SemaType.cpp revision 2865474261a608c7873b87ba4af110d17907896d
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 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "Sema.h" 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 16a8f32e0965ee19ecc53cd796e34268377a20357cDouglas Gregor#include "clang/AST/CXXInheritance.h" 17980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 182943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor#include "clang/AST/DeclTemplate.h" 194adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 2051bd803fbdade51d674598ed45da3d54190a656cJohn McCall#include "clang/AST/TypeLocVisitor.h" 21e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 2291a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson#include "clang/Basic/PartialDiagnostic.h" 23e4858a65a93fb36c099d8dd2ea0a98e33e77687eDaniel Dunbar#include "clang/Parse/DeclSpec.h" 244994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl#include "llvm/ADT/SmallPtrSet.h" 2587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor#include "llvm/Support/ErrorHandling.h" 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara#include <iostream> 29e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 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: { 269c7621a64717203e1f7d5d79dbf548e590b32596cDouglas Gregor TypeDecl *D 270c7621a64717203e1f7d5d79dbf548e590b32596cDouglas Gregor = dyn_cast_or_null<TypeDecl>(static_cast<Decl *>(DS.getTypeRep())); 2716e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 2726e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 2736e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 2745db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 2756e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 2766e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 2776e24726524c2b51b31bb4b622aa678a46b024f42John McCall 278a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 27954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall TheSema.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeLoc()); 280a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 282a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 283a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 2845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 285a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 2862191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 2872191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall // In C++, make an ElaboratedType. 2881564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().CPlusPlus) { 289465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ElaboratedTypeKeyword Keyword 290465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara = ElaboratedType::getKeywordForTypeSpec(DS.getTypeSpecType()); 291465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara Result = TheSema.getElaboratedType(Keyword, DS.getTypeSpecScope(), 292465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara Result); 2932191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall } 2945153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D->isInvalidDecl()) 2955db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 296958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 2971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 2981a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 3021564e3906cad604a42bd131e584751a75589a9c4Chris Lattner Result = TheSema.GetTypeFromParser(DS.getTypeRep()); 3032ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 3041a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 305c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (const ObjCObjectType *ObjT = Result->getAs<ObjCObjectType>()) { 306c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Silently drop any existing protocol qualifiers. 307c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // TODO: determine whether that's the right thing to do. 308c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (ObjT->getNumProtocols()) 309c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = ObjT->getBaseType(); 310c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall 311c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getNumProtocolQualifiers()) 312c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Result, 313c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 314c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 315c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCIdType()) { 316ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 317c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy, 318c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 319c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 320c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 321c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (Result->isObjCClassType()) { 3224262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 323c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy, 324c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall (ObjCProtocolDecl**) PQ, 325c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall DS.getNumProtocolQualifiers()); 326c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Result = Context.getObjCObjectPointerType(Result); 3273f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 3281564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 3293f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 3305db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 3313f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 332c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 3331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 335958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 337958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 338e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 3391564e3906cad604a42bd131e584751a75589a9c4Chris Lattner Result = TheSema.GetTypeFromParser(DS.getTypeRep()); 340958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 341d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 342fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 343958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 344d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 345d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff Expr *E = static_cast<Expr *>(DS.getTypeRep()); 346d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 347d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 3484b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = TheSema.BuildTypeofExprType(E); 3494b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 3504b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 3514b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor TheDeclarator.setInvalidType(true); 3524b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 353958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 354d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 3556fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 3566fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson Expr *E = static_cast<Expr *>(DS.getTypeRep()); 3576fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 3586fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 3591564e3906cad604a42bd131e584751a75589a9c4Chris Lattner Result = TheSema.BuildDecltypeType(E); 360af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 361af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 3625db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 363af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 3646fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 3656fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 366e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson case DeclSpec::TST_auto: { 367e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 368e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson Result = Context.UndeducedAutoTy; 369e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 370e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson } 3711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 372809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 3735153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 3745db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 3755153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 3765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 378958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 379f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 3801564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().Freestanding) 3811564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 382fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 38382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 38482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 38582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 38682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Result = Context.getVectorType(Result, 128/typeSize, true, 38782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson DS.isTypeAltiVecPixel()); 388f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 3891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 390958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(DS.getTypeSpecComplex() != DeclSpec::TSC_imaginary && 391958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner "FIXME: imaginary types not supported yet!"); 3921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39338d8b98803ac354dba15578d65ea99a83dead046Chris Lattner // See if there are any attributes on the declspec that apply to the type (as 39438d8b98803ac354dba15578d65ea99a83dead046Chris Lattner // opposed to the decl). 395fca0ddd42965e0b7ae821213486d4e0dd71fb439Chris Lattner if (const AttributeList *AL = DS.getAttributes()) 396328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessTypeAttributeList(TheSema, Result, true, AL, Delayed); 3971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 39996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 40096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 40196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Enforce C99 6.7.3p2: "Types other than pointer types derived from object 40296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // or incomplete types shall not be restrict-qualified." C++ also allows 40396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // restrict-qualified references. 4040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_restrict) { 4052b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isAnyPointerType() || Result->isReferenceType()) { 4062b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian QualType EltTy; 4072b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isObjCObjectPointerType()) 4082b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result; 4092b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian else 4102b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result->isPointerType() ? 4112b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<PointerType>()->getPointeeType() : 4122b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<ReferenceType>()->getPointeeType(); 4131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 414bad0e656c3732e3539a9cd6525de721d7e47408bDouglas Gregor // If we have a pointer or reference, the pointee must have an object 415bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner // incomplete type. 416bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner if (!EltTy->isIncompleteOrObjectType()) { 4171564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getRestrictSpecLoc(), 418d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_invalid_pointee) 419d162584991885ab004a02573a73ce06422b921fcChris Lattner << EltTy << DS.getSourceRange(); 4200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 421bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } 422bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } else { 4231564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getRestrictSpecLoc(), 424d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_not_pointer) 425d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 4260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 42796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 42896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 43096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 43196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 43296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 43396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 43496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Get some location to point at, either the C or V location. 43596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner SourceLocation Loc; 4360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 43796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getConstSpecLoc(); 4380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 43996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getVolatileSpecLoc(); 4400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 4410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((TypeQuals & DeclSpec::TQ_restrict) && 4420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Has CVR quals but not C, V, or R?"); 4430953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Loc = DS.getRestrictSpecLoc(); 44496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4451564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(Loc, diag::warn_typecheck_function_qualifiers) 446d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 44796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 449f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 450f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 451f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 452f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 453f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 4541a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 4551a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 456f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 4570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 4580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 4591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(TypeQuals); 4620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Result = Context.getQualifiedType(Result, Quals); 46396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 465f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 466f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 467f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 468cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 469cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 470cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 4711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 472cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 473cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 474cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 4752865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildQualifiedType(QualType T, SourceLocation Loc, 4762865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Qs) { 4772865474261a608c7873b87ba4af110d17907896dJohn McCall // Enforce C99 6.7.3p2: "Types other than pointer types derived from 4782865474261a608c7873b87ba4af110d17907896dJohn McCall // object or incomplete types shall not be restrict-qualified." 