SemaType.cpp revision b1f1b267351be74013f966f4834cde1eddbe0233
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 282dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor/// \brief Perform adjustment on the parameter type of a function. 292dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor/// 302dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor/// This routine adjusts the given parameter type @p T to the actual 311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// parameter type used by semantic analysis (C99 6.7.5.3p[7,8], 321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ [dcl.fct]p3). The adjusted parameter type is returned. 332dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas GregorQualType Sema::adjustParameterType(QualType T) { 342dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // C99 6.7.5.3p7: 35778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // A declaration of a parameter as "array of type" shall be 36778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // adjusted to "qualified pointer to type", where the type 37778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // qualifiers (if any) are those specified within the [ and ] of 38778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // the array type derivation. 39778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner if (T->isArrayType()) 402dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return Context.getArrayDecayedType(T); 41778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner 42778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // C99 6.7.5.3p8: 43778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // A declaration of a parameter as "function returning type" 44778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // shall be adjusted to "pointer to function returning type", as 45778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner // in 6.3.2.1. 46778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner if (T->isFunctionType()) 472dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return Context.getPointerType(T); 482dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 492dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor return T; 502dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor} 512dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 525db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 535db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 545db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// isOmittedBlockReturnType - Return true if this declarator is missing a 555db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// return type because this is a omitted return type on a block literal. 568ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redlstatic bool isOmittedBlockReturnType(const Declarator &D) { 575db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getContext() != Declarator::BlockLiteralContext || 588ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl D.getDeclSpec().hasTypeSpecifier()) 595db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 605db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 615db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 0) 62a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^{ ... } 635db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 645db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (D.getNumTypeObjects() == 1 && 655db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner D.getTypeObject(0).Kind == DeclaratorChunk::Function) 66a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner return true; // ^(int X, float Y) { ... } 675db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 685db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner return false; 695db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner} 705db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 7104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCalltypedef std::pair<const AttributeList*,QualType> DelayedAttribute; 7204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCalltypedef llvm::SmallVectorImpl<DelayedAttribute> DelayedAttributeSet; 7304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 7404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallstatic void ProcessTypeAttributeList(Sema &S, QualType &Type, 75328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis bool IsDeclSpec, 7604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall const AttributeList *Attrs, 7704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DelayedAttributeSet &DelayedFnAttrs); 7804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallstatic bool ProcessFnAttr(Sema &S, QualType &Type, const AttributeList &Attr); 7904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 8004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallstatic void ProcessDelayedFnAttrs(Sema &S, QualType &Type, 8104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DelayedAttributeSet &Attrs) { 8204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall for (DelayedAttributeSet::iterator I = Attrs.begin(), 8304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall E = Attrs.end(); I != E; ++I) 8404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (ProcessFnAttr(S, Type, *I->first)) 8504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(I->first->getLoc(), diag::warn_function_attribute_wrong_type) 8604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << I->first->getName() << I->second; 8704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Attrs.clear(); 8804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 8904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 9004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallstatic void DiagnoseDelayedFnAttrs(Sema &S, DelayedAttributeSet &Attrs) { 9104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall for (DelayedAttributeSet::iterator I = Attrs.begin(), 9204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall E = Attrs.end(); I != E; ++I) { 9304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(I->first->getLoc(), diag::warn_function_attribute_wrong_type) 9404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << I->first->getName() << I->second; 9504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 9604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Attrs.clear(); 9704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall} 9804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 99930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// \brief Convert the specified declspec to the appropriate type 100930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// object. 1015db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// \param D the declarator containing the declaration specifier. 1025153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// \returns The type described by the declaration specifiers. This function 1035153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// never returns null. 10404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallstatic QualType ConvertDeclSpecToType(Sema &TheSema, 10504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Declarator &TheDeclarator, 10604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DelayedAttributeSet &Delayed) { 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: Should move the logic from DeclSpec::Finish to here for validity 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // checking. 1095db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner const DeclSpec &DS = TheDeclarator.getDeclSpec(); 1105db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner SourceLocation DeclLoc = TheDeclarator.getIdentifierLoc(); 1115db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (DeclLoc.isInvalid()) 1125db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner DeclLoc = DS.getSourceRange().getBegin(); 1131564e3906cad604a42bd131e584751a75589a9c4Chris Lattner 1141564e3906cad604a42bd131e584751a75589a9c4Chris Lattner ASTContext &Context = TheSema.Context; 1151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1165db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner QualType Result; 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecType()) { 11896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner case DeclSpec::TST_void: 11996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Result = Context.VoidTy; 12096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner break; 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_char: 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 123fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.CharTy; 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) 125fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.SignedCharTy; 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else { 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Unknown TSS value"); 129fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.UnsignedCharTy; 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 131958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 13264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case DeclSpec::TST_wchar: 13364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 13464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.WCharTy; 13564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) { 1361564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 137f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 13864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getSignedWCharType(); 13964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } else { 14064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 14164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis "Unknown TSS value"); 1421564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 143f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 14464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getUnsignedWCharType(); 14564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } 14664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 147f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char16: 148f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 149f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 150f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char16Ty; 151f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 152f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char32: 153f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 154f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 155f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char32Ty; 156f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 157d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner case DeclSpec::TST_unspecified: 15862f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner // "<proto1,proto2>" is an objc qualified ID with a missing id. 159097e916b617bb4a069a03764024c310ed42a6424Chris Lattner if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 1601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result = Context.getObjCObjectPointerType(Context.ObjCBuiltinIdTy, 16114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff (ObjCProtocolDecl**)PQ, 162683087ffcf21d2a22cd2d0424b7f119168b47a8eSteve Naroff DS.getNumProtocolQualifiers()); 16362f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner break; 16462f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner } 1655db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 1665db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // If this is a missing declspec in a block literal return context, then it 1675db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // is inferred from the return statements inside the block. 1688ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl if (isOmittedBlockReturnType(TheDeclarator)) { 1695db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner Result = Context.DependentTy; 1705db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 1715db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 1721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 173d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 174d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 175d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 176d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 177d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 178d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 179d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 1801564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().ImplicitInt) { 18135d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 18235d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 1833f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 1841564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::ext_missing_declspec) 1853f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 186849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(DS.getSourceRange().getBegin(), "int"); 1873f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 1884310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 189d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 190d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 191d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 192d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 1934310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor // FIXME: Does Microsoft really have the implicit int extension in C++? 1941564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().CPlusPlus && 1951564e3906cad604a42bd131e584751a75589a9c4Chris Lattner !TheSema.getLangOptions().Microsoft) { 1961564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::err_missing_type_specifier) 1973f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 1981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 199b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 200b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 201b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 2025db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 203b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 2041564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::ext_missing_type_specifier) 2053f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 206b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 207d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 2081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 2103cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 213fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 214fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 215fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 216311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 217311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 218311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 219311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 220311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner if (!TheSema.getLangOptions().C99 && 221311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner !TheSema.getLangOptions().CPlusPlus0x) 222311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner TheSema.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 223311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 227fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 228fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 229fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 230311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 231311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 232311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 233311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 234311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner if (!TheSema.getLangOptions().C99 && 235311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner !TheSema.getLangOptions().CPlusPlus0x) 236311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner TheSema.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 237311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 240958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 2413cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 242fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 243958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 244958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 245fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 246958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 247fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 248958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 249fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 2531564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 2548f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 2555db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 2568f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 25799dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 2595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_struct: { 261c7621a64717203e1f7d5d79dbf548e590b32596cDouglas Gregor TypeDecl *D 262c7621a64717203e1f7d5d79dbf548e590b32596cDouglas Gregor = dyn_cast_or_null<TypeDecl>(static_cast<Decl *>(DS.getTypeRep())); 2636e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 2646e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 2656e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 2665db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 2676e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 2686e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 2696e24726524c2b51b31bb4b622aa678a46b024f42John McCall 270a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 27154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall TheSema.