SemaType.cpp revision 52fc314e1b5e1baee6305067cf831763d02bd243
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- SemaType.cpp - Semantic Analysis for Types -----------------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements type-related semantic analysis. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 142d88708cbe4e4ec5e04e4acb6bd7f5be68557379John McCall#include "clang/Sema/SemaInternal.h" 157cd088e519d7e6caa4c4c12db52e0e4ae35d25c2John McCall#include "clang/Sema/Template.h" 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 17a8f32e0965ee19ecc53cd796e34268377a20357cDouglas Gregor#include "clang/AST/CXXInheritance.h" 18980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 192943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor#include "clang/AST/DeclTemplate.h" 204adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 2151bd803fbdade51d674598ed45da3d54190a656cJohn McCall#include "clang/AST/TypeLocVisitor.h" 22e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 2391a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson#include "clang/Basic/PartialDiagnostic.h" 24d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis#include "clang/Basic/TargetInfo.h" 2519510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 264994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl#include "llvm/ADT/SmallPtrSet.h" 2787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor#include "llvm/Support/ErrorHandling.h" 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 302dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor/// \brief Perform adjustment on the parameter type of a function. 312dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor/// 322dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor/// This routine adjusts the given parameter type @p T to the actual 331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter type used by semantic analysis (C99 6.7.5.3p[7,8], 341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ [dcl.fct]p3). The adjusted parameter type is returned. 352dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas GregorQualType Sema::adjustParameterType(QualType T) { 362dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // C99 6.7.5.3p7: 37778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // A declaration of a parameter as "array of type" shall be 38778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // adjusted to "qualified pointer to type", where the type 39778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // qualifiers (if any) are those specified within the [ and ] of 40778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // the array type derivation. 41778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner if (T->isArrayType()) 422dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return Context.getArrayDecayedType(T); 43778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner 44778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // C99 6.7.5.3p8: 45778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // A declaration of a parameter as "function returning type" 46778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // shall be adjusted to "pointer to function returning type", as 47778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // in 6.3.2.1. 48778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner if (T->isFunctionType()) 492dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return Context.getPointerType(T); 502dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 512dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return T; 522dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor} 532dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 545db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 555db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 565db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// isOmittedBlockReturnType - Return true if this declarator is missing a 575db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// return type because this is a omitted return type on a block literal. 588ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redlstatic bool isOmittedBlockReturnType(const Declarator &D) { 595db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getContext() != Declarator::BlockLiteralContext || 608ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl D.getDeclSpec().hasTypeSpecifier()) 615db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 625db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 635db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 0) 64a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^{ ... } 655db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 665db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 1 && 675db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner D.getTypeObject(0).Kind == DeclaratorChunk::Function) 68a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^(int X, float Y) { ... } 695db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 705db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 715db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner} 725db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 7304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCalltypedef std::pair<const AttributeList*,QualType> DelayedAttribute; 7404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCalltypedef llvm::SmallVectorImpl<DelayedAttribute> DelayedAttributeSet; 7504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 7604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallstatic void ProcessTypeAttributeList(Sema &S, QualType &Type, 77328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis bool IsDeclSpec, 7804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall const AttributeList *Attrs, 7904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DelayedAttributeSet &DelayedFnAttrs); 8004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallstatic bool ProcessFnAttr(Sema &S, QualType &Type, const AttributeList &Attr); 8104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 8204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallstatic void ProcessDelayedFnAttrs(Sema &S, QualType &Type, 8304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DelayedAttributeSet &Attrs) { 8404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall for (DelayedAttributeSet::iterator I = Attrs.begin(), 8504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall E = Attrs.end(); I != E; ++I) 86e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara if (ProcessFnAttr(S, Type, *I->first)) { 8704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(I->first->getLoc(), diag::warn_function_attribute_wrong_type) 8804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << I->first->getName() << I->second; 89e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Avoid any further processing of this attribute. 90e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara I->first->setInvalid(); 91e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 9204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Attrs.clear(); 9304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 9404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 9504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallstatic void DiagnoseDelayedFnAttrs(Sema &S, DelayedAttributeSet &Attrs) { 9604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall for (DelayedAttributeSet::iterator I = Attrs.begin(), 9704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall E = Attrs.end(); I != E; ++I) { 9804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(I->first->getLoc(), diag::warn_function_attribute_wrong_type) 9904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << I->first->getName() << I->second; 100e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Avoid any further processing of this attribute. 101e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara I->first->setInvalid(); 10204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 10304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Attrs.clear(); 10404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 10504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 106930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// \brief Convert the specified declspec to the appropriate type 107930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// object. 1085db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// \param D the declarator containing the declaration specifier. 1095153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// \returns The type described by the declaration specifiers. This function 1105153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// never returns null. 11104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallstatic QualType ConvertDeclSpecToType(Sema &TheSema, 11204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Declarator &TheDeclarator, 11304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DelayedAttributeSet &Delayed) { 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: Should move the logic from DeclSpec::Finish to here for validity 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // checking. 1165db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner const DeclSpec &DS = TheDeclarator.getDeclSpec(); 1175db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner SourceLocation DeclLoc = TheDeclarator.getIdentifierLoc(); 1185db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (DeclLoc.isInvalid()) 1195db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner DeclLoc = DS.getSourceRange().getBegin(); 1201564e3906cad604a42bd131e584751a75589a9c4Chris Lattner 1211564e3906cad604a42bd131e584751a75589a9c4Chris Lattner ASTContext &Context = TheSema.Context; 1221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1235db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner QualType Result; 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecType()) { 12596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner case DeclSpec::TST_void: 12696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Result = Context.VoidTy; 12796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner break; 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_char: 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 130fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.CharTy; 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) 132fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.SignedCharTy; 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else { 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Unknown TSS value"); 136fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.UnsignedCharTy; 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 138958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 13964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case DeclSpec::TST_wchar: 14064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 14164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.WCharTy; 14264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) { 1431564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 144f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 14564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getSignedWCharType(); 14664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } else { 14764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 14864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis "Unknown TSS value"); 1491564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 150f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 15164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getUnsignedWCharType(); 15264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } 15364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 154f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char16: 155f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 156f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 157f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char16Ty; 158f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 159f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char32: 160f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 161f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 162f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char32Ty; 163f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 164d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner case DeclSpec::TST_unspecified: 16562f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner // "<proto1,proto2>" is an objc qualified ID with a missing id. 166097e916b617bb4a069a03764024c310ed42a6424Chris Lattner if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 167c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 168c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**)PQ, 169c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 170c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 17162f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner break; 17262f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner } 1735db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 1745db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // If this is a missing declspec in a block literal return context, then it 1755db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // is inferred from the return statements inside the block. 1768ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl if (isOmittedBlockReturnType(TheDeclarator)) { 1775db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner Result = Context.DependentTy; 1785db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 1795db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 1801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 181d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 182d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 183d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 184d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 185d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 186d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 187d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 1881564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().ImplicitInt) { 18935d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 19035d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 1913f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 1921564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::ext_missing_declspec) 1933f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 194849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(DS.getSourceRange().getBegin(), "int"); 1953f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 1964310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 197d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 198d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 199d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 200d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 2014310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor // FIXME: Does Microsoft really have the implicit int extension in C++? 2021564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().CPlusPlus && 2031564e3906cad604a42bd131e584751a75589a9c4Chris Lattner !TheSema.getLangOptions().Microsoft) { 2041564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::err_missing_type_specifier) 2053f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 2061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 207b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 208b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 209b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 2105db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 211b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 2121564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::ext_missing_type_specifier) 2133f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 214b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 215d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 2161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 2183cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 221fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 222fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 223fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 224311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 225311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 226311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 227311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 228311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner if (!TheSema.getLangOptions().C99 && 229311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner !TheSema.getLangOptions().CPlusPlus0x) 230311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner TheSema.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 231311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 235fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 236fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 237fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 238311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 239311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 240311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 241311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 242311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner if (!TheSema.getLangOptions().C99 && 243311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner !TheSema.getLangOptions().CPlusPlus0x) 244311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner TheSema.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 245311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 248958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 2493cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 250fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 251958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 252958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 253fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 254958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 255fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 256958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 257fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 2595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 2611564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 2628f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 2635db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 2648f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 26599dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_struct: { 269b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeDecl *D = dyn_cast_or_null<TypeDecl>(DS.getRepAsDecl()); 2706e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 2716e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 2726e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 2735db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 2746e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 2756e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 2766e24726524c2b51b31bb4b622aa678a46b024f42John McCall 277a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 27854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall TheSema.