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt // FIXME: This holds only because we only have one unary transform. 3107ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getTypeSpecType() == DeclSpec::TST_underlyingType); 3108ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setKWLoc(DS.getTypeSpecTypeLoc()); 3109ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setParensRange(DS.getTypeofParensRange()); 3110ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(DS.getRepAsType()); 3111ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TypeSourceInfo *TInfo = 0; 3112ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3113ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt TL.setUnderlyingTInfo(TInfo); 3114ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 3115ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 3116ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 3117ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 3118ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 3119ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 3120ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 3121ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 3122ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 3123ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 3124ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 3125ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 3126ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 3127ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 3128ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 3129ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 3130e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 3131e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 3132e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 3133253e80b019727451edb4cbcad71277fcbe05ff0eNico Weber if (DS.getTypeSpecType() == TST_typename) { 3134e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 3135b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 3136e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 3137e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<ElaboratedTypeLoc>(TInfo->getTypeLoc())); 3138e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 3139e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3140e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 314138a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara TL.setElaboratedKeywordLoc(Keyword != ETK_None 314238a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara ? DS.getTypeSpecTypeLoc() 314338a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara : SourceLocation()); 3144e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 31459e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor TL.setQualifierLoc(SS.getWithLocInContext(Context)); 3146e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); 3147e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3148e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 314966581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(DS.getTypeSpecType() == TST_typename); 315066581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TypeSourceInfo *TInfo = 0; 315166581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 315266581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(TInfo); 315366581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TL.copy(cast<DependentNameTypeLoc>(TInfo->getTypeLoc())); 315433500955d731c73717af52088b7fc0e7a85681e7John McCall } 315533500955d731c73717af52088b7fc0e7a85681e7John McCall void VisitDependentTemplateSpecializationTypeLoc( 315633500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypeLoc TL) { 315766581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(DS.getTypeSpecType() == TST_typename); 315866581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TypeSourceInfo *TInfo = 0; 315966581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 316066581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara assert(TInfo); 316166581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TL.copy(cast<DependentTemplateSpecializationTypeLoc>( 316266581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TInfo->getTypeLoc())); 31630daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara } 31640daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara void VisitTagTypeLoc(TagTypeLoc TL) { 31650daaf32723ac78549c507c2a68a5300502703673Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeNameLoc()); 3166e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 3167b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman void VisitAtomicTypeLoc(AtomicTypeLoc TL) { 3168b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman TL.setKWLoc(DS.getTypeSpecTypeLoc()); 3169b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman TL.setParensRange(DS.getTypeofParensRange()); 317091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 317143fe245b37c3cd36d837aab9eb98551328d30141Douglas Gregor TypeSourceInfo *TInfo = 0; 317243fe245b37c3cd36d837aab9eb98551328d30141Douglas Gregor Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 317343fe245b37c3cd36d837aab9eb98551328d30141Douglas Gregor TL.getValueLoc().initializeFullCopy(TInfo->getTypeLoc()); 3174b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 3175e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 317651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 317751bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 3178c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TL.initialize(Context, DS.getTypeSpecTypeLoc()); 317951bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 318051bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 3181eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 318251bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 3183b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ASTContext &Context; 318451bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 3185f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 318651bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 3187b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(ASTContext &Context, const DeclaratorChunk &Chunk) 3188b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara : Context(Context), Chunk(Chunk) {} 31894adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 319051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 31919f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 319251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 31934adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3194f85e193739c953358c865005855253af4f68a497John McCall void VisitAttributedTypeLoc(AttributedTypeLoc TL) { 3195f85e193739c953358c865005855253af4f68a497John McCall fillAttributedTypeLoc(TL, Chunk.getAttrs()); 3196f85e193739c953358c865005855253af4f68a497John McCall } 319751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 319851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 319951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 32004adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 320151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 320251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 320351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 32044adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 320551bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 320651bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 320751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 32084adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 320951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 321051bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 3211b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const CXXScopeSpec& SS = Chunk.Mem.Scope(); 3212b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NestedNameSpecifierLoc NNSLoc = SS.getWithLocInContext(Context); 3213b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3214b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara const Type* ClsTy = TL.getClass(); 3215b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara QualType ClsQT = QualType(ClsTy, 0); 3216b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeSourceInfo *ClsTInfo = Context.CreateTypeSourceInfo(ClsQT, 0); 3217b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Now copy source location info into the type loc component. 3218b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc ClsTL = ClsTInfo->getTypeLoc(); 3219b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara switch (NNSLoc.getNestedNameSpecifier()->getKind()) { 3220b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Identifier: 3221b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara assert(isa<DependentNameType>(ClsTy) && "Unexpected TypeLoc"); 3222b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara { 3223fd9c42ed22fb4f7f865f7d8f8848df84ddf8262cAbramo Bagnara DependentNameTypeLoc DNTLoc = cast<DependentNameTypeLoc>(ClsTL); 322438a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara DNTLoc.setElaboratedKeywordLoc(SourceLocation()); 3225b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setQualifierLoc(NNSLoc.getPrefix()); 3226b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DNTLoc.setNameLoc(NNSLoc.getLocalBeginLoc()); 3227b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3228b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3229b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3230b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpec: 3231b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::TypeSpecWithTemplate: 3232b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara if (isa<ElaboratedType>(ClsTy)) { 3233b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ElaboratedTypeLoc ETLoc = *cast<ElaboratedTypeLoc>(&ClsTL); 323438a42916cb07fd368d9e2ae1e7915fa896f9ec06Abramo Bagnara ETLoc.setElaboratedKeywordLoc(SourceLocation()); 3235b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ETLoc.setQualifierLoc(NNSLoc.getPrefix()); 3236b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TypeLoc NamedTL = ETLoc.getNamedTypeLoc(); 3237b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara NamedTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3238b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } else { 3239b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara ClsTL.initializeFullCopy(NNSLoc.getTypeLoc()); 3240b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3241b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara break; 3242b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3243b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Namespace: 3244b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::NamespaceAlias: 3245b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara case NestedNameSpecifier::Global: 3246b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara llvm_unreachable("Nested-name-specifier must name a type"); 3247b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara } 3248b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara 3249b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara // Finally fill in MemberPointerLocInfo fields. 325051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 3251b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara TL.setClassTInfo(ClsTInfo); 32524adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 325351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 325451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 325554e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 325654e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 325751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 325851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 325951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 326051bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 326151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 326251bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 326351bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 326451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 326551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 326651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 326751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 326851bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 326951bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 327051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 327151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 3272796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeBegin(Chunk.Loc); 3273796aa443ab5ed036f42ef33fed629e1b4b34871bAbramo Bagnara TL.setLocalRangeEnd(Chunk.EndLoc); 327451bd803fbdade51d674598ed45da3d54190a656cJohn McCall 327551bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 327654e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 3277d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 327854e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 32794adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 328051bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 32814adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 3282075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara void VisitParenTypeLoc(ParenTypeLoc TL) { 3283075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Chunk.Kind == DeclaratorChunk::Paren); 3284075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setLParenLoc(Chunk.Loc); 3285075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara TL.setRParenLoc(Chunk.EndLoc); 3286075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara } 32871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 328851bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 32899f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 32904adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 329151bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 329251bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 32934adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3294a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 329551bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 329651bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 329705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// 329805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// \param ReturnTypeInfo For declarators whose return type does not show 329905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// up in the normal place in the declaration specifiers (such as a C++ 330005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// conversion function), this pointer will refer to a type source information 330105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// for that return type. 3302a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 330305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas GregorSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T, 330405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo) { 3305a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 3306a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 330751bd803fbdade51d674598ed45da3d54190a656cJohn McCall 3308a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor // Handle parameter packs whose type is a pack expansion. 