4792865474261a608c7873b87ba4af110d17907896dJohn McCall if (Qs.hasRestrict()) { 4802865474261a608c7873b87ba4af110d17907896dJohn McCall unsigned DiagID = 0; 4812865474261a608c7873b87ba4af110d17907896dJohn McCall QualType ProblemTy; 4822865474261a608c7873b87ba4af110d17907896dJohn McCall 4832865474261a608c7873b87ba4af110d17907896dJohn McCall const Type *Ty = T->getCanonicalTypeInternal().getTypePtr(); 4842865474261a608c7873b87ba4af110d17907896dJohn McCall if (const ReferenceType *RTy = dyn_cast<ReferenceType>(Ty)) { 4852865474261a608c7873b87ba4af110d17907896dJohn McCall if (!RTy->getPointeeType()->isIncompleteOrObjectType()) { 4862865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 4872865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<ReferenceType>()->getPointeeType(); 4882865474261a608c7873b87ba4af110d17907896dJohn McCall } 4892865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) { 4902865474261a608c7873b87ba4af110d17907896dJohn McCall if (!PTy->getPointeeType()->isIncompleteOrObjectType()) { 4912865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 4922865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T->getAs<PointerType>()->getPointeeType(); 4932865474261a608c7873b87ba4af110d17907896dJohn McCall } 4942865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (const MemberPointerType *PTy = dyn_cast<MemberPointerType>(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 (!Ty->isDependentType()) { 5002865474261a608c7873b87ba4af110d17907896dJohn McCall // FIXME: this deserves a proper diagnostic 5012865474261a608c7873b87ba4af110d17907896dJohn McCall DiagID = diag::err_typecheck_invalid_restrict_invalid_pointee; 5022865474261a608c7873b87ba4af110d17907896dJohn McCall ProblemTy = T; 5032865474261a608c7873b87ba4af110d17907896dJohn McCall } 5042865474261a608c7873b87ba4af110d17907896dJohn McCall 5052865474261a608c7873b87ba4af110d17907896dJohn McCall if (DiagID) { 5062865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(Loc, DiagID) << ProblemTy; 5072865474261a608c7873b87ba4af110d17907896dJohn McCall Qs.removeRestrict(); 5082865474261a608c7873b87ba4af110d17907896dJohn McCall } 5092865474261a608c7873b87ba4af110d17907896dJohn McCall } 5102865474261a608c7873b87ba4af110d17907896dJohn McCall 5112865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getQualifiedType(T, Qs); 5122865474261a608c7873b87ba4af110d17907896dJohn McCall} 5132865474261a608c7873b87ba4af110d17907896dJohn McCall 514cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 515cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 516cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 517cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 518cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 519cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 520cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 521cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 522cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 523cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 524cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 525cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 526cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 5272865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildPointerType(QualType T, 528cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 529cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 530cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 531cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 532ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 533cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 534cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 535cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 536c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall assert(!T->isObjCObjectType() && "Should build ObjCObjectPointerType"); 53792e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 538cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 5392865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getPointerType(T); 540cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 541cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 542cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 543cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 544cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 545cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 546cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 547cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 548cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 549cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 550cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 551cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 552cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 553cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 554cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 55554e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 5562865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 55754e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 55854e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 55954e14c4db764c0636160d26c5bbf491637c83a76John McCall 56054e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++0x [dcl.typedef]p9: If a typedef TD names a type that is a 56154e14c4db764c0636160d26c5bbf491637c83a76John McCall // reference to a type T, and attempt to create the type "lvalue 56254e14c4db764c0636160d26c5bbf491637c83a76John McCall // reference to cv TD" creates the type "lvalue reference to T". 56354e14c4db764c0636160d26c5bbf491637c83a76John McCall // We use the qualifiers (restrict or none) of the original reference, 56454e14c4db764c0636160d26c5bbf491637c83a76John McCall // not the new ones. This is consistent with GCC. 56554e14c4db764c0636160d26c5bbf491637c83a76John McCall 56654e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 56754e14c4db764c0636160d26c5bbf491637c83a76John McCall // 56854e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 56954e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 57054e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 57154e14c4db764c0636160d26c5bbf491637c83a76John McCall // 57254e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 57354e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 57454e14c4db764c0636160d26c5bbf491637c83a76John McCall // 57554e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 57654e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 57754e14c4db764c0636160d26c5bbf491637c83a76John McCall // collapsing of references-to-references as described in C++ 57854e14c4db764c0636160d26c5bbf491637c83a76John McCall // DR 106 and amended by C++ DR 540. 579cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 580cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 58133a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 582cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 583cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 584cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 585cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 586cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 587cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 588cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 5897c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 5902865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getLValueReferenceType(T, SpelledAsLValue); 5912865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getRValueReferenceType(T); 592cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 593cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 594cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 595cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 596cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 597cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 598cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 5991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 6001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 601cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 602cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 603cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// array type or, if there is no such entity, the location of the 604cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have array type. 605cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 606cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 607cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 608cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 609cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 610cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 611cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 612cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 6137e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 6140953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 6157e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 616923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (getLangOptions().CPlusPlus) { 617138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 618138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 619138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // type, the (possibly cv-qualified) type void, a function type or an 620138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 621138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 622138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 623138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 624138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 625138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 626138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 627138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 628138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 629923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (T->isVoidType()) { 630923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 631923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 632923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 633138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 634138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (RequireNonAbstractType(Brackets.getBegin(), T, 635138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 636138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 637138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 638923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 639138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 640138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 641923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 642923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 643923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 644923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 645cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 646cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 647cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 648ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 649cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 650cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 6511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 652e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson if (Context.getCanonicalType(T) == Context.UndeducedAutoTy) { 6531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, diag::err_illegal_decl_array_of_auto) 654e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson << getPrintableNameForEntity(Entity); 655e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson return QualType(); 656e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson } 6571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6586217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 659cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 660cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 661cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 662cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 663c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else if (T->isObjCObjectType()) { 664c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 665c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 666cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 6671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 668cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 669cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (ArraySize && !ArraySize->isTypeDependent() && 670cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor !ArraySize->getType()->isIntegerType()) { 671cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 672cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 673cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor ArraySize->Destroy(Context); 674cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 675cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 676cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor llvm::APSInt ConstVal(32); 677cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 678f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 6797e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 680f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 681f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 682ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor } else if (ArraySize->isTypeDependent() || ArraySize->isValueDependent()) { 6837e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 684cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else if (!ArraySize->isIntegerConstantExpr(ConstVal, Context) || 685923d56d436f750bc1f29db50e641078725558a1bSebastian Redl (!T->isDependentType() && !T->isIncompleteType() && 686923d56d436f750bc1f29db50e641078725558a1bSebastian Redl !T->isConstantSizeType())) { 687cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Per C99, a variable array is an array with either a non-constant 688cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // size or an element type that has a non-constant-size 6897e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 690cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 691cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 692cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 693923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 694923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(ArraySize->getLocStart(), 695923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_typecheck_negative_array_size) 696923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 697923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 698923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 699923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 70002024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 70102024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 70202024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor Diag(ArraySize->getLocStart(), 70302024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 70402024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 705923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 7061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 70746a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 708cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 709af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 710af40776922bc5c28e740adb0342faa09f35b0068David Chisnall if (!getLangOptions().C99) { 7110fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor if (T->isVariableArrayType()) { 7120fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Prohibit the use of non-POD types in VLAs. 713204ce17e0cfd9bbe229627e1e5a20c3f2f587c8cDouglas Gregor if (!T->isDependentType() && 714204ce17e0cfd9bbe229627e1e5a20c3f2f587c8cDouglas Gregor !Context.getBaseElementType(T)->isPODType()) { 7150fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::err_vla_non_pod) 7160fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor << Context.getBaseElementType(T); 7170fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor return QualType(); 7180fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } 719a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor // Prohibit the use of VLAs during template argument deduction. 