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeLoc()); 272a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 274a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 275a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 277a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 2782191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 2792191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall // In C++, make an ElaboratedType. 2801564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().CPlusPlus) { 2812191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall TagDecl::TagKind Tag 2822191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall = TagDecl::getTagKindForTypeSpec(DS.getTypeSpecType()); 283050b78acf11900cb8c47563376200a1d7bd97f59Douglas Gregor Result = TheSema.getQualifiedNameType(DS.getTypeSpecScope(), Result); 2842191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall Result = Context.getElaboratedType(Result, Tag); 2852191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall } 2861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2875153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D->isInvalidDecl()) 2885db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 289958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 2901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 2911a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 2951564e3906cad604a42bd131e584751a75589a9c4Chris Lattner Result = TheSema.GetTypeFromParser(DS.getTypeRep()); 2962ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 2971a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 298f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis if (const ObjCInterfaceType * 299f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis Interface = Result->getAs<ObjCInterfaceType>()) { 30067ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // It would be nice if protocol qualifiers were only stored with the 30167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // ObjCObjectPointerType. Unfortunately, this isn't possible due 30267ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // to the following typedef idiom (which is uncommon, but allowed): 3031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 30467ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // typedef Foo<P> T; 30567ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // static void func() { 30667ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // Foo<P> *yy; 30767ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // T *zz; 30867ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // } 309c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff Result = Context.getObjCInterfaceType(Interface->getDecl(), 310c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff (ObjCProtocolDecl**)PQ, 311c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff DS.getNumProtocolQualifiers()); 312f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis } else if (Result->isObjCIdType()) 313ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 3141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result = Context.getObjCObjectPointerType(Context.ObjCBuiltinIdTy, 31514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff (ObjCProtocolDecl**)PQ, DS.getNumProtocolQualifiers()); 31614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff else if (Result->isObjCClassType()) { 3174262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 3181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result = Context.getObjCObjectPointerType(Context.ObjCBuiltinClassTy, 319470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff (ObjCProtocolDecl**)PQ, DS.getNumProtocolQualifiers()); 3203f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 3211564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 3223f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 3235db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 3243f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 325c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 3261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 328958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 330958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 331e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 3321564e3906cad604a42bd131e584751a75589a9c4Chris Lattner Result = TheSema.GetTypeFromParser(DS.getTypeRep()); 333958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 334d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 335fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 336958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 337d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 338d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff Expr *E = static_cast<Expr *>(DS.getTypeRep()); 339d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 340d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 3414b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = TheSema.BuildTypeofExprType(E); 3424b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 3434b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 3444b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor TheDeclarator.setInvalidType(true); 3454b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 346958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 347d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 3486fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 3496fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson Expr *E = static_cast<Expr *>(DS.getTypeRep()); 3506fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 3516fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 3521564e3906cad604a42bd131e584751a75589a9c4Chris Lattner Result = TheSema.BuildDecltypeType(E); 353af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 354af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 3555db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 356af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 3576fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 3586fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 359e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson case DeclSpec::TST_auto: { 360e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 361e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson Result = Context.UndeducedAutoTy; 362e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 363e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson } 3641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 365809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 3665153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 3675db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 3685153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 3695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 371958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 372f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 3731564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().Freestanding) 3741564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 375fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 37682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } else if (DS.isTypeAltiVecVector()) { 37782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson unsigned typeSize = static_cast<unsigned>(Context.getTypeSize(Result)); 37882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson assert(typeSize > 0 && "type size for vector must be greater than 0 bits"); 37982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Result = Context.getVectorType(Result, 128/typeSize, true, 38082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson DS.isTypeAltiVecPixel()); 381f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 3821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 383958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(DS.getTypeSpecComplex() != DeclSpec::TSC_imaginary && 384958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner "FIXME: imaginary types not supported yet!"); 3851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38638d8b98803ac354dba15578d65ea99a83dead046Chris Lattner // See if there are any attributes on the declspec that apply to the type (as 38738d8b98803ac354dba15578d65ea99a83dead046Chris Lattner // opposed to the decl). 388fca0ddd42965e0b7ae821213486d4e0dd71fb439Chris Lattner if (const AttributeList *AL = DS.getAttributes()) 389328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessTypeAttributeList(TheSema, Result, true, AL, Delayed); 3901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 39296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 39396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 39496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Enforce C99 6.7.3p2: "Types other than pointer types derived from object 39596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // or incomplete types shall not be restrict-qualified." C++ also allows 39696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // restrict-qualified references. 3970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_restrict) { 3982b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isAnyPointerType() || Result->isReferenceType()) { 3992b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian QualType EltTy; 4002b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isObjCObjectPointerType()) 4012b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result; 4022b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian else 4032b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result->isPointerType() ? 4042b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<PointerType>()->getPointeeType() : 4052b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<ReferenceType>()->getPointeeType(); 4061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 407bad0e656c3732e3539a9cd6525de721d7e47408bDouglas Gregor // If we have a pointer or reference, the pointee must have an object 408bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner // incomplete type. 409bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner if (!EltTy->isIncompleteOrObjectType()) { 4101564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getRestrictSpecLoc(), 411d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_invalid_pointee) 412d162584991885ab004a02573a73ce06422b921fcChris Lattner << EltTy << DS.getSourceRange(); 4130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 414bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } 415bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } else { 4161564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getRestrictSpecLoc(), 417d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_not_pointer) 418d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 4190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 42096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 42196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 42396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 42496b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 42596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 42696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 42796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Get some location to point at, either the C or V location. 42896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner SourceLocation Loc; 4290953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 43096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getConstSpecLoc(); 4310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 43296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getVolatileSpecLoc(); 4330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 4340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((TypeQuals & DeclSpec::TQ_restrict) && 4350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Has CVR quals but not C, V, or R?"); 4360953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Loc = DS.getRestrictSpecLoc(); 43796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4381564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(Loc, diag::warn_typecheck_function_qualifiers) 439d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 44096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 442f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 443f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 444f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 445f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 446f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 4471a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 4481a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 449f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 4500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 4510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 4521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(TypeQuals); 4550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Result = Context.getQualifiedType(Result, Quals); 45696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 458f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 459f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 460f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 461cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 462cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 463cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 4641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 465cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 466cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 467cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 468cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 469cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 470cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 471cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 472cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the pointer type. 473cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 474cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 475cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 476cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 477cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 478cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 479cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 480cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 481cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 482cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 4831eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildPointerType(QualType T, unsigned Quals, 484cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 485cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 486cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 487cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 488ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 489cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 490cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 491cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 4920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Qs = Qualifiers::fromCVRMask(Quals); 4930953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 494cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Enforce C99 6.7.3p2: "Types other than pointer types derived from 495cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // object or incomplete types shall not be restrict-qualified." 4960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Qs.hasRestrict() && !T->isIncompleteOrObjectType()) { 497cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_typecheck_invalid_restrict_invalid_pointee) 498cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << T; 4990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qs.removeRestrict(); 500cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 501cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 50292e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor assert(!T->isObjCInterfaceType() && "Should build ObjCObjectPointerType"); 50392e986e0adb79e8a47f738bd608e6c97c547641dDouglas Gregor 504cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 5050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Context.getQualifiedType(Context.getPointerType(T), Qs); 506cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 507cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 508cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 509cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 510cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 511cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 5120953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR The cvr-qualifiers to be applied to the reference type. 513cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 514cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 515cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 516cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 517cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 518cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 519cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 520cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 521cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 522cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 52354e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 52454e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned CVR, SourceLocation Loc, 52554e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 5260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(CVR); 52754e14c4db764c0636160d26c5bbf491637c83a76John McCall 52854e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 52954e14c4db764c0636160d26c5bbf491637c83a76John McCall 53054e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++0x [dcl.typedef]p9: If a typedef TD names a type that is a 53154e14c4db764c0636160d26c5bbf491637c83a76John McCall // reference to a type T, and attempt to create the type "lvalue 53254e14c4db764c0636160d26c5bbf491637c83a76John McCall // reference to cv TD" creates the type "lvalue reference to T". 