SemaType.cpp revision cfb708c354e2f30ccc5cba9d644650f408a1ec3e
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 71930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// \brief Convert the specified declspec to the appropriate type 72930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor/// object. 735db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner/// \param D the declarator containing the declaration specifier. 745153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// \returns The type described by the declaration specifiers. This function 755153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner/// never returns null. 768ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redlstatic QualType ConvertDeclSpecToType(Declarator &TheDeclarator, Sema &TheSema){ 775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: Should move the logic from DeclSpec::Finish to here for validity 785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // checking. 795db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner const DeclSpec &DS = TheDeclarator.getDeclSpec(); 805db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner SourceLocation DeclLoc = TheDeclarator.getIdentifierLoc(); 815db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (DeclLoc.isInvalid()) 825db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner DeclLoc = DS.getSourceRange().getBegin(); 831564e3906cad604a42bd131e584751a75589a9c4Chris Lattner 841564e3906cad604a42bd131e584751a75589a9c4Chris Lattner ASTContext &Context = TheSema.Context; 851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 865db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner QualType Result; 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecType()) { 8896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner case DeclSpec::TST_void: 8996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Result = Context.VoidTy; 9096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner break; 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_char: 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 93fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.CharTy; 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) 95fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.SignedCharTy; 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else { 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Unknown TSS value"); 99fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.UnsignedCharTy; 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 101958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 10264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case DeclSpec::TST_wchar: 10364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (DS.getTypeSpecSign() == DeclSpec::TSS_unspecified) 10464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.WCharTy; 10564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis else if (DS.getTypeSpecSign() == DeclSpec::TSS_signed) { 1061564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 107f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 10864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getSignedWCharType(); 10964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } else { 11064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis assert(DS.getTypeSpecSign() == DeclSpec::TSS_unsigned && 11164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis "Unknown TSS value"); 1121564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecSignLoc(), diag::ext_invalid_sign_spec) 113f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner << DS.getSpecifierName(DS.getTypeSpecType()); 11464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Result = Context.getUnsignedWCharType(); 11564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis } 11664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 117f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char16: 118f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 119f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 120f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char16Ty; 121f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 122f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case DeclSpec::TST_char32: 123f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith assert(DS.getTypeSpecSign() == DeclSpec::TSS_unspecified && 124f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith "Unknown TSS value"); 125f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith Result = Context.Char32Ty; 126f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 127d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner case DeclSpec::TST_unspecified: 12862f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner // "<proto1,proto2>" is an objc qualified ID with a missing id. 129097e916b617bb4a069a03764024c310ed42a6424Chris Lattner if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 1301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result = Context.getObjCObjectPointerType(Context.ObjCBuiltinIdTy, 13114108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff (ObjCProtocolDecl**)PQ, 132683087ffcf21d2a22cd2d0424b7f119168b47a8eSteve Naroff DS.getNumProtocolQualifiers()); 13362f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner break; 13462f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner } 1355db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 1365db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // If this is a missing declspec in a block literal return context, then it 1375db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner // is inferred from the return statements inside the block. 1388ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl if (isOmittedBlockReturnType(TheDeclarator)) { 1395db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner Result = Context.DependentTy; 1405db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner break; 1415db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner } 1421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 143d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Unspecified typespec defaults to int in C90. However, the C90 grammar 144d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // [C90 6.5] only allows a decl-spec if there was *some* type-specifier, 145d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // type-qualifier, or storage-class-specifier. If not, emit an extwarn. 146d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // Note that the one exception to this is function definitions, which are 147d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // allowed to be completely missing a declspec. This is handled in the 148d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // parser already though by it pretending to have seen an 'int' in this 149d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // case. 1501564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().ImplicitInt) { 15135d276f443462249b436951c1c663820569e1768Chris Lattner // In C89 mode, we only warn if there is a completely missing declspec 15235d276f443462249b436951c1c663820569e1768Chris Lattner // when one is not allowed. 1533f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner if (DS.isEmpty()) { 1541564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::ext_missing_declspec) 1553f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange() 156173144affecc3f97b73b075c44752aff8cfcfc3aChris Lattner << CodeModificationHint::CreateInsertion(DS.getSourceRange().getBegin(), 157173144affecc3f97b73b075c44752aff8cfcfc3aChris Lattner "int"); 1583f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 1594310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor } else if (!DS.hasTypeSpecifier()) { 160d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // C99 and C++ require a type specifier. For example, C99 6.7.2p2 says: 161d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // "At least one type specifier shall be given in the declaration 162d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // specifiers in each declaration, and in the specifier-qualifier list in 163d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner // each struct declaration and type name." 1644310f4ee260e6c7ceeaf299e240f4d789ecc730dDouglas Gregor // FIXME: Does Microsoft really have the implicit int extension in C++? 1651564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().CPlusPlus && 1661564e3906cad604a42bd131e584751a75589a9c4Chris Lattner !TheSema.getLangOptions().Microsoft) { 1671564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::err_missing_type_specifier) 1683f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 1691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 170b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // When this occurs in C++ code, often something is very broken with the 171b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // value being declared, poison it as invalid so we don't get chains of 172b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner // errors. 1735db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 174b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } else { 1751564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::ext_missing_type_specifier) 1763f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 177b78d833b12f7c4baab138f305f72efd49455a3f9Chris Lattner } 178d658b562e80d6ef7a1118e34ff12802c6e2fccedChris Lattner } 1791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FALL THROUGH. 1813cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner case DeclSpec::TST_int: { 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getTypeSpecSign() != DeclSpec::TSS_unsigned) { 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 184fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.IntTy; break; 185fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.ShortTy; break; 186fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.LongTy; break; 187311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 188311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.LongLongTy; 189311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 190311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 191311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner if (!TheSema.getLangOptions().C99 && 192311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner !TheSema.getLangOptions().CPlusPlus0x) 193311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner TheSema.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 194311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DS.getTypeSpecWidth()) { 198fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_unspecified: Result = Context.UnsignedIntTy; break; 199fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_short: Result = Context.UnsignedShortTy; break; 200fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TSW_long: Result = Context.UnsignedLongTy; break; 201311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner case DeclSpec::TSW_longlong: 202311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner Result = Context.UnsignedLongLongTy; 203311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner 204311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner // long long is a C99 feature. 205311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner if (!TheSema.getLangOptions().C99 && 206311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner !TheSema.getLangOptions().CPlusPlus0x) 207311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner TheSema.Diag(DS.getTypeSpecWidthLoc(), diag::ext_longlong); 208311157fa6be96e2769bf317390dc9fb85087d5faChris Lattner break; 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 211958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 2123cbc38bd3569d37f53bd76fa89d24803f48f5036Chris Lattner } 213fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_float: Result = Context.FloatTy; break; 214958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_double: 215958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner if (DS.getTypeSpecWidth() == DeclSpec::TSW_long) 216fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.LongDoubleTy; 217958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner else 218fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.DoubleTy; 219958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 220fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner case DeclSpec::TST_bool: Result = Context.BoolTy; break; // _Bool or bool 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal32: // _Decimal32 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal64: // _Decimal64 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_decimal128: // _Decimal128 2241564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecTypeLoc(), diag::err_decimal_unsupported); 2258f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner Result = Context.IntTy; 2265db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 2278f12f65fad7bfbbdbd4234efe0d484f68c3924b6Chris Lattner break; 22899dc91422144483c20d1c7381bc9ac634b646b04Chris Lattner case DeclSpec::TST_class: 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_enum: 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_union: 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclSpec::TST_struct: { 232c7621a64717203e1f7d5d79dbf548e590b32596cDouglas Gregor TypeDecl *D 233c7621a64717203e1f7d5d79dbf548e590b32596cDouglas Gregor = dyn_cast_or_null<TypeDecl>(static_cast<Decl *>(DS.getTypeRep())); 2346e24726524c2b51b31bb4b622aa678a46b024f42John McCall if (!D) { 2356e24726524c2b51b31bb4b622aa678a46b024f42John McCall // This can happen in C++ with ambiguous lookups. 2366e24726524c2b51b31bb4b622aa678a46b024f42John McCall Result = Context.IntTy; 2375db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 2386e24726524c2b51b31bb4b622aa678a46b024f42John McCall break; 2396e24726524c2b51b31bb4b622aa678a46b024f42John McCall } 2406e24726524c2b51b31bb4b622aa678a46b024f42John McCall 241a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner // If the type is deprecated or unavailable, diagnose it. 24254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall TheSema.DiagnoseUseOfDecl(D, DS.getTypeSpecTypeLoc()); 243a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 245a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner DS.getTypeSpecSign() == 0 && "No qualifiers on tag names!"); 246a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 248a64ef0ab5cb6ac9cfb7d40661a9152c4aa488386Chris Lattner Result = Context.getTypeDeclType(D); 2492191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall 2502191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall // In C++, make an ElaboratedType. 2511564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().CPlusPlus) { 2522191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall TagDecl::TagKind Tag 2532191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall = TagDecl::getTagKindForTypeSpec(DS.getTypeSpecType()); 2542191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall Result = Context.getElaboratedType(Result, Tag); 2552191b20bfb31fc0e22a158f6b4204cd0b7dbd0fdJohn McCall } 2561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2575153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D->isInvalidDecl()) 2585db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 259958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 2601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 2611a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor case DeclSpec::TST_typename: { 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(DS.getTypeSpecWidth() == 0 && DS.getTypeSpecComplex() == 0 && 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getTypeSpecSign() == 0 && 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Can't handle qualifiers on typedef names yet!"); 2651564e3906cad604a42bd131e584751a75589a9c4Chris Lattner Result = TheSema.GetTypeFromParser(DS.getTypeRep()); 2662ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 2671a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) { 268f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis if (const ObjCInterfaceType * 269f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis Interface = Result->getAs<ObjCInterfaceType>()) { 27067ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // It would be nice if protocol qualifiers were only stored with the 27167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // ObjCObjectPointerType. Unfortunately, this isn't possible due 27267ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // to the following typedef idiom (which is uncommon, but allowed): 2731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 27467ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // typedef Foo<P> T; 27567ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // static void func() { 27667ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // Foo<P> *yy; 27767ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // T *zz; 27867ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff // } 279c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff Result = Context.getObjCInterfaceType(Interface->getDecl(), 280c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff (ObjCProtocolDecl**)PQ, 281c15cb2af27514ecc879daba9aa01389c5203685dSteve Naroff DS.getNumProtocolQualifiers()); 282f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis } else if (Result->isObjCIdType()) 283ae4da6150bb837311a2f0f958b01a2989066ba90Chris Lattner // id<protocol-list> 2841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result = Context.getObjCObjectPointerType(Context.ObjCBuiltinIdTy, 28514108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff (ObjCProtocolDecl**)PQ, DS.getNumProtocolQualifiers()); 28614108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff else if (Result->isObjCClassType()) { 2874262a07621043c19292f5fd90b1e426d65cd366cSteve Naroff // Class<protocol-list> 2881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Result = Context.getObjCObjectPointerType(Context.ObjCBuiltinClassTy, 289470301bac9c8abfc6b451b3b669c6695a9fd1518Steve Naroff (ObjCProtocolDecl**)PQ, DS.getNumProtocolQualifiers()); 2903f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } else { 2911564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DeclLoc, diag::err_invalid_protocol_qualifiers) 2923f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner << DS.getSourceRange(); 2935db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 2943f84ad22acc25353a47ee88f55ab05dffef5d9a9Chris Lattner } 295c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 2961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TypeQuals handled by caller. 