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeLoc()); 279a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 281a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 282a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 2835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 284a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 2852191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 2862191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall // In C++, make an ElaboratedType. 2871564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().CPlusPlus) { 288465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedTypeKeyword Keyword 289465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); 290465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara Result = TheSema.getElaboratedType(Keyword, DS.getTypeSpecScope(), 291465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara Result); 2922191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall } 2935153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D->isInvalidDecl()) 2945db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 295958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 2961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 2971a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 301b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Result = TheSema.GetTypeFromParser(DS.getRepAsType()); 30227940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall if (Result.isNull()) 30327940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall TheDeclarator.setInvalidType(true); 30427940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall else if (DeclSpec::ProtocolQualifierListTy PQ 30527940d2fb346325d6001a7661e4ada099cd8e59cJohn McCall = DS.getProtocolQualifiers()) { 306c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *ObjT = Result->getAs<ObjCObjectType>()) { 307c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Silently drop any existing protocol qualifiers. 308c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // TODO: determine whether that's the right thing to do. 309c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjT->getNumProtocols()) 310c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = ObjT->getBaseType(); 311c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 312c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getNumProtocolQualifiers()) 313c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Result, 314c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 315c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 316c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCIdType()) { 317ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 318c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 319c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 320c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 321c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 322c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCClassType()) { 3234262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 324c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy, 325c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 326c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 327c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 3283f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 3291564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 3303f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 3315db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 3323f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 333c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 3341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 336958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 338958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 339e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 340b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Result = TheSema.GetTypeFromParser(DS.getRepAsType()); 341958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 342d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 343fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 344958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 345d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 346b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 347d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 348d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 3494b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = TheSema.BuildTypeofExprType(E); 3504b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 3514b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 3524b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor TheDeclarator.setInvalidType(true); 3534b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 354958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 355d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 3566fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 357b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Expr *E = DS.getRepAsExpr(); 3586fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 3596fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 3601564e3906cad604a42bd131e584751a75589a9c4Chris Lattner Result = TheSema.BuildDecltypeType(E); 361af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 362af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 3635db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 364af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 3656fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 3666fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 367e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson case DeclSpec::TST_auto: { 368e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 369e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson Result = Context.UndeducedAutoTy; 370e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 371e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson } 3721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 373809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 3745153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 3755db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 3765153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 3775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 379958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 380f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 3811564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().Freestanding) 3821564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 383fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 38482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 38582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 38682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 387788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner VectorType::AltiVecSpecific AltiVecSpec = VectorType::AltiVec; 388788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner if (DS.isTypeAltiVecPixel()) 389788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner AltiVecSpec = VectorType::Pixel; 390788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner else if (DS.isTypeAltiVecBool()) 391788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner AltiVecSpec = VectorType::Bool; 392788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Result = Context.getVectorType(Result, 128/typeSize, AltiVecSpec); 393f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 3941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 395958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(DS.getTypeSpecComplex() != DeclSpec::TSC_imaginary && 396958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner "FIXME: imaginary types not supported yet!"); 3971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39838d8b98803ac354dba15578d65ea99a83dead046Chris Lattner // See if there are any attributes on the declspec that apply to the type (as 39938d8b98803ac354dba15578d65ea99a83dead046Chris Lattner // opposed to the decl). 400fca0ddd42965e0b7ae821213486d4e0dd71fb439Chris Lattner if (const AttributeList *AL = DS.getAttributes()) 401328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessTypeAttributeList(TheSema, Result, true, AL, Delayed); 4021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 40496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 40596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 40696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Enforce C99 6.7.3p2: "Types other than pointer types derived from object 40796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // or incomplete types shall not be restrict-qualified." C++ also allows 40896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // restrict-qualified references. 4090953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_restrict) { 4102b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isAnyPointerType() || Result->isReferenceType()) { 4112b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian QualType EltTy; 4122b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isObjCObjectPointerType()) 4132b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result; 4142b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian else 4152b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result->isPointerType() ? 4162b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<PointerType>()->getPointeeType() : 4172b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<ReferenceType>()->getPointeeType(); 4181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 419bad0e656c3732e3539a9cd6525de721d7e47408bDouglas Gregor // If we have a pointer or reference, the pointee must have an object 420bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner // incomplete type. 421bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner if (!EltTy->isIncompleteOrObjectType()) { 4221564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getRestrictSpecLoc(), 423d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_invalid_pointee) 424d162584991885ab004a02573a73ce06422b921fcChris Lattner << EltTy << DS.getSourceRange(); 4250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 426bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } 427bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } else { 4281564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getRestrictSpecLoc(), 429d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_not_pointer) 430d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 4310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 43296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 43396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 43696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 43796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 43896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 43996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Get some location to point at, either the C or V location. 44096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner SourceLocation Loc; 4410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 44296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getConstSpecLoc(); 4430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 44496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getVolatileSpecLoc(); 4450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 4460953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((TypeQuals & DeclSpec::TQ_restrict) && 4470953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Has CVR quals but not C, V, or R?"); 4480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Loc = DS.getRestrictSpecLoc(); 44996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4501564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(Loc, diag::warn_typecheck_function_qualifiers) 451d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 45296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 454f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 455f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 456f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 457f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 458f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 4591a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 4601a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 461f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 4620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 4630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 4641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(TypeQuals); 4670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Result = Context.getQualifiedType(Result, Quals); 46896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 470f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 471f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 472f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 473cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 474cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 475cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 4761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 477cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 478cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 479cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 4802865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 4812865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Qs) { 4822865474261a608c7873b87ba4af110d17907896dJohn McCall // Enforce C99 6.7.3p2: "Types other than pointer types derived from 4832865474261a608c7873b87ba4af110d17907896dJohn McCall // object or incomplete types shall not be restrict-qualified." 4842865474261a608c7873b87ba4af110d17907896dJohn McCall if (Qs.hasRestrict()) { 4852865474261a608c7873b87ba4af110d17907896dJohn McCall unsigned DiagID = 0; 4862865474261a608c7873b87ba4af110d17907896dJohn McCall QualType ProblemTy; 4872865474261a608c7873b87ba4af110d17907896dJohn McCall 4882865474261a608c7873b87ba4af110d17907896dJohn McCall const Type *Ty = T->getCanonicalTypeInternal().getTypePtr(); 4892865474261a608c7873b87ba4af110d17907896dJohn McCall if (const ReferenceType *RTy = dyn_cast<ReferenceType>(Ty)) { 4902865474261a608c7873b87ba4af110d17907896dJohn McCall if (!RTy->getPointeeType()->isIncompleteOrObjectType()) { 4912865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 4922865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<ReferenceType>()->getPointeeType(); 4932865474261a608c7873b87ba4af110d17907896dJohn McCall } 4942865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) { 4952865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 4962865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 4972865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 4982865474261a608c7873b87ba4af110d17907896dJohn McCall } 4992865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const MemberPointerType *PTy = dyn_cast<MemberPointerType>(Ty)) { 5002865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 5012865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 5022865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 5032865474261a608c7873b87ba4af110d17907896dJohn McCall } 5042865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (!Ty->isDependentType()) { 5052865474261a608c7873b87ba4af110d17907896dJohn McCall // FIXME: this deserves a proper diagnostic 5062865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 5072865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T; 5082865474261a608c7873b87ba4af110d17907896dJohn McCall } 5092865474261a608c7873b87ba4af110d17907896dJohn McCall 5102865474261a608c7873b87ba4af110d17907896dJohn McCall if (DiagID) { 5112865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(Loc, DiagID) << ProblemTy; 5122865474261a608c7873b87ba4af110d17907896dJohn McCall Qs.removeRestrict(); 5132865474261a608c7873b87ba4af110d17907896dJohn McCall } 5142865474261a608c7873b87ba4af110d17907896dJohn McCall } 5152865474261a608c7873b87ba4af110d17907896dJohn McCall 5162865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getQualifiedType(T, Qs); 5172865474261a608c7873b87ba4af110d17907896dJohn McCall} 5182865474261a608c7873b87ba4af110d17907896dJohn McCall 519cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 520cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 521cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 522cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 523cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 524cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 525cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 526cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 527cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 528cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 529cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 530cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 531cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 5322865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildPointerType(QualType T, 533cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 534cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 535cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 536cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 537ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 538cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 539cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 540cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 541c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); 54292e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 543cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 5442865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getPointerType(T); 545cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 546cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 547cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 548cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 549cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 550cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 551cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 552cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 553cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 554cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 555cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 556cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 557cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 558cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 559cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 56054e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 5612865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 56254e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 56354e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 56454e14c4db764c0636160d26c5bbf491637c83a76John McCall 56554e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++0x [dcl.typedef]p9: If a typedef TD names a type that is a 56654e14c4db764c0636160d26c5bbf491637c83a76John McCall // reference to a type T, and attempt to create the type "lvalue 56754e14c4db764c0636160d26c5bbf491637c83a76John McCall // reference to cv TD" creates the type "lvalue reference to T". 