53354e14c4db764c0636160d26c5bbf491637c83a76John McCall // We use the qualifiers (restrict or none) of the original reference, 53454e14c4db764c0636160d26c5bbf491637c83a76John McCall // not the new ones. This is consistent with GCC. 53554e14c4db764c0636160d26c5bbf491637c83a76John McCall 53654e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 53754e14c4db764c0636160d26c5bbf491637c83a76John McCall // 53854e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 53954e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 54054e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 54154e14c4db764c0636160d26c5bbf491637c83a76John McCall // 54254e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 54354e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 54454e14c4db764c0636160d26c5bbf491637c83a76John McCall // 54554e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 54654e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 54754e14c4db764c0636160d26c5bbf491637c83a76John McCall // collapsing of references-to-references as described in C++ 54854e14c4db764c0636160d26c5bbf491637c83a76John McCall // DR 106 and amended by C++ DR 540. 549cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 550cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 55133a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 552cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 553cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 554cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 555cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 556cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 557cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 558cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Enforce C99 6.7.3p2: "Types other than pointer types derived from 559cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // object or incomplete types shall not be restrict-qualified." 5600953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Quals.hasRestrict() && !T->isIncompleteOrObjectType()) { 561cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_typecheck_invalid_restrict_invalid_pointee) 562cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << T; 5630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeRestrict(); 564cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 565cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 566cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 567cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // [...] Cv-qualified references are ill-formed except when the 568cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 569cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which case 570cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // the cv-qualifiers are ignored. 571cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // 572cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // We diagnose extraneous cv-qualifiers for the non-typedef, 573cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // non-template type argument case within the parser. Here, we just 574cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // ignore any extraneous cv-qualifiers. 5750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeConst(); 5760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeVolatile(); 577cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 578cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 5797c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 58054e14c4db764c0636160d26c5bbf491637c83a76John McCall return Context.getQualifiedType( 58154e14c4db764c0636160d26c5bbf491637c83a76John McCall Context.getLValueReferenceType(T, SpelledAsLValue), Quals); 5820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Context.getQualifiedType(Context.getRValueReferenceType(T), Quals); 583cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 584cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 585cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 586cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 587cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 588cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 589cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 5901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 5911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 592cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 593cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the array's 594cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// element type. 595cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 596cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 597cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// array type or, if there is no such entity, the location of the 598cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have array type. 599cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 600cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 601cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 602cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 603cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 604cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 605cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 606cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 6077e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 6080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 6097e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 610923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (getLangOptions().CPlusPlus) { 611138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C++ [dcl.array]p1: 612138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // T is called the array element type; this type shall not be a reference 613138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // type, the (possibly cv-qualified) type void, a function type or an 614138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // abstract class type. 615138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // 616138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // Note: function types are handled in the common path with C. 617138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (T->isReferenceType()) { 618138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 619138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor << getPrintableNameForEntity(Entity) << T; 620138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 621138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor } 622138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 623923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (T->isVoidType()) { 624923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 625923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 626923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 627138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 628138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor if (RequireNonAbstractType(Brackets.getBegin(), T, 629138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor diag::err_array_of_abstract_type)) 630138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor return QualType(); 631138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor 632923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 633138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // C99 6.7.5.2p1: If the element type is an incomplete or function type, 634138bb2366baa3856088bae94f36f2d96b2c995b9Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 635923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 636923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 637923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 638923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 639cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 640cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 641cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 642ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 643cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 644cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 6451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 646e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson if (Context.getCanonicalType(T) == Context.UndeducedAutoTy) { 6471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, diag::err_illegal_decl_array_of_auto) 648e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson << getPrintableNameForEntity(Entity); 649e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson return QualType(); 650e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson } 6511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6526217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 653cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 654cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 655cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 656cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 657cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else if (T->isObjCInterfaceType()) { 658c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 659c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 660cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 6611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 662cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 663cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (ArraySize && !ArraySize->isTypeDependent() && 664cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor !ArraySize->getType()->isIntegerType()) { 665cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 666cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 667cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor ArraySize->Destroy(Context); 668cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 669cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 670cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor llvm::APSInt ConstVal(32); 671cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 672f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 6737e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 674f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 675f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 676cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else if (ArraySize->isValueDependent()) { 6777e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 678cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else if (!ArraySize->isIntegerConstantExpr(ConstVal, Context) || 679923d56d436f750bc1f29db50e641078725558a1bSebastian Redl (!T->isDependentType() && !T->isIncompleteType() && 680923d56d436f750bc1f29db50e641078725558a1bSebastian Redl !T->isConstantSizeType())) { 681cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Per C99, a variable array is an array with either a non-constant 682cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // size or an element type that has a non-constant-size 6837e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 684cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 685cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 686cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 687923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 688923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(ArraySize->getLocStart(), 689923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_typecheck_negative_array_size) 690923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 691923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 692923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 693923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 69402024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // GCC accepts zero sized static arrays. We allow them when 69502024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor // we're not in a SFINAE context. 69602024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor Diag(ArraySize->getLocStart(), 69702024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor isSFINAEContext()? diag::err_typecheck_zero_array_size 69802024a9f0d8e6c898de276193af604c42ee41269Douglas Gregor : diag::ext_typecheck_zero_array_size) 699923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 7001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 70146a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 702cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 703af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 704af40776922bc5c28e740adb0342faa09f35b0068David Chisnall if (!getLangOptions().C99) { 7051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ArraySize && !ArraySize->isTypeDependent() && 7061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump !ArraySize->isValueDependent() && 707cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor !ArraySize->isIntegerConstantExpr(Context)) 708043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor Diag(Loc, getLangOptions().CPlusPlus? diag::err_vla_cxx : diag::ext_vla); 709cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor else if (ASM != ArrayType::Normal || Quals != 0) 710043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor Diag(Loc, 711043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor getLangOptions().CPlusPlus? diag::err_c99_array_usage_cxx 712043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor : diag::ext_c99_array_usage); 713cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 714cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 715cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 716cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 7179cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7189cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 7199cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 7209cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 7211eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildExtVectorType(QualType T, ExprArg ArraySize, 7229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 7239cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7249cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *Arg = (Expr *)ArraySize.get(); 7259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7269cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 7279cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 7281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 7299cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 7309cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 7319cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 7329cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 7339cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7349cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!Arg->isTypeDependent() && !Arg->isValueDependent()) { 7359cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 7369cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!Arg->isIntegerConstantExpr(vecSize, Context)) { 7379cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_argument_not_int) 7389cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor << "ext_vector_type" << Arg->getSourceRange(); 7399cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 7409cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 7411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 7439cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 7441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 7451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7469cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 7479cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 7489cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor << Arg->getSourceRange(); 7499cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 7509cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 7511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7529cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T->isDependentType()) 7539cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return Context.getExtVectorType(T, vectorSize); 7541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Context.getDependentSizedExtVectorType(T, ArraySize.takeAs<Expr>(), 7579cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor AttrLoc); 7589cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 7591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 760724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \brief Build a function type. 761724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 762724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// This routine checks the function type according to C++ rules and 763724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// under the assumption that the result type and parameter types have 764724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// just been instantiated from a template. It therefore duplicates 7652943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor/// some of the behavior of GetTypeForDeclarator, but in a much 766724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// simpler form that is only suitable for this narrow use case. 767724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 768724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param T The return type of the function. 