298958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 300958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner case DeclSpec::TST_typeofType: 301e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 3021564e3906cad604a42bd131e584751a75589a9c4Chris Lattner Result = TheSema.GetTypeFromParser(DS.getTypeRep()); 303958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(!Result.isNull() && "Didn't get a type for typeof?"); 304d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 305fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getTypeOfType(Result); 306958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 307d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff case DeclSpec::TST_typeofExpr: { 308d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff Expr *E = static_cast<Expr *>(DS.getTypeRep()); 309d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff assert(E && "Didn't get an expression for typeof?"); 310d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff // TypeQuals handled by caller. 3114b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = TheSema.BuildTypeofExprType(E); 3124b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (Result.isNull()) { 3134b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Result = Context.IntTy; 3144b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor TheDeclarator.setInvalidType(true); 3154b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 316958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner break; 317d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff } 3186fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson case DeclSpec::TST_decltype: { 3196fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson Expr *E = static_cast<Expr *>(DS.getTypeRep()); 3206fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson assert(E && "Didn't get an expression for decltype?"); 3216fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson // TypeQuals handled by caller. 3221564e3906cad604a42bd131e584751a75589a9c4Chris Lattner Result = TheSema.BuildDecltypeType(E); 323af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (Result.isNull()) { 324af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson Result = Context.IntTy; 3255db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 326af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 3276fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson break; 3286fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson } 329e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson case DeclSpec::TST_auto: { 330e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson // TypeQuals handled by caller. 331e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson Result = Context.UndeducedAutoTy; 332e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson break; 333e89d15944dd3be750a09805ad21222d2fa9321faAnders Carlsson } 3341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 335809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor case DeclSpec::TST_error: 3365153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner Result = Context.IntTy; 3375db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner TheDeclarator.setInvalidType(true); 3385153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner break; 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 341958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner // Handle complex types. 342f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor if (DS.getTypeSpecComplex() == DeclSpec::TSC_complex) { 3431564e3906cad604a42bd131e584751a75589a9c4Chris Lattner if (TheSema.getLangOptions().Freestanding) 3441564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getTypeSpecComplexLoc(), diag::ext_freestanding_complex); 345fab5b45729db4e24ba43bb94d1bce5f73106be78Chris Lattner Result = Context.getComplexType(Result); 346f244cd7e54753caf6edb76df430dea2f43bb82a8Douglas Gregor } 3471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 348958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner assert(DS.getTypeSpecComplex() != DeclSpec::TSC_imaginary && 349958858e04e9f98a42031ba69779e49c21f01ca6cChris Lattner "FIXME: imaginary types not supported yet!"); 3501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35138d8b98803ac354dba15578d65ea99a83dead046Chris Lattner // See if there are any attributes on the declspec that apply to the type (as 35238d8b98803ac354dba15578d65ea99a83dead046Chris Lattner // opposed to the decl). 353fca0ddd42965e0b7ae821213486d4e0dd71fb439Chris Lattner if (const AttributeList *AL = DS.getAttributes()) 3541564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.ProcessTypeAttributeList(Result, AL); 3551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Apply const/volatile/restrict qualifiers to T. 35796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (unsigned TypeQuals = DS.getTypeQualifiers()) { 35896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner 35996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Enforce C99 6.7.3p2: "Types other than pointer types derived from object 36096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // or incomplete types shall not be restrict-qualified." C++ also allows 36196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // restrict-qualified references. 3620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_restrict) { 3632b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isAnyPointerType() || Result->isReferenceType()) { 3642b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian QualType EltTy; 3652b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian if (Result->isObjCObjectPointerType()) 3662b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result; 3672b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian else 3682b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian EltTy = Result->isPointerType() ? 3692b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<PointerType>()->getPointeeType() : 3702b5ff1a1471819192ae805b51b888030ecb52914Fariborz Jahanian Result->getAs<ReferenceType>()->getPointeeType(); 3711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 372bad0e656c3732e3539a9cd6525de721d7e47408bDouglas Gregor // If we have a pointer or reference, the pointee must have an object 373bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner // incomplete type. 374bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner if (!EltTy->isIncompleteOrObjectType()) { 3751564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getRestrictSpecLoc(), 376d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_invalid_pointee) 377d162584991885ab004a02573a73ce06422b921fcChris Lattner << EltTy << DS.getSourceRange(); 3780953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 379bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } 380bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner } else { 3811564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(DS.getRestrictSpecLoc(), 382d3a94e24ddf3fb90de76b17bd176d9ed61e66f2cChris Lattner diag::err_typecheck_invalid_restrict_not_pointer) 383d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 3840953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_restrict; // Remove the restrict qualifier. 38596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 38696b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 3871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 38896b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Warn about CV qualifiers on functions: C99 6.7.3p8: "If the specification 38996b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // of a function type includes any type qualifiers, the behavior is 39096b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // undefined." 39196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner if (Result->isFunctionType() && TypeQuals) { 39296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner // Get some location to point at, either the C or V location. 39396b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner SourceLocation Loc; 3940953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (TypeQuals & DeclSpec::TQ_const) 39596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getConstSpecLoc(); 3960953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else if (TypeQuals & DeclSpec::TQ_volatile) 39796b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner Loc = DS.getVolatileSpecLoc(); 3980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall else { 3990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall assert((TypeQuals & DeclSpec::TQ_restrict) && 4000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall "Has CVR quals but not C, V, or R?"); 4010953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Loc = DS.getRestrictSpecLoc(); 40296b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4031564e3906cad604a42bd131e584751a75589a9c4Chris Lattner TheSema.Diag(Loc, diag::warn_typecheck_function_qualifiers) 404d162584991885ab004a02573a73ce06422b921fcChris Lattner << Result << DS.getSourceRange(); 40596b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 407f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // C++ [dcl.ref]p1: 408f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // Cv-qualified references are ill-formed except when the 409f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 410f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which 411f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor // case the cv-qualifiers are ignored. 4121a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor // FIXME: Shouldn't we be checking SCS_typedef here? 4131a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor if (DS.getTypeSpecType() == DeclSpec::TST_typename && 414f1f9b4e5c7fd087e78f2e387c01098d49d41e784Douglas Gregor TypeQuals && Result->isReferenceType()) { 4150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_const; 4160953e767ff7817f97b3ab20896b229891eeff45bJohn McCall TypeQuals &= ~DeclSpec::TQ_volatile; 4171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(TypeQuals); 4200953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Result = Context.getQualifiedType(Result, Quals); 42196b77fc05ed4a052a9e614f72b0e83572408ce48Chris Lattner } 4220953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 423f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner return Result; 424f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner} 425f1d705c3e2276f7f5b97b8b3394b9b3068fdf25bChris Lattner 426cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregorstatic std::string getPrintableNameForEntity(DeclarationName Entity) { 427cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (Entity) 428cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return Entity.getAsString(); 4291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 430cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return "type name"; 431cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 432cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 433cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a pointer type. 434cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 435cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a pointer. 436cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 437cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the pointer type. 438cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 439cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 440cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// pointer type or, if there is no such entity, the location of the 441cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have pointer type. 442cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 443cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the pointer 444cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 445cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 446cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable pointer type, if there are no 447cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 4481eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildPointerType(QualType T, unsigned Quals, 449cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 450cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 451cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... pointers to references ... 452cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_pointer_to_reference) 453ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 454cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 455cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 456cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 4570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Qs = Qualifiers::fromCVRMask(Quals); 4580953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 459cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Enforce C99 6.7.3p2: "Types other than pointer types derived from 460cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // object or incomplete types shall not be restrict-qualified." 4610953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Qs.hasRestrict() && !T->isIncompleteOrObjectType()) { 462cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_typecheck_invalid_restrict_invalid_pointee) 463cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << T; 4640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qs.removeRestrict(); 465cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 466cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 467cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Build the pointer type. 4680953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Context.getQualifiedType(Context.getPointerType(T), Qs); 469cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 470cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 471cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build a reference type. 472cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 473cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type to which we'll be building a reference. 474cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 4750953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR The cvr-qualifiers to be applied to the reference type. 476cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 477cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 478cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// reference type or, if there is no such entity, the location of the 479cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have reference type. 480cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 481cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the reference 482cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 483cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 484cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable reference type, if there are no 485cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// errors. Otherwise, returns a NULL type. 48654e14c4db764c0636160d26c5bbf491637c83a76John McCallQualType Sema::BuildReferenceType(QualType T, bool SpelledAsLValue, 48754e14c4db764c0636160d26c5bbf491637c83a76John McCall unsigned CVR, SourceLocation Loc, 48854e14c4db764c0636160d26c5bbf491637c83a76John McCall DeclarationName Entity) { 4890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(CVR); 49054e14c4db764c0636160d26c5bbf491637c83a76John McCall 49154e14c4db764c0636160d26c5bbf491637c83a76John McCall bool LValueRef = SpelledAsLValue || T->getAs<LValueReferenceType>(); 49254e14c4db764c0636160d26c5bbf491637c83a76John McCall 49354e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++0x [dcl.typedef]p9: If a typedef TD names a type that is a 49454e14c4db764c0636160d26c5bbf491637c83a76John McCall // reference to a type T, and attempt to create the type "lvalue 49554e14c4db764c0636160d26c5bbf491637c83a76John McCall // reference to cv TD" creates the type "lvalue reference to T". 49654e14c4db764c0636160d26c5bbf491637c83a76John McCall // We use the qualifiers (restrict or none) of the original reference, 49754e14c4db764c0636160d26c5bbf491637c83a76John McCall // not the new ones. This is consistent with GCC. 49854e14c4db764c0636160d26c5bbf491637c83a76John McCall 49954e14c4db764c0636160d26c5bbf491637c83a76John McCall // C++ [dcl.ref]p4: There shall be no references to references. 50054e14c4db764c0636160d26c5bbf491637c83a76John McCall // 50154e14c4db764c0636160d26c5bbf491637c83a76John McCall // According to C++ DR 106, references to references are only 50254e14c4db764c0636160d26c5bbf491637c83a76John McCall // diagnosed when they are written directly (e.g., "int & &"), 50354e14c4db764c0636160d26c5bbf491637c83a76John McCall // but not when they happen via a typedef: 50454e14c4db764c0636160d26c5bbf491637c83a76John McCall // 50554e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef int& intref; 50654e14c4db764c0636160d26c5bbf491637c83a76John McCall // typedef intref& intref2; 50754e14c4db764c0636160d26c5bbf491637c83a76John McCall // 50854e14c4db764c0636160d26c5bbf491637c83a76John McCall // Parser::ParseDeclaratorInternal diagnoses the case where 50954e14c4db764c0636160d26c5bbf491637c83a76John McCall // references are written directly; here, we handle the 51054e14c4db764c0636160d26c5bbf491637c83a76John McCall // collapsing of references-to-references as described in C++ 51154e14c4db764c0636160d26c5bbf491637c83a76John McCall // DR 106 and amended by C++ DR 540. 512cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 513cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 51433a3138a0862cafdd9ff1332b834454a79cd2cdcEli Friedman // A declarator that specifies the type "reference to cv void" 515cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // is ill-formed. 516cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isVoidType()) { 517cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_reference_to_void); 518cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 519cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 520cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 521cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Enforce C99 6.7.3p2: "Types other than pointer types derived from 522cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // object or incomplete types shall not be restrict-qualified." 5230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Quals.hasRestrict() && !T->isIncompleteOrObjectType()) { 524cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_typecheck_invalid_restrict_invalid_pointee) 525cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << T; 5260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeRestrict(); 527cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 528cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 529cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ [dcl.ref]p1: 530cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // [...] Cv-qualified references are ill-formed except when the 531cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // cv-qualifiers are introduced through the use of a typedef 532cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // (7.1.3) or of a template type argument (14.3), in which case 533cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // the cv-qualifiers are ignored. 534cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // 535cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // We diagnose extraneous cv-qualifiers for the non-typedef, 536cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // non-template type argument case within the parser. Here, we just 537cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // ignore any extraneous cv-qualifiers. 5380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeConst(); 5390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeVolatile(); 540cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 541cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Handle restrict on references. 5427c80bd64032e610c0dbd74fc0ef6ea334447f2fdSebastian Redl if (LValueRef) 54354e14c4db764c0636160d26c5bbf491637c83a76John McCall return Context.getQualifiedType( 54454e14c4db764c0636160d26c5bbf491637c83a76John McCall Context.getLValueReferenceType(T, SpelledAsLValue), Quals); 5450953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Context.getQualifiedType(Context.getRValueReferenceType(T), Quals); 546cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 547cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 548cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \brief Build an array type. 549cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 550cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param T The type of each element in the array. 551cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 552cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param ASM C99 array size modifier (e.g., '*', 'static'). 5531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 5541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ArraySize Expression describing the size of the array. 555cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 556cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the array's 557cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// element type. 558cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 559cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Loc The location of the entity whose type involves this 560cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// array type or, if there is no such entity, the location of the 561cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type that will have array type. 562cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 563cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \param Entity The name of the entity that involves the array 564cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// type, if known. 565cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// 566cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// \returns A suitable array type, if there are no errors. Otherwise, 567cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor/// returns a NULL type. 568cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas GregorQualType Sema::BuildArrayType(QualType T, ArrayType::ArraySizeModifier ASM, 569cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Expr *ArraySize, unsigned Quals, 5707e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange Brackets, DeclarationName Entity) { 5710953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 5727e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceLocation Loc = Brackets.getBegin(); 5731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // C99 6.7.5.2p1: If the element type is an incomplete or function type, 574cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // reject it (e.g. void ary[7], struct foo ary[7], void ary[7]()) 575923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // Not in C++, though. There we only dislike void. 576923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (getLangOptions().CPlusPlus) { 577923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (T->isVoidType()) { 578923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(Loc, diag::err_illegal_decl_array_incomplete_type) << T; 579923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 580923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 581923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } else { 582923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (RequireCompleteType(Loc, T, 583923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_illegal_decl_array_incomplete_type)) 584923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 585923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 586cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 587cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isFunctionType()) { 588cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_functions) 589ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 590cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 591cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 5921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 593cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C++ 8.3.2p4: There shall be no ... arrays of references ... 594cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T->isReferenceType()) { 595cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::err_illegal_decl_array_of_references) 596ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << getPrintableNameForEntity(Entity) << T; 597cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 5981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 599cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 600e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson if (Context.getCanonicalType(T) == Context.UndeducedAutoTy) { 6011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, diag::err_illegal_decl_array_of_auto) 602e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson << getPrintableNameForEntity(Entity); 603e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson return QualType(); 604e7cf07d8df83e083505c7105c50b2797493008a6Anders Carlsson } 6051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6066217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *EltTy = T->getAs<RecordType>()) { 607cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // If the element type is a struct or union that contains a variadic 608cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // array, accept it as a GNU extension: C99 6.7.2.1p2. 609cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (EltTy->getDecl()->hasFlexibleArrayMember()) 610cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(Loc, diag::ext_flexible_array_in_array) << T; 611cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else if (T->isObjCInterfaceType()) { 612c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner Diag(Loc, diag::err_objc_array_of_interfaces) << T; 613c7c11b1ba6a110f2416889cc3576fe33277b2a33Chris Lattner return QualType(); 614cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 6151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 616cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: The size expression shall have integer type. 617cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (ArraySize && !ArraySize->isTypeDependent() && 618cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor !ArraySize->getType()->isIntegerType()) { 619cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Diag(ArraySize->getLocStart(), diag::err_array_size_non_int) 620cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor << ArraySize->getType() << ArraySize->getSourceRange(); 621cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor ArraySize->Destroy(Context); 622cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return QualType(); 623cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 624cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor llvm::APSInt ConstVal(32); 625cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (!ArraySize) { 626f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star) 6277e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, 0, ASM, Quals, Brackets); 628f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman else 629f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman T = Context.getIncompleteArrayType(T, ASM, Quals); 630cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else if (ArraySize->isValueDependent()) { 6317e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getDependentSizedArrayType(T, ArraySize, ASM, Quals, Brackets); 632cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else if (!ArraySize->isIntegerConstantExpr(ConstVal, Context) || 633923d56d436f750bc1f29db50e641078725558a1bSebastian Redl (!T->isDependentType() && !T->isIncompleteType() && 634923d56d436f750bc1f29db50e641078725558a1bSebastian Redl !T->isConstantSizeType())) { 635cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // Per C99, a variable array is an array with either a non-constant 636cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // size or an element type that has a non-constant-size 6377e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor T = Context.getVariableArrayType(T, ArraySize, ASM, Quals, Brackets); 638cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } else { 639cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // C99 6.7.5.2p1: If the expression is a constant expression, it shall 640cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // have a value greater than zero. 641923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal.isSigned() && ConstVal.isNegative()) { 642923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(ArraySize->getLocStart(), 643923d56d436f750bc1f29db50e641078725558a1bSebastian Redl diag::err_typecheck_negative_array_size) 644923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 645923d56d436f750bc1f29db50e641078725558a1bSebastian Redl return QualType(); 646923d56d436f750bc1f29db50e641078725558a1bSebastian Redl } 647923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (ConstVal == 0) { 648923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // GCC accepts zero sized static arrays. 649923d56d436f750bc1f29db50e641078725558a1bSebastian Redl Diag(ArraySize->getLocStart(), diag::ext_typecheck_zero_array_size) 650923d56d436f750bc1f29db50e641078725558a1bSebastian Redl << ArraySize->getSourceRange(); 6511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 65246a617a792bfab0d9b1e057371ea3b9540802226John McCall T = Context.getConstantArrayType(T, ConstVal, ASM, Quals); 653cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 654af40776922bc5c28e740adb0342faa09f35b0068David Chisnall // If this is not C99, extwarn about VLA's and C99 array size modifiers. 655af40776922bc5c28e740adb0342faa09f35b0068David Chisnall if (!getLangOptions().C99) { 6561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ArraySize && !ArraySize->isTypeDependent() && 6571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump !ArraySize->isValueDependent() && 658cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor !ArraySize->isIntegerConstantExpr(Context)) 659043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor Diag(Loc, getLangOptions().CPlusPlus? diag::err_vla_cxx : diag::ext_vla); 660cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor else if (ASM != ArrayType::Normal || Quals != 0) 661043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor Diag(Loc, 662043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor getLangOptions().CPlusPlus? diag::err_c99_array_usage_cxx 663043cad21b78c6b02597cdc7b6ead32388e27ebc7Douglas Gregor : diag::ext_c99_array_usage); 664cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 665cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 666cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor return T; 667cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor} 6689cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 6699cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// \brief Build an ext-vector type. 6709cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// 6719cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor/// Run the required checks for the extended vector type. 6721eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildExtVectorType(QualType T, ExprArg ArraySize, 6739cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor SourceLocation AttrLoc) { 6749cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 6759cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *Arg = (Expr *)ArraySize.get(); 6769cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 6779cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // unlike gcc's vector_size attribute, we do not allow vectors to be defined 6789cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // in conjunction with complex types (pointers, arrays, functions, etc.). 6791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!T->isDependentType() && 6809cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor !T->isIntegerType() && !T->isRealFloatingType()) { 6819cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_invalid_vector_type) << T; 6829cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 6839cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 6849cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 6859cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!Arg->isTypeDependent() && !Arg->isValueDependent()) { 6869cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor llvm::APSInt vecSize(32); 6879cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!Arg->isIntegerConstantExpr(vecSize, Context)) { 6889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_argument_not_int) 6899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor << "ext_vector_type" << Arg->getSourceRange(); 6909cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 6919cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 6921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unlike gcc's vector_size attribute, the size is specified as the 6949cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // number of elements, not the number of bytes. 6951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 6961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6979cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (vectorSize == 0) { 6989cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Diag(AttrLoc, diag::err_attribute_zero_size) 6999cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor << Arg->getSourceRange(); 7009cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return QualType(); 7019cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 7021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7039cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T->isDependentType()) 7049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return Context.getExtVectorType(T, vectorSize); 7051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 7061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Context.getDependentSizedExtVectorType(T, ArraySize.takeAs<Expr>(), 7089cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor AttrLoc); 7099cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor} 7101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 711724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \brief Build a function type. 712724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 713724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// This routine checks the function type according to C++ rules and 714724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// under the assumption that the result type and parameter types have 715724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// just been instantiated from a template. It therefore duplicates 7162943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor/// some of the behavior of GetTypeForDeclarator, but in a much 717724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// simpler form that is only suitable for this narrow use case. 718724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 719724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param T The return type of the function. 720724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 721724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param ParamTypes The parameter types of the function. This array 722724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// will be modified to account for adjustments to the types of the 723724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function parameters. 724724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 725724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param NumParamTypes The number of parameter types in ParamTypes. 726724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 727724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Variadic Whether this is a variadic function type. 728724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 729724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Quals The cvr-qualifiers to be applied to the function type. 730724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 731724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Loc The location of the entity whose type involves this 732724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// function type or, if there is no such entity, the location of the 733724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type that will have function type. 734724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 735724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \param Entity The name of the entity that involves the function 736724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// type, if known. 737724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// 738724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// \returns A suitable function type, if there are no 739724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor/// errors. Otherwise, returns a NULL type. 740724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas GregorQualType Sema::BuildFunctionType(QualType T, 7411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType *ParamTypes, 742724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor unsigned NumParamTypes, 743724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Variadic, unsigned Quals, 744724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor SourceLocation Loc, DeclarationName Entity) { 745724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (T->isArrayType() || T->isFunctionType()) { 74658408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(Loc, diag::err_func_returning_array_function) 74758408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 748724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 749724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 7501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 751724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor bool Invalid = false; 752724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor for (unsigned Idx = 0; Idx < NumParamTypes; ++Idx) { 7532dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor QualType ParamType = adjustParameterType(ParamTypes[Idx]); 7542dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ParamType->isVoidType()) { 755724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Diag(Loc, diag::err_param_with_void_type); 756724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Invalid = true; 757724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 758cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 75954e14c4db764c0636160d26c5bbf491637c83a76John McCall ParamTypes[Idx] = ParamType; 760724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor } 761724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 762724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor if (Invalid) 763724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor return QualType(); 764724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor 7651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Context.getFunctionType(T, ParamTypes, NumParamTypes, Variadic, 766724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor Quals); 767724651c3523e25fbf2f6cd0419bc3466e0afdb07Douglas Gregor} 7681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 769949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \brief Build a member pointer type \c T Class::*. 