56854e14c4db764c0636160d26c5bbf491637c83a76John McCall // We use the qualifiers (restrict or none) of the original reference, 56954e14c4db764c0636160d26c5bbf491637c83a76John McCall // not the new ones. This is consistent with GCC. 57054e14c4db764c0636160d26c5bbf491637c83a76John McCall 57154e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 57254e14c4db764c0636160d26c5bbf491637c83a76John McCall // 57354e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 57454e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 57554e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 57654e14c4db764c0636160d26c5bbf491637c83a76John McCall // 57754e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 57854e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 57954e14c4db764c0636160d26c5bbf491637c83a76John McCall // 58054e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 58154e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 58254e14c4db764c0636160d26c5bbf491637c83a76John McCall // collapsing of references-to-references as described in C++ 58354e14c4db764c0636160d26c5bbf491637c83a76John McCall // DR 106 and amended by C++ DR 540. 584cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 585cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 58633a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 587cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 588cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 589cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 590cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 591cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 592cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 593cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 5947c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 5952865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getLValueReferenceType(T, SpelledAsLValue); 5962865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getRValueReferenceType(T); 597cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 598cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 599cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 600cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 601cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 602cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 603cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 6041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 6051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 606cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 607cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 608cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// array type or, if there is no such entity, the location of the 609cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have array type. 610cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 611cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 612cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 613cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 614cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 615cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 616cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 617cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 6187e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 6190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 6207e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 621923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (getLangOptions().CPlusPlus) { 622138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 623138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 624138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // type, the (possibly cv-qualified) type void, a function type or an 625138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 626138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 627138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 628138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 629138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 630138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 631138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 632138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 633138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 634923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (T->isVoidType()) { 635923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 636923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 637923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 638138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 639138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (RequireNonAbstractType(Brackets.getBegin(), T, 640138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 641138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 642138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 643923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 644138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 645138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 646923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 647923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 648923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 649923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 650cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 651cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 652cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 653ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 654cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 655cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 6561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 657e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson if (Context.getCanonicalType(T) == Context.UndeducedAutoTy) { 6581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, diag::err_illegal_decl_array_of_auto) 659e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson << getPrintableNameForEntity(Entity); 660e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson return QualType(); 661e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson } 6621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6636217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 664cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 665cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 666cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 667cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 668c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (T->isObjCObjectType()) { 669c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 670c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 671cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 6721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 673cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 674cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (ArraySize && !ArraySize->isTypeDependent() && 675cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor !ArraySize->getType()->isIntegerType()) { 676cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 677cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 678cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 679cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 6802767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor llvm::APSInt ConstVal(Context.getTypeSize(Context.getSizeType())); 681cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 682f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 6837e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 684f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 685f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 686ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()) { 6877e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 688cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else if (!ArraySize->isIntegerConstantExpr(ConstVal, Context) || 689923d56d436f750bc1f29db50e641078725558a1bSebastian Redl (!T->isDependentType() && !T->isIncompleteType() && 690923d56d436f750bc1f29db50e641078725558a1bSebastian Redl !T->isConstantSizeType())) { 691cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Per C99, a variable array is an array with either a non-constant 692cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // size or an element type that has a non-constant-size 6937e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 694cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 695cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 696cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 697923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 698923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(ArraySize->getLocStart(), 699923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_typecheck_negative_array_size) 700923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 701923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 702923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 703923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 70402024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 70502024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 70602024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor Diag(ArraySize->getLocStart(), 70702024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 70802024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 709923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 7102767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor } else if (!T->isDependentType() && !T->isVariablyModifiedType() && 7112767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor !T->isIncompleteType()) { 7122767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor // Is the array too large? 7132767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor unsigned ActiveSizeBits 7142767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor = ConstantArrayType::getNumAddressingBits(Context, T, ConstVal); 7152767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor if (ActiveSizeBits > ConstantArrayType::getMaxSizeBits(Context)) 7162767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_too_large) 7172767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ConstVal.toString(10) 7182767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor << ArraySize->getSourceRange(); 7191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7202767ce2e21d8bc17869b8436220bce719b3369e4Douglas Gregor 72146a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 722cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 723af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 724af40776922bc5c28e740adb0342faa09f35b0068David Chisnall if (!getLangOptions().C99) { 7250fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor if (T->isVariableArrayType()) { 7260fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Prohibit the use of non-POD types in VLAs. 727204ce17e0cfd9bbe229627e1e5a20c3f2f587c8cDouglas Gregor if (!T->isDependentType() && 728204ce17e0cfd9bbe229627e1e5a20c3f2f587c8cDouglas Gregor !Context.getBaseElementType(T)->isPODType()) { 7290fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::err_vla_non_pod) 7300fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor << Context.getBaseElementType(T); 7310fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor return QualType(); 7320fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } 733a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor // Prohibit the use of VLAs during template argument deduction. 734a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor else if (isSFINAEContext()) { 735a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor Diag(Loc, diag::err_vla_in_sfinae); 736a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor return QualType(); 737a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor } 7380fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Just extwarn about VLAs. 7390fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor else 7400fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::ext_vla); 7410fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } else if (ASM != ArrayType::Normal || Quals != 0) 742043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor Diag(Loc, 743043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor getLangOptions().CPlusPlus? diag::err_c99_array_usage_cxx 744043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor : diag::ext_c99_array_usage); 745cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 746cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 747cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 748cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 7499cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7509cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 7519cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 7529cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 7539ae2f076ca5ab1feb3ba95629099ec2319833701John McCallQualType Sema::BuildExtVectorType(QualType T, Expr *ArraySize, 7549cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 7559cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 7569cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 7571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 7589cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 7599cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 7609cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 7619cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 7629cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7639ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isTypeDependent() && !ArraySize->isValueDependent()) { 7649cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 7659ae2f076ca5ab1feb3ba95629099ec2319833701John McCall if (!ArraySize->isIntegerConstantExpr(vecSize, Context)) { 7669cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_argument_not_int) 7679ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << "ext_vector_type" << ArraySize->getSourceRange(); 7689cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 7699cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 7701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 7729cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 7731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 7741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7759cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 7769cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 7779ae2f076ca5ab1feb3ba95629099ec2319833701John McCall << ArraySize->getSourceRange(); 7789cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 7799cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 7801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7819cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T->isDependentType()) 7829cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return Context.getExtVectorType(T, vectorSize); 7831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7859ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Context.getDependentSizedExtVectorType(T, ArraySize, AttrLoc); 7869cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 7871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 788724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \brief Build a function type. 789724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 790724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// This routine checks the function type according to C++ rules and 791724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// under the assumption that the result type and parameter types have 792724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// just been instantiated from a template. It therefore duplicates 7932943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor/// some of the behavior of GetTypeForDeclarator, but in a much 794724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// simpler form that is only suitable for this narrow use case. 795724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 796724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param T The return type of the function. 797724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 798724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param ParamTypes The parameter types of the function. This array 799724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// will be modified to account for adjustments to the types of the 800724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function parameters. 801724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 802724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param NumParamTypes The number of parameter types in ParamTypes. 803724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 804724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Variadic Whether this is a variadic function type. 805724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 806724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the function type. 807724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 808724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Loc The location of the entity whose type involves this 809724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function type or, if there is no such entity, the location of the 810724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type that will have function type. 811724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 812724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Entity The name of the entity that involves the function 813724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type, if known. 