769724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 770724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param ParamTypes The parameter types of the function. This array 771724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// will be modified to account for adjustments to the types of the 772724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function parameters. 773724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 774724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param NumParamTypes The number of parameter types in ParamTypes. 775724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 776724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Variadic Whether this is a variadic function type. 777724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 778724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the function type. 779724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 780724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Loc The location of the entity whose type involves this 781724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function type or, if there is no such entity, the location of the 782724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type that will have function type. 783724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 784724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Entity The name of the entity that involves the function 785724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type, if known. 786724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 787724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \returns A suitable function type, if there are no 788724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// errors. Otherwise, returns a NULL type. 789724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas GregorQualType Sema::BuildFunctionType(QualType T, 7901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType *ParamTypes, 791724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor unsigned NumParamTypes, 792724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Variadic, unsigned Quals, 793724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 794724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 79558408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(Loc, diag::err_func_returning_array_function) 79658408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 797724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 798724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 7991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 800724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 801724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor for (unsigned Idx = 0; Idx < NumParamTypes; ++Idx) { 8022dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor QualType ParamType = adjustParameterType(ParamTypes[Idx]); 8032dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 804724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 805724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 806724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 807cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 80854e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 809724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 810724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 811724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 812724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 813724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 8141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Context.getFunctionType(T, ParamTypes, NumParamTypes, Variadic, 815264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola Quals, false, false, 0, 0, 816264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo()); 817724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 8181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 819949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 820949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 821949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 822949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 8230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR Qualifiers applied to the member pointer type 824949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 825949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 826949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 827949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 828949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 8291eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 8300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned CVR, SourceLocation Loc, 831949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 8320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(CVR); 8330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 834949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 835949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 836949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 837949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 838949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 839949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 840949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 841949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 842949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 843949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 844949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 845949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 846949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 847949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // C++ 8.3.3p3: A pointer to member shall not pointer to ... a member 848949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 849949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 8508d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 851ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 852949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 853949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 854949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 855949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 856949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 857949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 858949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 859949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 860949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 861949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Enforce C99 6.7.3p2: "Types other than pointer types derived from 862949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // object or incomplete types shall not be restrict-qualified." 8630953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Quals.hasRestrict() && !T->isIncompleteOrObjectType()) { 864949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_typecheck_invalid_restrict_invalid_pointee) 865949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << T; 866949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 867949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 868949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 8690953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeRestrict(); 870949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 871949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 872949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 873949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 874949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 875949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 876949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 8770953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Context.getQualifiedType( 8780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Context.getMemberPointerType(T, Class.getTypePtr()), Quals); 879949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 8801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8819a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 8829a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8839a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 8849a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8850953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR The cvr-qualifiers to be applied to the block pointer type. 8869a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8879a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Loc The location of the entity whose type involves this 8889a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// block pointer type or, if there is no such entity, the location of the 8899a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type that will have block pointer type. 8909a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8919a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 8929a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 8939a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8949a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 8959a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 8960953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType Sema::BuildBlockPointerType(QualType T, unsigned CVR, 8971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 8989a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 8990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 9009a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 9019a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 9029a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 9031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(CVR); 9050953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Context.getQualifiedType(Context.getBlockPointerType(T), Quals); 9069a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 9079a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 908a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallQualType Sema::GetTypeFromParser(TypeTy *Ty, TypeSourceInfo **TInfo) { 909e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QualType QT = QualType::getFromOpaquePtr(Ty); 9103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 911a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 9123f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 9133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 9143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 915a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 916e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis if (LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 917e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 918a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 919e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 9201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 921a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 922e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 923e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 924e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 92598eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump/// GetTypeForDeclarator - Convert the type for the specified 9268ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl/// declarator to Type instances. 927402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// 928402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// If OwnedDecl is non-NULL, and this declarator's decl-specifier-seq 929402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// owns the declaration of a type (e.g., the definition of a struct 930402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// type), then *OwnedDecl will receive the owned declaration. 931a1d5662d96465f0fddf8819d245da4d19b892effArgyrios KyrtzidisQualType Sema::GetTypeForDeclarator(Declarator &D, Scope *S, 932a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo **TInfo, 933402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor TagDecl **OwnedDecl) { 934930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Determine the type of the declarator. Not all forms of declarator 935930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // have a type. 936930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 93705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TypeSourceInfo *ReturnTypeInfo = 0; 93805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 93904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall llvm::SmallVector<DelayedAttribute,4> FnAttrsFromDeclSpec; 94004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 9413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 9423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 9433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 9440486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 9453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 94604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall T = ConvertDeclSpecToType(*this, D, FnAttrsFromDeclSpec); 9475db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 948591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (!D.isInvalidType() && D.getDeclSpec().isTypeSpecOwned()) { 949591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor TagDecl* Owned = cast<TagDecl>((Decl *)D.getDeclSpec().getTypeRep()); 950b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor // Owned is embedded if it was defined here, or if it is the 951b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor // very first (i.e., canonical) declaration of this tag type. 952b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor Owned->setEmbeddedInDeclarator(Owned->isDefinition() || 953b37b648b3f2bba4c557a1604ced19b526b25a372Douglas Gregor Owned->isCanonicalDecl()); 954591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor if (OwnedDecl) *OwnedDecl = Owned; 955591bd3cb605f1f0229b4b1d8a4b8183377064ec5Douglas Gregor } 956930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 957930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 9583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 9590efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 9603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 961930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 96248026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // "void" instead. 963930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor T = Context.VoidTy; 96405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor 96505baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor if (TInfo) 96605baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor ReturnTypeInfo = Context.getTrivialTypeSourceInfo(T, 96705baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor D.getName().StartLocation); 968930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 96948026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 97048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 97148026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 97248026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 97305baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor T = GetTypeFromParser(D.getName().ConversionFunctionId, 97405baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor TInfo? &ReturnTypeInfo : 0); 97548026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 976930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 977f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 9781f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor if (T.isNull()) 9791f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor return T; 9801f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor 981baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (T == Context.UndeducedAutoTy) { 982baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 9831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 984baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 985baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 986baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson assert(0 && "K&R type lists aren't allowed in C++"); 987baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 988baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 989baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 0; // Function prototype 990baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 991baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 992baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (cast<TagDecl>(CurContext)->getTagKind()) { 993baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case TagDecl::TK_enum: assert(0 && "unhandled tag kind"); break; 994baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case TagDecl::TK_struct: Error = 1; /* Struct member */ break; 995baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case TagDecl::TK_union: Error = 2; /* Union member */ break; 996baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case TagDecl::TK_class: Error = 3; /* Class member */ break; 9971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 998baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 999baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 1000baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 4; // Exception declaration 1001baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1002baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 1003baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 5; // Template parameter 1004baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1005baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 1006baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 6; // Block literal 1007baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1008baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 1009baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 1010baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 