3309a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor if (isa<PackExpansionType>(T)) { 3310a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor cast<PackExpansionTypeLoc>(CurrTL).setEllipsisLoc(D.getEllipsisLoc()); 331191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 3312a8bc8c9e9ba5bffebde00340786fe8542469c435Douglas Gregor } 331391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 33148ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 331514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall while (isa<AttributedTypeLoc>(CurrTL)) { 331614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall AttributedTypeLoc TL = cast<AttributedTypeLoc>(CurrTL); 331714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall fillAttributedTypeLoc(TL, D.getTypeObject(i).getAttrs()); 331814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall CurrTL = TL.getNextTypeLoc().getUnqualifiedLoc(); 331914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall } 332014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 3321b6ab6c1ca733fda2302a1c5066bdfc6218c89e41Abramo Bagnara DeclaratorLocFiller(Context, D.getTypeObject(i)).Visit(CurrTL); 332251bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 33234adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 332491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3325b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // If we have different source information for the return type, use 3326b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // that. This really only applies to C++ conversion functions. 3327b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ReturnTypeInfo) { 332805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeLoc TL = ReturnTypeInfo->getTypeLoc(); 332905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); 333005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); 3331b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } else { 3332c21c7e9c2cded68f91be15be6847c9649242dc17Douglas Gregor TypeSpecLocFiller(Context, D.getDeclSpec()).Visit(CurrTL); 333305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor } 333491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3335a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 33364adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 33374adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 3338a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 3339b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallParsedType Sema::CreateParsedType(QualType T, TypeSourceInfo *TInfo) { 33401bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 33411bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 33421bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 334391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 3344eb0eb49ce5f5294902769702b9322e42e89e972eDouglas Gregor TypeAlignment); 3345a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 33461bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 33471bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 3348b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return ParsedType::make(QualType(LocT, 0)); 33491bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 33501bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 33511bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 33521bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 3353b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("LocInfoType leaked into the type system; an opaque TypeTy*" 335435d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 335535d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 33561bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 33571bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 3358f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallTypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 33595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 33605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 33615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 33621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3363d3880f8458bb6a03818ee01f758c32f945de3eaaArgyrios Kyrtzidis TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S); 3364bf1a028246d884a540aeafa38e89be59a269b072John McCall QualType T = TInfo->getType(); 33655153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 3366809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 33675912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 3368e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall // Make sure there are no unused decl attributes on the declarator. 3369cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // We don't want to do this for ObjC parameters because we're going 3370cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall // to apply them to the actual parameter declaration. 3371cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall if (D.getContext() != Declarator::ObjCParameterContext) 3372cdda47faab5c2c61c239491a1a091e071ed3e38eJohn McCall checkUnusedDeclAttributes(D); 3373e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 33744e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 3375402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 33766d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 3377402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 3378402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 3379b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return CreateParsedType(T, TInfo); 33805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 33815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3382e97179c675b341927807c718be215c8d1aab8acbDouglas GregorParsedType Sema::ActOnObjCInstanceType(SourceLocation Loc) { 3383e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor QualType T = Context.getObjCInstanceType(); 3384e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor TypeSourceInfo *TInfo = Context.getTrivialTypeSourceInfo(T, Loc); 3385e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor return CreateParsedType(T, TInfo); 3386e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor} 3387e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3388e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor 3389c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3390c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 3391c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 3392232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3393232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 3394c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 3395c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 33961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 3397c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 33980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 3399232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 340029e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "No type shall be qualified by 340129e3ef8df84da298e7553a84276af4909ff6e9ebPeter Collingbourne // qualifiers for two or more different address spaces." 3402232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 3403c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 3404e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3405c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3406232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 34071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3408020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // ISO/IEC TR 18037 S5.3 (amending C99 6.7.3): "A function type shall not be 3409020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne // qualified by an address-space qualifier." 3410020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne if (Type->isFunctionType()) { 3411020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_address_function_type); 3412020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne Attr.setInvalid(); 3413020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne return; 3414020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne } 3415020972d5d6dc1f3c49839cfbadcccf4cbefb2f4dPeter Collingbourne 3416232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 3417545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 3418f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3419e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3420c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3421232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3422545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *ASArgExpr = static_cast<Expr *>(Attr.getArg(0)); 3423232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 3424ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (ASArgExpr->isTypeDependent() || ASArgExpr->isValueDependent() || 3425ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 3426dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_space_not_int) 3427dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner << ASArgExpr->getSourceRange(); 3428e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3429c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 3430232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 3431232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 3432efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 3433efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 3434efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 3435efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 3436efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 3437e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3438efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3439efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3440efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 3441efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3442efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 34430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 3444efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 3445efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 34460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall << Qualifiers::MaxAddressSpace << ASArgExpr->getSourceRange(); 3447e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 3448efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 3449efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 3450efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 34511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 3452f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 3453c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 3454c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 3455d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// Does this type have a "direct" ownership qualifier? That is, 3456d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// is it written like "__strong id", as opposed to something like 3457d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall/// "typeof(foo)", where that happens to be strong? 3458d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCallstatic bool hasDirectOwnershipQualifier(QualType type) { 3459d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Fast path: no qualifier at all. 3460d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall assert(type.getQualifiers().hasObjCLifetime()); 3461d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3462d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall while (true) { 3463d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // __strong id 3464d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (const AttributedType *attr = dyn_cast<AttributedType>(type)) { 3465d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (attr->getAttrKind() == AttributedType::attr_objc_ownership) 3466d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 3467d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3468d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = attr->getModifiedType(); 3469d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3470d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // X *__strong (...) 3471d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } else if (const ParenType *paren = dyn_cast<ParenType>(type)) { 3472d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = paren->getInnerType(); 347391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3474d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // That's it for things we want to complain about. In particular, 3475d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // we do not want to look through typedefs, typeof(expr), 3476d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // typeof(type), or any other way that the type is somehow 3477d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // abstracted. 3478d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } else { 347991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3480d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return false; 3481d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3482d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3483d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall} 3484d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3485b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis/// handleObjCOwnershipTypeAttr - Process an objc_ownership 3486f85e193739c953358c865005855253af4f68a497John McCall/// attribute on the specified type. 3487f85e193739c953358c865005855253af4f68a497John McCall/// 3488f85e193739c953358c865005855253af4f68a497John McCall/// Returns 'true' if the attribute was handled. 3489b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidisstatic bool handleObjCOwnershipTypeAttr(TypeProcessingState &state, 3490f85e193739c953358c865005855253af4f68a497John McCall AttributeList &attr, 3491f85e193739c953358c865005855253af4f68a497John McCall QualType &type) { 3492e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis bool NonObjCPointer = false; 3493e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 3494e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (!type->isDependentType()) { 3495e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (const PointerType *ptr = type->getAs<PointerType>()) { 3496e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis QualType pointee = ptr->getPointeeType(); 3497e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (pointee->isObjCRetainableType() || pointee->isPointerType()) 3498e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 3499e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // It is important not to lose the source info that there was an attribute 3500e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // applied to non-objc pointer. We will create an attributed type but 3501e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis // its type will be the same as the original type. 3502e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis NonObjCPointer = true; 3503e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } else if (!type->isObjCRetainableType()) { 3504e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis return false; 3505e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3506e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3507f85e193739c953358c865005855253af4f68a497John McCall 3508f85e193739c953358c865005855253af4f68a497John McCall Sema &S = state.getSema(); 3509440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis SourceLocation AttrLoc = attr.getLoc(); 3510440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isMacroID()) 3511440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis AttrLoc = S.getSourceManager().getImmediateExpansionRange(AttrLoc).first; 3512f85e193739c953358c865005855253af4f68a497John McCall 3513f85e193739c953358c865005855253af4f68a497John McCall if (!attr.getParameterName()) { 3514440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_attribute_argument_n_not_string) 3515b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis << "objc_ownership" << 1; 3516f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3517f85e193739c953358c865005855253af4f68a497John McCall return true; 3518f85e193739c953358c865005855253af4f68a497John McCall } 3519f85e193739c953358c865005855253af4f68a497John McCall 3520d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Consume lifetime attributes without further comment outside of 3521d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // ARC mode. 35224e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().ObjCAutoRefCount) 3523d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 3524d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3525f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime; 3526f85e193739c953358c865005855253af4f68a497John McCall if (attr.getParameterName()->isStr("none")) 3527f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_ExplicitNone; 3528f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("strong")) 3529f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Strong; 3530f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("weak")) 3531f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Weak; 3532f85e193739c953358c865005855253af4f68a497John McCall else if (attr.getParameterName()->isStr("autoreleasing")) 3533f85e193739c953358c865005855253af4f68a497John McCall lifetime = Qualifiers::OCL_Autoreleasing; 3534f85e193739c953358c865005855253af4f68a497John McCall else { 3535440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::warn_attribute_type_not_supported) 3536b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis << "objc_ownership" << attr.getParameterName(); 3537f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3538f85e193739c953358c865005855253af4f68a497John McCall return true; 3539f85e193739c953358c865005855253af4f68a497John McCall } 3540f85e193739c953358c865005855253af4f68a497John McCall 3541d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall SplitQualType underlyingType = type.split(); 3542d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3543d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Check for redundant/conflicting ownership qualifiers. 