814724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 815724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \returns A suitable function type, if there are no 816724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// errors. Otherwise, returns a NULL type. 817724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas GregorQualType Sema::BuildFunctionType(QualType T, 8181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType *ParamTypes, 819724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor unsigned NumParamTypes, 820724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Variadic, unsigned Quals, 821fa869547eb1cab12d7e0c0dfa8ba594e336b9b32Eli Friedman SourceLocation Loc, DeclarationName Entity, 822fa869547eb1cab12d7e0c0dfa8ba594e336b9b32Eli Friedman const FunctionType::ExtInfo &Info) { 823724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 82458408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(Loc, diag::err_func_returning_array_function) 82558408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 826724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 827724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 8285291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor 829724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 830724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor for (unsigned Idx = 0; Idx < NumParamTypes; ++Idx) { 8312dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor QualType ParamType = adjustParameterType(ParamTypes[Idx]); 8322dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 833724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 834724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 835724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 836cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 83754e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 838724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 839724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 840724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 841724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 842724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 8431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Context.getFunctionType(T, ParamTypes, NumParamTypes, Variadic, 844fa869547eb1cab12d7e0c0dfa8ba594e336b9b32Eli Friedman Quals, false, false, 0, 0, Info); 845724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 8461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 847949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 848949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 849949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 850949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 8510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR Qualifiers applied to the member pointer type 852949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 853949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 854949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 855949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 856949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 8571eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 8582865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 859949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 860949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 861949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 862949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 863949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 864949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 865949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 866949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 867949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 868949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 869949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 870949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 871949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 872949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 873737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // C++ 8.3.3p3: A pointer to member shall not point to ... a member 874949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 875949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 8768d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 877ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 878949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 879949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 880949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 881949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 882949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 883949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 884949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 885949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 886949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 887949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 888949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 889949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 890949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 891949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 892d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // In the Microsoft ABI, the class is allowed to be an incomplete 893d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // type. In such cases, the compiler makes a worst-case assumption. 894d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // We make no such assumption right now, so emit an error if the 895d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis // class isn't a complete type. 89620cf717034ba1f20fc47c025ecb72ed9b631ad13Charles Davis if (Context.Target.getCXXABI() == CXXABI_Microsoft && 897d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis RequireCompleteType(Loc, Class, diag::err_incomplete_type)) 898d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis return QualType(); 899d18f9f965bcfe56edcdf9b0d8375ffaad9866b3fCharles Davis 9002865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getMemberPointerType(T, Class.getTypePtr()); 901949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 9021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9039a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 9049a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 9059a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 9069a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 9070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR The cvr-qualifiers to be applied to the block pointer type. 9089a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 9099a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Loc The location of the entity whose type involves this 9109a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// block pointer type or, if there is no such entity, the location of the 9119a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type that will have block pointer type. 9129a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 9139a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 9149a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 9159a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 9169a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 9179a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 9182865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildBlockPointerType(QualType T, 9191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 9209a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 9210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 9229a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 9239a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 9249a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 9251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9262865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getBlockPointerType(T); 9279a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 9289a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 929b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallQualType Sema::GetTypeFromParser(ParsedType Ty, TypeSourceInfo **TInfo) { 930b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = Ty.get(); 9313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 932a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 9333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 9343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 9353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 936a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 937e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis if (LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 938e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 939a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 940e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 9411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 942a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 943e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 944e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 945e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 94698eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump/// GetTypeForDeclarator - Convert the type for the specified 9478ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl/// declarator to Type instances. 948402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// 949402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// If OwnedDecl is non-NULL, and this declarator's decl-specifier-seq 950402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// owns the declaration of a type (e.g., the definition of a struct 951402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// type), then *OwnedDecl will receive the owned declaration. 952bf1a028246d884a540aeafa38e89be59a269b072John McCall/// 953bf1a028246d884a540aeafa38e89be59a269b072John McCall/// The result of this call will never be null, but the associated 954bf1a028246d884a540aeafa38e89be59a269b072John McCall/// type may be a null type if there's an unrecoverable error. 955bf1a028246d884a540aeafa38e89be59a269b072John McCallTypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S, 956bf1a028246d884a540aeafa38e89be59a269b072John McCall TagDecl **OwnedDecl) { 957930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Determine the type of the declarator. Not all forms of declarator 958930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // have a type. 959930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 96005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo = 0; 96105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 96204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall llvm::SmallVector<DelayedAttribute,4> FnAttrsFromDeclSpec; 96304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 9643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 9653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 9663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 9670486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 9683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 96904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall T = ConvertDeclSpecToType(*this, D, FnAttrsFromDeclSpec); 9705db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 971591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 972b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl* Owned = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 973b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor // Owned is embedded if it was defined here, or if it is the 974b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor // very first (i.e., canonical) declaration of this tag type. 975b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor Owned->setEmbeddedInDeclarator(Owned->isDefinition() || 976b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor Owned->isCanonicalDecl()); 977591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (OwnedDecl) *OwnedDecl = Owned; 978591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 979930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 980930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 9813f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 9820efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 9833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 984930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 98548026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // "void" instead. 986930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor T = Context.VoidTy; 987930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 98848026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 98948026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 99048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 99148026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 99205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor T = GetTypeFromParser(D.getName().ConversionFunctionId, 993bf1a028246d884a540aeafa38e89be59a269b072John McCall &ReturnTypeInfo); 99448026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 995930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 996f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 9971f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor if (T.isNull()) 998bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 9991f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor 1000baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (T == Context.UndeducedAutoTy) { 1001baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 10021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1003baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 1004baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 1005baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson assert(0 && "K&R type lists aren't allowed in C++"); 1006baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1007baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 1008baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 0; // Function prototype 1009baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1010baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 1011baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (cast<TagDecl>(CurContext)->getTagKind()) { 1012465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Enum: assert(0 && "unhandled tag kind"); break; 1013465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Struct: Error = 1; /* Struct member */ break; 1014465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Union: Error = 2; /* Union member */ break; 1015465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Class: Error = 3; /* Class member */ break; 10161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1017baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1018baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 1019baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 4; // Exception declaration 1020baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1021baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 1022baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 5; // Template parameter 1023baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1024baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 1025baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 6; // Block literal 1026baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1027baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 1028baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 1029baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 1030baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 1031baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TypeNameContext: 1032baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1033baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1034baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 1035baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 1036baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Diag(D.getDeclSpec().getTypeSpecTypeLoc(), diag::err_auto_not_allowed) 1037baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson << Error; 1038baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson T = Context.IntTy; 1039baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 1040baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1041baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 10421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1043cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 1044cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 1045cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 1046cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 10471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 104804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall llvm::SmallVector<DelayedAttribute,4> FnAttrsFromPreviousChunk; 104904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 105098eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 105198eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 105298eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 10538ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 10548ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl DeclaratorChunk &DeclType = D.getTypeObject(e-i-1); 10555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 10565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown decltype!"); 10575618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 10589af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 10599af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 10609af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner Diag(DeclType.Loc, diag::err_blocks_disable); 10611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10622865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildBlockPointerType(T, D.getIdentifierLoc(), Name); 10632865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Cls.TypeQuals) 10642865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); 10655618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 10676a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 10686a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 10696a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 10706a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 10716a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 10726a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 10736a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 1074c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (getLangOptions().ObjC1 && T->getAs<ObjCObjectType>()) { 1075c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = Context.getObjCObjectPointerType(T); 10762865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 10772865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 107814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 107914108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 10802865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildPointerType(T, DeclType.Loc, Name); 10812865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 10822865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 10856a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 10866a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 10876a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 10886a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 10896a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 10906a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 10916a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 10922865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); 10932865474261a608c7873b87ba4af110d17907896dJohn McCall 10942865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Quals; 10952865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ref.HasRestrict) 10962865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 11006a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 11016a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 11026a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 11036a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 11046a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 11056a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 11066a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 1107fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 110894f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 11095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 11105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 1116f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star && 1117f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.getContext() != Declarator::PrototypeContext) { 1118f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 1119f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 1120f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 1121f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 1122f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 1123f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 1124f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 11250953e767ff7817f97b3ab20896b229891eeff45bJohn McCall T = BuildArrayType(T, ASM, ArraySize, 11260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::fromCVRMask(ATI.TypeQuals), 11277e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1130f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 11353cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 1136cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner // C99 6.7.5.3p1: The return type may not be a function or array type. 113758408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor // For conversion functions, we'll diagnose this particular error later. 