1011baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 1012baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TypeNameContext: 1013baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 1014baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1015baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 1016baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 1017baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Diag(D.getDeclSpec().getTypeSpecTypeLoc(), diag::err_auto_not_allowed) 1018baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson << Error; 1019baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson T = Context.IntTy; 1020baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 1021baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 1022baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 10231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1024cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 1025cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 1026cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 1027cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 10281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 102904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall llvm::SmallVector<DelayedAttribute,4> FnAttrsFromPreviousChunk; 103004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 103198eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 103298eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 103398eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 10348ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 10358ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl DeclaratorChunk &DeclType = D.getTypeObject(e-i-1); 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown decltype!"); 10385618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 10399af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 10409af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 10419af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner Diag(DeclType.Loc, diag::err_blocks_disable); 10421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T = BuildBlockPointerType(T, DeclType.Cls.TypeQuals, D.getIdentifierLoc(), 10449a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Name); 10455618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 10476a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 10486a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 10496a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 10506a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 10516a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 10526a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 10536a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 105414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (getLangOptions().ObjC1 && T->isObjCInterfaceType()) { 1055183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>(); 105614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff T = Context.getObjCObjectPointerType(T, 1057cb421fa690da545b58a720abe5f1c49b166dbde7Dan Gohman const_cast<ObjCProtocolDecl **>( 1058cb421fa690da545b58a720abe5f1c49b166dbde7Dan Gohman OIT->qual_begin()), 1059a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian OIT->getNumProtocols(), 1060a42286486c85402c65f9d30df17e6b1b037a6adeFariborz Jahanian DeclType.Ptr.TypeQuals); 106114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 106214108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 1063cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = BuildPointerType(T, DeclType.Ptr.TypeQuals, DeclType.Loc, Name); 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 10660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals; 10670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (DeclType.Ref.HasRestrict) Quals.addRestrict(); 10680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10696a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 10706a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 10716a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 10726a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 10736a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 10746a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 10756a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 10760953e767ff7817f97b3ab20896b229891eeff45bJohn McCall T = BuildReferenceType(T, DeclType.Ref.LValueRef, Quals, 1077cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclType.Loc, Name); 10785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10790953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 10816a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 10826a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 10836a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 10846a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 10856a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 10866a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 10876a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 1088fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 108994f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 1097f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star && 1098f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.getContext() != Declarator::PrototypeContext) { 1099f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 1100f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 1101f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 1102f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 1103f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 1104f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 1105f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 11060953e767ff7817f97b3ab20896b229891eeff45bJohn McCall T = BuildArrayType(T, ASM, ArraySize, 11070953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::fromCVRMask(ATI.TypeQuals), 11087e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 11095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1111f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 11163cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 1117cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner // C99 6.7.5.3p1: The return type may not be a function or array type. 111858408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor // For conversion functions, we'll diagnose this particular error later. 111948026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor if ((T->isArrayType() || T->isFunctionType()) && 112048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 112158408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(DeclType.Loc, diag::err_func_returning_array_function) 112258408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1123cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner T = Context.IntTy; 1124cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner D.setInvalidType(true); 1125cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner } 1126465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1127402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 1128402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 1129402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 1130402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor TagDecl *Tag = cast<TagDecl>((Decl *)D.getDeclSpec().getTypeRep()); 1131402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (Tag->isDefinition()) 1132402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 1133402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 1134402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 1135402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 11363cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 11373cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 11383cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl if (FTI.hasExceptionSpec && 11393cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 11403cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl Diag(FTI.getThrowLoc(), diag::err_exception_spec_in_typedef); 11413cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 1142eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (FTI.NumArgs == 0) { 1143c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis if (getLangOptions().CPlusPlus) { 1144c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis // C++ 8.3.5p2: If the parameter-declaration-clause is empty, the 1145c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis // function takes no arguments. 1146465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl llvm::SmallVector<QualType, 4> Exceptions; 1147465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl Exceptions.reserve(FTI.NumExceptions); 11481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (unsigned ei = 0, ee = FTI.NumExceptions; ei != ee; ++ei) { 1149e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 1150e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QualType ET = GetTypeFromParser(FTI.Exceptions[ei].Ty); 1151ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // Check that the type is valid for an exception spec, and drop it 1152ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // if not. 1153ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl if (!CheckSpecifiedExceptionType(ET, FTI.Exceptions[ei].Range)) 1154ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl Exceptions.push_back(ET); 1155ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 1156465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl T = Context.getFunctionType(T, NULL, 0, FTI.isVariadic, FTI.TypeQuals, 1157465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasExceptionSpec, 1158465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasAnyExceptionSpec, 1159ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor Exceptions.size(), Exceptions.data(), 1160264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo()); 1161965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } else if (FTI.isVariadic) { 1162965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor // We allow a zero-parameter variadic function in C if the 1163965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor // function is marked with the "overloadable" 1164965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor // attribute. Scan for this attribute now. 1165965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 1166965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 1167965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 1168965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (Attrs->getKind() == AttributeList::AT_overloadable) { 1169965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 1170965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 1171965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1172965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1173965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 1174965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 1175965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 1176ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor T = Context.getFunctionType(T, NULL, 0, FTI.isVariadic, 0, 1177264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, false, 0, 0, 1178264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo()); 1179c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } else { 1180c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis // Simple void foo(), where the incoming T is the result type. 118172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor T = Context.getFunctionNoProtoType(T); 1182c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 1183eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (FTI.ArgInfo[0].Param == 0) { 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function definition. 11851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 118654e14c4db764c0636160d26c5bbf491637c83a76John McCall D.setInvalidType(true); 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 11905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> ArgTys; 11911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 1193b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner ParmVarDecl *Param = 1194b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner cast<ParmVarDecl>(FTI.ArgInfo[i].Param.getAs<Decl>()); 11958123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner QualType ArgTy = Param->getType(); 119678c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 11972dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 11982dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Adjust the parameter type. 1199beb58cb83bd53b79b80fc6f9952efd985934cbfcDouglas Gregor assert((ArgTy == adjustParameterType(ArgTy)) && "Unadjusted type?"); 12002dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 120372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 12042dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DeclType.Loc, diag::err_void_only_param); 12102ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 12118123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 12122ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 12132ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(FTI.ArgInfo[i].IdentLoc, 12154565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 12162ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 12178123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 12182ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 12192ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 12200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 12212ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner Diag(DeclType.Loc, diag::err_void_param_qualified); 12221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12232ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 12242ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 12252ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 1226eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 1227eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 1228a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 1229183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 1230eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (BTy->getKind() == BuiltinType::Float) 1231eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 1232eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 123554e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1237465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1238465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl llvm::SmallVector<QualType, 4> Exceptions; 1239465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl Exceptions.reserve(FTI.NumExceptions); 12401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (unsigned ei = 0, ee = FTI.NumExceptions; ei != ee; ++ei) { 1241e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 1242e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QualType ET = GetTypeFromParser(FTI.Exceptions[ei].Ty); 1243ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // Check that the type is valid for an exception spec, and drop it if 1244ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // not. 1245ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl if (!CheckSpecifiedExceptionType(ET, FTI.Exceptions[ei].Range)) 1246ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl Exceptions.push_back(ET); 1247ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 1248465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1249beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad T = Context.getFunctionType(T, ArgTys.data(), ArgTys.size(), 1250465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.isVariadic, FTI.TypeQuals, 1251465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasExceptionSpec, 1252465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasAnyExceptionSpec, 1253ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor Exceptions.size(), Exceptions.data(), 1254264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola FunctionType::ExtInfo()); 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 125604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 125704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // For GCC compatibility, we allow attributes that apply only to 125804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // function types to be placed on a function's return type 125904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // instead (as long as that type doesn't happen to be function 126004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // or function-pointer itself). 126104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall ProcessDelayedFnAttrs(*this, T, FnAttrsFromPreviousChunk); 126204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 12635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 12645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1265f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 12664994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl // Verify that we're not building a pointer to pointer to function with 12674994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl // exception specification. 12684994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 12694994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 12704994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl D.setInvalidType(true); 12714994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl // Build the type anyway. 12724994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl } 1273f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 1274f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 1275edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (DeclType.Mem.Scope().isInvalid()) { 1276edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin // Avoid emitting extra errors if we already errored on the scope. 