720a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor else if (isSFINAEContext()) { 721a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor Diag(Loc, diag::err_vla_in_sfinae); 722a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor return QualType(); 723a481ec4150ad203440852a2bfee0883dd26f7530Douglas Gregor } 7240fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor // Just extwarn about VLAs. 7250fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor else 7260fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor Diag(Loc, diag::ext_vla); 7270fddb97901dbe36a8253dee29961cba8e0a87cf6Douglas Gregor } else if (ASM != ArrayType::Normal || Quals != 0) 728043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor Diag(Loc, 729043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor getLangOptions().CPlusPlus? diag::err_c99_array_usage_cxx 730043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor : diag::ext_c99_array_usage); 731cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 732cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 733cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 734cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 7359cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7369cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 7379cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 7389cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 7391eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildExtVectorType(QualType T, ExprArg ArraySize, 7409cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 7419cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7429cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *Arg = (Expr *)ArraySize.get(); 7439cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7449cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 7459cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 7461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 7479cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 7489cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 7499cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 7509cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 7519cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7529cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!Arg->isTypeDependent() && !Arg->isValueDependent()) { 7539cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 7549cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!Arg->isIntegerConstantExpr(vecSize, Context)) { 7559cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_argument_not_int) 7569cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor << "ext_vector_type" << Arg->getSourceRange(); 7579cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 7589cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 7591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 7619cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 7621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 7631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7649cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 7659cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 7669cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor << Arg->getSourceRange(); 7679cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 7689cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 7691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7709cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T->isDependentType()) 7719cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return Context.getExtVectorType(T, vectorSize); 7721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Context.getDependentSizedExtVectorType(T, ArraySize.takeAs<Expr>(), 7759cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor AttrLoc); 7769cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 7771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 778724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \brief Build a function type. 779724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 780724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// This routine checks the function type according to C++ rules and 781724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// under the assumption that the result type and parameter types have 782724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// just been instantiated from a template. It therefore duplicates 7832943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor/// some of the behavior of GetTypeForDeclarator, but in a much 784724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// simpler form that is only suitable for this narrow use case. 785724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 786724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param T The return type of the function. 787724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 788724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param ParamTypes The parameter types of the function. This array 789724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// will be modified to account for adjustments to the types of the 790724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function parameters. 791724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 792724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param NumParamTypes The number of parameter types in ParamTypes. 793724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 794724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Variadic Whether this is a variadic function type. 795724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 796724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the function type. 797724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 798724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Loc The location of the entity whose type involves this 799724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function type or, if there is no such entity, the location of the 800724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type that will have function type. 801724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 802724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Entity The name of the entity that involves the function 803724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type, if known. 804724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 805724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \returns A suitable function type, if there are no 806724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// errors. Otherwise, returns a NULL type. 807724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas GregorQualType Sema::BuildFunctionType(QualType T, 8081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType *ParamTypes, 809724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor unsigned NumParamTypes, 810724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Variadic, unsigned Quals, 811724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 812724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 81358408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(Loc, diag::err_func_returning_array_function) 81458408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 815724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 816724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 8171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 818724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 819724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor for (unsigned Idx = 0; Idx < NumParamTypes; ++Idx) { 8202dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor QualType ParamType = adjustParameterType(ParamTypes[Idx]); 8212dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 822724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 823724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 824724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 825cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 82654e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 827724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 828724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 829724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 830724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 831724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 8321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Context.getFunctionType(T, ParamTypes, NumParamTypes, Variadic, 833264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Quals, false, false, 0, 0, 834264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo()); 835724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 8361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 837949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 838949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 839949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 840949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 8410953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR Qualifiers applied to the member pointer type 842949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 843949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 844949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 845949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 846949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 8471eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 8482865474261a608c7873b87ba4af110d17907896dJohn McCall SourceLocation Loc, 849949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 850949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 851949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 852949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 853949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 854949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 855949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 856949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 857949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 858949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 859949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 860949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 861949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 862949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 863949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // C++ 8.3.3p3: A pointer to member shall not pointer to ... a member 864949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 865949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 8668d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 867ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 868949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 869949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 870949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 871949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 872949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 873949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 874949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 875949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 876949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 877949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 878949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 879949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 880949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 881949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 8822865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getMemberPointerType(T, Class.getTypePtr()); 883949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 8841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8859a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 8869a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8879a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 8889a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR The cvr-qualifiers to be applied to the block pointer type. 8909a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8919a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Loc The location of the entity whose type involves this 8929a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// block pointer type or, if there is no such entity, the location of the 8939a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type that will have block pointer type. 8949a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8959a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 8969a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 8979a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8989a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 8999a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 9002865474261a608c7873b87ba4af110d17907896dJohn McCallQualType Sema::BuildBlockPointerType(QualType T, 9011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 9029a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 9030953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 9049a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 9059a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 9069a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 9071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9082865474261a608c7873b87ba4af110d17907896dJohn McCall return Context.getBlockPointerType(T); 9099a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 9109a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 911a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallQualType Sema::GetTypeFromParser(TypeTy *Ty, TypeSourceInfo **TInfo) { 912e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QualType QT = QualType::getFromOpaquePtr(Ty); 9133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 914a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 9153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 9163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 9173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 918a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 919e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis if (LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 920e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 921a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 922e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 9231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 924a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 925e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 926e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 927e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 92898eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump/// GetTypeForDeclarator - Convert the type for the specified 9298ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl/// declarator to Type instances. 930402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// 931402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// If OwnedDecl is non-NULL, and this declarator's decl-specifier-seq 932402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// owns the declaration of a type (e.g., the definition of a struct 933402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// type), then *OwnedDecl will receive the owned declaration. 934bf1a028246d884a540aeafa38e89be59a269b072John McCall/// 935bf1a028246d884a540aeafa38e89be59a269b072John McCall/// The result of this call will never be null, but the associated 936bf1a028246d884a540aeafa38e89be59a269b072John McCall/// type may be a null type if there's an unrecoverable error. 937bf1a028246d884a540aeafa38e89be59a269b072John McCallTypeSourceInfo *Sema::GetTypeForDeclarator(Declarator &D, Scope *S, 938bf1a028246d884a540aeafa38e89be59a269b072John McCall TagDecl **OwnedDecl) { 939930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Determine the type of the declarator. Not all forms of declarator 940930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // have a type. 941930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 94205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo = 0; 94305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 94404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall llvm::SmallVector<DelayedAttribute,4> FnAttrsFromDeclSpec; 94504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 9463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 9473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 9483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 9490486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 9503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 95104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall T = ConvertDeclSpecToType(*this, D, FnAttrsFromDeclSpec); 9525db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 953591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 954591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor TagDecl* Owned = cast<TagDecl>((Decl *)D.getDeclSpec().getTypeRep()); 955b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor // Owned is embedded if it was defined here, or if it is the 956b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor // very first (i.e., canonical) declaration of this tag type. 957b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor Owned->setEmbeddedInDeclarator(Owned->isDefinition() || 958b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor Owned->isCanonicalDecl()); 959591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (OwnedDecl) *OwnedDecl = Owned; 960591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 961930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 962930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 9633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 9640efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 9653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 966930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 96748026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // "void" instead. 