113848026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor if ((T->isArrayType() || T->isFunctionType()) && 113948026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 114058408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(DeclType.Loc, diag::err_func_returning_array_function) 114158408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1142cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner T = Context.IntTy; 1143cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner D.setInvalidType(true); 1144cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner } 1145465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 11465291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // cv-qualifiers on return types are pointless except when the type is a 11475291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor // class type in C++. 11485291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor if (T.getCVRQualifiers() && D.getDeclSpec().getTypeQualifiers() && 11495291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor (!getLangOptions().CPlusPlus || 11505291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor (!T->isDependentType() && !T->isRecordType()))) { 11515291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor unsigned Quals = D.getDeclSpec().getTypeQualifiers(); 1152de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor std::string QualStr; 1153de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor unsigned NumQuals = 0; 11545291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor SourceLocation Loc; 1155de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor if (Quals & Qualifiers::Const) { 11565291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor Loc = D.getDeclSpec().getConstSpecLoc(); 1157de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor ++NumQuals; 1158de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor QualStr = "const"; 1159de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor } 1160de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor if (Quals & Qualifiers::Volatile) { 1161de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor if (NumQuals == 0) { 1162de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor Loc = D.getDeclSpec().getVolatileSpecLoc(); 1163de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor QualStr = "volatile"; 1164de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor } else 1165de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor QualStr += " volatile"; 1166de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor ++NumQuals; 1167de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor } 1168de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor if (Quals & Qualifiers::Restrict) { 1169de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor if (NumQuals == 0) { 1170de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor Loc = D.getDeclSpec().getRestrictSpecLoc(); 1171de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor QualStr = "restrict"; 1172de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor } else 1173de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor QualStr += " restrict"; 1174de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor ++NumQuals; 11755291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor } 1176de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor assert(NumQuals > 0 && "No known qualifiers?"); 1177de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor 11785291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor SemaDiagnosticBuilder DB = Diag(Loc, diag::warn_qual_return_type); 1179de80ec1fa947855d2e53722a8cd71367ff513481Douglas Gregor DB << QualStr << NumQuals; 11805291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor if (Quals & Qualifiers::Const) 11815291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor DB << FixItHint::CreateRemoval(D.getDeclSpec().getConstSpecLoc()); 11825291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor if (Quals & Qualifiers::Volatile) 11835291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor DB << FixItHint::CreateRemoval(D.getDeclSpec().getVolatileSpecLoc()); 11845291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor if (Quals & Qualifiers::Restrict) 11855291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor DB << FixItHint::CreateRemoval(D.getDeclSpec().getRestrictSpecLoc()); 11865291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor } 11875291c3cec0dbe8ad1d8e7e67e93af2b1586d5400Douglas Gregor 1188402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 1189402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 1190402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 1191b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TagDecl *Tag = cast<TagDecl>(D.getDeclSpec().getRepAsDecl()); 1192402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (Tag->isDefinition()) 1193402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 1194402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 1195402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 1196402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 11973cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 11983cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 11993cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl if (FTI.hasExceptionSpec && 12003cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 12013cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl Diag(FTI.getThrowLoc(), diag::err_exception_spec_in_typedef); 12023cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 12032865474261a608c7873b87ba4af110d17907896dJohn McCall if (!FTI.NumArgs && !FTI.isVariadic && !getLangOptions().CPlusPlus) { 12042865474261a608c7873b87ba4af110d17907896dJohn McCall // Simple void foo(), where the incoming T is the result type. 12052865474261a608c7873b87ba4af110d17907896dJohn McCall T = Context.getFunctionNoProtoType(T); 12062865474261a608c7873b87ba4af110d17907896dJohn McCall } else { 12072865474261a608c7873b87ba4af110d17907896dJohn McCall // We allow a zero-parameter variadic function in C if the 12082865474261a608c7873b87ba4af110d17907896dJohn McCall // function is marked with the "overloadable" attribute. Scan 12092865474261a608c7873b87ba4af110d17907896dJohn McCall // for this attribute now. 12102865474261a608c7873b87ba4af110d17907896dJohn McCall if (!FTI.NumArgs && FTI.isVariadic && !getLangOptions().CPlusPlus) { 1211965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 1212965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 1213965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 1214965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (Attrs->getKind() == AttributeList::AT_overloadable) { 1215965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 1216965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 1217965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1218965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1219965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 1220965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 1221965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 1222c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 12232865474261a608c7873b87ba4af110d17907896dJohn McCall 12242865474261a608c7873b87ba4af110d17907896dJohn McCall if (FTI.NumArgs && FTI.ArgInfo[0].Param == 0) { 1225788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function 1226788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner // definition. 12272865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 12282865474261a608c7873b87ba4af110d17907896dJohn McCall D.setInvalidType(true); 12292865474261a608c7873b87ba4af110d17907896dJohn McCall break; 12302865474261a608c7873b87ba4af110d17907896dJohn McCall } 12312865474261a608c7873b87ba4af110d17907896dJohn McCall 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> ArgTys; 12352865474261a608c7873b87ba4af110d17907896dJohn McCall ArgTys.reserve(FTI.NumArgs); 12361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 1238d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 12398123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner QualType ArgTy = Param->getType(); 124078c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 12412dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 12422dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Adjust the parameter type. 1243beb58cb83bd53b79b80fc6f9952efd985934cbfcDouglas Gregor assert((ArgTy == adjustParameterType(ArgTy)) && "Unadjusted type?"); 12442dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 124772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 12482dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 12495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 12505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 12515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DeclType.Loc, diag::err_void_only_param); 12542ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 12558123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 12562ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 12572ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 12585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(FTI.ArgInfo[i].IdentLoc, 12594565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 12602ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 12618123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 12622ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 12632ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 12640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 12652ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner Diag(DeclType.Loc, diag::err_void_param_qualified); 12661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12672ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 12682ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 12692ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 1270eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 1271eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 1272a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 1273183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 1274eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (BTy->getKind() == BuiltinType::Float) 1275eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 1276eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 12775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 127954e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1281465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1282465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl llvm::SmallVector<QualType, 4> Exceptions; 1283465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl Exceptions.reserve(FTI.NumExceptions); 12841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (unsigned ei = 0, ee = FTI.NumExceptions; ei != ee; ++ei) { 1285e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 1286e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QualType ET = GetTypeFromParser(FTI.Exceptions[ei].Ty); 1287ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // Check that the type is valid for an exception spec, and drop it if 1288ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // not. 1289ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl if (!CheckSpecifiedExceptionType(ET, FTI.Exceptions[ei].Range)) 1290ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl Exceptions.push_back(ET); 1291ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 1292465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1293beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad T = Context.getFunctionType(T, ArgTys.data(), ArgTys.size(), 1294465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.isVariadic, FTI.TypeQuals, 1295465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasExceptionSpec, 1296465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasAnyExceptionSpec, 1297ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor Exceptions.size(), Exceptions.data(), 1298264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo()); 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 130004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 130104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // For GCC compatibility, we allow attributes that apply only to 130204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // function types to be placed on a function's return type 130304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // instead (as long as that type doesn't happen to be function 130404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // or function-pointer itself). 130504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall ProcessDelayedFnAttrs(*this, T, FnAttrsFromPreviousChunk); 130604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 13075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1309f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 1310f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 13117bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara CXXScopeSpec &SS = DeclType.Mem.Scope(); 1312f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 13137bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (SS.isInvalid()) { 1314edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 1315edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 13167bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara } else if (isDependentScopeSpecifier(SS) || 13177bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara dyn_cast_or_null<CXXRecordDecl>(computeDeclContext(SS))) { 13181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 13197bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara = static_cast<NestedNameSpecifier*>(SS.getScopeRep()); 132087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 132187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 132287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 13237bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 13244a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 132587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 132687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 132787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 132887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 13299f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 133087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 13317bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara 133287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 133387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 133487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 13357bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // Note: if NNS is dependent, then its prefix (if any) is already 13367bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // included in ClsType; this does not hold if the NNS is 13377bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // nondependent: in this case (if there is indeed a prefix) 13387bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara // ClsType needs to be wrapped into an elaborated type. 13397bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara if (NNSPrefix && !NNS->isDependent()) 13407bd067635df79f6ce4b9ffee394ea6d9e86e4290Abramo Bagnara ClsType = Context.getElaboratedType(ETK_None, NNSPrefix, ClsType); 134187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 134287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 1343f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 1344949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(DeclType.Mem.Scope().getBeginLoc(), 1345949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 1346949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 1347949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 1348f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 1349f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1350f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1351949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 13522865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildMemberPointerType(T, ClsType, DeclType.Loc, D.getIdentifier()); 1353949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 1354f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 1355949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 13562865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (DeclType.Mem.TypeQuals) { 13572865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); 1358f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1359f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 1360f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1361f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1362cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 1363cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 1364cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 1365cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1366cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 136704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DiagnoseDelayedFnAttrs(*this, FnAttrsFromPreviousChunk); 136804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 1369c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 1370c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner if (const AttributeList *AL = DeclType.getAttrs()) 1371328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessTypeAttributeList(*this, T, false, AL, FnAttrsFromPreviousChunk); 13725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1373971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1374971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (getLangOptions().CPlusPlus && T->isFunctionType()) { 1375183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 1376778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 1377971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1378971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // C++ 8.3.5p4: A cv-qualifier-seq shall only be part of the function type 1379971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // for a nonstatic member function, the function type to which a pointer 1380971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // to member refers, or the top-level function type of a function typedef 1381971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // declaration. 1382c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl bool FreeFunction = (D.getContext() != Declarator::MemberContext && 1383c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl (!D.getCXXScopeSpec().isSet() || 1384c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl !computeDeclContext(D.getCXXScopeSpec(), /*FIXME:*/true)->isRecord())); 1385971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (FnTy->getTypeQuals() != 0 && 1386971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef && 1387c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl (FreeFunction || 1388971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static)) { 1389971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (D.isFunctionDeclarator()) 1390971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis Diag(D.getIdentifierLoc(), diag::err_invalid_qualified_function_type); 1391971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis else 1392971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis Diag(D.getIdentifierLoc(), 1393c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl diag::err_invalid_qualified_typedef_function_type_use) 1394c61bb2056148891375bfa591fa2859b9b6ec2734Sebastian Redl << FreeFunction; 1395971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1396971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // Strip the cv-quals from the type. 1397971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis T = Context.getFunctionType(FnTy->getResultType(), FnTy->arg_type_begin(), 1398ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor FnTy->getNumArgs(), FnTy->isVariadic(), 0, 1399264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, false, 0, 0, FunctionType::ExtInfo()); 1400971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 1401971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 14021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1403737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl // If there's a constexpr specifier, treat it as a top-level const. 