1277edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin D.setInvalidType(true); 1278edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin } else if (isDependentScopeSpecifier(DeclType.Mem.Scope()) 1279edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin || dyn_cast_or_null<CXXRecordDecl>( 128087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor computeDeclContext(DeclType.Mem.Scope()))) { 12811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 1282949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor = (NestedNameSpecifier *)DeclType.Mem.Scope().getScopeRep(); 128387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 128487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 128587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 12864a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor ClsType = Context.getDependentNameType(ETK_None, NNSPrefix, 12874a2023f5014e82389d5980d307b89c545dbbac81Douglas Gregor NNS->getAsIdentifier()); 128887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 128987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 129087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 129187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 12929f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 129387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 129487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 129587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 129687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 129787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 129887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (NNSPrefix) 129987c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = Context.getQualifiedNameType(NNSPrefix, ClsType); 130087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 130187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 1302f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 1303949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(DeclType.Mem.Scope().getBeginLoc(), 1304949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 1305949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 1306949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 1307f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 1308f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1309f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1310949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 1311949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = BuildMemberPointerType(T, ClsType, DeclType.Mem.TypeQuals, 1312949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclType.Loc, D.getIdentifier()); 1313949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 1314f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 1315949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 1316f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1317f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 1318f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1319f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1320cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 1321cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 1322cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 1323cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1324cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 132504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DiagnoseDelayedFnAttrs(*this, FnAttrsFromPreviousChunk); 132604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 1327c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 1328c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner if (const AttributeList *AL = DeclType.getAttrs()) 1329328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessTypeAttributeList(*this, T, false, AL, FnAttrsFromPreviousChunk); 13305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1331971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1332971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (getLangOptions().CPlusPlus && T->isFunctionType()) { 1333183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 1334778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 1335971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1336971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // C++ 8.3.5p4: A cv-qualifier-seq shall only be part of the function type 1337971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // for a nonstatic member function, the function type to which a pointer 1338971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // to member refers, or the top-level function type of a function typedef 1339971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // declaration. 1340971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (FnTy->getTypeQuals() != 0 && 1341971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef && 1342584049d49d956add7bce5669e9823491f7d8de78Douglas Gregor ((D.getContext() != Declarator::MemberContext && 1343584049d49d956add7bce5669e9823491f7d8de78Douglas Gregor (!D.getCXXScopeSpec().isSet() || 1344f59a56e180bf54528d7d1d5afa68fcc13300965aDouglas Gregor !computeDeclContext(D.getCXXScopeSpec(), /*FIXME:*/true) 1345f59a56e180bf54528d7d1d5afa68fcc13300965aDouglas Gregor ->isRecord())) || 1346971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static)) { 1347971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (D.isFunctionDeclarator()) 1348971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis Diag(D.getIdentifierLoc(), diag::err_invalid_qualified_function_type); 1349971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis else 1350971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis Diag(D.getIdentifierLoc(), 1351971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis diag::err_invalid_qualified_typedef_function_type_use); 1352971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1353971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // Strip the cv-quals from the type. 1354971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis T = Context.getFunctionType(FnTy->getResultType(), FnTy->arg_type_begin(), 1355ce056bcaa1c97b89a4b2de2112c62d060863be2bDouglas Gregor FnTy->getNumArgs(), FnTy->isVariadic(), 0, 1356264ba48dc98f3f843935a485d5b086f7e0fdc4f1Rafael Espindola false, false, 0, 0, FunctionType::ExtInfo()); 1357971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 1358971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 13591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 136004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Process any function attributes we might have delayed from the 136104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // declaration-specifiers. 136204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall ProcessDelayedFnAttrs(*this, T, FnAttrsFromDeclSpec); 136304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 136404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // If there were any type attributes applied to the decl itself, not 136504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // the type, apply them to the result type. But don't do this for 136604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // block-literal expressions, which are parsed wierdly. 136704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (D.getContext() != Declarator::BlockLiteralContext) 136804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (const AttributeList *Attrs = D.getAttributes()) 1369328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessTypeAttributeList(*this, T, false, Attrs, 1370328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis FnAttrsFromPreviousChunk); 137104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 137204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DiagnoseDelayedFnAttrs(*this, FnAttrsFromPreviousChunk); 13734adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 1374a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) { 137554e14c4db764c0636160d26c5bbf491637c83a76John McCall if (D.isInvalidType()) 1376a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall *TInfo = 0; 137754e14c4db764c0636160d26c5bbf491637c83a76John McCall else 137805baacbfd67017b2724f3e0503fd23609f5d32bcDouglas Gregor *TInfo = GetTypeSourceInfoForDeclarator(D, T, ReturnTypeInfo); 137954e14c4db764c0636160d26c5bbf491637c83a76John McCall } 13804adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 13815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T; 13825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 138451bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 138551bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 138651bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 1387f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 138851bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 138951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TypeSpecLocFiller(const DeclSpec &DS) : DS(DS) {} 1390f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 139151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 139251bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 139351bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 139451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 139551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 139651bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 139751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 139851bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 139954e14c4db764c0636160d26c5bbf491637c83a76John McCall 140054e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 140154e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 140254e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 140354e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 140454e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 140554e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 140654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 140754e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 140854e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 140954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 141054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 141154e14c4db764c0636160d26c5bbf491637c83a76John McCall } 141251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 141354e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 141451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 141551bd803fbdade51d674598ed45da3d54190a656cJohn McCall 141654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 141754e14c4db764c0636160d26c5bbf491637c83a76John McCall 141854e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 141954e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 142054e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 142154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasProtocolsAsWritten(true); 142254e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 142354e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 142454e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 142554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 142654e14c4db764c0636160d26c5bbf491637c83a76John McCall 142754e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 142854e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 142954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasProtocolsAsWritten(false); 143054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 143154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 143254e14c4db764c0636160d26c5bbf491637c83a76John McCall } 143354e14c4db764c0636160d26c5bbf491637c83a76John McCall 143454e14c4db764c0636160d26c5bbf491637c83a76John McCall // This might not have been written with an inner type. 143554e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 143654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasBaseTypeAsWritten(false); 143754e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.getBaseTypeLoc().initialize(SourceLocation()); 143854e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 143954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasBaseTypeAsWritten(true); 144051bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getBaseTypeLoc()); 144154e14c4db764c0636160d26c5bbf491637c83a76John McCall } 144251bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 1443833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 1444a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 1445a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Sema::GetTypeFromParser(DS.getTypeRep(), &TInfo); 1446833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1447833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 1448833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 1449a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 1450833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TL.initialize(DS.getTypeSpecTypeLoc()); 1451833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 1452833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 1453833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1454833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateSpecializationTypeLoc OldTL = 1455a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall cast<TemplateSpecializationTypeLoc>(TInfo->getTypeLoc()); 1456833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TL.copy(OldTL); 1457833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 1458cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 1459cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 1460cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 1461cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 1462cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 1463cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 1464cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 1465cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 1466cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 1467cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeRep()); 1468cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 1469cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall Sema::GetTypeFromParser(DS.getTypeRep(), &TInfo); 1470cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 1471cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 1472ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor void VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 1473ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // By default, use the source location of the type specifier. 1474ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecTypeLoc()); 1475ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.needsExtraLocalData()) { 1476ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Set info for the written builtin specifiers. 1477ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.getWrittenBuiltinSpecs() = DS.getWrittenBuiltinSpecs(); 1478ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Try to have a meaningful source location. 1479ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor if (TL.getWrittenSignSpec() != TSS_unspecified) 1480ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Sign spec loc overrides the others (e.g., 'unsigned long'). 1481ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecSignLoc()); 1482ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor else if (TL.getWrittenWidthSpec() != TSW_unspecified) 1483ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor // Width spec loc overrides type spec loc (e.g., 'short int'). 1484ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor TL.setBuiltinLoc(DS.getTypeSpecWidthLoc()); 1485ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 1486ddf889a2ad2888f1dea573987bbe952d9912c1a0Douglas Gregor } 148751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 148851bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 148951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.initialize(DS.getTypeSpecTypeLoc()); 149051bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 149151bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 1492eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 149351bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 149451bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 1495f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 149651bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 149751bd803fbdade51d674598ed45da3d54190a656cJohn McCall DeclaratorLocFiller(const DeclaratorChunk &Chunk) : Chunk(Chunk) {} 14984adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 149951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 15009f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 150151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 15024adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 150351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 150451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 150551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 15064adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 150751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 150851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 150951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 15104adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 151151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 151251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 151351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 151454e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasBaseTypeAsWritten(true); 151554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasProtocolsAsWritten(false); 151654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 151754e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 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 } 164057373266011f73418381b736015d8d2bb0381176Douglas Gregor return false; 164157373266011f73418381b736015d8d2bb0381176Douglas Gregor} 164257373266011f73418381b736015d8d2bb0381176Douglas Gregor 1643cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian RedlSema::TypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 16445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 16455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 16465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 16471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1648a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 1649402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor TagDecl *OwnedTag = 0; 1650a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall QualType T = GetTypeForDeclarator(D, S, &TInfo, &OwnedTag); 16515153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 1652809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 16535912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 1654402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus) { 1655402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 16566d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 16576d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor 1658402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++0x [dcl.type]p3: 1659402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // A type-specifier-seq shall not define a class or enumeration 1660402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // unless it appears in the type-id of an alias-declaration 1661402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // (7.1.3). 