770949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 771949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param T the type to which the member pointer refers. 772949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Class the class type into which the member pointer points. 7730953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR Qualifiers applied to the member pointer type 774949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Loc the location where this type begins 775949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \param Entity the name of the entity that will have this member pointer type 776949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// 777949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// \returns a member pointer type, if successful, or a NULL type if there was 778949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor/// an error. 7791eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpQualType Sema::BuildMemberPointerType(QualType T, QualType Class, 7800953e767ff7817f97b3ab20896b229891eeff45bJohn McCall unsigned CVR, SourceLocation Loc, 781949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclarationName Entity) { 7820953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(CVR); 7830953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 784949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Verify that we're not building a pointer to pointer to function with 785949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specification. 786949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (CheckDistantExceptionSpec(T)) { 787949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_distant_exception_spec); 788949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 789949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 790949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 791949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 792949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Build the type anyway, but use the canonical type so that the 793949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // exception specifiers are stripped off. 794949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = Context.getCanonicalType(T); 795949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 796949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 797949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // C++ 8.3.3p3: A pointer to member shall not pointer to ... a member 798949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // with reference type, or "cv void." 799949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isReferenceType()) { 8008d4655d3b966da02fe0588767160448594cddd61Anders Carlsson Diag(Loc, diag::err_illegal_decl_mempointer_to_reference) 801ac406052f7b980f8caa6b07b4a8d0867d53852c4John McCall << (Entity? Entity.getAsString() : "type name") << T; 802949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 803949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 804949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 805949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T->isVoidType()) { 806949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_illegal_decl_mempointer_to_void) 807949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (Entity? Entity.getAsString() : "type name"); 808949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 809949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 810949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 811949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // Enforce C99 6.7.3p2: "Types other than pointer types derived from 812949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // object or incomplete types shall not be restrict-qualified." 8130953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Quals.hasRestrict() && !T->isIncompleteOrObjectType()) { 814949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_typecheck_invalid_restrict_invalid_pointee) 815949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << T; 816949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 817949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // FIXME: If we're doing this as part of template instantiation, 818949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor // we should return immediately. 8190953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.removeRestrict(); 820949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 821949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 822949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!Class->isDependentType() && !Class->isRecordType()) { 823949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(Loc, diag::err_mempointer_in_nonclass_type) << Class; 824949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor return QualType(); 825949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor } 826949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor 8270953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Context.getQualifiedType( 8280953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Context.getMemberPointerType(T, Class.getTypePtr()), Quals); 829949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor} 8301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8319a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \brief Build a block pointer type. 8329a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8339a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param T The type to which we'll be building a block pointer. 8349a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall/// \param CVR The cvr-qualifiers to be applied to the block pointer type. 8369a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8379a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Loc The location of the entity whose type involves this 8389a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// block pointer type or, if there is no such entity, the location of the 8399a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type that will have block pointer type. 8409a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8419a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \param Entity The name of the entity that involves the block pointer 8429a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// type, if known. 8439a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// 8449a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// \returns A suitable block pointer type, if there are no 8459a917e4fac79aba20fbd25983c78396475078918Anders Carlsson/// errors. Otherwise, returns a NULL type. 8460953e767ff7817f97b3ab20896b229891eeff45bJohn McCallQualType Sema::BuildBlockPointerType(QualType T, unsigned CVR, 8471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation Loc, 8489a917e4fac79aba20fbd25983c78396475078918Anders Carlsson DeclarationName Entity) { 8490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (!T->isFunctionType()) { 8509a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Diag(Loc, diag::err_nonfunction_block_type); 8519a917e4fac79aba20fbd25983c78396475078918Anders Carlsson return QualType(); 8529a917e4fac79aba20fbd25983c78396475078918Anders Carlsson } 8531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals = Qualifiers::fromCVRMask(CVR); 8550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Context.getQualifiedType(Context.getBlockPointerType(T), Quals); 8569a917e4fac79aba20fbd25983c78396475078918Anders Carlsson} 8579a917e4fac79aba20fbd25983c78396475078918Anders Carlsson 858a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallQualType Sema::GetTypeFromParser(TypeTy *Ty, TypeSourceInfo **TInfo) { 859e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QualType QT = QualType::getFromOpaquePtr(Ty); 8603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (QT.isNull()) { 861a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = 0; 8623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return QualType(); 8633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 8643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 865a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *DI = 0; 866e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis if (LocInfoType *LIT = dyn_cast<LocInfoType>(QT)) { 867e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QT = LIT->getType(); 868a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall DI = LIT->getTypeSourceInfo(); 869e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis } 8701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 871a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) *TInfo = DI; 872e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis return QT; 873e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis} 874e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 87598eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump/// GetTypeForDeclarator - Convert the type for the specified 8768ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl/// declarator to Type instances. 877402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// 878402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// If OwnedDecl is non-NULL, and this declarator's decl-specifier-seq 879402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// owns the declaration of a type (e.g., the definition of a struct 880402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor/// type), then *OwnedDecl will receive the owned declaration. 881a1d5662d96465f0fddf8819d245da4d19b892effArgyrios KyrtzidisQualType Sema::GetTypeForDeclarator(Declarator &D, Scope *S, 882a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo **TInfo, 883402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor TagDecl **OwnedDecl) { 884930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Determine the type of the declarator. Not all forms of declarator 885930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // have a type. 886930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor QualType T; 887f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 8883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (D.getName().getKind()) { 8893f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 8903f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 8910486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 8923f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_TemplateId: 8938ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl T = ConvertDeclSpecToType(D, *this); 8945db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner 8955db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner if (!D.isInvalidType() && OwnedDecl && D.getDeclSpec().isTypeSpecOwned()) 8965db2bb1cb0c040dcbca1b5000f091d6d225b4bfeChris Lattner *OwnedDecl = cast<TagDecl>((Decl *)D.getDeclSpec().getTypeRep()); 897930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 898930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor 8993f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_ConstructorName: 9000efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor case UnqualifiedId::IK_ConstructorTemplateId: 9013f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_DestructorName: 902930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor // Constructors and destructors don't have return types. Use 90348026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // "void" instead. 904930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor T = Context.VoidTy; 905930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor break; 90648026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor 90748026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor case UnqualifiedId::IK_ConversionFunctionId: 90848026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // The result type of a conversion function is the type that it 90948026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor // converts to. 91048026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor T = GetTypeFromParser(D.getName().ConversionFunctionId); 91148026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor break; 912930d8b5ecc074cca01ecd9a522a55f55f3b72396Douglas Gregor } 913f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 9141f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor if (T.isNull()) 9151f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor return T; 9161f5f3a4d58a1c7c50c331b33329fc14563533c04Douglas Gregor 917baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (T == Context.UndeducedAutoTy) { 918baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson int Error = -1; 9191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 920baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (D.getContext()) { 921baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::KNRTypeListContext: 922baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson assert(0 && "K&R type lists aren't allowed in C++"); 923baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 924baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::PrototypeContext: 925baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 0; // Function prototype 926baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 927baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::MemberContext: 928baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson switch (cast<TagDecl>(CurContext)->getTagKind()) { 929baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case TagDecl::TK_enum: assert(0 && "unhandled tag kind"); break; 930baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case TagDecl::TK_struct: Error = 1; /* Struct member */ break; 931baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case TagDecl::TK_union: Error = 2; /* Union member */ break; 932baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case TagDecl::TK_class: Error = 3; /* Class member */ break; 9331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 934baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 935baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::CXXCatchContext: 936baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 4; // Exception declaration 937baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 938baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TemplateParamContext: 939baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 5; // Template parameter 940baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 941baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockLiteralContext: 942baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Error = 6; // Block literal 943baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 944baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::FileContext: 945baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::BlockContext: 946baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ForContext: 947baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::ConditionContext: 948baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson case Declarator::TypeNameContext: 949baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson break; 950baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 951baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson 952baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson if (Error != -1) { 953baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson Diag(D.getDeclSpec().getTypeSpecTypeLoc(), diag::err_auto_not_allowed) 954baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson << Error; 955baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson T = Context.IntTy; 956baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson D.setInvalidType(true); 957baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 958baf45d31f18e6d5b3d2a33695c2af6e6cbc4ee29Anders Carlsson } 9591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 960cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor // The name we're declaring, if any. 961cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclarationName Name; 962cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (D.getIdentifier()) 963cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor Name = D.getIdentifier(); 9641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 96598eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // Walk the DeclTypeInfo, building the recursive type as we go. 96698eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // DeclTypeInfos are ordered from the identifier out, which is 96798eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump // opposite of what we want :). 9688ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 9698ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl DeclaratorChunk &DeclType = D.getTypeObject(e-i-1); 9705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (DeclType.Kind) { 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown decltype!"); 9725618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff case DeclaratorChunk::BlockPointer: 9739af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner // If blocks are disabled, emit an error. 