1404737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl if (D.getDeclSpec().isConstexprSpecified()) { 1405737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl T.addConst(); 1406737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl } 1407737801257f795632175517ffce4a80c62fc7bff7Sebastian Redl 140804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Process any function attributes we might have delayed from the 140904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // declaration-specifiers. 141004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall ProcessDelayedFnAttrs(*this, T, FnAttrsFromDeclSpec); 141104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 141204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // If there were any type attributes applied to the decl itself, not 141304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // the type, apply them to the result type. But don't do this for 141404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // block-literal expressions, which are parsed wierdly. 141504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (D.getContext() != Declarator::BlockLiteralContext) 141604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (const AttributeList *Attrs = D.getAttributes()) 1417328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessTypeAttributeList(*this, T, false, Attrs, 1418328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis FnAttrsFromPreviousChunk); 141904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 142004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DiagnoseDelayedFnAttrs(*this, FnAttrsFromPreviousChunk); 14214adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 1422bf1a028246d884a540aeafa38e89be59a269b072John McCall if (T.isNull()) 1423bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 1424bf1a028246d884a540aeafa38e89be59a269b072John McCall else if (D.isInvalidType()) 1425bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getTrivialTypeSourceInfo(T); 1426bf1a028246d884a540aeafa38e89be59a269b072John McCall return GetTypeSourceInfoForDeclarator(D, T, ReturnTypeInfo); 14275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 142951bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 143051bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 143151bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 1432f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 143351bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 143451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TypeSpecLocFiller(const DeclSpec &DS) : DS(DS) {} 1435f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 143651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 143751bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 143851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 143951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 144051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 144151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 144251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 144351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 1444c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 1445c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 1446c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Handle the base type, which might not have been written explicitly. 1447c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 1448c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(false); 1449c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.getBaseLoc().initialize(SourceLocation()); 1450c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else { 1451c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(true); 1452c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getBaseLoc()); 1453c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 145454e14c4db764c0636160d26c5bbf491637c83a76John McCall 1455c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Protocol qualifiers. 145654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 145754e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 145854e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 145954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 146054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 146154e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 146254e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 146354e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 146454e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 146554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 146654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 146754e14c4db764c0636160d26c5bbf491637c83a76John McCall } 146851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 146954e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 147054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 1471c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getPointeeLoc()); 147251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 1473833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 1474a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 1475b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 1476833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1477833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 1478833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 1479a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 1480833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TL.initialize(DS.getTypeSpecTypeLoc()); 1481833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 1482833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 1483833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1484e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeLoc OldTL = TInfo->getTypeLoc(); 1485e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo->getType()->getAs<ElaboratedType>()) { 1486e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeLoc ElabTL = cast<ElaboratedTypeLoc>(OldTL); 1487e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TemplateSpecializationTypeLoc NamedTL = 1488e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara cast<TemplateSpecializationTypeLoc>(ElabTL.getNamedTypeLoc()); 1489e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(NamedTL); 1490e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1491e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara else 1492e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<TemplateSpecializationTypeLoc>(OldTL)); 1493833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 1494cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 1495cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 1496cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 1497cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 1498cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 1499cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 1500cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 1501cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 1502cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 1503b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall assert(DS.getRepAsType()); 1504cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 1505b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 1506cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 1507cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 1508ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 1509ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 1510ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 1511ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 1512ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 1513ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 1514ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 1515ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 1516ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 1517ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 1518ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 1519ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 1520ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 1521ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 1522ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 1523e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 1524e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 1525e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 1526e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (Keyword == ETK_Typename) { 1527e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 1528b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 1529e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 1530e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<ElaboratedTypeLoc>(TInfo->getTypeLoc())); 1531e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 1532e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1533e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1534e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 1535e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 1536e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 1537e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 1538e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setQualifierRange(SS.isEmpty() ? SourceRange(): SS.getRange()); 1539e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); 1540e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1541e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 1542e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 1543e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 1544e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (Keyword == ETK_Typename) { 1545e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 1546b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 1547e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 1548e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<DependentNameTypeLoc>(TInfo->getTypeLoc())); 1549e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 1550e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1551e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1552e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 1553e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 1554e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 1555e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 1556e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setQualifierRange(SS.isEmpty() ? SourceRange() : SS.getRange()); 1557e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara // FIXME: load appropriate source location. 155833500955d731c73717af52088b7fc0e7a85681e7John McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 155933500955d731c73717af52088b7fc0e7a85681e7John McCall } 156033500955d731c73717af52088b7fc0e7a85681e7John McCall void VisitDependentTemplateSpecializationTypeLoc( 156133500955d731c73717af52088b7fc0e7a85681e7John McCall DependentTemplateSpecializationTypeLoc TL) { 156233500955d731c73717af52088b7fc0e7a85681e7John McCall ElaboratedTypeKeyword Keyword 156333500955d731c73717af52088b7fc0e7a85681e7John McCall = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 156433500955d731c73717af52088b7fc0e7a85681e7John McCall if (Keyword == ETK_Typename) { 156533500955d731c73717af52088b7fc0e7a85681e7John McCall TypeSourceInfo *TInfo = 0; 1566b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Sema::GetTypeFromParser(DS.getRepAsType(), &TInfo); 156733500955d731c73717af52088b7fc0e7a85681e7John McCall if (TInfo) { 156833500955d731c73717af52088b7fc0e7a85681e7John McCall TL.copy(cast<DependentTemplateSpecializationTypeLoc>( 156933500955d731c73717af52088b7fc0e7a85681e7John McCall TInfo->getTypeLoc())); 157033500955d731c73717af52088b7fc0e7a85681e7John McCall return; 157133500955d731c73717af52088b7fc0e7a85681e7John McCall } 157233500955d731c73717af52088b7fc0e7a85681e7John McCall } 157333500955d731c73717af52088b7fc0e7a85681e7John McCall TL.initializeLocal(SourceLocation()); 157433500955d731c73717af52088b7fc0e7a85681e7John McCall TL.setKeywordLoc(Keyword != ETK_None 157533500955d731c73717af52088b7fc0e7a85681e7John McCall ? DS.getTypeSpecTypeLoc() 157633500955d731c73717af52088b7fc0e7a85681e7John McCall : SourceLocation()); 157733500955d731c73717af52088b7fc0e7a85681e7John McCall const CXXScopeSpec& SS = DS.getTypeSpecScope(); 157833500955d731c73717af52088b7fc0e7a85681e7John McCall TL.setQualifierRange(SS.isEmpty() ? SourceRange() : SS.getRange()); 157933500955d731c73717af52088b7fc0e7a85681e7John McCall // FIXME: load appropriate source location. 1580e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeLoc()); 1581e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1582e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 158351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 158451bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 158551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.initialize(DS.getTypeSpecTypeLoc()); 158651bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 158751bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 1588eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 158951bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 159051bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 1591f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 159251bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 159351bd803fbdade51d674598ed45da3d54190a656cJohn McCall DeclaratorLocFiller(const DeclaratorChunk &Chunk) : Chunk(Chunk) {} 15944adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 159551bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 15969f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 159751bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 15984adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 159951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 160051bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 160151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 16024adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 160351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 160451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 160551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 16064adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 160751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 160851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 160951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 16104adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 161151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 161251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 161351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 161451bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: nested name specifier 16154adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 161651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 161751bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 161854e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 161954e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 162051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 162151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 162251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 162351bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 162451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 162551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 162651bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 162751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 162851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 162951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 163051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 163151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 163251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 163351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 163451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 163551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLParenLoc(Chunk.Loc); 163651bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRParenLoc(Chunk.EndLoc); 163751bd803fbdade51d674598ed45da3d54190a656cJohn McCall 163851bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 163954e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 1640d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParmVarDecl *Param = cast<ParmVarDecl>(FTI.ArgInfo[i].Param); 164154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 16424adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 164351bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 16444adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 16451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 164651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 16479f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 16484adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 164951bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 165051bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 16514adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 1652a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 165351bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 165451bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 165505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// 165605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// \param ReturnTypeInfo For declarators whose return type does not show 165705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// up in the normal place in the declaration specifiers (such as a C++ 165805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// conversion function), this pointer will refer to a type source information 165905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// for that return type. 1660a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 166105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas GregorSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T, 166205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo) { 1663a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 1664a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 166551bd803fbdade51d674598ed45da3d54190a656cJohn McCall 16668ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 166751bd803fbdade51d674598ed45da3d54190a656cJohn McCall DeclaratorLocFiller(D.getTypeObject(i)).Visit(CurrTL); 166851bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 16694adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 1670f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 1671b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // If we have different source information for the return type, use 1672b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall // that. This really only applies to C++ conversion functions. 