1662402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (OwnedTag && OwnedTag->isDefinition()) 1663402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(OwnedTag->getLocation(), diag::err_type_defined_in_type_specifier) 1664402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(OwnedTag); 1665402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 1666402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 1667a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) 1668a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall T = CreateLocInfoType(T, TInfo); 1669e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 16705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T.getAsOpaquePtr(); 16715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 16725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1673c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1674c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1675c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 1676c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 1677c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 1678232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 1679232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 1680c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 1681c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 16821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 1683c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 16840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1685232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 1686232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Clause 6.7.3 - Type qualifiers: "No type shall be qualified by qualifiers 1687232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // for two or more different address spaces." 1688232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 1689c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 1690c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1691232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 16921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1693232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 1694545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 1695f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1696c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1697232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 1698545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *ASArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1699232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 1700c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner if (!ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 1701dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_space_not_int) 1702dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner << ASArgExpr->getSourceRange(); 1703c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1704232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 1705232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 1706efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 1707efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 1708efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 1709efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 1710efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 1711efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 1712efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1713efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 1714efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1715efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 17160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 1717efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 1718efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 17190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall << Qualifiers::MaxAddressSpace << ASArgExpr->getSourceRange(); 1720efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 1721efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1722efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 17231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 1724f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 1725c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 1726c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1727d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian/// HandleObjCGCTypeAttribute - Process an objc's gc attribute on the 1728d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian/// specified type. The attribute contains 1 argument, weak or strong. 17291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleObjCGCTypeAttribute(QualType &Type, 17303b6b83b8311ecdfa43cbb37ccc38c107d3b8d88bChris Lattner const AttributeList &Attr, Sema &S) { 17310953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Type.getObjCGCAttr() != Qualifiers::GCNone) { 17325934e75d98d99374f72722a69c5eefe026f35c74Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_multiple_objc_gc); 1733d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1734d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 17351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1736d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 17371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Attr.getParameterName()) { 1738ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 1739ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian << "objc_gc" << 1; 1740ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian return; 1741ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 17420953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 1743ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian if (Attr.getNumArgs() != 0) { 1744d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1745d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1746d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 17471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (Attr.getParameterName()->isStr("weak")) 17480953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 1749d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else if (Attr.getParameterName()->isStr("strong")) 17500953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 1751d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 1752d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 1753d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian << "objc_gc" << Attr.getParameterName(); 1754d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1755d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 17561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17573b6b83b8311ecdfa43cbb37ccc38c107d3b8d88bChris Lattner Type = S.Context.getObjCGCQualType(Type, GCAttr); 1758d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1759d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 176004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall/// Process an individual function attribute. Returns true if the 176104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall/// attribute does not make sense to apply to this type. 176204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallbool ProcessFnAttr(Sema &S, QualType &Type, const AttributeList &Attr) { 176304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (Attr.getKind() == AttributeList::AT_noreturn) { 176404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Complain immediately if the arg count is wrong. 176504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (Attr.getNumArgs() != 0) { 176604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 176704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 176804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 17692455636163fdd18581d7fdae816433f886d88213Mike Stump 177004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if this is not a function or pointer to block. 177104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!Type->isFunctionPointerType() 177204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall && !Type->isBlockPointerType() 177304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall && !Type->isFunctionType()) 177404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return true; 17752455636163fdd18581d7fdae816433f886d88213Mike Stump 177604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise we can process right away. 177704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Type = S.Context.getNoReturnType(Type); 177804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 177904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 17802455636163fdd18581d7fdae816433f886d88213Mike Stump 1781425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (Attr.getKind() == AttributeList::AT_regparm) { 1782425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // The warning is emitted elsewhere 1783425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (Attr.getNumArgs() != 1) { 1784425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return false; 1785425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 1786425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1787425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Delay if this is not a function or pointer to block. 1788425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (!Type->isFunctionPointerType() 1789425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola && !Type->isBlockPointerType() 1790425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola && !Type->isFunctionType()) 1791425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return true; 1792425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1793425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // Otherwise we can process right away. 1794425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 1795425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola llvm::APSInt NumParams(32); 1796425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1797425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola // The warning is emitted elsewhere 1798425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola if (!NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) 1799425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return false; 1800425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 1801425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola Type = S.Context.getRegParmType(Type, NumParams.getZExtValue()); 1802425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola return false; 1803425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola } 1804425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola 180504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Otherwise, a calling convention. 180604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (Attr.getNumArgs() != 0) { 180704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 180804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 180904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 1810f82b4e85b1219295cad4b5851b035575bc293010John McCall 181104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall QualType T = Type; 181204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (const PointerType *PT = Type->getAs<PointerType>()) 181304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall T = PT->getPointeeType(); 181404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall const FunctionType *Fn = T->getAs<FunctionType>(); 181504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 181604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Delay if the type didn't work out to a function. 181704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (!Fn) return true; 181804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 181904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // TODO: diagnose uses of these conventions on the wrong target. 182004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall CallingConv CC; 182104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall switch (Attr.getKind()) { 182204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: CC = CC_C; break; 182304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; 182404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; 182504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall default: llvm_unreachable("unexpected attribute kind"); return false; 182604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 182704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 182804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall CallingConv CCOld = Fn->getCallConv(); 1829064f7db69def9299f5f4d9a32114afc10b6a6420Charles Davis if (S.Context.getCanonicalCallConv(CC) == 1830064f7db69def9299f5f4d9a32114afc10b6a6420Charles Davis S.Context.getCanonicalCallConv(CCOld)) return false; 183104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 183204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CCOld != CC_Default) { 183304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Should we diagnose reapplications of the same convention? 183404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 183504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC) 183604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CCOld); 183704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 183804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 183904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 184004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall // Diagnose the use of X86 fastcall on varargs or unprototyped functions. 184104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (CC == CC_X86FastCall) { 184204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (isa<FunctionNoProtoType>(Fn)) { 184304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_cconv_knr) 184404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 184504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 184604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 184704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 184804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall const FunctionProtoType *FnP = cast<FunctionProtoType>(Fn); 184904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall if (FnP->isVariadic()) { 185004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall S.Diag(Attr.getLoc(), diag::err_cconv_varargs) 185104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << FunctionType::getNameForCallConv(CC); 185204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 185304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 185404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall } 1855f82b4e85b1219295cad4b5851b035575bc293010John McCall 185604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall Type = S.Context.getCallConvType(Type, CC); 185704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall return false; 1858f82b4e85b1219295cad4b5851b035575bc293010John McCall} 1859f82b4e85b1219295cad4b5851b035575bc293010John McCall 18606e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 18616e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 18626e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 18636e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 18646e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 18656e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 18666e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 18676e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompsonstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, Sema &S) { 18686e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Check the attribute arugments. 18696e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 18706e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 18716e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 18726e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 18736e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 18746e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 18756e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (!sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 18766e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 18776e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << "vector_size" << sizeExpr->getSourceRange(); 18786e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 18796e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 18806e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the base type must be integer or float, and can't already be a vector. 