968930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor T = Context.VoidTy; 969930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 97048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 97148026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 97248026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 97348026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 97405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor T = GetTypeFromParser(D.getName().ConversionFunctionId, 975bf1a028246d884a540aeafa38e89be59a269b072John McCall &ReturnTypeInfo); 97648026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 977930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 978f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 9791f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor if (T.isNull()) 980bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 9811f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor 982baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (T == Context.UndeducedAutoTy) { 983baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 9841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 985baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 986baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 987baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson assert(0 && "K&R type lists aren't allowed in C++"); 988baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 989baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 990baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 0; // Function prototype 991baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 992baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 993baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (cast<TagDecl>(CurContext)->getTagKind()) { 994465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Enum: assert(0 && "unhandled tag kind"); break; 995465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Struct: Error = 1; /* Struct member */ break; 996465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Union: Error = 2; /* Union member */ break; 997465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara case TTK_Class: Error = 3; /* Class member */ break; 9981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 999baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1000baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 1001baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 4; // Exception declaration 1002baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1003baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 1004baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 5; // Template parameter 1005baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1006baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 1007baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 6; // Block literal 1008baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1009baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 1010baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 1011baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 1012baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 1013baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TypeNameContext: 1014baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1015baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1016baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 1017baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 1018baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Diag(D.getDeclSpec().getTypeSpecTypeLoc(), diag::err_auto_not_allowed) 1019baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson << Error; 1020baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson T = Context.IntTy; 1021baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 1022baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1023baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 10241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1025cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 1026cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 1027cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 1028cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 10291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 103004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall llvm::SmallVector<DelayedAttribute,4> FnAttrsFromPreviousChunk; 103104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 103298eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 103398eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 103498eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 10358ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 10368ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl DeclaratorChunk &DeclType = D.getTypeObject(e-i-1); 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown decltype!"); 10395618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 10409af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 10419af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 10429af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner Diag(DeclType.Loc, diag::err_blocks_disable); 10431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10442865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildBlockPointerType(T, D.getIdentifierLoc(), Name); 10452865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Cls.TypeQuals) 10462865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Cls.TypeQuals); 10475618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 10485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 10496a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 10506a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 10516a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 10526a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 10536a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 10546a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 10556a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 1056c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (getLangOptions().ObjC1 && T->getAs<ObjCObjectType>()) { 1057c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall T = Context.getObjCObjectPointerType(T); 10582865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 10592865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 106014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 106114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 10622865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildPointerType(T, DeclType.Loc, Name); 10632865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ptr.TypeQuals) 10642865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Ptr.TypeQuals); 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 10676a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference 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 } 10742865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildReferenceType(T, DeclType.Ref.LValueRef, DeclType.Loc, Name); 10752865474261a608c7873b87ba4af110d17907896dJohn McCall 10762865474261a608c7873b87ba4af110d17907896dJohn McCall Qualifiers Quals; 10772865474261a608c7873b87ba4af110d17907896dJohn McCall if (DeclType.Ref.HasRestrict) 10782865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, Qualifiers::Restrict); 10795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 10815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 10826a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 10836a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 10846a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 10856a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 10866a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 10876a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 10886a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 1089fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 109094f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 1098f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star && 1099f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.getContext() != Declarator::PrototypeContext) { 1100f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 1101f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 1102f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 1103f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 1104f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 1105f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 1106f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 11070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall T = BuildArrayType(T, ASM, ArraySize, 11080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::fromCVRMask(ATI.TypeQuals), 11097e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 11105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1112f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 11173cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 1118cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner // C99 6.7.5.3p1: The return type may not be a function or array type. 111958408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor // For conversion functions, we'll diagnose this particular error later. 112048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor if ((T->isArrayType() || T->isFunctionType()) && 112148026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 112258408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(DeclType.Loc, diag::err_func_returning_array_function) 112358408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1124cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner T = Context.IntTy; 1125cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner D.setInvalidType(true); 1126cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner } 1127465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1128402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 1129402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 1130402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 1131402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor TagDecl *Tag = cast<TagDecl>((Decl *)D.getDeclSpec().getTypeRep()); 1132402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (Tag->isDefinition()) 1133402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 1134402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 1135402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 1136402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 11373cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 11383cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 11393cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl if (FTI.hasExceptionSpec && 11403cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 11413cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl Diag(FTI.getThrowLoc(), diag::err_exception_spec_in_typedef); 11423cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 11432865474261a608c7873b87ba4af110d17907896dJohn McCall if (!FTI.NumArgs && !FTI.isVariadic && !getLangOptions().CPlusPlus) { 11442865474261a608c7873b87ba4af110d17907896dJohn McCall // Simple void foo(), where the incoming T is the result type. 11452865474261a608c7873b87ba4af110d17907896dJohn McCall T = Context.getFunctionNoProtoType(T); 11462865474261a608c7873b87ba4af110d17907896dJohn McCall } else { 11472865474261a608c7873b87ba4af110d17907896dJohn McCall // We allow a zero-parameter variadic function in C if the 11482865474261a608c7873b87ba4af110d17907896dJohn McCall // function is marked with the "overloadable" attribute. Scan 11492865474261a608c7873b87ba4af110d17907896dJohn McCall // for this attribute now. 11502865474261a608c7873b87ba4af110d17907896dJohn McCall if (!FTI.NumArgs && FTI.isVariadic && !getLangOptions().CPlusPlus) { 1151965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 1152965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 1153965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 1154965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (Attrs->getKind() == AttributeList::AT_overloadable) { 1155965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 1156965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 1157965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1158965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1159965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 1160965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 1161965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 1162c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 11632865474261a608c7873b87ba4af110d17907896dJohn McCall 11642865474261a608c7873b87ba4af110d17907896dJohn McCall if (FTI.NumArgs && FTI.ArgInfo[0].Param == 0) { 11652865474261a608c7873b87ba4af110d17907896dJohn McCall // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function definition. 11662865474261a608c7873b87ba4af110d17907896dJohn McCall Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 11672865474261a608c7873b87ba4af110d17907896dJohn McCall D.setInvalidType(true); 11682865474261a608c7873b87ba4af110d17907896dJohn McCall break; 11692865474261a608c7873b87ba4af110d17907896dJohn McCall } 11702865474261a608c7873b87ba4af110d17907896dJohn McCall 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> ArgTys; 11742865474261a608c7873b87ba4af110d17907896dJohn McCall ArgTys.reserve(FTI.NumArgs); 11751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 1177b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner ParmVarDecl *Param = 1178b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner cast<ParmVarDecl>(FTI.ArgInfo[i].Param.getAs<Decl>()); 11798123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner QualType ArgTy = Param->getType(); 118078c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 11812dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 11822dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Adjust the parameter type. 1183beb58cb83bd53b79b80fc6f9952efd985934cbfcDouglas Gregor assert((ArgTy == adjustParameterType(ArgTy)) && "Unadjusted type?"); 11842dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 118772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 11882dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 11905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DeclType.Loc, diag::err_void_only_param); 11942ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 11958123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 11962ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 11972ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(FTI.ArgInfo[i].IdentLoc, 11994565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 12002ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 12018123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 12022ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 12032ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 12040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 12052ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner Diag(DeclType.Loc, diag::err_void_param_qualified); 12061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12072ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 12082ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 12092ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 1210eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 1211eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 1212a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 1213183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 1214eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (BTy->getKind() == BuiltinType::Float) 1215eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 1216eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 121954e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1221465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1222465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl llvm::SmallVector<QualType, 4> Exceptions; 1223465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl Exceptions.reserve(FTI.NumExceptions); 12241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (unsigned ei = 0, ee = FTI.NumExceptions; ei != ee; ++ei) { 1225e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 1226e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QualType ET = GetTypeFromParser(FTI.Exceptions[ei].Ty); 1227ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // Check that the type is valid for an exception spec, and drop it if 1228ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // not. 1229ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl if (!CheckSpecifiedExceptionType(ET, FTI.Exceptions[ei].Range)) 1230ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl Exceptions.push_back(ET); 1231ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 1232465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1233beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad T = Context.getFunctionType(T, ArgTys.data(), ArgTys.size(), 1234465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.isVariadic, FTI.TypeQuals, 1235465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasExceptionSpec, 1236465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasAnyExceptionSpec, 1237ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor Exceptions.size(), Exceptions.data(), 1238264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo()); 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 124004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 124104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // For GCC compatibility, we allow attributes that apply only to 124204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // function types to be placed on a function's return type 124304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // instead (as long as that type doesn't happen to be function 124404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // or function-pointer itself). 