3544d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (Qualifiers::ObjCLifetime previousLifetime 3545d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall = type.getQualifiers().getObjCLifetime()) { 3546d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // If it's written directly, that's an error. 3547d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (hasDirectOwnershipQualifier(type)) { 3548d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall S.Diag(AttrLoc, diag::err_attr_objc_ownership_redundant) 3549d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall << type; 3550d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall return true; 3551d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3552d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3553d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // Otherwise, if the qualifiers actually conflict, pull sugar off 3554d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // until we reach a type that is directly qualified. 3555d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall if (previousLifetime != lifetime) { 3556d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // This should always terminate: the canonical type is 3557d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall // qualified, so some bit of sugar must be hiding it. 3558d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall while (!underlyingType.Quals.hasObjCLifetime()) { 3559d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType = underlyingType.getSingleStepDesugaredType(); 3560d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3561d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType.Quals.removeObjCLifetime(); 3562d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3563d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall } 3564d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall 3565d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall underlyingType.Quals.addObjCLifetime(lifetime); 3566f85e193739c953358c865005855253af4f68a497John McCall 3567e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (NonObjCPointer) { 3568e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis StringRef name = attr.getName()->getName(); 3569e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis switch (lifetime) { 3570e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_None: 3571e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_ExplicitNone: 3572e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis break; 3573e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Strong: name = "__strong"; break; 3574e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Weak: name = "__weak"; break; 3575e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis case Qualifiers::OCL_Autoreleasing: name = "__autoreleasing"; break; 3576e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3577e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis S.Diag(AttrLoc, diag::warn_objc_object_attribute_wrong_type) 3578e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis << name << type; 3579e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis } 3580e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis 3581f85e193739c953358c865005855253af4f68a497John McCall QualType origType = type; 3582e71202efccdead44c8a3d4a2296d866d0e89799bArgyrios Kyrtzidis if (!NonObjCPointer) 3583d85bf9dd23920f5400bb8d6a41c8ebb1aecfdee9John McCall type = S.Context.getQualifiedType(underlyingType); 3584f85e193739c953358c865005855253af4f68a497John McCall 3585f85e193739c953358c865005855253af4f68a497John McCall // If we have a valid source location for the attribute, use an 3586f85e193739c953358c865005855253af4f68a497John McCall // AttributedType instead. 3587440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis if (AttrLoc.isValid()) 3588b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis type = S.Context.getAttributedType(AttributedType::attr_objc_ownership, 3589f85e193739c953358c865005855253af4f68a497John McCall origType, type); 3590f85e193739c953358c865005855253af4f68a497John McCall 35919f084a3166b684573ba49df28fc5792bc37d92e1John McCall // Forbid __weak if the runtime doesn't support it. 3592f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_Weak && 35930a7dd788dbef975f35f273c7ab913f480f7edd60John McCall !S.getLangOpts().ObjCARCWeak && !NonObjCPointer) { 3594f85e193739c953358c865005855253af4f68a497John McCall 3595f85e193739c953358c865005855253af4f68a497John McCall // Actually, delay this until we know what we're parsing. 3596f85e193739c953358c865005855253af4f68a497John McCall if (S.DelayedDiagnostics.shouldDelayDiagnostics()) { 3597f85e193739c953358c865005855253af4f68a497John McCall S.DelayedDiagnostics.add( 3598440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis sema::DelayedDiagnostic::makeForbiddenType( 3599440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.getSourceManager().getExpansionLoc(AttrLoc), 3600f85e193739c953358c865005855253af4f68a497John McCall diag::err_arc_weak_no_runtime, type, /*ignored*/ 0)); 3601f85e193739c953358c865005855253af4f68a497John McCall } else { 3602440ec2ebbe2e7aa2a5f733a41cf845d354d16e23Argyrios Kyrtzidis S.Diag(AttrLoc, diag::err_arc_weak_no_runtime); 3603f85e193739c953358c865005855253af4f68a497John McCall } 3604f85e193739c953358c865005855253af4f68a497John McCall 3605f85e193739c953358c865005855253af4f68a497John McCall attr.setInvalid(); 3606f85e193739c953358c865005855253af4f68a497John McCall return true; 3607f85e193739c953358c865005855253af4f68a497John McCall } 360891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 360991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // Forbid __weak for class objects marked as 3610742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian // objc_arc_weak_reference_unavailable 3611742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (lifetime == Qualifiers::OCL_Weak) { 3612742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian QualType T = type; 3613742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian while (const PointerType *ptr = T->getAs<PointerType>()) 3614742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian T = ptr->getPointeeType(); 3615742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (const ObjCObjectPointerType *ObjT = T->getAs<ObjCObjectPointerType>()) { 36164e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith if (ObjCInterfaceDecl *Class = ObjT->getInterfaceDecl()) { 36174e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith if (Class->isArcWeakrefUnavailable()) { 36184e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith S.Diag(AttrLoc, diag::err_arc_unsupported_weak_class); 36194e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith S.Diag(ObjT->getInterfaceDecl()->getLocation(), 36204e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith diag::note_class_declared); 36214e90bc39f052ea0046d40aebbb42732ad1f21f50Richard Smith } 3622742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 3623742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 3624742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 362591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 3626f85e193739c953358c865005855253af4f68a497John McCall return true; 3627f85e193739c953358c865005855253af4f68a497John McCall} 3628f85e193739c953358c865005855253af4f68a497John McCall 3629711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// handleObjCGCTypeAttr - Process the __attribute__((objc_gc)) type 3630711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// attribute on the specified type. Returns true to indicate that 3631711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// the attribute was handled, false to indicate that the type does 3632711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// not permit the attribute. 3633711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleObjCGCTypeAttr(TypeProcessingState &state, 3634711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 3635711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 3636711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 3637711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3638711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this isn't some kind of pointer. 3639711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!type->isPointerType() && 3640711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isObjCObjectPointerType() && 3641711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !type->isBlockPointerType()) 3642711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3643711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3644711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (type.getObjCGCAttr() != Qualifiers::GCNone) { 3645711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_multiple_objc_gc); 3646711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3647711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3648d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 36491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3650d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 3651711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!attr.getParameterName()) { 3652711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 3653ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian << "objc_gc" << 1; 3654711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3655711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3656ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 36570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 3658711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 3659711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3660711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3661711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3662d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 3663711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getParameterName()->isStr("weak")) 36640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 3665711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (attr.getParameterName()->isStr("strong")) 36660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 3667d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 3668711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_type_not_supported) 3669711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << "objc_gc" << attr.getParameterName(); 3670711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3671711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3672d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 36731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 367414aa2175416f79ef17811282afbf425f87d54ebfJohn McCall QualType origType = type; 367514aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getObjCGCQualType(origType, GCAttr); 367614aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 367714aa2175416f79ef17811282afbf425f87d54ebfJohn McCall // Make an attributed type to preserve the source information. 367814aa2175416f79ef17811282afbf425f87d54ebfJohn McCall if (attr.getLoc().isValid()) 367914aa2175416f79ef17811282afbf425f87d54ebfJohn McCall type = S.Context.getAttributedType(AttributedType::attr_objc_gc, 368014aa2175416f79ef17811282afbf425f87d54ebfJohn McCall origType, type); 368114aa2175416f79ef17811282afbf425f87d54ebfJohn McCall 3682711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3683d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 3684d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 3685e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCallnamespace { 3686e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// A helper class to unwrap a type down to a function for the 3687e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// purposes of applying attributes there. 3688e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// 3689e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// Use: 3690e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// FunctionTypeUnwrapper unwrapped(SemaRef, T); 3691e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// if (unwrapped.isFunctionType()) { 3692e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// const FunctionType *fn = unwrapped.get(); 3693e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// // change fn somehow 3694e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// T = unwrapped.wrap(fn); 3695e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall /// } 3696e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall struct FunctionTypeUnwrapper { 3697e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall enum WrapKind { 3698e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Desugar, 3699e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Parens, 3700e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Pointer, 3701e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall BlockPointer, 3702e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Reference, 3703e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall MemberPointer 3704e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 3705e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3706e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType Original; 3707e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *Fn; 37085f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned char /*WrapKind*/, 8> Stack; 3709e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3710e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall FunctionTypeUnwrapper(Sema &S, QualType T) : Original(T) { 3711e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall while (true) { 3712e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *Ty = T.getTypePtr(); 3713e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<FunctionType>(Ty)) { 3714e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = cast<FunctionType>(Ty); 3715e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 3716e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ParenType>(Ty)) { 3717e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ParenType>(Ty)->getInnerType(); 3718e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Parens); 3719e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<PointerType>(Ty)) { 3720e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<PointerType>(Ty)->getPointeeType(); 3721e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Pointer); 3722e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<BlockPointerType>(Ty)) { 3723e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<BlockPointerType>(Ty)->getPointeeType(); 3724e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(BlockPointer); 3725e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<MemberPointerType>(Ty)) { 3726e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<MemberPointerType>(Ty)->getPointeeType(); 3727e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(MemberPointer); 3728e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else if (isa<ReferenceType>(Ty)) { 3729e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = cast<ReferenceType>(Ty)->getPointeeType(); 3730e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Reference); 3731e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } else { 3732e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const Type *DTy = Ty->getUnqualifiedDesugaredType(); 3733e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (Ty == DTy) { 3734e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = 0; 3735e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return; 3736e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3737e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3738e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall T = QualType(DTy, 0); 3739e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Stack.push_back(Desugar); 3740e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3741e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3742e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3743e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3744e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall bool isFunctionType() const { return (Fn != 0); } 3745e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const FunctionType *get() const { return Fn; } 3746e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3747e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(Sema &S, const FunctionType *New) { 3748e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // If T wasn't modified from the unwrapped type, do nothing. 