1673b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ReturnTypeInfo) { 167405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeLoc TL = ReturnTypeInfo->getTypeLoc(); 167505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); 167605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); 1677b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } else { 1678b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall TypeSpecLocFiller(D.getDeclSpec()).Visit(CurrTL); 167905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor } 168005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 1681a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 16824adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 16834adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 1684a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 1685b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCallParsedType Sema::CreateParsedType(QualType T, TypeSourceInfo *TInfo) { 16861bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 16871bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 16881bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 16891bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 8); 1690a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 16911bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 16921bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 1693b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return ParsedType::make(QualType(LocT, 0)); 16941bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 16951bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 16961bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 16971bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 169835d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis assert(false && "LocInfoType leaked into the type system; an opaque TypeTy*" 169935d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 170035d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 17011bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 17021bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 1703f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallTypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 17045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 17055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 17065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 17071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1708402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor TagDecl *OwnedTag = 0; 1709bf1a028246d884a540aeafa38e89be59a269b072John McCall TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S, &OwnedTag); 1710bf1a028246d884a540aeafa38e89be59a269b072John McCall QualType T = TInfo->getType(); 17115153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 1712809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 17135912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 1714402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus) { 1715402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 17166d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 17176d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor 1718402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++0x [dcl.type]p3: 1719402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // A type-specifier-seq shall not define a class or enumeration 1720402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // unless it appears in the type-id of an alias-declaration 1721402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // (7.1.3). 1722402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (OwnedTag && OwnedTag->isDefinition()) 1723402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(OwnedTag->getLocation(), diag::err_type_defined_in_type_specifier) 1724402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(OwnedTag); 1725402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 1726402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 1727b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return CreateParsedType(T, TInfo); 17285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 17295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1730c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1731c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1732c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 1733c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 1734c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 1735232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 1736232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 1737c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 1738c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 17391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 1740c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 17410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1742232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 1743232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Clause 6.7.3 - Type qualifiers: "No type shall be qualified by qualifiers 1744232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // for two or more different address spaces." 1745232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 1746c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 1747e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1748c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1749232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 17501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1751232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 1752545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 1753f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1754e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1755c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1756232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 1757545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *ASArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1758232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 1759ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (ASArgExpr->isTypeDependent() || ASArgExpr->isValueDependent() || 1760ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 1761dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_space_not_int) 1762dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner << ASArgExpr->getSourceRange(); 1763e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1764c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1765232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 1766232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 1767efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 1768efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 1769efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 1770efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 1771efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 1772e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1773efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 1774efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1775efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 1776efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1777efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 17780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 1779efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 1780efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 17810953e767ff7817f97b3ab20896b229891eeff45bJohn McCall << Qualifiers::MaxAddressSpace << ASArgExpr->getSourceRange(); 1782e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1783efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 1784efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1785efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 17861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 1787f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 1788c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 1789c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1790d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian/// HandleObjCGCTypeAttribute - Process an objc's gc attribute on the 1791d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian/// specified type. The attribute contains 1 argument, weak or strong. 17921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleObjCGCTypeAttribute(QualType &Type, 17933b6b83b8311ecdfa43cbb37ccc38c107d3b8d88bChris Lattner const AttributeList &Attr, Sema &S) { 17940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Type.getObjCGCAttr() != Qualifiers::GCNone) { 17955934e75d98d99374f72722a69c5eefe026f35c74Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_multiple_objc_gc); 1796e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1797d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1798d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 17991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1800d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 18011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Attr.getParameterName()) { 1802ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 1803ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian << "objc_gc" << 1; 1804e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1805ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian return; 1806ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 18070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 1808ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian if (Attr.getNumArgs() != 0) { 1809d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1810e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1811d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1812d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 18131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (Attr.getParameterName()->isStr("weak")) 18140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 1815d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else if (Attr.getParameterName()->isStr("strong")) 18160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 1817d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 1818d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 1819d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian << "objc_gc" << Attr.getParameterName(); 1820e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1821d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1822d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 18231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18243b6b83b8311ecdfa43cbb37ccc38c107d3b8d88bChris Lattner Type = S.Context.getObjCGCQualType(Type, GCAttr); 1825d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1826d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 182704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall/// Process an individual function attribute. Returns true if the 182804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall/// attribute does not make sense to apply to this type. 182904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallbool ProcessFnAttr(Sema &S, QualType &Type, const AttributeList &Attr) { 183004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (Attr.getKind() == AttributeList::AT_noreturn) { 183104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Complain immediately if the arg count is wrong. 183204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (Attr.getNumArgs() != 0) { 183304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1834e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 183504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 183604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 18372455636163fdd18581d7fdae816433f886d88213Mike Stump 183804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if this is not a function or pointer to block. 183904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!Type->isFunctionPointerType() 184004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall && !Type->isBlockPointerType() 1841afac01d7e76f28d5e5a5c377369cc400919387eeDouglas Gregor && !Type->isFunctionType() 1842afac01d7e76f28d5e5a5c377369cc400919387eeDouglas Gregor && !Type->isMemberFunctionPointerType()) 184304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 184458f281f7d54976f23ed4fa23a10ff1ab9c7037feTed Kremenek 184504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise we can process right away. 184604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Type = S.Context.getNoReturnType(Type); 184704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 184804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 18492455636163fdd18581d7fdae816433f886d88213Mike Stump 1850425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (Attr.getKind() == AttributeList::AT_regparm) { 1851425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // The warning is emitted elsewhere 1852425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (Attr.getNumArgs() != 1) { 1853425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return false; 1854425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 1855425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1856425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Delay if this is not a function or pointer to block. 1857425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (!Type->isFunctionPointerType() 1858425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola && !Type->isBlockPointerType() 1859afac01d7e76f28d5e5a5c377369cc400919387eeDouglas Gregor && !Type->isFunctionType() 1860afac01d7e76f28d5e5a5c377369cc400919387eeDouglas Gregor && !Type->isMemberFunctionPointerType()) 1861425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return true; 1862425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1863425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 1864425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 1865425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola llvm::APSInt NumParams(32); 1866425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1867425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // The warning is emitted elsewhere 1868ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 1869ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) 1870425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return false; 1871425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1872425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola Type = S.Context.getRegParmType(Type, NumParams.getZExtValue()); 1873425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return false; 1874425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 1875425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 187604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 187704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (Attr.getNumArgs() != 0) { 187804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1879e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 188004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 188104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 1882f82b4e85b1219295cad4b5851b035575bc293010John McCall 188304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall QualType T = Type; 188404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (const PointerType *PT = Type->getAs<PointerType>()) 188504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall T = PT->getPointeeType(); 1886afac01d7e76f28d5e5a5c377369cc400919387eeDouglas Gregor else if (const BlockPointerType *BPT = Type->getAs<BlockPointerType>()) 1887afac01d7e76f28d5e5a5c377369cc400919387eeDouglas Gregor T = BPT->getPointeeType(); 1888afac01d7e76f28d5e5a5c377369cc400919387eeDouglas Gregor else if (const MemberPointerType *MPT = Type->getAs<MemberPointerType>()) 1889afac01d7e76f28d5e5a5c377369cc400919387eeDouglas Gregor T = MPT->getPointeeType(); 1890afac01d7e76f28d5e5a5c377369cc400919387eeDouglas Gregor else if (const ReferenceType *RT = Type->getAs<ReferenceType>()) 1891afac01d7e76f28d5e5a5c377369cc400919387eeDouglas Gregor T = RT->getPointeeType(); 189204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall const FunctionType *Fn = T->getAs<FunctionType>(); 189304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 189404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if the type didn't work out to a function. 189504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!Fn) return true; 189604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 189704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // TODO: diagnose uses of these conventions on the wrong target. 189804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall CallingConv CC; 189904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall switch (Attr.getKind()) { 190004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: CC = CC_C; break; 190104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; 190204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; 1903f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; 190452fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: CC = CC_X86Pascal; break; 190504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall default: llvm_unreachable("unexpected attribute kind"); return false; 190604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 190704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 190804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall CallingConv CCOld = Fn->getCallConv(); 1909064f7db69def9299f5f4d9a32114afc10b6a6420Charles Davis if (S.Context.getCanonicalCallConv(CC) == 1910e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Context.getCanonicalCallConv(CCOld)) { 1911e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1912e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return false; 1913e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 191404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 191504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CCOld != CC_Default) { 191604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Should we diagnose reapplications of the same convention? 191704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 191804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC) 191904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CCOld); 1920e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 192104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 192204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 192304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 192404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 192504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 192604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (isa<FunctionNoProtoType>(Fn)) { 192704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_cconv_knr) 192804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 1929e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 193004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 193104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 193204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 193304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(Fn); 193404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 193504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_cconv_varargs) 193604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 1937e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 193804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 193904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 194004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 1941f82b4e85b1219295cad4b5851b035575bc293010John McCall 194204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Type = S.Context.getCallConvType(Type, CC); 194304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 1944f82b4e85b1219295cad4b5851b035575bc293010John McCall} 1945f82b4e85b1219295cad4b5851b035575bc293010John McCall 19466e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 19476e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 19486e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 19496e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 19506e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 19516e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 19526e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 1953788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattnerstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, 1954788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner Sema &S) { 19556e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Check the attribute arugments. 