124504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall ProcessDelayedFnAttrs(*this, T, FnAttrsFromPreviousChunk); 124604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 12485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1249f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 1250f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 1251f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 1252edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (DeclType.Mem.Scope().isInvalid()) { 1253edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 1254edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 1255edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin } else if (isDependentScopeSpecifier(DeclType.Mem.Scope()) 1256edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin || dyn_cast_or_null<CXXRecordDecl>( 125787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor computeDeclContext(DeclType.Mem.Scope()))) { 12581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 1259949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor = (NestedNameSpecifier *)DeclType.Mem.Scope().getScopeRep(); 126087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 126187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 126287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 12634a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 12644a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 126587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 126687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 126787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 126887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 12699f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 127087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 127187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 127287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 127387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 127487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 127587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (NNSPrefix) 1276465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ClsType = Context.getElaboratedType(ETK_None, NNSPrefix, ClsType); 127787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 127887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 1279f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 1280949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(DeclType.Mem.Scope().getBeginLoc(), 1281949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 1282949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 1283949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 1284f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 1285f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1286f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1287949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 12882865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildMemberPointerType(T, ClsType, DeclType.Loc, D.getIdentifier()); 1289949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 1290f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 1291949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 12922865474261a608c7873b87ba4af110d17907896dJohn McCall } else if (DeclType.Mem.TypeQuals) { 12932865474261a608c7873b87ba4af110d17907896dJohn McCall T = BuildQualifiedType(T, DeclType.Loc, DeclType.Mem.TypeQuals); 1294f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1295f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 1296f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1297f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1298cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 1299cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 1300cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 1301cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1302cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 130304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DiagnoseDelayedFnAttrs(*this, FnAttrsFromPreviousChunk); 130404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 1305c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 1306c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner if (const AttributeList *AL = DeclType.getAttrs()) 1307328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessTypeAttributeList(*this, T, false, AL, FnAttrsFromPreviousChunk); 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1309971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1310971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (getLangOptions().CPlusPlus && T->isFunctionType()) { 1311183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 1312778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 1313971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1314971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // C++ 8.3.5p4: A cv-qualifier-seq shall only be part of the function type 1315971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // for a nonstatic member function, the function type to which a pointer 1316971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // to member refers, or the top-level function type of a function typedef 1317971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // declaration. 1318971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (FnTy->getTypeQuals() != 0 && 1319971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef && 1320584049d49d956add7bce5669e9823491f7d8de78Douglas Gregor ((D.getContext() != Declarator::MemberContext && 1321584049d49d956add7bce5669e9823491f7d8de78Douglas Gregor (!D.getCXXScopeSpec().isSet() || 1322f59a56e180bf54528d7d1d5afa68fcc13300965aDouglas Gregor !computeDeclContext(D.getCXXScopeSpec(), /*FIXME:*/true) 1323f59a56e180bf54528d7d1d5afa68fcc13300965aDouglas Gregor ->isRecord())) || 1324971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static)) { 1325971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (D.isFunctionDeclarator()) 1326971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis Diag(D.getIdentifierLoc(), diag::err_invalid_qualified_function_type); 1327971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis else 1328971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis Diag(D.getIdentifierLoc(), 1329971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis diag::err_invalid_qualified_typedef_function_type_use); 1330971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1331971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // Strip the cv-quals from the type. 1332971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis T = Context.getFunctionType(FnTy->getResultType(), FnTy->arg_type_begin(), 1333ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor FnTy->getNumArgs(), FnTy->isVariadic(), 0, 1334264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, false, 0, 0, FunctionType::ExtInfo()); 1335971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 1336971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 13371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 133804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Process any function attributes we might have delayed from the 133904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // declaration-specifiers. 134004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall ProcessDelayedFnAttrs(*this, T, FnAttrsFromDeclSpec); 134104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 134204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // If there were any type attributes applied to the decl itself, not 134304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // the type, apply them to the result type. But don't do this for 134404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // block-literal expressions, which are parsed wierdly. 134504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (D.getContext() != Declarator::BlockLiteralContext) 134604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (const AttributeList *Attrs = D.getAttributes()) 1347328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessTypeAttributeList(*this, T, false, Attrs, 1348328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis FnAttrsFromPreviousChunk); 134904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 135004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DiagnoseDelayedFnAttrs(*this, FnAttrsFromPreviousChunk); 13514adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 1352bf1a028246d884a540aeafa38e89be59a269b072John McCall if (T.isNull()) 1353bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getNullTypeSourceInfo(); 1354bf1a028246d884a540aeafa38e89be59a269b072John McCall else if (D.isInvalidType()) 1355bf1a028246d884a540aeafa38e89be59a269b072John McCall return Context.getTrivialTypeSourceInfo(T); 1356bf1a028246d884a540aeafa38e89be59a269b072John McCall return GetTypeSourceInfoForDeclarator(D, T, ReturnTypeInfo); 13575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 135951bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 136051bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 136151bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 1362f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 136351bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 136451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TypeSpecLocFiller(const DeclSpec &DS) : DS(DS) {} 1365f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 136651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 136751bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 136851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 136951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 137051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 137151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 137251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 137351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 1374c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 1375c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall void VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 1376c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Handle the base type, which might not have been written explicitly. 1377c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 1378c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(false); 1379c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.getBaseLoc().initialize(SourceLocation()); 1380c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } else { 1381c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall TL.setHasBaseTypeAsWritten(true); 1382c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getBaseLoc()); 1383c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall } 138454e14c4db764c0636160d26c5bbf491637c83a76John McCall 1385c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall // Protocol qualifiers. 138654e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 138754e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 138854e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 138954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 139054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 139154e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 139254e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 139354e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 139454e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 139554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 139654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 139754e14c4db764c0636160d26c5bbf491637c83a76John McCall } 139851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 139954e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 140054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 1401c12c5bba6ceb6acd4e51e7a0fc03257da9cfd44eJohn McCall Visit(TL.getPointeeLoc()); 140251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 1403833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 1404a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 1405a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Sema::GetTypeFromParser(DS.getTypeRep(), &TInfo); 1406833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1407833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 1408833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 1409a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 1410833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TL.initialize(DS.getTypeSpecTypeLoc()); 1411833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 1412833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 1413833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1414e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeLoc OldTL = TInfo->getTypeLoc(); 1415e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo->getType()->getAs<ElaboratedType>()) { 1416e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeLoc ElabTL = cast<ElaboratedTypeLoc>(OldTL); 1417e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TemplateSpecializationTypeLoc NamedTL = 1418e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara cast<TemplateSpecializationTypeLoc>(ElabTL.getNamedTypeLoc()); 1419e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(NamedTL); 1420e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1421e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara else 1422e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<TemplateSpecializationTypeLoc>(OldTL)); 1423833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 1424cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 1425cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 1426cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 1427cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 1428cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 1429cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 1430cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 1431cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 1432cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 1433cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeRep()); 1434cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 1435cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall Sema::GetTypeFromParser(DS.getTypeRep(), &TInfo); 1436cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 1437cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 1438ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 1439ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 1440ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 1441ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 1442ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 1443ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 1444ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 1445ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 1446ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 1447ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 1448ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 1449ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 1450ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 1451ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 1452ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 1453e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) { 1454e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 1455e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 1456e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (Keyword == ETK_Typename) { 1457e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 1458e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Sema::GetTypeFromParser(DS.getTypeRep(), &TInfo); 1459e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 1460e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<ElaboratedTypeLoc>(TInfo->getTypeLoc())); 1461e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 1462e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1463e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1464e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 1465e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 1466e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 1467e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 1468e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setQualifierRange(SS.isEmpty() ? SourceRange(): SS.getRange()); 1469e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Visit(TL.getNextTypeLoc().getUnqualifiedLoc()); 1470e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1471e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara void VisitDependentNameTypeLoc(DependentNameTypeLoc TL) { 1472e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ElaboratedTypeKeyword Keyword 1473e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara = TypeWithKeyword::getKeywordForTypeSpec(DS.getTypeSpecType()); 1474e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (Keyword == ETK_Typename) { 1475e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TypeSourceInfo *TInfo = 0; 1476e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara Sema::GetTypeFromParser(DS.getTypeRep(), &TInfo); 1477e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (TInfo) { 1478e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.copy(cast<DependentNameTypeLoc>(TInfo->getTypeLoc())); 1479e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara return; 1480e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1481e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1482e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setKeywordLoc(Keyword != ETK_None 1483e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara ? DS.getTypeSpecTypeLoc() 1484e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara : SourceLocation()); 1485e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara const CXXScopeSpec& SS = DS.getTypeSpecScope(); 1486e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setQualifierRange(SS.isEmpty() ? SourceRange() : SS.getRange()); 1487e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara // FIXME: load appropriate source location. 