3749e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (New == get()) return Original; 3750e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3751e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall Fn = New; 3752e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(S.Context, Original, 0); 3753e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3754e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3755e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall private: 3756e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, QualType Old, unsigned I) { 3757e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) 3758e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getQualifiedType(Fn, Old.getQualifiers()); 3759e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3760e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Build up the inner type, applying the qualifiers from the old 3761e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // type to the new type. 3762e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall SplitQualType SplitOld = Old.split(); 3763e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3764e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // As a special case, tail-recurse if there are no qualifiers. 3765200fa53fd420aa8369586f569dbece04930ad6a3John McCall if (SplitOld.Quals.empty()) 3766200fa53fd420aa8369586f569dbece04930ad6a3John McCall return wrap(C, SplitOld.Ty, I); 3767200fa53fd420aa8369586f569dbece04930ad6a3John McCall return C.getQualifiedType(wrap(C, SplitOld.Ty, I), SplitOld.Quals); 3768e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3769e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3770e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType wrap(ASTContext &C, const Type *Old, unsigned I) { 3771e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (I == Stack.size()) return QualType(Fn, 0); 3772e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3773e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall switch (static_cast<WrapKind>(Stack[I++])) { 3774e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Desugar: 3775e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // This is the point at which we potentially lose source 3776e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // information. 3777e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return wrap(C, Old->getUnqualifiedDesugaredType(), I); 3778e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3779e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Parens: { 3780e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<ParenType>(Old)->getInnerType(), I); 3781e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getParenType(New); 3782e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3783e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3784e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Pointer: { 3785e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<PointerType>(Old)->getPointeeType(), I); 3786e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getPointerType(New); 3787e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3788e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3789e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case BlockPointer: { 3790e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, cast<BlockPointerType>(Old)->getPointeeType(),I); 3791e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getBlockPointerType(New); 3792e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3793e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3794e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case MemberPointer: { 3795e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const MemberPointerType *OldMPT = cast<MemberPointerType>(Old); 3796e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldMPT->getPointeeType(), I); 3797e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getMemberPointerType(New, OldMPT->getClass()); 3798e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3799e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3800e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall case Reference: { 3801e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall const ReferenceType *OldRef = cast<ReferenceType>(Old); 3802e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall QualType New = wrap(C, OldRef->getPointeeType(), I); 3803e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall if (isa<LValueReferenceType>(OldRef)) 3804e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getLValueReferenceType(New, OldRef->isSpelledAsLValue()); 3805e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall else 3806e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall return C.getRValueReferenceType(New); 3807e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3808e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3809e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3810e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall llvm_unreachable("unknown wrapping kind"); 3811e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall } 3812e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall }; 3813e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall} 3814e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3815711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Process an individual function attribute. Returns true to 3816711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// indicate that the attribute was handled, false if it wasn't. 3817711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool handleFunctionTypeAttr(TypeProcessingState &state, 3818711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr, 3819711c52bb20d0c69063b52a99826fb7d2835501f1John McCall QualType &type) { 3820711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Sema &S = state.getSema(); 3821e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3822711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionTypeUnwrapper unwrapped(S, type); 38232455636163fdd18581d7fdae816433f886d88213Mike Stump 38248e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_NoReturn) { 3825711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) 382604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 3827e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall 3828e6a365d772a6b455f1e23ac9ae5f40d65a55a18cJohn McCall // Delay if this is not a function type. 3829711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 3830711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3831425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 3832425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 3833711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withNoReturn(true); 3834711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3835711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3836711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3837425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 3838f85e193739c953358c865005855253af4f68a497John McCall // ns_returns_retained is not always a type attribute, but if we got 3839f85e193739c953358c865005855253af4f68a497John McCall // here, we're treating it as one right now. 38408e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_NSReturnsRetained) { 38414e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(S.getLangOpts().ObjCAutoRefCount && 3842f85e193739c953358c865005855253af4f68a497John McCall "ns_returns_retained treated as type attribute in non-ARC"); 3843f85e193739c953358c865005855253af4f68a497John McCall if (attr.getNumArgs()) return true; 3844f85e193739c953358c865005855253af4f68a497John McCall 3845f85e193739c953358c865005855253af4f68a497John McCall // Delay if this is not a function type. 3846f85e193739c953358c865005855253af4f68a497John McCall if (!unwrapped.isFunctionType()) 3847f85e193739c953358c865005855253af4f68a497John McCall return false; 3848f85e193739c953358c865005855253af4f68a497John McCall 3849f85e193739c953358c865005855253af4f68a497John McCall FunctionType::ExtInfo EI 3850f85e193739c953358c865005855253af4f68a497John McCall = unwrapped.get()->getExtInfo().withProducesResult(true); 3851f85e193739c953358c865005855253af4f68a497John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3852f85e193739c953358c865005855253af4f68a497John McCall return true; 3853f85e193739c953358c865005855253af4f68a497John McCall } 3854f85e193739c953358c865005855253af4f68a497John McCall 38558e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (attr.getKind() == AttributeList::AT_Regparm) { 3856711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned value; 3857711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, value)) 3858711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 38591e030eb1194763b42c1752723be23b1515f48981John McCall 3860711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Delay if this is not a function type. 3861711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) 3862008df5dce3938456ae7ea2e7ab3b2d12391ebf3eJohn McCall return false; 38631e030eb1194763b42c1752723be23b1515f48981John McCall 3864ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Diagnose regparm with fastcall. 3865ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis const FunctionType *fn = unwrapped.get(); 3866ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis CallingConv CC = fn->getCallConv(); 3867ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis if (CC == CC_X86FastCall) { 3868ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 3869ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC) 3870ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm"; 3871ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 3872ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 3873ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 3874ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 387591cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier FunctionType::ExtInfo EI = 3876711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unwrapped.get()->getExtInfo().withRegParm(value); 3877711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3878711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3879425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 3880425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 388104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 3882711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 3883711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 3884711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3885f82b4e85b1219295cad4b5851b035575bc293010John McCall 388604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if the type didn't work out to a function. 3887711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!unwrapped.isFunctionType()) return false; 388804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 3889711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionType *fn = unwrapped.get(); 3890711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CCOld = fn->getCallConv(); 3891064f7db69def9299f5f4d9a32114afc10b6a6420Charles Davis if (S.Context.getCanonicalCallConv(CC) == 3892e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Context.getCanonicalCallConv(CCOld)) { 3893ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis FunctionType::ExtInfo EI= unwrapped.get()->getExtInfo().withCallingConv(CC); 3894ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3895711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3896e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 389704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 38988e68f1c8a2919ea83c2053731d6011074f1062e1Roman Divacky if (CCOld != (S.LangOpts.MRTD ? CC_X86StdCall : CC_Default)) { 389904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Should we diagnose reapplications of the same convention? 3900711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 390104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC) 390204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CCOld); 3903711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3904711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 390504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 390604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 390704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 390804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 3909711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isa<FunctionNoProtoType>(fn)) { 3910711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_knr) 391104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 3912711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3913711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 391404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 391504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 3916711c52bb20d0c69063b52a99826fb7d2835501f1John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(fn); 391704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 3918711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::err_cconv_varargs) 391904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 3920711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3921711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 392204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 3923ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis 3924ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis // Also diagnose fastcall with regparm. 