18816e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (CurType->isVectorType() || 18826e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson (!CurType->isIntegerType() && !CurType->isRealFloatingType())) { 18836e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 18846e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 18856e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 18866e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 18876e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 18886e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 18896e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 18906e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 18916e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 18926e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 18936e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 18946e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 18956e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 18966e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 18976e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 18986e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 18996e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 19006e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 19016e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 19026e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 19036e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 190482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson CurType = S.Context.getVectorType(CurType, vectorSize/typeSize, false, false); 19056e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 19066e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 190704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCallvoid ProcessTypeAttributeList(Sema &S, QualType &Result, 1908328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis bool IsDeclSpec, const AttributeList *AL, 190904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall DelayedAttributeSet &FnAttrs) { 1910c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 1911c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 1912c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 1913c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 1914c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner for (; AL; AL = AL->getNext()) { 1915b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // If this is an attribute we can handle, do so now, 1916b1f1b267351be74013f966f4834cde1eddbe0233Abramo Bagnara // otherwise, add it to the FnAttrs list for rechaining. 1917c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner switch (AL->getKind()) { 1918c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner default: break; 191904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 1920c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner case AttributeList::AT_address_space: 192104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall HandleAddressSpaceTypeAttribute(Result, *AL, S); 1922c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 1923d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian case AttributeList::AT_objc_gc: 192404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall HandleObjCGCTypeAttribute(Result, *AL, S); 1925d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 192604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_vector_size: 192704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall HandleVectorSizeAttr(Result, *AL, S); 1928f82b4e85b1219295cad4b5851b035575bc293010John McCall break; 192904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall 193004a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_noreturn: 193104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 193204a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 1933f82b4e85b1219295cad4b5851b035575bc293010John McCall case AttributeList::AT_stdcall: 1934425ef72306d4ff6b3698b744353e5f0e56b4b884Rafael Espindola case AttributeList::AT_regparm: 1935328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis // Don't process these on the DeclSpec. 1936328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis if (IsDeclSpec || 1937328ce34c7d0c4e8696d352853b48b385dec1fef4Charles Davis ProcessFnAttr(S, Result, *AL)) 193804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall FnAttrs.push_back(DelayedAttribute(AL, Result)); 19396e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 1940c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 1941c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 1942232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 1943232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 19441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 19454ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 19464ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 19474ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 194886447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 194986447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 195086447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 195186447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 195286447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 19534ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 19544ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 19554ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 19564ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 19574ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 19584ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 19591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @param PD The partial diagnostic that will be printed out if T is not a 1960b790661a15d93941d2c33a0ea328254277b3d7e3Anders Carlsson/// complete type. 19614ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 19624ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 19634ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 196491a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 19658c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson const PartialDiagnostic &PD, 19668c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson std::pair<SourceLocation, 19678c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson PartialDiagnostic> Note) { 196891a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson unsigned diag = PD.getDiagID(); 19691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1970573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 1971573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 1972690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 1973690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 1974690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 19751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 1976690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 1977690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 19784ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 19794ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (!T->isIncompleteType()) 19804ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 19814ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 1982d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 1983923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 1984923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 1985923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 198689c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor if (const ConstantArrayType *Array = Context.getAsConstantArrayType(T)) 1987923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 1988923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 19892943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 1990d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 1991972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 1992972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 1993d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 19945842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor /*Complain=*/diag != 0); 19951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 1996d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 1997d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass()) { 1998b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor MemberSpecializationInfo *MSInfo = Rec->getMemberSpecializationInfo(); 1999b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor assert(MSInfo && "Missing member specialization information?"); 2000357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 2001b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor if (MSInfo->getTemplateSpecializationKind() 2002972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor != TSK_ExplicitSpecialization) 2003f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 2004f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 2005f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 2006f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor /*Complain=*/diag != 0); 2007d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 2008d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 2009d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 20102943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 20115842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor if (diag == 0) 20125842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 20131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 201401620704304f819b82ecef769ec114e541a364d7Rafael Espindola const TagType *Tag = 0; 201501620704304f819b82ecef769ec114e541a364d7Rafael Espindola if (const RecordType *Record = T->getAs<RecordType>()) 201601620704304f819b82ecef769ec114e541a364d7Rafael Espindola Tag = Record; 201701620704304f819b82ecef769ec114e541a364d7Rafael Espindola else if (const EnumType *Enum = T->getAs<EnumType>()) 201801620704304f819b82ecef769ec114e541a364d7Rafael Espindola Tag = Enum; 201901620704304f819b82ecef769ec114e541a364d7Rafael Espindola 202001620704304f819b82ecef769ec114e541a364d7Rafael Espindola // Avoid diagnosing invalid decls as incomplete. 202101620704304f819b82ecef769ec114e541a364d7Rafael Espindola if (Tag && Tag->getDecl()->isInvalidDecl()) 202201620704304f819b82ecef769ec114e541a364d7Rafael Espindola return true; 202301620704304f819b82ecef769ec114e541a364d7Rafael Espindola 20244ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 202591a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson Diag(Loc, PD) << T; 20263c0eb160ca1361a82b9f15b3b40a2425adc14d0fEli Friedman 20278c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson // If we have a note, produce it. 20288c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson if (!Note.first.isInvalid()) 20298c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson Diag(Note.first, Note.second); 20308c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson 20314ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 203201620704304f819b82ecef769ec114e541a364d7Rafael Espindola // type, produce a note. 20334ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 20341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 20354ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 20364ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 20374ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor << QualType(Tag, 0); 20384ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 20394ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 20404ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 2041e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 2042fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 2043fe6b2d481d91140923f4541f273b253291884214Douglas Gregor const PartialDiagnostic &PD) { 2044fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PD, 2045fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 2046fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 2047fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 2048fe6b2d481d91140923f4541f273b253291884214Douglas Gregorbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 2049fe6b2d481d91140923f4541f273b253291884214Douglas Gregor unsigned DiagID) { 2050fe6b2d481d91140923f4541f273b253291884214Douglas Gregor return RequireCompleteType(Loc, T, PDiag(DiagID), 2051fe6b2d481d91140923f4541f273b253291884214Douglas Gregor std::make_pair(SourceLocation(), PDiag(0))); 2052fe6b2d481d91140923f4541f273b253291884214Douglas Gregor} 2053fe6b2d481d91140923f4541f273b253291884214Douglas Gregor 2054e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor/// \brief Retrieve a version of the type 'T' that is qualified by the 2055e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor/// nested-name-specifier contained in SS. 2056e6258936178b4c52b43b3b9dbec13552961cd645Douglas GregorQualType Sema::getQualifiedNameType(const CXXScopeSpec &SS, QualType T) { 2057e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor if (!SS.isSet() || SS.isInvalid() || T.isNull()) 2058e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 20591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2060ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor NestedNameSpecifier *NNS 20613507369940bfb269551bfa1fec812481f60e3552Douglas Gregor = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 2062ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor return Context.getQualifiedNameType(NNS, T); 2063e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 2064af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 2065af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders CarlssonQualType Sema::BuildTypeofExprType(Expr *E) { 20664b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (E->getType() == Context.OverloadTy) { 20674b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // C++ [temp.arg.explicit]p3 allows us to resolve a template-id to a 20684b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // function template specialization wherever deduction cannot occur. 20694b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (FunctionDecl *Specialization 20704b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor = ResolveSingleFunctionTemplateSpecialization(E)) { 2071161755a09898c95d21bfff33707da9ca41cd53c5John McCall // The access doesn't really matter in this case. 2072161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair Found = DeclAccessPair::make(Specialization, 2073161755a09898c95d21bfff33707da9ca41cd53c5John McCall Specialization->getAccess()); 2074161755a09898c95d21bfff33707da9ca41cd53c5John McCall E = FixOverloadedFunctionReference(E, Found, Specialization); 20754b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (!E) 20764b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 20774b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } else { 20784b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Diag(E->getLocStart(), 20794b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor diag::err_cannot_determine_declared_type_of_overloaded_function) 20804b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor << false << E->getSourceRange(); 20814b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 20824b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 20834b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 20844b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 2085af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 2086af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 2087af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 2088af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders CarlssonQualType Sema::BuildDecltypeType(Expr *E) { 2089af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (E->getType() == Context.OverloadTy) { 20904b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // C++ [temp.arg.explicit]p3 allows us to resolve a template-id to a 20914b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // function template specialization wherever deduction cannot occur. 20924b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (FunctionDecl *Specialization 20934b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor = ResolveSingleFunctionTemplateSpecialization(E)) { 2094161755a09898c95d21bfff33707da9ca41cd53c5John McCall // The access doesn't really matter in this case. 2095161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair Found = DeclAccessPair::make(Specialization, 2096161755a09898c95d21bfff33707da9ca41cd53c5John McCall Specialization->getAccess()); 2097161755a09898c95d21bfff33707da9ca41cd53c5John McCall E = FixOverloadedFunctionReference(E, Found, Specialization); 20984b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (!E) 20994b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 21004b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } else { 21014b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Diag(E->getLocStart(), 21024b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor diag::err_cannot_determine_declared_type_of_overloaded_function) 21034b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor << true << E->getSourceRange(); 21044b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 21054b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 2106af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 21074b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 2108af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getDecltypeType(E); 2109af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 2110