9749af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner if (!LangOpts.Blocks) 9759af5500f3f132f9a2f9abbe82113a7c7bb751472Chris Lattner Diag(DeclType.Loc, diag::err_blocks_disable); 9761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T = BuildBlockPointerType(T, DeclType.Cls.TypeQuals, D.getIdentifierLoc(), 9789a917e4fac79aba20fbd25983c78396475078918Anders Carlsson Name); 9795618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff break; 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Pointer: 9816a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a pointer to pointer to function with 9826a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 9836a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 9846a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 9856a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 9866a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 9876a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 98814108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff if (getLangOptions().ObjC1 && T->isObjCInterfaceType()) { 989183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>(); 99014108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff T = Context.getObjCObjectPointerType(T, 99167ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff (ObjCProtocolDecl **)OIT->qual_begin(), 99267ef8eaea8a0a2073147a8d863f0e3f30d525802Steve Naroff OIT->getNumProtocols()); 99314108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff break; 99414108da7f7fc059772711e4ffee1322a27b152a7Steve Naroff } 995cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = BuildPointerType(T, DeclType.Ptr.TypeQuals, DeclType.Loc, Name); 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 9970953e767ff7817f97b3ab20896b229891eeff45bJohn McCall case DeclaratorChunk::Reference: { 9980953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers Quals; 9990953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (DeclType.Ref.HasRestrict) Quals.addRestrict(); 10000953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 10016a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building a reference to pointer to function with 10026a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 10036a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 10046a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 10056a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 10066a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 10076a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 10080953e767ff7817f97b3ab20896b229891eeff45bJohn McCall T = BuildReferenceType(T, DeclType.Ref.LValueRef, Quals, 1009cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor DeclType.Loc, Name); 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10110953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 10125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case DeclaratorChunk::Array: { 10136a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Verify that we're not building an array of pointers to function with 10146a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // exception specification. 10156a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 10166a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 10176a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl D.setInvalidType(true); 10186a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl // Build the type anyway. 10196a7330c20cabf1cf1cd46f5dfc183ec3a72add66Sebastian Redl } 1020fd89bc825026e44c68a68db72d4012fd6752e70fChris Lattner DeclaratorChunk::ArrayTypeInfo &ATI = DeclType.Arr; 102194f81fd0b0f81a99d215b225c8c5616295b063f6Chris Lattner Expr *ArraySize = static_cast<Expr*>(ATI.NumElts); 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ArrayType::ArraySizeModifier ASM; 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ATI.isStar) 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Star; 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ATI.hasStatic) 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Static; 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASM = ArrayType::Normal; 1029f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman if (ASM == ArrayType::Star && 1030f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.getContext() != Declarator::PrototypeContext) { 1031f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // FIXME: This check isn't quite right: it allows star in prototypes 1032f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // for function definitions, and disallows some edge cases detailed 1033f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman // in http://gcc.gnu.org/ml/gcc-patches/2009-02/msg00133.html 1034f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman Diag(DeclType.Loc, diag::err_array_star_outside_prototype); 1035f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman ASM = ArrayType::Normal; 1036f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman D.setInvalidType(true); 1037f91f5c8a66ffd812f61819836529f8ad437f7e2bEli Friedman } 10380953e767ff7817f97b3ab20896b229891eeff45bJohn McCall T = BuildArrayType(T, ASM, ArraySize, 10390953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::fromCVRMask(ATI.TypeQuals), 10407e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor SourceRange(DeclType.Loc, DeclType.EndLoc), Name); 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1043f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::Function: { 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the function declarator has a prototype (i.e. it is not () and 10455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // does not have a K&R-style identifier list), then the arguments are part 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // of the type, otherwise the argument list is (). 10475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const DeclaratorChunk::FunctionTypeInfo &FTI = DeclType.Fun; 10483cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 1049cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner // C99 6.7.5.3p1: The return type may not be a function or array type. 105058408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor // For conversion functions, we'll diagnose this particular error later. 105148026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor if ((T->isArrayType() || T->isFunctionType()) && 105248026d26fb58e413544874eead5491b1452e2ebfDouglas Gregor (D.getName().getKind() != UnqualifiedId::IK_ConversionFunctionId)) { 105358408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor Diag(DeclType.Loc, diag::err_func_returning_array_function) 105458408bc4ead86b08af56cd06fc966fd858b48b2dDouglas Gregor << T->isFunctionType() << T; 1055cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner T = Context.IntTy; 1056cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner D.setInvalidType(true); 1057cd8812948bc8a65dcf10c541c1775e5ba44def6cChris Lattner } 1058465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1059402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus && D.getDeclSpec().isTypeSpecOwned()) { 1060402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++ [dcl.fct]p6: 1061402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Types shall not be defined in return or parameter types. 1062402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor TagDecl *Tag = cast<TagDecl>((Decl *)D.getDeclSpec().getTypeRep()); 1063402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (Tag->isDefinition()) 1064402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(Tag->getLocation(), diag::err_type_defined_in_result_type) 1065402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(Tag); 1066402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 1067402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 10683cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // Exception specs are not allowed in typedefs. Complain, but add it 10693cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl // anyway. 10703cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl if (FTI.hasExceptionSpec && 10713cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_typedef) 10723cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl Diag(FTI.getThrowLoc(), diag::err_exception_spec_in_typedef); 10733cc9726a493d90bd8faf094986a59352fd3461cbSebastian Redl 1074eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (FTI.NumArgs == 0) { 1075c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis if (getLangOptions().CPlusPlus) { 1076c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis // C++ 8.3.5p2: If the parameter-declaration-clause is empty, the 1077c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis // function takes no arguments. 1078465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl llvm::SmallVector<QualType, 4> Exceptions; 1079465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl Exceptions.reserve(FTI.NumExceptions); 10801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (unsigned ei = 0, ee = FTI.NumExceptions; ei != ee; ++ei) { 1081e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 1082e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QualType ET = GetTypeFromParser(FTI.Exceptions[ei].Ty); 1083ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // Check that the type is valid for an exception spec, and drop it 1084ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // if not. 1085ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl if (!CheckSpecifiedExceptionType(ET, FTI.Exceptions[ei].Range)) 1086ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl Exceptions.push_back(ET); 1087ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 1088465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl T = Context.getFunctionType(T, NULL, 0, FTI.isVariadic, FTI.TypeQuals, 1089465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasExceptionSpec, 1090465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasAnyExceptionSpec, 1091ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl Exceptions.size(), Exceptions.data()); 1092965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } else if (FTI.isVariadic) { 1093965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor // We allow a zero-parameter variadic function in C if the 1094965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor // function is marked with the "overloadable" 1095965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor // attribute. Scan for this attribute now. 1096965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor bool Overloadable = false; 1097965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor for (const AttributeList *Attrs = D.getAttributes(); 1098965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Attrs; Attrs = Attrs->getNext()) { 1099965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (Attrs->getKind() == AttributeList::AT_overloadable) { 1100965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Overloadable = true; 1101965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor break; 1102965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1103965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor } 1104965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor 1105965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor if (!Overloadable) 1106965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor Diag(FTI.getEllipsisLoc(), diag::err_ellipsis_first_arg); 1107965acbb321e94e36aa5365126eee46b97745fdbbDouglas Gregor T = Context.getFunctionType(T, NULL, 0, FTI.isVariadic, 0); 1108c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } else { 1109c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis // Simple void foo(), where the incoming T is the result type. 111072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor T = Context.getFunctionNoProtoType(T); 1111c6f7345e44e079f373d6bdecaa06c7e06574dc27Argyrios Kyrtzidis } 1112eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (FTI.ArgInfo[0].Param == 0) { 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.5.3p3: Reject int(x,y,z) when it's not a function definition. 11141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(FTI.ArgInfo[0].IdentLoc, diag::err_ident_list_in_fn_declaration); 111554e14c4db764c0636160d26c5bbf491637c83a76John McCall D.setInvalidType(true); 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 11175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Otherwise, we have a function with an argument list that is 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // potentially variadic. 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> ArgTys; 11201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = FTI.NumArgs; i != e; ++i) { 1122b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner ParmVarDecl *Param = 1123b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner cast<ParmVarDecl>(FTI.ArgInfo[i].Param.getAs<Decl>()); 11248123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner QualType ArgTy = Param->getType(); 112578c75fb3d275079c5fab30eeb33077958f2b0265Chris Lattner assert(!ArgTy.isNull() && "Couldn't parse type?"); 11262dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 11272dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor // Adjust the parameter type. 1128beb58cb83bd53b79b80fc6f9952efd985934cbfcDouglas Gregor assert((ArgTy == adjustParameterType(ArgTy)) && "Unadjusted type?"); 11292dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Look for 'void'. void is allowed only as a single argument to a 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // function with no other parameters (C99 6.7.5.3p10). We record 113272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor // int(void) as a FunctionProtoType with an empty argument list. 11332dc0e64e57b2a1786fa53a7dbd1d5c8e255eadb0Douglas Gregor if (ArgTy->isVoidType()) { 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this is something like 'float(int, void)', reject it. 'void' 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // is an incomplete type (C99 6.2.5p19) and function decls cannot 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // have arguments of incomplete type. 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.NumArgs != 1 || FTI.isVariadic) { 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DeclType.Loc, diag::err_void_only_param); 11392ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 11408123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 11412ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else if (FTI.ArgInfo[i].Ident) { 11422ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'int(void abc)'. 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(FTI.ArgInfo[i].IdentLoc, 11444565d4e83cec55356fe9c75929579eacced9da36Chris Lattner diag::err_param_with_void_type); 11452ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner ArgTy = Context.IntTy; 11468123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner Param->setType(ArgTy); 11472ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } else { 11482ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Reject, but continue to parse 'float(const void)'. 11490953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (ArgTy.hasQualifiers()) 11502ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner Diag(DeclType.Loc, diag::err_void_param_qualified); 11511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11522ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner // Do not add 'void' to the ArgTys list. 11532ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner break; 11542ff5426cd83ae02378efacdfeb70d6785eb09a30Chris Lattner } 1155eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } else if (!FTI.hasPrototype) { 1156eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (ArgTy->isPromotableIntegerType()) { 1157a95d75769edae299816ec7fd9bbcdf1ef617c5c9Eli Friedman ArgTy = Context.getPromotedIntegerType(ArgTy); 1158183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall } else if (const BuiltinType* BTy = ArgTy->getAs<BuiltinType>()) { 1159eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman if (BTy->getKind() == BuiltinType::Float) 1160eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman ArgTy = Context.DoubleTy; 1161eb4b7051a596560ef4a1846e3714707f44e9dc30Eli Friedman } 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 116454e14c4db764c0636160d26c5bbf491637c83a76John McCall ArgTys.push_back(ArgTy); 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1166465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1167465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl llvm::SmallVector<QualType, 4> Exceptions; 1168465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl Exceptions.reserve(FTI.NumExceptions); 11691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (unsigned ei = 0, ee = FTI.NumExceptions; ei != ee; ++ei) { 1170e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis // FIXME: Preserve type source info. 1171e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis QualType ET = GetTypeFromParser(FTI.Exceptions[ei].Ty); 1172ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // Check that the type is valid for an exception spec, and drop it if 1173ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl // not. 1174ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl if (!CheckSpecifiedExceptionType(ET, FTI.Exceptions[ei].Range)) 1175ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl Exceptions.push_back(ET); 1176ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl } 1177465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl 1178beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad T = Context.getFunctionType(T, ArgTys.data(), ArgTys.size(), 1179465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.isVariadic, FTI.TypeQuals, 1180465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasExceptionSpec, 1181465226e23a3008bd68973513dda1f9e3cd27dbddSebastian Redl FTI.hasAnyExceptionSpec, 1182ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl Exceptions.size(), Exceptions.data()); 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1186f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case DeclaratorChunk::MemberPointer: 11874994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl // Verify that we're not building a pointer to pointer to function with 11884994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl // exception specification. 11894994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl if (getLangOptions().CPlusPlus && CheckDistantExceptionSpec(T)) { 11904994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl Diag(D.getIdentifierLoc(), diag::err_distant_exception_spec); 11914994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl D.setInvalidType(true); 11924994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl // Build the type anyway. 11934994d2d50ceacdc8908f750c55589c0a20942a0aSebastian Redl } 1194f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // The scope spec must refer to a class, or be dependent. 