1488e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara TL.setNameLoc(DS.getTypeSpecTypeLoc()); 1489e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara } 1490e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara 149151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 149251bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 149351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.initialize(DS.getTypeSpecTypeLoc()); 149451bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 149551bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 1496eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 149751bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 149851bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 1499f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 150051bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 150151bd803fbdade51d674598ed45da3d54190a656cJohn McCall DeclaratorLocFiller(const DeclaratorChunk &Chunk) : Chunk(Chunk) {} 15024adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 150351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 15049f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 150551bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 15064adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 150751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 150851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 150951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 15104adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 151151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 151251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 151351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 15144adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 151551bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 151651bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 151751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 15184adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 151951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 152051bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 152151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 152251bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: nested name specifier 15234adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 152451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 152551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 152654e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 152754e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 152851bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 152951bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 153051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 153151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 153251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 153351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 153451bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 153551bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 153651bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 153751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 153851bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 153951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 154051bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 154151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 154251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 154351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLParenLoc(Chunk.Loc); 154451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRParenLoc(Chunk.EndLoc); 154551bd803fbdade51d674598ed45da3d54190a656cJohn McCall 154651bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 154754e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 15484adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis ParmVarDecl *Param = FTI.ArgInfo[i].Param.getAs<ParmVarDecl>(); 154954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 15504adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 155151bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 15524adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 15531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 155451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 15559f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 15564adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 155751bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 155851bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 15594adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 1560a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 156151bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 156251bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 156305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// 156405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// \param ReturnTypeInfo For declarators whose return type does not show 156505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// up in the normal place in the declaration specifiers (such as a C++ 156605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// conversion function), this pointer will refer to a type source information 156705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor/// for that return type. 1568a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 156905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas GregorSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T, 157005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo) { 1571a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 1572a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 157351bd803fbdade51d674598ed45da3d54190a656cJohn McCall 15748ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 157551bd803fbdade51d674598ed45da3d54190a656cJohn McCall DeclaratorLocFiller(D.getTypeObject(i)).Visit(CurrTL); 157651bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 15774adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 1578f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 157951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TypeSpecLocFiller(D.getDeclSpec()).Visit(CurrTL); 158005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 158105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor // We have source information for the return type that was not in the 158205baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor // declaration specifiers; copy that information into the current type 158305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor // location so that it will be retained. This occurs, for example, with 158405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor // a C++ conversion function, where the return type occurs within the 158505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor // declarator-id rather than in the declaration specifiers. 158605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor if (ReturnTypeInfo && D.getDeclSpec().getTypeSpecType() == TST_unspecified) { 158705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeLoc TL = ReturnTypeInfo->getTypeLoc(); 158805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor assert(TL.getFullDataSize() == CurrTL.getFullDataSize()); 158905baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor memcpy(CurrTL.getOpaqueData(), TL.getOpaqueData(), TL.getFullDataSize()); 159005baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor } 159105baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 1592a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 15934adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 15944adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 1595a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 1596a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallQualType Sema::CreateLocInfoType(QualType T, TypeSourceInfo *TInfo) { 15971bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 15981bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 15991bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 16001bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 8); 1601a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 16021bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 16031bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 16041bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis return QualType(LocT, 0); 16051bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 16061bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 16071bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 16081bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 160935d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis assert(false && "LocInfoType leaked into the type system; an opaque TypeTy*" 161035d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 161135d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 16121bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 16131bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 16149e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// UnwrapSimilarPointerTypes - If T1 and T2 are pointer types that 16159e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// may be similar (C++ 4.4), replaces T1 and T2 with the type that 16169e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// they point to and return true. If T1 and T2 aren't pointer types 16179e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// or pointer-to-member types, or if they are not similar at this 16189e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// level, returns false and leaves T1 and T2 unchanged. Top-level 16199e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// qualifiers on T1 and T2 are ignored. This function will typically 16209e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// be called in a loop that successively "unwraps" pointer and 16219e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// pointer-to-member types to compare them at each level. 1622ecb81f28cb279b7d8e84296445a4131fa80b69a9Chris Lattnerbool Sema::UnwrapSimilarPointerTypes(QualType& T1, QualType& T2) { 16236217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *T1PtrType = T1->getAs<PointerType>(), 16246217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek *T2PtrType = T2->getAs<PointerType>(); 162557373266011f73418381b736015d8d2bb0381176Douglas Gregor if (T1PtrType && T2PtrType) { 162657373266011f73418381b736015d8d2bb0381176Douglas Gregor T1 = T1PtrType->getPointeeType(); 162757373266011f73418381b736015d8d2bb0381176Douglas Gregor T2 = T2PtrType->getPointeeType(); 162857373266011f73418381b736015d8d2bb0381176Douglas Gregor return true; 162957373266011f73418381b736015d8d2bb0381176Douglas Gregor } 163057373266011f73418381b736015d8d2bb0381176Douglas Gregor 16316217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const MemberPointerType *T1MPType = T1->getAs<MemberPointerType>(), 16326217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek *T2MPType = T2->getAs<MemberPointerType>(); 163321593acb933324b439bc68b68e7cc7d1c3e3484dSebastian Redl if (T1MPType && T2MPType && 163421593acb933324b439bc68b68e7cc7d1c3e3484dSebastian Redl Context.getCanonicalType(T1MPType->getClass()) == 163521593acb933324b439bc68b68e7cc7d1c3e3484dSebastian Redl Context.getCanonicalType(T2MPType->getClass())) { 16364433aafbc2591b82e4ea2fc39c723b21d2497f4dSebastian Redl T1 = T1MPType->getPointeeType(); 16374433aafbc2591b82e4ea2fc39c723b21d2497f4dSebastian Redl T2 = T2MPType->getPointeeType(); 16384433aafbc2591b82e4ea2fc39c723b21d2497f4dSebastian Redl return true; 16394433aafbc2591b82e4ea2fc39c723b21d2497f4dSebastian Redl } 1640d425d2b78665f42dddda56da31d6a3f576493474John McCall 1641d425d2b78665f42dddda56da31d6a3f576493474John McCall if (getLangOptions().ObjC1) { 1642d425d2b78665f42dddda56da31d6a3f576493474John McCall const ObjCObjectPointerType *T1OPType = T1->getAs<ObjCObjectPointerType>(), 1643d425d2b78665f42dddda56da31d6a3f576493474John McCall *T2OPType = T2->getAs<ObjCObjectPointerType>(); 1644d425d2b78665f42dddda56da31d6a3f576493474John McCall if (T1OPType && T2OPType) { 1645d425d2b78665f42dddda56da31d6a3f576493474John McCall T1 = T1OPType->getPointeeType(); 1646d425d2b78665f42dddda56da31d6a3f576493474John McCall T2 = T2OPType->getPointeeType(); 1647d425d2b78665f42dddda56da31d6a3f576493474John McCall return true; 1648d425d2b78665f42dddda56da31d6a3f576493474John McCall } 1649d425d2b78665f42dddda56da31d6a3f576493474John McCall } 165057373266011f73418381b736015d8d2bb0381176Douglas Gregor return false; 165157373266011f73418381b736015d8d2bb0381176Douglas Gregor} 165257373266011f73418381b736015d8d2bb0381176Douglas Gregor 1653cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian RedlSema::TypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 16545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 16555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 16565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 16571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1658402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor TagDecl *OwnedTag = 0; 1659bf1a028246d884a540aeafa38e89be59a269b072John McCall TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S, &OwnedTag); 1660bf1a028246d884a540aeafa38e89be59a269b072John McCall QualType T = TInfo->getType(); 16615153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 1662809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 16635912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 1664402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus) { 1665402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 16666d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 16676d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor 1668402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++0x [dcl.type]p3: 1669402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // A type-specifier-seq shall not define a class or enumeration 1670402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // unless it appears in the type-id of an alias-declaration 1671402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // (7.1.3). 1672402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (OwnedTag && OwnedTag->isDefinition()) 1673402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(OwnedTag->getLocation(), diag::err_type_defined_in_type_specifier) 1674402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(OwnedTag); 1675402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 1676402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 1677bf1a028246d884a540aeafa38e89be59a269b072John McCall T = CreateLocInfoType(T, TInfo); 16785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T.getAsOpaquePtr(); 16795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1681c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1682c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1683c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 1684c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 1685c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 1686232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 1687232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 1688c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 1689c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 16901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 1691c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 16920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1693232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 1694232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Clause 6.7.3 - Type qualifiers: "No type shall be qualified by qualifiers 1695232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // for two or more different address spaces." 