19566e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 19576e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1958e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 19596e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 19606e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 19616e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 19626e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 1963ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 1964ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 19656e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 19666e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << "vector_size" << sizeExpr->getSourceRange(); 1967e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 19686e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 19696e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 19706e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the base type must be integer or float, and can't already be a vector. 1971f60946222721d9ba3c059563935c17b84703187aDouglas Gregor if (!CurType->isIntegerType() && !CurType->isRealFloatingType()) { 19726e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 1973e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 19746e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 19756e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 19766e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 19776e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 19786e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 19796e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 19806e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 19816e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 19826e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 19836e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 1984e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 19856e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 19866e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 19876e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 19886e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 19896e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 1990e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 19916e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 19926e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 19936e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 19946e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 19956e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 1996788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, 1997788b0fd67e1992f23555454efcdb16a19dfefac3Chris Lattner VectorType::NotAltiVec); 19986e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 19996e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 200004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallvoid ProcessTypeAttributeList(Sema &S, QualType &Result, 2001328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis bool IsDeclSpec, const AttributeList *AL, 200204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DelayedAttributeSet &FnAttrs) { 2003c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 2004c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 2005c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 2006c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 2007c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner for (; AL; AL = AL->getNext()) { 2008e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Skip attributes that were marked to be invalid. 2009e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara if (AL->isInvalid()) 2010e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara continue; 2011e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2012b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 2013b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 2014c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner switch (AL->getKind()) { 2015c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner default: break; 201604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 2017c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner case AttributeList::AT_address_space: 201804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall HandleAddressSpaceTypeAttribute(Result, *AL, S); 2019c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 2020d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian case AttributeList::AT_objc_gc: 202104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall HandleObjCGCTypeAttribute(Result, *AL, S); 2022d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 202304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_vector_size: 202404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall HandleVectorSizeAttr(Result, *AL, S); 2025f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 202604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 202704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_noreturn: 202804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 202904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 2030f82b4e85b1219295cad4b5851b035575bc293010John McCall case AttributeList::AT_stdcall: 2031f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 203252fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 2033425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola case AttributeList::AT_regparm: 2034328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis // Don't process these on the DeclSpec. 2035328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis if (IsDeclSpec || 2036328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessFnAttr(S, Result, *AL)) 203704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall FnAttrs.push_back(DelayedAttribute(AL, Result)); 20386e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 2039c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 2040c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 2041232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 2042232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 20431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 20444ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 20454ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 20464ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 204786447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 204886447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 204986447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 205086447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 205186447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 20524ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 20534ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 20544ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 20554ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 20564ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 20574ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 20581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @param PD The partial diagnostic that will be printed out if T is not a 2059b790661a15d93941d2c33a0ea328254277b3d7e3Anders Carlsson/// complete type. 20604ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 20614ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 20624ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 206391a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 20648c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson const PartialDiagnostic &PD, 20658c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson std::pair<SourceLocation, 20668c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson PartialDiagnostic> Note) { 206791a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson unsigned diag = PD.getDiagID(); 20681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2069573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 2070573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 2071690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 2072690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 2073690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 20741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 2075690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 2076690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 20774ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 20784ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (!T->isIncompleteType()) 20794ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 20804ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 2081d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 2082923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 2083923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 2084923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 208589c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor if (const ConstantArrayType *Array = Context.getAsConstantArrayType(T)) 2086923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 2087923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 20882943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 2089d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 2090972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 2091972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 2092d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 20935842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor /*Complain=*/diag != 0); 20941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 2095d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 2096d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass()) { 2097b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor MemberSpecializationInfo *MSInfo = Rec->getMemberSpecializationInfo(); 2098b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor assert(MSInfo && "Missing member specialization information?"); 2099357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 2100b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor if (MSInfo->getTemplateSpecializationKind() 2101972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor != TSK_ExplicitSpecialization) 2102f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 2103f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 2104f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 2105f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor /*Complain=*/diag != 0); 2106d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 2107d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 2108d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 21092943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 21105842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor if (diag == 0) 21115842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 21121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 211301620704304f819b82ecef769ec114e541a364d7Rafael Espindola const TagType *Tag = 0; 211401620704304f819b82ecef769ec114e541a364d7Rafael Espindola if (const RecordType *Record = T->getAs<RecordType>()) 211501620704304f819b82ecef769ec114e541a364d7Rafael Espindola Tag = Record; 211601620704304f819b82ecef769ec114e541a364d7Rafael Espindola else if (const EnumType *Enum = T->getAs<EnumType>()) 211701620704304f819b82ecef769ec114e541a364d7Rafael Espindola Tag = Enum; 211801620704304f819b82ecef769ec114e541a364d7Rafael Espindola 211901620704304f819b82ecef769ec114e541a364d7Rafael Espindola // Avoid diagnosing invalid decls as incomplete. 212001620704304f819b82ecef769ec114e541a364d7Rafael Espindola if (Tag && Tag->getDecl()->isInvalidDecl()) 212101620704304f819b82ecef769ec114e541a364d7Rafael Espindola return true; 212201620704304f819b82ecef769ec114e541a364d7Rafael Espindola 21234ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 212491a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson Diag(Loc, PD) << T; 21253c0eb160ca1361a82b9f15b3b40a2425adc14d0fEli Friedman 21268c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson // If we have a note, produce it. 21278c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson if (!Note.first.isInvalid()) 21288c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson Diag(Note.first, Note.second); 21298c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson 21304ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 213101620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 21324ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 21331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 21344ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 21354ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 21364ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor << QualType(Tag, 0); 21374ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 21384ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 21394ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 2140e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 2141fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 2142fe6b2d481d91140923f4541f273b253291884214Douglas Gregor const PartialDiagnostic &PD) { 2143fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PD, 2144fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 2145fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 2146fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 2147fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 2148fe6b2d481d91140923f4541f273b253291884214Douglas Gregor unsigned DiagID) { 2149fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PDiag(DiagID), 2150fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 2151fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 2152fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 2153465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Retrieve a version of the type 'T' that is elaborated by Keyword 2154465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// and qualified by the nested-name-specifier contained in SS. 2155465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraQualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, 2156465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara const CXXScopeSpec &SS, QualType T) { 2157465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (T.isNull()) 2158e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 2159465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS; 2160e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (SS.isValid()) 2161465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 2162465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara else { 2163465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (Keyword == ETK_None) 2164465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T; 2165465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = 0; 2166465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 2167465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return Context.getElaboratedType(Keyword, NNS, T); 2168e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 2169af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 2170af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders CarlssonQualType Sema::BuildTypeofExprType(Expr *E) { 21714b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (E->getType() == Context.OverloadTy) { 21724b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // C++ [temp.arg.explicit]p3 allows us to resolve a template-id to a 21734b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // function template specialization wherever deduction cannot occur. 21744b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (FunctionDecl *Specialization 21754b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor = ResolveSingleFunctionTemplateSpecialization(E)) { 2176161755a09898c95d21bfff33707da9ca41cd53c5John McCall // The access doesn't really matter in this case. 2177161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair Found = DeclAccessPair::make(Specialization, 2178161755a09898c95d21bfff33707da9ca41cd53c5John McCall Specialization->getAccess()); 2179161755a09898c95d21bfff33707da9ca41cd53c5John McCall E = FixOverloadedFunctionReference(E, Found, Specialization); 21804b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (!E) 21814b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 21824b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } else { 21834b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Diag(E->getLocStart(), 21844b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor diag::err_cannot_determine_declared_type_of_overloaded_function) 21854b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor << false << E->getSourceRange(); 21864b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 21874b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 21884b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 21894b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 2190af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 2191af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 2192af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 2193af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders CarlssonQualType Sema::BuildDecltypeType(Expr *E) { 2194af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (E->getType() == Context.OverloadTy) { 21954b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // C++ [temp.arg.explicit]p3 allows us to resolve a template-id to a 21964b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // function template specialization wherever deduction cannot occur. 21974b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (FunctionDecl *Specialization 21984b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor = ResolveSingleFunctionTemplateSpecialization(E)) { 2199161755a09898c95d21bfff33707da9ca41cd53c5John McCall // The access doesn't really matter in this case. 2200161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair Found = DeclAccessPair::make(Specialization, 2201161755a09898c95d21bfff33707da9ca41cd53c5John McCall Specialization->getAccess()); 2202161755a09898c95d21bfff33707da9ca41cd53c5John McCall E = FixOverloadedFunctionReference(E, Found, Specialization); 22034b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (!E) 22044b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 22054b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } else { 22064b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Diag(E->getLocStart(), 22074b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor diag::err_cannot_determine_declared_type_of_overloaded_function) 22084b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor << true << E->getSourceRange(); 22094b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 22104b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 2211af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 22124b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 2213af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getDecltypeType(E); 2214af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 2215