1195f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType ClsType; 119687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (isDependentScopeSpecifier(DeclType.Mem.Scope()) 119787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor || dyn_cast_or_null<CXXRecordDecl>( 119887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor computeDeclContext(DeclType.Mem.Scope()))) { 11991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *NNS 1200949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor = (NestedNameSpecifier *)DeclType.Mem.Scope().getScopeRep(); 120187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor NestedNameSpecifier *NNSPrefix = NNS->getPrefix(); 120287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor switch (NNS->getKind()) { 120387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Identifier: 120487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = Context.getTypenameType(NNSPrefix, NNS->getAsIdentifier()); 120587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 120687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 120787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Namespace: 120887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::Global: 12099f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("Nested-name-specifier must name a type"); 121087c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 121187c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor 121287c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpec: 121387c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor case NestedNameSpecifier::TypeSpecWithTemplate: 121487c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = QualType(NNS->getAsType(), 0); 121587c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor if (NNSPrefix) 121687c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor ClsType = Context.getQualifiedNameType(NNSPrefix, ClsType); 121787c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor break; 121887c12c4a4667279dacb3d4a93c64b49148a0ff79Douglas Gregor } 1219f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } else { 1220949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor Diag(DeclType.Mem.Scope().getBeginLoc(), 1221949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor diag::err_illegal_decl_mempointer_in_nonclass) 1222949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << (D.getIdentifier() ? D.getIdentifier()->getName() : "type name") 1223949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor << DeclType.Mem.Scope().getRange(); 1224f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl D.setInvalidType(true); 1225f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1226f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1227949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (!ClsType.isNull()) 1228949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor T = BuildMemberPointerType(T, ClsType, DeclType.Mem.TypeQuals, 1229949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor DeclType.Loc, D.getIdentifier()); 1230949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor if (T.isNull()) { 1231f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl T = Context.IntTy; 1232949bf69136e07fb7968d84bc21d9272ff343ffdbDouglas Gregor D.setInvalidType(true); 1233f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1234f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl break; 1235f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 1236f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 1237cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor if (T.isNull()) { 1238cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor D.setInvalidType(true); 1239cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor T = Context.IntTy; 1240cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor } 1241cd281c3ded486ced5aad29dd7c3fa22b7514c3d8Douglas Gregor 1242c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // See if there are any attributes on this declarator chunk. 1243c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner if (const AttributeList *AL = DeclType.getAttrs()) 1244c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner ProcessTypeAttributeList(T, AL); 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1246971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1247971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (getLangOptions().CPlusPlus && T->isFunctionType()) { 1248183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionProtoType *FnTy = T->getAs<FunctionProtoType>(); 1249778ed741de8ada0049b89608af0abdb5ae6e106eChris Lattner assert(FnTy && "Why oh why is there not a FunctionProtoType here?"); 1250971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1251971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // C++ 8.3.5p4: A cv-qualifier-seq shall only be part of the function type 1252971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // for a nonstatic member function, the function type to which a pointer 1253971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // to member refers, or the top-level function type of a function typedef 1254971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // declaration. 1255971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (FnTy->getTypeQuals() != 0 && 1256971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() != DeclSpec::SCS_typedef && 1257584049d49d956add7bce5669e9823491f7d8de78Douglas Gregor ((D.getContext() != Declarator::MemberContext && 1258584049d49d956add7bce5669e9823491f7d8de78Douglas Gregor (!D.getCXXScopeSpec().isSet() || 1259f59a56e180bf54528d7d1d5afa68fcc13300965aDouglas Gregor !computeDeclContext(D.getCXXScopeSpec(), /*FIXME:*/true) 1260f59a56e180bf54528d7d1d5afa68fcc13300965aDouglas Gregor ->isRecord())) || 1261971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis D.getDeclSpec().getStorageClassSpec() == DeclSpec::SCS_static)) { 1262971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis if (D.isFunctionDeclarator()) 1263971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis Diag(D.getIdentifierLoc(), diag::err_invalid_qualified_function_type); 1264971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis else 1265971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis Diag(D.getIdentifierLoc(), 1266971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis diag::err_invalid_qualified_typedef_function_type_use); 1267971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis 1268971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis // Strip the cv-quals from the type. 1269971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis T = Context.getFunctionType(FnTy->getResultType(), FnTy->arg_type_begin(), 12707fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis FnTy->getNumArgs(), FnTy->isVariadic(), 0); 1271971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 1272971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis } 12731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12740bf29ad534c381087e89efadbf7aff0579bf259fChris Lattner // If there were any type attributes applied to the decl itself (not the 12750bf29ad534c381087e89efadbf7aff0579bf259fChris Lattner // type, apply the type attribute to the type!) 12760bf29ad534c381087e89efadbf7aff0579bf259fChris Lattner if (const AttributeList *Attrs = D.getAttributes()) 1277c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner ProcessTypeAttributeList(T, Attrs); 12784adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 1279a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) { 128054e14c4db764c0636160d26c5bbf491637c83a76John McCall if (D.isInvalidType()) 1281a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall *TInfo = 0; 128254e14c4db764c0636160d26c5bbf491637c83a76John McCall else 1283a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall *TInfo = GetTypeSourceInfoForDeclarator(D, T); 128454e14c4db764c0636160d26c5bbf491637c83a76John McCall } 12854adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T; 12875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 128951bd803fbdade51d674598ed45da3d54190a656cJohn McCallnamespace { 129051bd803fbdade51d674598ed45da3d54190a656cJohn McCall class TypeSpecLocFiller : public TypeLocVisitor<TypeSpecLocFiller> { 129151bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclSpec &DS; 1292f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 129351bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 129451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TypeSpecLocFiller(const DeclSpec &DS) : DS(DS) {} 1295f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 129651bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 129751bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getUnqualifiedLoc()); 129851bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 129951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypedefTypeLoc(TypedefTypeLoc TL) { 130051bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 130151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 130251bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 130351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setNameLoc(DS.getTypeSpecTypeLoc()); 130454e14c4db764c0636160d26c5bbf491637c83a76John McCall 130554e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 130654e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 130754e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 130854e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 130954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 131054e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 131154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 131254e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 131354e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 131454e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 131554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 131654e14c4db764c0636160d26c5bbf491637c83a76John McCall } 131751bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 131854e14c4db764c0636160d26c5bbf491637c83a76John McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 131951bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 132051bd803fbdade51d674598ed45da3d54190a656cJohn McCall 132154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setStarLoc(SourceLocation()); 132254e14c4db764c0636160d26c5bbf491637c83a76John McCall 132354e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getProtocolQualifiers()) { 132454e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() > 0); 132554e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == DS.getNumProtocolQualifiers()); 132654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasProtocolsAsWritten(true); 132754e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(DS.getProtocolLAngleLoc()); 132854e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(DS.getSourceRange().getEnd()); 132954e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = DS.getNumProtocolQualifiers(); i != e; ++i) 133054e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setProtocolLoc(i, DS.getProtocolLocs()[i]); 133154e14c4db764c0636160d26c5bbf491637c83a76John McCall 133254e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 133354e14c4db764c0636160d26c5bbf491637c83a76John McCall assert(TL.getNumProtocols() == 0); 133454e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasProtocolsAsWritten(false); 133554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 133654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 133754e14c4db764c0636160d26c5bbf491637c83a76John McCall } 133854e14c4db764c0636160d26c5bbf491637c83a76John McCall 133954e14c4db764c0636160d26c5bbf491637c83a76John McCall // This might not have been written with an inner type. 134054e14c4db764c0636160d26c5bbf491637c83a76John McCall if (DS.getTypeSpecType() == DeclSpec::TST_unspecified) { 134154e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasBaseTypeAsWritten(false); 134254e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.getBaseTypeLoc().initialize(SourceLocation()); 134354e14c4db764c0636160d26c5bbf491637c83a76John McCall } else { 134454e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasBaseTypeAsWritten(true); 134551bd803fbdade51d674598ed45da3d54190a656cJohn McCall Visit(TL.getBaseTypeLoc()); 134654e14c4db764c0636160d26c5bbf491637c83a76John McCall } 134751bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 1348833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall void VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL) { 1349a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 1350a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Sema::GetTypeFromParser(DS.getTypeRep(), &TInfo); 1351833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1352833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // If we got no declarator info from previous Sema routines, 1353833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall // just fill with the typespec loc. 1354a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (!TInfo) { 1355833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TL.initialize(DS.getTypeSpecTypeLoc()); 1356833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return; 1357833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 1358833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall 1359833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateSpecializationTypeLoc OldTL = 1360a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall cast<TemplateSpecializationTypeLoc>(TInfo->getTypeLoc()); 1361833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TL.copy(OldTL); 1362833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall } 1363cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 1364cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofExpr); 1365cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 1366cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 1367cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 1368cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall void VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 1369cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeSpecType() == DeclSpec::TST_typeofType); 1370cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setTypeofLoc(DS.getTypeSpecTypeLoc()); 1371cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setParensRange(DS.getTypeofParensRange()); 1372cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall assert(DS.getTypeRep()); 1373cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TypeSourceInfo *TInfo = 0; 1374cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall Sema::GetTypeFromParser(DS.getTypeRep(), &TInfo); 1375cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall TL.setUnderlyingTInfo(TInfo); 1376cfb708c354e2f30ccc5cba9d644650f408a1ec3eJohn McCall } 137751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 137851bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: add other typespec types and change this to an assert. 137951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.initialize(DS.getTypeSpecTypeLoc()); 138051bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 138151bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 1382eb66759e9a1d7c041354d132a14674b2d948059bArgyrios Kyrtzidis 138351bd803fbdade51d674598ed45da3d54190a656cJohn McCall class DeclaratorLocFiller : public TypeLocVisitor<DeclaratorLocFiller> { 138451bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk &Chunk; 1385f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 138651bd803fbdade51d674598ed45da3d54190a656cJohn McCall public: 138751bd803fbdade51d674598ed45da3d54190a656cJohn McCall DeclaratorLocFiller(const DeclaratorChunk &Chunk) : Chunk(Chunk) {} 13884adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 138951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 13909f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("qualified type locs not expected here!"); 139151bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 13924adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 139351bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 139451bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::BlockPointer); 139551bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setCaretLoc(Chunk.Loc); 13964adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 139751bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitPointerTypeLoc(PointerTypeLoc TL) { 139851bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 139951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 14004adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 140151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 140251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Pointer); 140351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 140454e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasBaseTypeAsWritten(true); 140554e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setHasProtocolsAsWritten(false); 140654e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setLAngleLoc(SourceLocation()); 140754e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setRAngleLoc(SourceLocation()); 14084adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 140951bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 141051bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::MemberPointer); 141151bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setStarLoc(Chunk.Loc); 141251bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: nested name specifier 14134adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 141451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 141551bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 141654e14c4db764c0636160d26c5bbf491637c83a76John McCall // 'Amp' is misleading: this might have been originally 141754e14c4db764c0636160d26c5bbf491637c83a76John McCall /// spelled with AmpAmp. 141851bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpLoc(Chunk.Loc); 141951bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 142051bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 142151bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Reference); 142251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(!Chunk.Ref.LValueRef); 142351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setAmpAmpLoc(Chunk.Loc); 142451bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 142551bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitArrayTypeLoc(ArrayTypeLoc TL) { 142651bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Array); 142751bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLBracketLoc(Chunk.Loc); 142851bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRBracketLoc(Chunk.EndLoc); 142951bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setSizeExpr(static_cast<Expr*>(Chunk.Arr.NumElts)); 143051bd803fbdade51d674598ed45da3d54190a656cJohn McCall } 143151bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitFunctionTypeLoc(FunctionTypeLoc TL) { 143251bd803fbdade51d674598ed45da3d54190a656cJohn McCall assert(Chunk.Kind == DeclaratorChunk::Function); 143351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setLParenLoc(Chunk.Loc); 143451bd803fbdade51d674598ed45da3d54190a656cJohn McCall TL.setRParenLoc(Chunk.EndLoc); 143551bd803fbdade51d674598ed45da3d54190a656cJohn McCall 143651bd803fbdade51d674598ed45da3d54190a656cJohn McCall const DeclaratorChunk::FunctionTypeInfo &FTI = Chunk.Fun; 143754e14c4db764c0636160d26c5bbf491637c83a76John McCall for (unsigned i = 0, e = TL.getNumArgs(), tpi = 0; i != e; ++i) { 14384adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis ParmVarDecl *Param = FTI.ArgInfo[i].Param.getAs<ParmVarDecl>(); 143954e14c4db764c0636160d26c5bbf491637c83a76John McCall TL.setArg(tpi++, Param); 14404adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 144151bd803fbdade51d674598ed45da3d54190a656cJohn McCall // FIXME: exception specs 14424adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 14431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 144451bd803fbdade51d674598ed45da3d54190a656cJohn McCall void VisitTypeLoc(TypeLoc TL) { 14459f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unsupported TypeLoc kind in declarator!"); 14464adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 144751bd803fbdade51d674598ed45da3d54190a656cJohn McCall }; 144851bd803fbdade51d674598ed45da3d54190a656cJohn McCall} 14494adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 1450a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create and instantiate a TypeSourceInfo with type source information. 