3925a49218e17bcbb1acde0245773173e2c0c42f4f19Eli Friedman if (fn->getHasRegParm()) { 3926ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis S.Diag(attr.getLoc(), diag::err_attributes_are_not_compatible) 3927ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << "regparm" 3928ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis << FunctionType::getNameForCallConv(CC); 3929ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis attr.setInvalid(); 3930ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis return true; 3931ce95566b36a4ff16e90507633dad8b7a76572999Argyrios Kyrtzidis } 393204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 3933f82b4e85b1219295cad4b5851b035575bc293010John McCall 3934711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FunctionType::ExtInfo EI = unwrapped.get()->getExtInfo().withCallingConv(CC); 3935711c52bb20d0c69063b52a99826fb7d2835501f1John McCall type = unwrapped.wrap(S, S.Context.adjustFunctionType(unwrapped.get(), EI)); 3936711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3937f82b4e85b1219295cad4b5851b035575bc293010John McCall} 3938f82b4e85b1219295cad4b5851b035575bc293010John McCall 3939207f4d8543529221932af82836016a2ef066c917Peter Collingbourne/// Handle OpenCL image access qualifiers: read_only, write_only, read_write 3940207f4d8543529221932af82836016a2ef066c917Peter Collingbournestatic void HandleOpenCLImageAccessAttribute(QualType& CurType, 3941207f4d8543529221932af82836016a2ef066c917Peter Collingbourne const AttributeList &Attr, 3942207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Sema &S) { 3943207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Check the attribute arguments. 3944207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (Attr.getNumArgs() != 1) { 3945207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3946207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3947207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 3948207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3949207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 3950207f4d8543529221932af82836016a2ef066c917Peter Collingbourne llvm::APSInt arg(32); 3951207f4d8543529221932af82836016a2ef066c917Peter Collingbourne if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 3952207f4d8543529221932af82836016a2ef066c917Peter Collingbourne !sizeExpr->isIntegerConstantExpr(arg, S.Context)) { 3953207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 3954207f4d8543529221932af82836016a2ef066c917Peter Collingbourne << "opencl_image_access" << sizeExpr->getSourceRange(); 3955207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3956207f4d8543529221932af82836016a2ef066c917Peter Collingbourne return; 3957207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3958207f4d8543529221932af82836016a2ef066c917Peter Collingbourne unsigned iarg = static_cast<unsigned>(arg.getZExtValue()); 3959207f4d8543529221932af82836016a2ef066c917Peter Collingbourne switch (iarg) { 3960207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_only: 3961207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_write_only: 3962207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case CLIA_read_write: 3963207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 3964207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 3965207f4d8543529221932af82836016a2ef066c917Peter Collingbourne default: 3966207f4d8543529221932af82836016a2ef066c917Peter Collingbourne // Implemented in a separate patch 3967207f4d8543529221932af82836016a2ef066c917Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 3968207f4d8543529221932af82836016a2ef066c917Peter Collingbourne << sizeExpr->getSourceRange(); 3969207f4d8543529221932af82836016a2ef066c917Peter Collingbourne Attr.setInvalid(); 3970207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 3971207f4d8543529221932af82836016a2ef066c917Peter Collingbourne } 3972207f4d8543529221932af82836016a2ef066c917Peter Collingbourne} 3973207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 39746e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 39756e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 39766e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 39776e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 39786e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 39796e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 39806e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 3981788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, 3982788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Sema &S) { 398356affbcaeff9a01caa70b2a237f7e6ac31c8ded6Bob Wilson // Check the attribute arguments. 39846e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 39856e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3986e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 39876e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 39886e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 39896e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 39906e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 3991ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 3992ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 39936e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 39946e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << "vector_size" << sizeExpr->getSourceRange(); 3995e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 39966e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 39976e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 39986e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the base type must be integer or float, and can't already be a vector. 3999f60946222721d9ba3c059563935c17b84703187aDouglas Gregor if (!CurType->isIntegerType() && !CurType->isRealFloatingType()) { 40006e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 4001e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 40026e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 40036e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 40046e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 40056e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 40066e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 40076e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 40086e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 40096e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 40106e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 40116e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 4012e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 40136e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 40146e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 40156e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 40166e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 40176e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 4018e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 40196e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 40206e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 40216e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 40226e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 40236e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 4024788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, 4025e86d78cf4754a6aef2cf9a33d847aa15338e276fBob Wilson VectorType::GenericVector); 40266e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 40276e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 40284ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// \brief Process the OpenCL-like ext_vector_type attribute when it occurs on 40294ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor/// a type. 403091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosierstatic void HandleExtVectorTypeAttr(QualType &CurType, 403191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier const AttributeList &Attr, 40324ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Sema &S) { 40334ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor Expr *sizeExpr; 403491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 40354ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Special case where the argument is a template id. 40364ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Attr.getParameterName()) { 40374ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CXXScopeSpec SS; 4038e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 40394ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor UnqualifiedId id; 40404ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 4041e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 4042e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ExprResult Size = S.ActOnIdExpression(S.getCurScope(), SS, TemplateKWLoc, 4043e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara id, false, false); 40444ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 40454ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 404691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 40474ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 40484ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } else { 40494ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // check the attribute arguments. 40504ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Attr.getNumArgs() != 1) { 40514ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 40524ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 40534ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 40544ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Attr.getArg(0); 40554ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor } 405691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 40574ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor // Create the vector type. 40584ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor QualType T = S.BuildExtVectorType(CurType, sizeExpr, Attr.getLoc()); 40594ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (!T.isNull()) 40604ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor CurType = T; 40614ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor} 40624ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 40634211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// HandleNeonVectorTypeAttr - The "neon_vector_type" and 40644211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// "neon_polyvector_type" attributes are used to create vector types that 40654211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// are mangled according to ARM's ABI. Otherwise, these types are identical 40664211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// to those created with the "vector_size" attribute. Unlike "vector_size" 40674211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// the argument to these Neon attributes is the number of vector elements, 40684211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// not the vector size in bytes. The vector width and element type must 40694211bb68cff1f310be280f66a59520548ef99d8fBob Wilson/// match one of the standard Neon vector types. 40704211bb68cff1f310be280f66a59520548ef99d8fBob Wilsonstatic void HandleNeonVectorTypeAttr(QualType& CurType, 40714211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const AttributeList &Attr, Sema &S, 40724211bb68cff1f310be280f66a59520548ef99d8fBob Wilson VectorType::VectorKind VecKind, 40734211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const char *AttrName) { 40744211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Check the attribute arguments. 40754211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (Attr.getNumArgs() != 1) { 40764211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 40774211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 40784211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 40794211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 40804211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The number of elements must be an ICE. 40814211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Expr *numEltsExpr = static_cast<Expr *>(Attr.getArg(0)); 40824211bb68cff1f310be280f66a59520548ef99d8fBob Wilson llvm::APSInt numEltsInt(32); 40834211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (numEltsExpr->isTypeDependent() || numEltsExpr->isValueDependent() || 40844211bb68cff1f310be280f66a59520548ef99d8fBob Wilson !numEltsExpr->isIntegerConstantExpr(numEltsInt, S.Context)) { 40854211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 40864211bb68cff1f310be280f66a59520548ef99d8fBob Wilson << AttrName << numEltsExpr->getSourceRange(); 40874211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 40884211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 40894211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 40904211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // Only certain element types are supported for Neon vectors. 40914211bb68cff1f310be280f66a59520548ef99d8fBob Wilson const BuiltinType* BTy = CurType->getAs<BuiltinType>(); 40924211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (!BTy || 40934211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (VecKind == VectorType::NeonPolyVector && 40944211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::SChar && 40954211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short) || 40964211bb68cff1f310be280f66a59520548ef99d8fBob Wilson (BTy->getKind() != BuiltinType::SChar && 40974211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UChar && 40984211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Short && 40994211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UShort && 41004211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Int && 41014211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::UInt && 41024211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::LongLong && 41034211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::ULongLong && 41044211bb68cff1f310be280f66a59520548ef99d8fBob Wilson BTy->getKind() != BuiltinType::Float)) { 41054211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) <<CurType; 41064211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 41074211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 41084211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 41094211bb68cff1f310be280f66a59520548ef99d8fBob Wilson // The total size of the vector must be 64 or 128 bits. 41104211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 41114211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned numElts = static_cast<unsigned>(numEltsInt.getZExtValue()); 41124211bb68cff1f310be280f66a59520548ef99d8fBob Wilson unsigned vecSize = typeSize * numElts; 41134211bb68cff1f310be280f66a59520548ef99d8fBob Wilson if (vecSize != 64 && vecSize != 128) { 41144211bb68cff1f310be280f66a59520548ef99d8fBob Wilson S.Diag(Attr.getLoc(), diag::err_attribute_bad_neon_vector_size) << CurType; 41154211bb68cff1f310be280f66a59520548ef99d8fBob Wilson Attr.setInvalid(); 41164211bb68cff1f310be280f66a59520548ef99d8fBob Wilson return; 41174211bb68cff1f310be280f66a59520548ef99d8fBob Wilson } 41184211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 41194211bb68cff1f310be280f66a59520548ef99d8fBob Wilson CurType = S.Context.getVectorType(CurType, numElts, VecKind); 41204211bb68cff1f310be280f66a59520548ef99d8fBob Wilson} 41214211bb68cff1f310be280f66a59520548ef99d8fBob Wilson 4122711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void processTypeAttrs(TypeProcessingState &state, QualType &type, 4123711c52bb20d0c69063b52a99826fb7d2835501f1John McCall bool isDeclSpec, AttributeList *attrs) { 4124c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 4125c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 4126c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 4127c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 4128711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4129711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList *next; 4130711c52bb20d0c69063b52a99826fb7d2835501f1John McCall do { 4131711c52bb20d0c69063b52a99826fb7d2835501f1John McCall AttributeList &attr = *attrs; 4132711c52bb20d0c69063b52a99826fb7d2835501f1John McCall next = attr.getNext(); 4133711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4134e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Skip attributes that were marked to be invalid. 