1696232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 1697c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 1698e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1699c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1700232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 17011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1702232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 1703545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 1704f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1705e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1706c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1707232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 1708545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *ASArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1709232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 1710ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (ASArgExpr->isTypeDependent() || ASArgExpr->isValueDependent() || 1711ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 1712dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_space_not_int) 1713dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner << ASArgExpr->getSourceRange(); 1714e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1715c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1716232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 1717232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 1718efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 1719efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 1720efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 1721efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 1722efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 1723e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1724efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 1725efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1726efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 1727efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1728efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 17290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 1730efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 1731efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 17320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall << Qualifiers::MaxAddressSpace << ASArgExpr->getSourceRange(); 1733e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1734efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 1735efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1736efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 17371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 1738f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 1739c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 1740c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1741d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian/// HandleObjCGCTypeAttribute - Process an objc's gc attribute on the 1742d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian/// specified type. The attribute contains 1 argument, weak or strong. 17431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleObjCGCTypeAttribute(QualType &Type, 17443b6b83b8311ecdfa43cbb37ccc38c107d3b8d88bChris Lattner const AttributeList &Attr, Sema &S) { 17450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Type.getObjCGCAttr() != Qualifiers::GCNone) { 17465934e75d98d99374f72722a69c5eefe026f35c74Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_multiple_objc_gc); 1747e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1748d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1749d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 17501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1751d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 17521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Attr.getParameterName()) { 1753ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 1754ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian << "objc_gc" << 1; 1755e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1756ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian return; 1757ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 17580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 1759ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian if (Attr.getNumArgs() != 0) { 1760d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1761e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1762d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1763d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 17641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (Attr.getParameterName()->isStr("weak")) 17650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 1766d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else if (Attr.getParameterName()->isStr("strong")) 17670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 1768d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 1769d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 1770d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian << "objc_gc" << Attr.getParameterName(); 1771e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1772d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1773d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 17741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17753b6b83b8311ecdfa43cbb37ccc38c107d3b8d88bChris Lattner Type = S.Context.getObjCGCQualType(Type, GCAttr); 1776d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1777d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 177804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall/// Process an individual function attribute. Returns true if the 177904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall/// attribute does not make sense to apply to this type. 178004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallbool ProcessFnAttr(Sema &S, QualType &Type, const AttributeList &Attr) { 178104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (Attr.getKind() == AttributeList::AT_noreturn) { 178204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Complain immediately if the arg count is wrong. 178304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (Attr.getNumArgs() != 0) { 178404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1785e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 178604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 178704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 17882455636163fdd18581d7fdae816433f886d88213Mike Stump 178904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if this is not a function or pointer to block. 179004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!Type->isFunctionPointerType() 179104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall && !Type->isBlockPointerType() 179204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall && !Type->isFunctionType()) 179304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 17942455636163fdd18581d7fdae816433f886d88213Mike Stump 179504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise we can process right away. 179604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Type = S.Context.getNoReturnType(Type); 179704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 179804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 17992455636163fdd18581d7fdae816433f886d88213Mike Stump 1800425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (Attr.getKind() == AttributeList::AT_regparm) { 1801425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // The warning is emitted elsewhere 1802425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (Attr.getNumArgs() != 1) { 1803425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return false; 1804425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 1805425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1806425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Delay if this is not a function or pointer to block. 1807425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (!Type->isFunctionPointerType() 1808425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola && !Type->isBlockPointerType() 1809425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola && !Type->isFunctionType()) 1810425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return true; 1811425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1812425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 1813425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 1814425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola llvm::APSInt NumParams(32); 1815425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1816425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // The warning is emitted elsewhere 1817ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 1818ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) 1819425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return false; 1820425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1821425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola Type = S.Context.getRegParmType(Type, NumParams.getZExtValue()); 1822425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return false; 1823425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 1824425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 182504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 182604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (Attr.getNumArgs() != 0) { 182704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1828e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 182904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 183004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 1831f82b4e85b1219295cad4b5851b035575bc293010John McCall 183204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall QualType T = Type; 183304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (const PointerType *PT = Type->getAs<PointerType>()) 183404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall T = PT->getPointeeType(); 183504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall const FunctionType *Fn = T->getAs<FunctionType>(); 183604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 183704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if the type didn't work out to a function. 183804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!Fn) return true; 183904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 184004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // TODO: diagnose uses of these conventions on the wrong target. 184104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall CallingConv CC; 184204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall switch (Attr.getKind()) { 184304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: CC = CC_C; break; 184404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; 184504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; 1846f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; 184704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall default: llvm_unreachable("unexpected attribute kind"); return false; 184804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 184904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 185004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall CallingConv CCOld = Fn->getCallConv(); 1851064f7db69def9299f5f4d9a32114afc10b6a6420Charles Davis if (S.Context.getCanonicalCallConv(CC) == 1852e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Context.getCanonicalCallConv(CCOld)) { 1853e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 1854e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return false; 1855e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 185604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 185704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CCOld != CC_Default) { 185804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Should we diagnose reapplications of the same convention? 185904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 186004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC) 186104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CCOld); 1862e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 186304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 186404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 186504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 186604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 186704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 186804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (isa<FunctionNoProtoType>(Fn)) { 186904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_cconv_knr) 187004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 1871e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 187204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 187304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 187404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 187504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(Fn); 187604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 187704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_cconv_varargs) 187804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 1879e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 188004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 188104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 188204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 1883f82b4e85b1219295cad4b5851b035575bc293010John McCall 188404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Type = S.Context.getCallConvType(Type, CC); 188504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 1886f82b4e85b1219295cad4b5851b035575bc293010John McCall} 1887f82b4e85b1219295cad4b5851b035575bc293010John McCall 18886e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 18896e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 18906e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 18916e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 18926e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 18936e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 18946e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 18956e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompsonstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, Sema &S) { 18966e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Check the attribute arugments. 18976e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 18986e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1899e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 19006e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 19016e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 19026e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 19036e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 1904ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (sizeExpr->isTypeDependent() || sizeExpr->isValueDependent() || 1905ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 19066e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 19076e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << "vector_size" << sizeExpr->getSourceRange(); 1908e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 19096e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 19106e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 19116e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the base type must be integer or float, and can't already be a vector. 