145151bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// 145251bd803fbdade51d674598ed45da3d54190a656cJohn McCall/// \param T QualType referring to the type as written in source code. 1453a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallTypeSourceInfo * 1454a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallSema::GetTypeSourceInfoForDeclarator(Declarator &D, QualType T) { 1455a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = Context.CreateTypeSourceInfo(T); 1456a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall UnqualTypeLoc CurrTL = TInfo->getTypeLoc().getUnqualifiedLoc(); 145751bd803fbdade51d674598ed45da3d54190a656cJohn McCall 14588ce35b095e8fca45e04c1bda14ed0548ce7536adSebastian Redl for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) { 145951bd803fbdade51d674598ed45da3d54190a656cJohn McCall DeclaratorLocFiller(D.getTypeObject(i)).Visit(CurrTL); 146051bd803fbdade51d674598ed45da3d54190a656cJohn McCall CurrTL = CurrTL.getNextTypeLoc().getUnqualifiedLoc(); 14614adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis } 1462f352bddf015e537350416c296dd2963524f554f9Argyrios Kyrtzidis 146351bd803fbdade51d674598ed45da3d54190a656cJohn McCall TypeSpecLocFiller(D.getDeclSpec()).Visit(CurrTL); 14644adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 1465a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall return TInfo; 14664adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis} 14674adab7fcb4cb1e23622f4849f7ef7981ff169616Argyrios Kyrtzidis 1468a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall/// \brief Create a LocInfoType to hold the given QualType and TypeSourceInfo. 1469a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCallQualType Sema::CreateLocInfoType(QualType T, TypeSourceInfo *TInfo) { 14701bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // FIXME: LocInfoTypes are "transient", only needed for passing to/from Parser 14711bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // and Sema during declaration parsing. Try deallocating/caching them when 14721bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis // it's appropriate, instead of allocating them and keeping them around. 14731bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis LocInfoType *LocT = (LocInfoType*)BumpAlloc.Allocate(sizeof(LocInfoType), 8); 1474a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall new (LocT) LocInfoType(T, TInfo); 14751bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis assert(LocT->getTypeClass() != T->getTypeClass() && 14761bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis "LocInfoType's TypeClass conflicts with an existing Type class"); 14771bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis return QualType(LocT, 0); 14781bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 14791bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 14801bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidisvoid LocInfoType::getAsStringInternal(std::string &Str, 14811bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis const PrintingPolicy &Policy) const { 148235d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis assert(false && "LocInfoType leaked into the type system; an opaque TypeTy*" 148335d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " was used directly instead of getting the QualType through" 148435d44e5673e772d1cc7eab66818de8d9796b89caArgyrios Kyrtzidis " GetTypeFromParser"); 14851bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis} 14861bb8a45f7386a23871598d05141a07af03067925Argyrios Kyrtzidis 14879e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// UnwrapSimilarPointerTypes - If T1 and T2 are pointer types that 14889e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// may be similar (C++ 4.4), replaces T1 and T2 with the type that 14899e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// they point to and return true. If T1 and T2 aren't pointer types 14909e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// or pointer-to-member types, or if they are not similar at this 14919e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// level, returns false and leaves T1 and T2 unchanged. Top-level 14929e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// qualifiers on T1 and T2 are ignored. This function will typically 14939e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// be called in a loop that successively "unwraps" pointer and 14949e5e4aaf8b8835b552819d68d29b6d94115d8a0bSebastian Redl/// pointer-to-member types to compare them at each level. 1495ecb81f28cb279b7d8e84296445a4131fa80b69a9Chris Lattnerbool Sema::UnwrapSimilarPointerTypes(QualType& T1, QualType& T2) { 14966217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *T1PtrType = T1->getAs<PointerType>(), 14976217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek *T2PtrType = T2->getAs<PointerType>(); 149857373266011f73418381b736015d8d2bb0381176Douglas Gregor if (T1PtrType && T2PtrType) { 149957373266011f73418381b736015d8d2bb0381176Douglas Gregor T1 = T1PtrType->getPointeeType(); 150057373266011f73418381b736015d8d2bb0381176Douglas Gregor T2 = T2PtrType->getPointeeType(); 150157373266011f73418381b736015d8d2bb0381176Douglas Gregor return true; 150257373266011f73418381b736015d8d2bb0381176Douglas Gregor } 150357373266011f73418381b736015d8d2bb0381176Douglas Gregor 15046217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const MemberPointerType *T1MPType = T1->getAs<MemberPointerType>(), 15056217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek *T2MPType = T2->getAs<MemberPointerType>(); 150621593acb933324b439bc68b68e7cc7d1c3e3484dSebastian Redl if (T1MPType && T2MPType && 150721593acb933324b439bc68b68e7cc7d1c3e3484dSebastian Redl Context.getCanonicalType(T1MPType->getClass()) == 150821593acb933324b439bc68b68e7cc7d1c3e3484dSebastian Redl Context.getCanonicalType(T2MPType->getClass())) { 15094433aafbc2591b82e4ea2fc39c723b21d2497f4dSebastian Redl T1 = T1MPType->getPointeeType(); 15104433aafbc2591b82e4ea2fc39c723b21d2497f4dSebastian Redl T2 = T2MPType->getPointeeType(); 15114433aafbc2591b82e4ea2fc39c723b21d2497f4dSebastian Redl return true; 15124433aafbc2591b82e4ea2fc39c723b21d2497f4dSebastian Redl } 151357373266011f73418381b736015d8d2bb0381176Douglas Gregor return false; 151457373266011f73418381b736015d8d2bb0381176Douglas Gregor} 151557373266011f73418381b736015d8d2bb0381176Douglas Gregor 1516cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian RedlSema::TypeResult Sema::ActOnTypeName(Scope *S, Declarator &D) { 15175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.6: Type names have no identifier. This is already validated by 15185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the parser. 15195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(D.getIdentifier() == 0 && "Type name should have no identifier!"); 15201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1521a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo = 0; 1522402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor TagDecl *OwnedTag = 0; 1523a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall QualType T = GetTypeForDeclarator(D, S, &TInfo, &OwnedTag); 15245153ee66d6d4fb37b02f85df38e48dc8b46660dfChris Lattner if (D.isInvalidType()) 1525809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return true; 15265912a3544e438a92832b8c52c13f48d4f54795dcSteve Naroff 1527402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (getLangOptions().CPlusPlus) { 1528402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // Check that there are no default arguments (C++ only). 15296d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor CheckExtraCXXDefaultArguments(D); 15306d6eb57225b53fb627c565861d1d0e90645400d1Douglas Gregor 1531402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // C++0x [dcl.type]p3: 1532402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // A type-specifier-seq shall not define a class or enumeration 1533402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // unless it appears in the type-id of an alias-declaration 1534402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor // (7.1.3). 1535402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor if (OwnedTag && OwnedTag->isDefinition()) 1536402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor Diag(OwnedTag->getLocation(), diag::err_type_defined_in_type_specifier) 1537402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor << Context.getTypeDeclType(OwnedTag); 1538402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor } 1539402abb55fc2e0cdda5fb1ac90009b1f5f6774906Douglas Gregor 1540a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall if (TInfo) 1541a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall T = CreateLocInfoType(T, TInfo); 1542e8661906d49ef6c9694a9cc845ca62a85dbc016dArgyrios Kyrtzidis 15435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T.getAsOpaquePtr(); 15445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1546c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1547c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1548c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 1549c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner// Type Attribute Processing 1550c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner//===----------------------------------------------------------------------===// 1551232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 1552232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner/// HandleAddressSpaceTypeAttribute - Process an address_space attribute on the 1553c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// specified type. The attribute contains 1 argument, the id of the address 1554c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner/// space for the type. 15551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleAddressSpaceTypeAttribute(QualType &Type, 1556c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner const AttributeList &Attr, Sema &S){ 15570953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 1558232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // If this type is already address space qualified, reject it. 1559232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Clause 6.7.3 - Type qualifiers: "No type shall be qualified by qualifiers 1560232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // for two or more different address spaces." 1561232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner if (Type.getAddressSpace()) { 1562c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_multiple_qualifiers); 1563c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1564232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 15651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1566232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner // Check the attribute arguments. 1567545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 1568f3a41af4d5c98a72a1d6720bbbfd658e57ef2541Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1569c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1570232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 1571545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *ASArgExpr = static_cast<Expr *>(Attr.getArg(0)); 1572232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner llvm::APSInt addrSpace(32); 1573c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner if (!ASArgExpr->isIntegerConstantExpr(addrSpace, S.Context)) { 1574dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_address_space_not_int) 1575dcd5ef12488e4c7ea844327835896ca86b609a97Chris Lattner << ASArgExpr->getSourceRange(); 1576c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner return; 1577232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner } 1578232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 1579efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall // Bounds checking. 1580efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isSigned()) { 1581efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace.isNegative()) { 1582efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_negative) 1583efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall << ASArgExpr->getSourceRange(); 1584efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 1585efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1586efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall addrSpace.setIsSigned(false); 1587efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1588efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall llvm::APSInt max(addrSpace.getBitWidth()); 15890953e767ff7817f97b3ab20896b229891eeff45bJohn McCall max = Qualifiers::MaxAddressSpace; 1590efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall if (addrSpace > max) { 1591efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall S.Diag(Attr.getLoc(), diag::err_attribute_address_space_too_high) 15920953e767ff7817f97b3ab20896b229891eeff45bJohn McCall << Qualifiers::MaxAddressSpace << ASArgExpr->getSourceRange(); 1593efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall return; 1594efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall } 1595efadb7768e7c7418185f5a4010ecd8b21ca9731bJohn McCall 15961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned ASIdx = static_cast<unsigned>(addrSpace.getZExtValue()); 1597f11284ac87daa613bc7b30db9f54bd716d123222Fariborz Jahanian Type = S.Context.getAddrSpaceQualType(Type, ASIdx); 1598c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner} 1599c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner 1600d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian/// HandleObjCGCTypeAttribute - Process an objc's gc attribute on the 1601d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian/// specified type. The attribute contains 1 argument, weak or strong. 16021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleObjCGCTypeAttribute(QualType &Type, 16033b6b83b8311ecdfa43cbb37ccc38c107d3b8d88bChris Lattner const AttributeList &Attr, Sema &S) { 16040953e767ff7817f97b3ab20896b229891eeff45bJohn McCall if (Type.getObjCGCAttr() != Qualifiers::GCNone) { 16055934e75d98d99374f72722a69c5eefe026f35c74Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_multiple_objc_gc); 1606d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1607d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 16081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1609d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian // Check the attribute arguments. 16101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Attr.getParameterName()) { 1611ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 1612ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian << "objc_gc" << 1; 1613ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian return; 1614ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian } 16150953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers::GC GCAttr; 1616ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian if (Attr.getNumArgs() != 0) { 1617d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1618d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1619d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 16201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (Attr.getParameterName()->isStr("weak")) 16210953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Weak; 1622d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else if (Attr.getParameterName()->isStr("strong")) 16230953e767ff7817f97b3ab20896b229891eeff45bJohn McCall GCAttr = Qualifiers::Strong; 1624d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian else { 1625d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 1626d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian << "objc_gc" << Attr.getParameterName(); 1627d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian return; 1628d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian } 16291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16303b6b83b8311ecdfa43cbb37ccc38c107d3b8d88bChris Lattner Type = S.Context.getObjCGCQualType(Type, GCAttr); 1631d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian} 1632d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian 16332455636163fdd18581d7fdae816433f886d88213Mike Stump/// HandleNoReturnTypeAttribute - Process the noreturn attribute on the 16342455636163fdd18581d7fdae816433f886d88213Mike Stump/// specified type. The attribute contains 0 arguments. 16351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic void HandleNoReturnTypeAttribute(QualType &Type, 16362455636163fdd18581d7fdae816433f886d88213Mike Stump const AttributeList &Attr, Sema &S) { 16372455636163fdd18581d7fdae816433f886d88213Mike Stump if (Attr.getNumArgs() != 0) 16382455636163fdd18581d7fdae816433f886d88213Mike Stump return; 16392455636163fdd18581d7fdae816433f886d88213Mike Stump 16402455636163fdd18581d7fdae816433f886d88213Mike Stump // We only apply this to a pointer to function or a pointer to block. 16412455636163fdd18581d7fdae816433f886d88213Mike Stump if (!Type->isFunctionPointerType() 16422455636163fdd18581d7fdae816433f886d88213Mike Stump && !Type->isBlockPointerType() 16432455636163fdd18581d7fdae816433f886d88213Mike Stump && !Type->isFunctionType()) 16442455636163fdd18581d7fdae816433f886d88213Mike Stump return; 16452455636163fdd18581d7fdae816433f886d88213Mike Stump 16462455636163fdd18581d7fdae816433f886d88213Mike Stump Type = S.Context.getNoReturnType(Type); 16472455636163fdd18581d7fdae816433f886d88213Mike Stump} 16482455636163fdd18581d7fdae816433f886d88213Mike Stump 16496e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// HandleVectorSizeAttribute - this attribute is only applicable to integral 16506e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// and float scalars, although arrays, pointers, and function return values are 16516e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// allowed in conjunction with this construct. Aggregates with this attribute 16526e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// are invalid, even if they are of the same size as a corresponding scalar. 16536e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// The raw attribute should contain precisely 1 argument, the vector size for 16546e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// the variable, measured in bytes. If curType and rawAttr are well formed, 16556e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson/// this routine will return a new vector type. 16566e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompsonstatic void HandleVectorSizeAttr(QualType& CurType, const AttributeList &Attr, Sema &S) { 16576e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Check the attribute arugments. 