4135711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 4136e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara continue; 4137e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 4138b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 4139b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 4140711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 4141c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner default: break; 414204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 41438e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_MayAlias: 4144682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // FIXME: This attribute needs to actually be handled, but if we ignore 4145682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth // it it breaks large amounts of Linux software. 4146682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth attr.setUsedAsTypeAttr(); 4147682eae243ae3d96fe3dc302091034e08c414db10Chandler Carruth break; 41488e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_AddressSpace: 4149711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleAddressSpaceTypeAttribute(type, attr, state.getSema()); 4150e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4151c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 4152711c52bb20d0c69063b52a99826fb7d2835501f1John McCall OBJC_POINTER_TYPE_ATTRS_CASELIST: 4153711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!handleObjCPointerTypeAttr(state, attr, type)) 4154711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeObjCPointerTypeAttr(state, attr, type); 4155e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4156d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 41578e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_VectorSize: 4158711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleVectorSizeAttr(type, attr, state.getSema()); 4159e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4160f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 41618e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ExtVectorType: 41624ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (state.getDeclarator().getDeclSpec().getStorageClassSpec() 41634ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor != DeclSpec::SCS_typedef) 41644ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor HandleExtVectorTypeAttr(type, attr, state.getSema()); 4165e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 41664ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor break; 41678e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NeonVectorType: 4168711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 4169711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonVector, "neon_vector_type"); 4170e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 41714211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 41728e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NeonPolyVectorType: 4173711c52bb20d0c69063b52a99826fb7d2835501f1John McCall HandleNeonVectorTypeAttr(type, attr, state.getSema(), 4174711c52bb20d0c69063b52a99826fb7d2835501f1John McCall VectorType::NeonPolyVector, 41754211bb68cff1f310be280f66a59520548ef99d8fBob Wilson "neon_polyvector_type"); 4176e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 41774211bb68cff1f310be280f66a59520548ef99d8fBob Wilson break; 41788e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_OpenCLImageAccess: 4179207f4d8543529221932af82836016a2ef066c917Peter Collingbourne HandleOpenCLImageAccessAttribute(type, attr, state.getSema()); 4180e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4181207f4d8543529221932af82836016a2ef066c917Peter Collingbourne break; 4182207f4d8543529221932af82836016a2ef066c917Peter Collingbourne 41838e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Win64: 41848e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Ptr32: 41858e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Ptr64: 4186c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall // FIXME: don't ignore these 4187c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall attr.setUsedAsTypeAttr(); 4188c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall break; 4189c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall 41908e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsRetained: 41914e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!state.getSema().getLangOpts().ObjCAutoRefCount) 419291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier break; 4193f85e193739c953358c865005855253af4f68a497John McCall // fallthrough into the function attrs 4194f85e193739c953358c865005855253af4f68a497John McCall 4195711c52bb20d0c69063b52a99826fb7d2835501f1John McCall FUNCTION_TYPE_ATTRS_CASELIST: 4196e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall attr.setUsedAsTypeAttr(); 4197e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 4198711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Never process function type attributes as part of the 4199711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // declaration-specifiers. 4200711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (isDeclSpec) 4201711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttrFromDeclSpec(state, attr, type); 4202711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 4203711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Otherwise, handle the possible delays. 4204711c52bb20d0c69063b52a99826fb7d2835501f1John McCall else if (!handleFunctionTypeAttr(state, attr, type)) 4205711c52bb20d0c69063b52a99826fb7d2835501f1John McCall distributeFunctionTypeAttr(state, attr, type); 42066e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 4207c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 4208711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } while ((attrs = next)); 4209232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 4210232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 4211e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \brief Ensure that the type of the given expression is complete. 4212e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4213e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// This routine checks whether the expression \p E has a complete type. If the 4214e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// expression refers to an instantiable construct, that instantiation is 4215e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// performed as needed to complete its type. Furthermore 4216e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// Sema::RequireCompleteType is called for the expression's type (or in the 4217e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// case of a reference type, the referred-to type). 4218e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4219e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \param E The expression whose type is required to be complete. 4220d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor/// \param Diagnoser The object that will emit a diagnostic if the type is 4221d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor/// incomplete. 4222e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// 4223e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// \returns \c true if the type of \p E is incomplete and diagnosed, \c false 4224e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth/// otherwise. 4225f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregorbool Sema::RequireCompleteExprType(Expr *E, TypeDiagnoser &Diagnoser){ 4226e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth QualType T = E->getType(); 4227e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4228e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Fast path the case where the type is already complete. 4229e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (!T->isIncompleteType()) 4230e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth return false; 4231e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4232e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Incomplete array types may be completed by the initializer attached to 4233e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // their definitions. For static data members of class templates we need to 4234e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // instantiate the definition to get this initializer and complete the type. 4235e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (T->isIncompleteArrayType()) { 4236e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 4237e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 4238e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (Var->isStaticDataMember() && 4239e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth Var->getInstantiatedFromStaticDataMember()) { 424091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 424136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MemberSpecializationInfo *MSInfo = Var->getMemberSpecializationInfo(); 424236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor assert(MSInfo && "Missing member specialization information?"); 424336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getTemplateSpecializationKind() 424436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor != TSK_ExplicitSpecialization) { 424536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // If we don't already have a point of instantiation, this is it. 424636f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (MSInfo->getPointOfInstantiation().isInvalid()) { 424736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor MSInfo->setPointOfInstantiation(E->getLocStart()); 424891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 424991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // This is a modification of an existing AST node. Notify 425036f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // listeners. 425136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (ASTMutationListener *L = getASTMutationListener()) 425236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor L->StaticDataMemberInstantiated(Var); 425336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 425491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 425536f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor InstantiateStaticDataMemberDefinition(E->getExprLoc(), Var); 425691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 425736f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // Update the type to the newly instantiated definition's type both 425836f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor // here and within the expression. 425936f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor if (VarDecl *Def = Var->getDefinition()) { 426036f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setDecl(Def); 426136f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor T = Def->getType(); 426236f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor DRE->setType(T); 426336f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor E->setType(T); 426436f255c324d37dd8e0e5ab2e026814e8396a05aaDouglas Gregor } 4265f15748a28c8443eef2924ef83689c358c661e9c5Douglas Gregor } 426691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4267e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // We still go on to try to complete the type independently, as it 4268e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // may also require instantiations or diagnostics if it remains 4269e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // incomplete. 4270e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4271e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4272e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4273e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth } 4274e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4275e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // FIXME: Are there other cases which require instantiating something other 4276e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // than the type to complete the type of an expression? 4277e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4278e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth // Look through reference types and complete the referred type. 4279e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth if (const ReferenceType *Ref = T->getAs<ReferenceType>()) 4280e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth T = Ref->getPointeeType(); 4281e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 4282d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteType(E->getExprLoc(), T, Diagnoser); 4283d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor} 4284d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 4285d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregornamespace { 4286f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor struct TypeDiagnoserDiag : Sema::TypeDiagnoser { 4287d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor unsigned DiagID; 428891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4289f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag(unsigned DiagID) 4290f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor : Sema::TypeDiagnoser(DiagID == 0), DiagID(DiagID) {} 429191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4292d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor virtual void diagnose(Sema &S, SourceLocation Loc, QualType T) { 4293d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (Suppressed) return; 4294d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor S.Diag(Loc, DiagID) << T; 4295d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor } 4296d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor }; 4297d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor} 4298d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 4299d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregorbool Sema::RequireCompleteExprType(Expr *E, unsigned DiagID) { 4300f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 4301d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteExprType(E, Diagnoser); 4302e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth} 4303e4d645cbe073042d8abc1a4eb600af4ff7a8dffbChandler Carruth 43041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 43054ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 43064ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 43074ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 430886447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 430986447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 431086447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 431186447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 431286447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 43134ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 43144ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 43154ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 43164ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 43174ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 43184ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 43194ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 43204ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 432191a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 4322f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoser &Diagnoser) { 4323573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 4324573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 4325690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 4326690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 4327690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 43281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 4329690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 4330690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 43314ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 4332d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor NamedDecl *Def = 0; 4333d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor if (!T->isIncompleteType(&Def)) { 4334d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // If we know about the definition but it is not visible, complain. 