19126e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (CurType->isVectorType() || 19136e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson (!CurType->isIntegerType() && !CurType->isRealFloatingType())) { 19146e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 1915e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 19166e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 19176e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 19186e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 19196e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 19206e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 19216e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 19226e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 19236e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 19246e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 19256e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 1926e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 19276e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 19286e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 19296e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 19306e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 19316e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 1932e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.setInvalid(); 19336e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 19346e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 19356e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 19366e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 19376e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 193882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, false, false); 19396e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 19406e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 194104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallvoid ProcessTypeAttributeList(Sema &S, QualType &Result, 1942328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis bool IsDeclSpec, const AttributeList *AL, 194304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DelayedAttributeSet &FnAttrs) { 1944c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 1945c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 1946c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 1947c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 1948c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner for (; AL; AL = AL->getNext()) { 1949e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // Skip attributes that were marked to be invalid. 1950e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara if (AL->isInvalid()) 1951e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara continue; 1952e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 1953b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 1954b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 1955c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner switch (AL->getKind()) { 1956c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner default: break; 195704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 1958c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner case AttributeList::AT_address_space: 195904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall HandleAddressSpaceTypeAttribute(Result, *AL, S); 1960c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 1961d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian case AttributeList::AT_objc_gc: 196204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall HandleObjCGCTypeAttribute(Result, *AL, S); 1963d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 196404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_vector_size: 196504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall HandleVectorSizeAttr(Result, *AL, S); 1966f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 196704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 196804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_noreturn: 196904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 197004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 1971f82b4e85b1219295cad4b5851b035575bc293010John McCall case AttributeList::AT_stdcall: 1972f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 1973425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola case AttributeList::AT_regparm: 1974328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis // Don't process these on the DeclSpec. 1975328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis if (IsDeclSpec || 1976328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessFnAttr(S, Result, *AL)) 197704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall FnAttrs.push_back(DelayedAttribute(AL, Result)); 19786e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 1979c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 1980c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 1981232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 1982232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 19831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 19844ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 19854ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 19864ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 198786447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 198886447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 198986447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 199086447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 199186447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 19924ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 19934ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 19944ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 19954ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 19964ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 19974ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 19981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @param PD The partial diagnostic that will be printed out if T is not a 1999b790661a15d93941d2c33a0ea328254277b3d7e3Anders Carlsson/// complete type. 20004ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 20014ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 20024ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 200391a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 20048c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson const PartialDiagnostic &PD, 20058c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson std::pair<SourceLocation, 20068c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson PartialDiagnostic> Note) { 200791a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson unsigned diag = PD.getDiagID(); 20081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2009573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 2010573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 2011690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 2012690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 2013690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 20141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 2015690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 2016690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 20174ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 20184ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (!T->isIncompleteType()) 20194ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 20204ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 2021d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 2022923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 2023923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 2024923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 202589c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor if (const ConstantArrayType *Array = Context.getAsConstantArrayType(T)) 2026923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 2027923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 20282943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 2029d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 2030972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 2031972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 2032d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 20335842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor /*Complain=*/diag != 0); 20341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 2035d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 2036d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass()) { 2037b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor MemberSpecializationInfo *MSInfo = Rec->getMemberSpecializationInfo(); 2038b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor assert(MSInfo && "Missing member specialization information?"); 2039357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 2040b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor if (MSInfo->getTemplateSpecializationKind() 2041972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor != TSK_ExplicitSpecialization) 2042f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 2043f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 2044f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 2045f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor /*Complain=*/diag != 0); 2046d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 2047d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 2048d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 20492943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 20505842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor if (diag == 0) 20515842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 20521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 205301620704304f819b82ecef769ec114e541a364d7Rafael Espindola const TagType *Tag = 0; 205401620704304f819b82ecef769ec114e541a364d7Rafael Espindola if (const RecordType *Record = T->getAs<RecordType>()) 205501620704304f819b82ecef769ec114e541a364d7Rafael Espindola Tag = Record; 205601620704304f819b82ecef769ec114e541a364d7Rafael Espindola else if (const EnumType *Enum = T->getAs<EnumType>()) 205701620704304f819b82ecef769ec114e541a364d7Rafael Espindola Tag = Enum; 205801620704304f819b82ecef769ec114e541a364d7Rafael Espindola 205901620704304f819b82ecef769ec114e541a364d7Rafael Espindola // Avoid diagnosing invalid decls as incomplete. 206001620704304f819b82ecef769ec114e541a364d7Rafael Espindola if (Tag && Tag->getDecl()->isInvalidDecl()) 206101620704304f819b82ecef769ec114e541a364d7Rafael Espindola return true; 206201620704304f819b82ecef769ec114e541a364d7Rafael Espindola 20634ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 206491a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson Diag(Loc, PD) << T; 20653c0eb160ca1361a82b9f15b3b40a2425adc14d0fEli Friedman 20668c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson // If we have a note, produce it. 20678c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson if (!Note.first.isInvalid()) 20688c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson Diag(Note.first, Note.second); 20698c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson 20704ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 207101620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 20724ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 20731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 20744ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 20754ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 20764ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor << QualType(Tag, 0); 20774ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 20784ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 20794ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 2080e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 2081fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 2082fe6b2d481d91140923f4541f273b253291884214Douglas Gregor const PartialDiagnostic &PD) { 2083fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PD, 2084fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 2085fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 2086fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 2087fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 2088fe6b2d481d91140923f4541f273b253291884214Douglas Gregor unsigned DiagID) { 2089fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PDiag(DiagID), 2090fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 2091fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 2092fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 2093465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// \brief Retrieve a version of the type 'T' that is elaborated by Keyword 2094465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara/// and qualified by the nested-name-specifier contained in SS. 2095465d41b92b2c862f3062c412a0538db65c6a2661Abramo BagnaraQualType Sema::getElaboratedType(ElaboratedTypeKeyword Keyword, 2096465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara const CXXScopeSpec &SS, QualType T) { 2097465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (T.isNull()) 2098e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 2099465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NestedNameSpecifier *NNS; 2100e4da7a034a2fcf4b14d0bcc28d05de0878159061Abramo Bagnara if (SS.isValid()) 2101465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 2102465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara else { 2103465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (Keyword == ETK_None) 2104465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return T; 2105465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara NNS = 0; 2106465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara } 2107465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara return Context.getElaboratedType(Keyword, NNS, T); 2108e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 2109af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 2110af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders CarlssonQualType Sema::BuildTypeofExprType(Expr *E) { 21114b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (E->getType() == Context.OverloadTy) { 21124b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // C++ [temp.arg.explicit]p3 allows us to resolve a template-id to a 21134b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // function template specialization wherever deduction cannot occur. 21144b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (FunctionDecl *Specialization 21154b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor = ResolveSingleFunctionTemplateSpecialization(E)) { 2116161755a09898c95d21bfff33707da9ca41cd53c5John McCall // The access doesn't really matter in this case. 2117161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair Found = DeclAccessPair::make(Specialization, 2118161755a09898c95d21bfff33707da9ca41cd53c5John McCall Specialization->getAccess()); 2119161755a09898c95d21bfff33707da9ca41cd53c5John McCall E = FixOverloadedFunctionReference(E, Found, Specialization); 21204b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (!E) 21214b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 21224b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } else { 21234b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Diag(E->getLocStart(), 21244b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor diag::err_cannot_determine_declared_type_of_overloaded_function) 21254b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor << false << E->getSourceRange(); 21264b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 21274b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 21284b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 21294b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 2130af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 2131af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 2132af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 2133af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders CarlssonQualType Sema::BuildDecltypeType(Expr *E) { 2134af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (E->getType() == Context.OverloadTy) { 21354b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // C++ [temp.arg.explicit]p3 allows us to resolve a template-id to a 21364b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // function template specialization wherever deduction cannot occur. 21374b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (FunctionDecl *Specialization 21384b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor = ResolveSingleFunctionTemplateSpecialization(E)) { 2139161755a09898c95d21bfff33707da9ca41cd53c5John McCall // The access doesn't really matter in this case. 2140161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair Found = DeclAccessPair::make(Specialization, 2141161755a09898c95d21bfff33707da9ca41cd53c5John McCall Specialization->getAccess()); 2142161755a09898c95d21bfff33707da9ca41cd53c5John McCall E = FixOverloadedFunctionReference(E, Found, Specialization); 21434b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (!E) 21444b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 21454b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } else { 21464b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Diag(E->getLocStart(), 21474b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor diag::err_cannot_determine_declared_type_of_overloaded_function) 21484b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor << true << E->getSourceRange(); 21494b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 21504b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 2151af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 21524b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 2153af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getDecltypeType(E); 2154af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 2155