16586e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (Attr.getNumArgs() != 1) { 16596e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 16606e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 16616e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 16626e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 16636e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson llvm::APSInt vecSize(32); 16646e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (!sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 16656e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 16666e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << "vector_size" << sizeExpr->getSourceRange(); 16676e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 16686e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 16696e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the base type must be integer or float, and can't already be a vector. 16706e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (CurType->isVectorType() || 16716e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson (!CurType->isIntegerType() && !CurType->isRealFloatingType())) { 16726e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 16736e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 16746e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 16756e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 16766e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // vecSize is specified in bytes - convert to bits. 16776e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 16786e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 16796e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // the vector size needs to be an integral multiple of the type size. 16806e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize % typeSize) { 16816e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 16826e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 16836e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 16846e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 16856e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson if (vectorSize == 0) { 16866e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 16876e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson << sizeExpr->getSourceRange(); 16886e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson return; 16896e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson } 16906e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 16916e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // Success! Instantiate the vector type, the number of elements is > 0, and 16926e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson // not required to be a power of 2, unlike GCC. 16936e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson CurType = S.Context.getVectorType(CurType, vectorSize/typeSize); 16946e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson} 16956e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson 1696c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattnervoid Sema::ProcessTypeAttributeList(QualType &Result, const AttributeList *AL) { 1697c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // Scan through and apply attributes to this type where it makes sense. Some 1698c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // attributes (such as __address_space__, __vector_size__, etc) apply to the 1699c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // type, but others can be present in the type specifiers even though they 1700c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // apply to the decl. Here we apply type attributes and ignore the rest. 1701c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner for (; AL; AL = AL->getNext()) { 1702c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // If this is an attribute we can handle, do so now, otherwise, add it to 1703c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner // the LeftOverAttrs list for rechaining. 1704c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner switch (AL->getKind()) { 1705c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner default: break; 1706c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner case AttributeList::AT_address_space: 1707c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner HandleAddressSpaceTypeAttribute(Result, *AL, *this); 1708c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner break; 1709d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian case AttributeList::AT_objc_gc: 1710d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian HandleObjCGCTypeAttribute(Result, *AL, *this); 1711d33d9c0cc0cfdcd0b10f35a6acdfb25da4a64f19Fariborz Jahanian break; 17122455636163fdd18581d7fdae816433f886d88213Mike Stump case AttributeList::AT_noreturn: 17132455636163fdd18581d7fdae816433f886d88213Mike Stump HandleNoReturnTypeAttribute(Result, *AL, *this); 17142455636163fdd18581d7fdae816433f886d88213Mike Stump break; 17156e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 17166e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson HandleVectorSizeAttr(Result, *AL, *this); 17176e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson break; 1718c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 1719c9b346d7b3b24f8bf940735cc812893dfcef1d4bChris Lattner } 1720232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner} 1721232e882226aa116807ee08a700dfc2350fbfabb1Chris Lattner 17221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @brief Ensure that the type T is a complete type. 17234ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 17244ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// This routine checks whether the type @p T is complete in any 17254ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// context where a complete type is required. If @p T is a complete 172686447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// type, returns false. If @p T is a class template specialization, 172786447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// this routine then attempts to perform class template 172886447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// instantiation. If instantiation fails, or if @p T is incomplete 172986447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// and cannot be completed, issues the diagnostic @p diag (giving it 173086447ec25fa34aa3c2f48ebc49ec09bc1f03f002Douglas Gregor/// the type @p T) and returns true. 17314ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 17324ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param Loc The location in the source that the incomplete type 17334ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// diagnostic should refer to. 17344ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 17354ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @param T The type that this routine is examining for completeness. 17364ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 17371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// @param PD The partial diagnostic that will be printed out if T is not a 1738b790661a15d93941d2c33a0ea328254277b3d7e3Anders Carlsson/// complete type. 17394ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// 17404ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @returns @c true if @p T is incomplete and a diagnostic was emitted, 17414ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor/// @c false otherwise. 174291a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlssonbool Sema::RequireCompleteType(SourceLocation Loc, QualType T, 17438c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson const PartialDiagnostic &PD, 17448c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson std::pair<SourceLocation, 17458c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson PartialDiagnostic> Note) { 174691a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson unsigned diag = PD.getDiagID(); 17471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1748573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // FIXME: Add this assertion to make sure we always get instantiation points. 1749573d9c325279b6e156c7fde163ffe3629c62d596Douglas Gregor // assert(!Loc.isInvalid() && "Invalid location in RequireCompleteType"); 1750690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // FIXME: Add this assertion to help us flush out problems with 1751690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // checking for dependent types and type-dependent expressions. 1752690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // 17531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // assert(!T->isDependentType() && 1754690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor // "Can't ask whether a dependent type is complete"); 1755690dc7f4f2c0fe87409839b7560c19dee7832195Douglas Gregor 17564ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If we have a complete type, we're done. 17574ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (!T->isIncompleteType()) 17584ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return false; 17594ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 1760d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor // If we have a class template specialization or a class member of a 1761923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // class template specialization, or an array with known size of such, 1762923d56d436f750bc1f29db50e641078725558a1bSebastian Redl // try to instantiate it. 1763923d56d436f750bc1f29db50e641078725558a1bSebastian Redl QualType MaybeTemplate = T; 176489c49f09b0292dc7c03885f6c765d667a9837597Douglas Gregor if (const ConstantArrayType *Array = Context.getAsConstantArrayType(T)) 1765923d56d436f750bc1f29db50e641078725558a1bSebastian Redl MaybeTemplate = Array->getElementType(); 1766923d56d436f750bc1f29db50e641078725558a1bSebastian Redl if (const RecordType *Record = MaybeTemplate->getAs<RecordType>()) { 17672943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor if (ClassTemplateSpecializationDecl *ClassTemplateSpec 1768d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<ClassTemplateSpecializationDecl>(Record->getDecl())) { 1769972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor if (ClassTemplateSpec->getSpecializationKind() == TSK_Undeclared) 1770972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor return InstantiateClassTemplateSpecialization(Loc, ClassTemplateSpec, 1771d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor TSK_ImplicitInstantiation, 17725842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor /*Complain=*/diag != 0); 17731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } else if (CXXRecordDecl *Rec 1774d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor = dyn_cast<CXXRecordDecl>(Record->getDecl())) { 1775d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor if (CXXRecordDecl *Pattern = Rec->getInstantiatedFromMemberClass()) { 1776b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor MemberSpecializationInfo *MSInfo = Rec->getMemberSpecializationInfo(); 1777b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor assert(MSInfo && "Missing member specialization information?"); 1778357bbd022c1d340c8e255aea7a684ddb34bc76e5Douglas Gregor // This record was instantiated from a class within a template. 1779b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor if (MSInfo->getTemplateSpecializationKind() 1780972e6ce33c7e307f4b0da12bd6079bbd6ef76948Douglas Gregor != TSK_ExplicitSpecialization) 1781f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor return InstantiateClass(Loc, Rec, Pattern, 1782f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor getTemplateInstantiationArgs(Rec), 1783f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor TSK_ImplicitInstantiation, 1784f6b1185f0a8a209c06dfc1efdb6a59cc851e970cDouglas Gregor /*Complain=*/diag != 0); 1785d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 1786d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 1787d475b8d9e6f5ff0e6ab8d15667ce8a64c7cb9a4dDouglas Gregor } 17882943aed177b33ae3f14273b11a7b398e5276ec62Douglas Gregor 17895842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor if (diag == 0) 17905842ba9fd482bb2fe5198b32c2ae549cd5474e6dDouglas Gregor return true; 17911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17924ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // We have an incomplete type. Produce a diagnostic. 179391a0cc913ecc5619b76d2e40742fd09725be8c56Anders Carlsson Diag(Loc, PD) << T; 17943c0eb160ca1361a82b9f15b3b40a2425adc14d0fEli Friedman 17958c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson // If we have a note, produce it. 17968c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson if (!Note.first.isInvalid()) 17978c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson Diag(Note.first, Note.second); 17988c8d91917c307dc3ba4f60661377c745f2a6bef2Anders Carlsson 17994ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor // If the type was a forward declaration of a class/struct/union 18001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type, produce 18014ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor const TagType *Tag = 0; 18026217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const RecordType *Record = T->getAs<RecordType>()) 18034ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag = Record; 1804183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall else if (const EnumType *Enum = T->getAs<EnumType>()) 18054ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag = Enum; 18064ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 18074ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor if (Tag && !Tag->getDecl()->isInvalidDecl()) 18081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Tag->getDecl()->getLocation(), 18094ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor Tag->isBeingDefined() ? diag::note_type_being_defined 18104ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor : diag::note_forward_declaration) 18114ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor << QualType(Tag, 0); 18124ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor 18134ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor return true; 18144ec339f43c0cae2678334850c90926bea10999c7Douglas Gregor} 1815e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor 1816e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor/// \brief Retrieve a version of the type 'T' that is qualified by the 1817e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor/// nested-name-specifier contained in SS. 1818e6258936178b4c52b43b3b9dbec13552961cd645Douglas GregorQualType Sema::getQualifiedNameType(const CXXScopeSpec &SS, QualType T) { 1819e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor if (!SS.isSet() || SS.isInvalid() || T.isNull()) 1820e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor return T; 18211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1822ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor NestedNameSpecifier *NNS 18233507369940bfb269551bfa1fec812481f60e3552Douglas Gregor = static_cast<NestedNameSpecifier *>(SS.getScopeRep()); 1824ab452ba8323d1985e08bade2bced588cddf2cc28Douglas Gregor return Context.getQualifiedNameType(NNS, T); 1825e6258936178b4c52b43b3b9dbec13552961cd645Douglas Gregor} 1826af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 1827af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders CarlssonQualType Sema::BuildTypeofExprType(Expr *E) { 18284b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (E->getType() == Context.OverloadTy) { 18294b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // C++ [temp.arg.explicit]p3 allows us to resolve a template-id to a 18304b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // function template specialization wherever deduction cannot occur. 18314b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (FunctionDecl *Specialization 18324b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor = ResolveSingleFunctionTemplateSpecialization(E)) { 18334b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor E = FixOverloadedFunctionReference(E, Specialization); 18344b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (!E) 18354b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 18364b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } else { 18374b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Diag(E->getLocStart(), 18384b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor diag::err_cannot_determine_declared_type_of_overloaded_function) 18394b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor << false << E->getSourceRange(); 18404b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 18414b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 18424b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 18434b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 1844af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getTypeOfExprType(E); 1845af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 1846af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson 1847af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders CarlssonQualType Sema::BuildDecltypeType(Expr *E) { 1848af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson if (E->getType() == Context.OverloadTy) { 18494b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // C++ [temp.arg.explicit]p3 allows us to resolve a template-id to a 18504b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor // function template specialization wherever deduction cannot occur. 18514b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (FunctionDecl *Specialization 18524b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor = ResolveSingleFunctionTemplateSpecialization(E)) { 18534b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor E = FixOverloadedFunctionReference(E, Specialization); 18544b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor if (!E) 18554b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 18564b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } else { 18574b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor Diag(E->getLocStart(), 18584b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor diag::err_cannot_determine_declared_type_of_overloaded_function) 18594b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor << true << E->getSourceRange(); 18604b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor return QualType(); 18614b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor } 1862af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson } 18634b52e25f3b05ab0f9d2492276a52323a50a84fb7Douglas Gregor 1864af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson return Context.getDecltypeType(E); 1865af017e682918f7a1a95ff08d9ab7ae3426436ca3Anders Carlsson} 1866