4335d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (!Diagnoser.Suppressed && Def && !LookupResult::isVisible(Def)) { 4336d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // Suppress this error outside of a SFINAE context if we've already 433791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // emitted the error once for this type. There's no usefulness in 4338d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // repeating the diagnostic. 4339d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // FIXME: Add a Fix-It that imports the corresponding module or includes 4340d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor // the header. 4341d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor if (isSFINAEContext() || HiddenDefinitions.insert(Def)) { 4342d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor Diag(Loc, diag::err_module_private_definition) << T; 4343d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor Diag(Def->getLocation(), diag::note_previous_definition); 4344d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 4345d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 434691cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 43474ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 4348d07cc36c71558b62889691184dd04655a33fd12aDouglas Gregor } 43494ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 4350bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const TagType *Tag = T->getAs<TagType>(); 4351bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan const ObjCInterfaceType *IFace = 0; 435291cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4353bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag) { 4354bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 4355bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->isInvalidDecl()) 4356bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 4357bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan 4358bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 4359bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (Tag->getDecl()->hasExternalLexicalStorage()) { 4360bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(Tag->getDecl()); 4361bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!Tag->isIncompleteType()) 4362bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 4363bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4364bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4365bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan else if ((IFace = T->getAs<ObjCInterfaceType>())) { 4366bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Avoid diagnosing invalid decls as incomplete. 4367bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->isInvalidDecl()) 4368bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return true; 436991cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4370bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan // Give the external AST source a chance to complete the type. 4371bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (IFace->getDecl()->hasExternalLexicalStorage()) { 4372bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan Context.getExternalSource()->CompleteType(IFace->getDecl()); 4373bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan if (!IFace->isIncompleteType()) 4374bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan return false; 4375bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 4376bd79119a50172db92ad3ce77ec3ac3c51e42a126Sean Callanan } 437791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4378d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 4379923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 4380923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 4381923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 4382e656b8397f05fd1b7c4a735372f79a52f4e32be5Douglas Gregor while (const ConstantArrayType *Array 4383e656b8397f05fd1b7c4a735372f79a52f4e32be5Douglas Gregor = Context.getAsConstantArrayType(MaybeTemplate)) 4384923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 4385923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 43862943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 4387d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 4388972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 4389972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 4390d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 4391d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor /*Complain=*/!Diagnoser.Suppressed); 43921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 4393d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 4394564f4c5664f552becbd05407611a92754c40e641Richard Smith CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass(); 4395564f4c5664f552becbd05407611a92754c40e641Richard Smith if (!Rec->isBeingDefined() && Pattern) { 4396564f4c5664f552becbd05407611a92754c40e641Richard Smith MemberSpecializationInfo *MSI = Rec->getMemberSpecializationInfo(); 4397564f4c5664f552becbd05407611a92754c40e641Richard Smith assert(MSI && "Missing member specialization information?"); 4398357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 4399564f4c5664f552becbd05407611a92754c40e641Richard Smith if (MSI->getTemplateSpecializationKind() != TSK_ExplicitSpecialization) 4400f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 4401f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 4402f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 4403d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor /*Complain=*/!Diagnoser.Suppressed); 4404d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 4405d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 4406d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 44072943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 4408d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (Diagnoser.Suppressed) 44095842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 4410d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor 44114ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 4412d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor Diagnoser.diagnose(*this, Loc, T); 441391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 44144ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 441501620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 44164ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 44171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 44184ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 44194ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 4420b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor << QualType(Tag, 0); 442191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4422b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor // If the Objective-C class was a forward declaration, produce a note. 4423b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor if (IFace && !IFace->getDecl()->isInvalidDecl()) 4424b3029960632ca8a3248e74770eda64d6c16f7246Douglas Gregor Diag(IFace->getDecl()->getLocation(), diag::note_forward_class); 44254ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 44264ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 44274ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 4428e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 4429fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 443091cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier unsigned DiagID) { 4431f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 4432d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor return RequireCompleteType(Loc, T, Diagnoser); 4433fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 4434fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 44356666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// \brief Get diagnostic %select index for tag kind for 44366666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// literal type diagnostic message. 44376666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// WARNING: Indexes apply to particular diagnostics only! 44386666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// 44396666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos/// \returns diagnostic %select index. 44406666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matosstatic unsigned getLiteralDiagFromTagKind(TagTypeKind Tag) 44416666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos{ 44426666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos switch (Tag) { 44436666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case TTK_Struct: return 0; 44446666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case TTK_Interface: return 1; 44456666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos case TTK_Class: return 2; 44466666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos default: assert("Invalid tag kind for literal type diagnostic!"); 44476666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos } 44486666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos return -1; 44496666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos} 44506666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos 44519f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @brief Ensure that the type T is a literal type. 44529f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 44539f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// This routine checks whether the type @p T is a literal type. If @p T is an 44549f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// incomplete type, an attempt is made to complete it. If @p T is a literal 44559f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// type, or @p AllowIncompleteType is true and @p T is an incomplete type, 44569f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// returns false. Otherwise, this routine issues the diagnostic @p PD (giving 44579f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// it the type @p T), along with notes explaining why the type is not a 44589f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// literal type, and returns true. 44599f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 44609f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param Loc The location in the source that the non-literal type 44619f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// diagnostic should refer to. 44629f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 44639f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @param T The type that this routine is examining for literalness. 44649f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 4465f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor/// @param Diagnoser Emits a diagnostic if T is not a literal type. 44669f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// 44679f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @returns @c true if @p T is not a literal type and a diagnostic was emitted, 44689f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith/// @c false otherwise. 44699f569cca2a4c5fb6026005434e27025b9e71309dRichard Smithbool Sema::RequireLiteralType(SourceLocation Loc, QualType T, 4470f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoser &Diagnoser) { 44719f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(!T->isDependentType() && "type should not be dependent"); 44729f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 4473ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman QualType ElemType = Context.getBaseElementType(T); 4474ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman RequireCompleteType(Loc, ElemType, 0); 4475ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman 447686c3ae46250cdcc57778c27826060779a92f3815Richard Smith if (T->isLiteralType()) 44779f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return false; 44789f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 4479f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor if (Diagnoser.Suppressed) 44809f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 44819f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 4482f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor Diagnoser.diagnose(*this, Loc, T); 44839f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 44849f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (T->isVariableArrayType()) 44859f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 44869f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 4487ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman const RecordType *RT = ElemType->getAs<RecordType>(); 44889f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!RT) 44899f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 44909f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 44919f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith const CXXRecordDecl *RD = cast<CXXRecordDecl>(RT->getDecl()); 44929f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 4493c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // A partially-defined class type can't be a literal type, because a literal 4494c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // class type must have a trivial destructor (which can't be checked until 4495c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith // the class definition is complete). 4496c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith if (!RD->isCompleteDefinition()) { 4497d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor RequireCompleteType(Loc, ElemType, diag::note_non_literal_incomplete, T); 4498ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman return true; 4499c799a6a5c884831c3c3ea57d30fbe4ab35709d49Richard Smith } 4500ee0653963537f6ea60f655856fb0c83d7d4010dbEli Friedman 45019f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If the class has virtual base classes, then it's not an aggregate, and 450286c3ae46250cdcc57778c27826060779a92f3815Richard Smith // cannot have any constexpr constructors or a trivial default constructor, 450386c3ae46250cdcc57778c27826060779a92f3815Richard Smith // so is non-literal. This is better to diagnose than the resulting absence 450486c3ae46250cdcc57778c27826060779a92f3815Richard Smith // of constexpr constructors. 45059f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (RD->getNumVBases()) { 45069f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_virtual_base) 45076666ed4ed2e2bc13da5ac5d0a4947019137d45beJoao Matos << getLiteralDiagFromTagKind(RD->getTagKind()) << RD->getNumVBases(); 45089f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->vbases_begin(), 45099f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->vbases_end(); I != E; ++I) 451096a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar Diag(I->getLocStart(), 45119f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_constexpr_virtual_base_here) << I->getSourceRange(); 451286c3ae46250cdcc57778c27826060779a92f3815Richard Smith } else if (!RD->isAggregate() && !RD->hasConstexprNonCopyMoveConstructor() && 451386c3ae46250cdcc57778c27826060779a92f3815Richard Smith !RD->hasTrivialDefaultConstructor()) { 45149f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(RD->getLocation(), diag::note_non_literal_no_constexpr_ctors) << RD; 45159f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (RD->hasNonLiteralTypeFieldsOrBases()) { 45169f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::base_class_const_iterator I = RD->bases_begin(), 45179f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->bases_end(); I != E; ++I) { 45189f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!I->getType()->isLiteralType()) { 451996a0014f9b963d8a987f1cccd48808a47f9c6331Daniel Dunbar Diag(I->getLocStart(), 45209f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_base_class) 45219f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith << RD << I->getType() << I->getSourceRange(); 45229f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 45239f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 45249f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 45259f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith for (CXXRecordDecl::field_iterator I = RD->field_begin(), 45269f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith E = RD->field_end(); I != E; ++I) { 4527262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie if (!I->getType()->isLiteralType() || 4528262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie I->getType().isVolatileQualified()) { 4529262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie Diag(I->getLocation(), diag::note_non_literal_field) 4530581deb3da481053c4993c7600f97acf7768caac5David Blaikie << RD << *I << I->getType() 4531262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie << I->getType().isVolatileQualified(); 45329f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 45339f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 45349f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 45359f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } else if (!RD->hasTrivialDestructor()) { 45369f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // All fields and bases are of literal types, so have trivial destructors. 45379f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith // If this class's destructor is non-trivial it must be user-declared. 45389f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith CXXDestructorDecl *Dtor = RD->getDestructor(); 45399f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith assert(Dtor && "class has literal fields and bases but no dtor?"); 45409f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith if (!Dtor) 45419f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 45429f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 45439f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith Diag(Dtor->getLocation(), Dtor->isUserProvided() ? 45449f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_user_provided_dtor : 45459f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith diag::note_non_literal_nontrivial_dtor) << RD; 45469f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith } 45479f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 45489f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith return true; 45499f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith} 45509f569cca2a4c5fb6026005434e27025b9e71309dRichard Smith 455191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosierbool Sema::RequireLiteralType(SourceLocation Loc, QualType T, unsigned DiagID) { 4552f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor TypeDiagnoserDiag Diagnoser(DiagID); 4553f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor return RequireLiteralType(Loc, T, Diagnoser); 4554f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor} 4555f502d8ec9b43b259db9e37e9622279df46070fedDouglas Gregor 4556465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Retrieve a version of the type 'T' that is elaborated by Keyword 4557465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// and qualified by the nested-name-specifier contained in SS. 4558465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraQualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, 4559465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara const CXXScopeSpec &SS, QualType T) { 4560465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (T.isNull()) 4561e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 4562465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS; 4563e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (SS.isValid()) 4564465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 4565465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara else { 4566465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (Keyword == ETK_None) 4567465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T; 4568465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = 0; 4569465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 4570465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return Context.getElaboratedType(Keyword, NNS, T); 4571e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 4572af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 45732a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildTypeofExprType(Expr *E, SourceLocation Loc) { 4574fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 45752a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 45762a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 45772a984cad5ac3fdceeff2bd99daa7b90979313475John McCall 45782b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian if (!E->isTypeDependent()) { 45792b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian QualType T = E->getType(); 4580aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian if (const TagType *TT = T->getAs<TagType>()) 4581aca7f7bab0102341863a0d1bdb048d69213ae362Fariborz Jahanian DiagnoseUseOfDecl(TT->getDecl(), E->getExprLoc()); 45822b1d51bcf891f8887759aebb4b9e78dee8542e6dFariborz Jahanian } 4583af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 4584af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 4585af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 4586f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// getDecltypeForExpr - Given an expr, will return the decltype for 4587f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// that expression, according to the rules in C++11 4588f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor/// [dcl.type.simple]p4 and C++11 [expr.lambda.prim]p18. 4589f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregorstatic QualType getDecltypeForExpr(Sema &S, Expr *E) { 4590f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (E->isTypeDependent()) 4591f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return S.Context.DependentTy; 4592f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 45936d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // C++11 [dcl.type.simple]p4: 45946d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // The type denoted by decltype(e) is defined as follows: 45956d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // 45966d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - if e is an unparenthesized id-expression or an unparenthesized class 459791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // member access (5.2.5), decltype(e) is the type of the entity named 459891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // by e. If there is no such entity, or if e names a set of overloaded 45996d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // functions, the program is ill-formed; 4600f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) { 4601f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 4602f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return VD->getType(); 4603f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 4604f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const MemberExpr *ME = dyn_cast<MemberExpr>(E)) { 4605f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 4606f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return FD->getType(); 4607f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 460891cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4609f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // C++11 [expr.lambda.prim]p18: 4610f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // Every occurrence of decltype((x)) where x is a possibly 4611f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // parenthesized id-expression that names an entity of automatic 4612f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // storage duration is treated as if x were transformed into an 4613f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // access to a corresponding data member of the closure type that 4614f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // would have been declared if x were an odr-use of the denoted 4615f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor // entity. 4616f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor using namespace sema; 4617f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (S.getCurLambda()) { 4618f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (isa<ParenExpr>(E)) { 4619f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E->IgnoreParens())) { 4620f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor if (VarDecl *Var = dyn_cast<VarDecl>(DRE->getDecl())) { 462168932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor QualType T = S.getCapturedDeclRefType(Var, DRE->getLocation()); 462268932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor if (!T.isNull()) 462368932845a432d2a1dbbc57a84fd85bbb37c90487Douglas Gregor return S.Context.getLValueReferenceType(T); 4624f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 4625f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 4626f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 4627f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor } 4628f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 4629f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 46306d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // C++11 [dcl.type.simple]p4: 46316d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // [...] 46326d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor QualType T = E->getType(); 46336d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor switch (E->getValueKind()) { 463491cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // - otherwise, if e is an xvalue, decltype(e) is T&&, where T is the 46356d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // type of e; 46366d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_XValue: T = S.Context.getRValueReferenceType(T); break; 463791cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier // - otherwise, if e is an lvalue, decltype(e) is T&, where T is the 46386d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // type of e; 46396d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_LValue: T = S.Context.getLValueReferenceType(T); break; 46406d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor // - otherwise, decltype(e) is the type of e. 46416d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor case VK_RValue: break; 46426d9ef30c5026e80fb398ed32bcdf69e4d714f033Douglas Gregor } 464391cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4644f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return T; 4645f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor} 4646f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor 46472a984cad5ac3fdceeff2bd99daa7b90979313475John McCallQualType Sema::BuildDecltypeType(Expr *E, SourceLocation Loc) { 4648fb8721ce4c6fef3739b1cbd1e38e3f1949462033John McCall ExprResult ER = CheckPlaceholderExpr(E); 46492a984cad5ac3fdceeff2bd99daa7b90979313475John McCall if (ER.isInvalid()) return QualType(); 46502a984cad5ac3fdceeff2bd99daa7b90979313475John McCall E = ER.take(); 465191cbbbf506c892a26d4301e2b3ccd377b0938817Chad Rosier 4652f8af98286022f72157d84951b48fde5fb369ab29Douglas Gregor return Context.getDecltypeType(E, getDecltypeForExpr(*this, E)); 4653af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 4654ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt 4655ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean HuntQualType Sema::BuildUnaryTransformType(QualType BaseType, 4656ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::UTTKind UKind, 4657ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt SourceLocation Loc) { 4658ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt switch (UKind) { 4659ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt case UnaryTransformType::EnumUnderlyingType: 4660ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType() && !BaseType->isEnumeralType()) { 4661ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Diag(Loc, diag::err_only_enums_have_underlying_types); 4662ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return QualType(); 4663ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } else { 4664ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt QualType Underlying = BaseType; 4665ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt if (!BaseType->isDependentType()) { 4666ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt EnumDecl *ED = BaseType->getAs<EnumType>()->getDecl(); 4667ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(ED && "EnumType has no EnumDecl"); 4668ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt DiagnoseUseOfDecl(ED, Loc); 4669ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt Underlying = ED->getIntegerType(); 4670ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4671ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt assert(!Underlying.isNull()); 4672ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt return Context.getUnaryTransformType(BaseType, Underlying, 4673ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt UnaryTransformType::EnumUnderlyingType); 4674ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4675ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt } 4676ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt llvm_unreachable("unknown unary transform type"); 4677ca63c200346c0ca9e00194ec6e34a5a7b0ed9321Sean Hunt} 4678b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4679b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli FriedmanQualType Sema::BuildAtomicType(QualType T, SourceLocation Loc) { 4680b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (!T->isDependentType()) { 46818327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith // FIXME: It isn't entirely clear whether incomplete atomic types 46828327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith // are allowed or not; for simplicity, ban them for the moment. 4683d10099e5c8238fa0327f03921cf2e3c8975c881eDouglas Gregor if (RequireCompleteType(Loc, T, diag::err_atomic_specifier_bad_type, 0)) 46848327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith return QualType(); 46858327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith 4686b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman int DisallowedKind = -1; 46878327118ff60cd9c4812fba1e5ba4eb3cb5ed3401Richard Smith if (T->isArrayType()) 4688b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 1; 4689b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isFunctionType()) 4690b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 2; 4691b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isReferenceType()) 4692b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 3; 4693b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T->isAtomicType()) 4694b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 4; 4695b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (T.hasQualifiers()) 4696b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 5; 4697b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman else if (!T.isTriviallyCopyableType(Context)) 4698b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Some other non-trivially-copyable type (probably a C++ class) 4699b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman DisallowedKind = 6; 4700b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4701b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman if (DisallowedKind != -1) { 4702b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman Diag(Loc, diag::err_atomic_specifier_bad_type) << DisallowedKind << T; 4703b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return QualType(); 4704b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 4705b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4706b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // FIXME: Do we need any handling for ARC here? 4707b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman } 4708b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman 4709b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman // Build the pointer type. 4710b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman return Context.getAtomicType(T); 4711b001de7458d17c17e6d8b8034c7cfcefd3b70c00Eli Friedman} 4712