From: Douglas Gregor Date: Mon, 17 Nov 2008 22:58:34 +0000 (+0000) Subject: Eliminate all of the placeholder identifiers used for constructors, X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=10bd36882406cdf4805e35add1ce2f11ab9ae152;p=clang Eliminate all of the placeholder identifiers used for constructors, destructors, and conversion functions. The placeholders were used to work around the fact that the parser and some of Sema really wanted declarators to have simple identifiers; now, the code that deals with declarators will use DeclarationNames. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59469 91177308-0d34-0410-b5e6-96231b3b80d8 --- diff --git a/include/clang/AST/Decl.h b/include/clang/AST/Decl.h index 2ac94a9bdf..8e688fec5d 100644 --- a/include/clang/AST/Decl.h +++ b/include/clang/AST/Decl.h @@ -100,7 +100,7 @@ public: /// expensive string manipulation, so it should be called only when /// absolutely critical. For simple declarations, @c /// getIdentifierName() should suffice. - std::string getName() const; + std::string getName() const { return Name.getAsString(); } static bool classof(const Decl *D) { return D->getKind() >= NamedFirst && D->getKind() <= NamedLast; @@ -558,7 +558,7 @@ protected: public: static FunctionDecl *Create(ASTContext &C, DeclContext *DC, SourceLocation L, - IdentifierInfo *Id, QualType T, + DeclarationName N, QualType T, StorageClass S = None, bool isInline = false, ScopedDecl *PrevDecl = 0, SourceLocation TSStartLoc = SourceLocation()); diff --git a/include/clang/AST/DeclCXX.h b/include/clang/AST/DeclCXX.h index 8edfc650a4..86cd68ac8e 100644 --- a/include/clang/AST/DeclCXX.h +++ b/include/clang/AST/DeclCXX.h @@ -58,6 +58,11 @@ public: isa(FD) || isa(FD)) && "Overloaded functions must have the same name"); Functions.push_back(FD); + + // An overloaded function declaration always has the location of + // the most-recently-added function declaration. + if (FD->getLocation().isValid()) + this->setLocation(FD->getLocation()); } function_iterator function_begin() { return Functions.begin(); } @@ -396,7 +401,7 @@ protected: public: static CXXMethodDecl *Create(ASTContext &C, CXXRecordDecl *RD, - SourceLocation L, IdentifierInfo *Id, + SourceLocation L, DeclarationName N, QualType T, bool isStatic = false, bool isInline = false, ScopedDecl *PrevDecl = 0); diff --git a/include/clang/AST/DeclarationName.h b/include/clang/AST/DeclarationName.h index 909255c349..877d23566b 100644 --- a/include/clang/AST/DeclarationName.h +++ b/include/clang/AST/DeclarationName.h @@ -164,6 +164,9 @@ public: /// getNameKind - Determine what kind of name this is. NameKind getNameKind() const; + /// getName - Retrieve the human-readable string for this name. + std::string getAsString() const; + /// getAsIdentifierInfo - Retrieve the IdentifierInfo * stored in /// this declaration name, or NULL if this declaration name isn't a /// simple identifier. diff --git a/include/clang/Basic/DiagnosticKinds.def b/include/clang/Basic/DiagnosticKinds.def index c232eaa449..d427e69ac7 100644 --- a/include/clang/Basic/DiagnosticKinds.def +++ b/include/clang/Basic/DiagnosticKinds.def @@ -660,6 +660,8 @@ DIAG(ext_anon_param_requires_type_specifier, EXTENSION, "type specifier required for unnamed parameter, defaults to int") DIAG(err_missing_param, ERROR, "expected parameter declarator") +DIAG(err_bad_variable_name, ERROR, + "'%0' cannot be the name of a variable or data member") DIAG(err_declarator_need_ident, ERROR, "declarator requires an identifier") diff --git a/include/clang/Basic/IdentifierTable.h b/include/clang/Basic/IdentifierTable.h index a13d4ba538..58ad133e3b 100644 --- a/include/clang/Basic/IdentifierTable.h +++ b/include/clang/Basic/IdentifierTable.h @@ -179,16 +179,6 @@ class IdentifierTable { /// overloadable operators in C++. IdentifierInfo *OverloadedOperators[NUM_OVERLOADED_OPERATORS]; - /// ConstructorId - Placeholder identifier for C++ constructors. - IdentifierInfo *ConstructorId; - - /// DestructorId - Placeholder identifier for C++ destructor. - IdentifierInfo *DestructorId; - - /// ConversionFunctionId - Placeholder identifier for a C++ - /// conversion function. - IdentifierInfo *ConversionFunctionId; - public: /// IdentifierTable ctor - Create the identifier table, populating it with /// info about the language keywords for the language specified by LangOpts. @@ -214,18 +204,6 @@ public: return *OverloadedOperators[Op]; } - /// getConstructorId - Return a placeholder identifier for a C++ - /// constructor. - IdentifierInfo &getConstructorId(); - - /// getDestructorId - Return a placeholder identifier for a C++ - /// destructor. - IdentifierInfo &getDestructorId(); - - /// getConversionFunctionId - Return a placeholder identifier for a - /// C++ conversion function. - IdentifierInfo &getConversionFunctionId(); - typedef HashTableTy::const_iterator iterator; typedef HashTableTy::const_iterator const_iterator; diff --git a/include/clang/Parse/DeclSpec.h b/include/clang/Parse/DeclSpec.h index d1b887ff30..46629637bc 100644 --- a/include/clang/Parse/DeclSpec.h +++ b/include/clang/Parse/DeclSpec.h @@ -767,7 +767,12 @@ public: /// isPastIdentifier - Return true if we have parsed beyond the point where /// the bool isPastIdentifier() const { return IdentifierLoc.isValid(); } - + + /// hasName - Whether this declarator has a name, which might be an + /// identifier (accessible via getIdentifier()) or some kind of + /// special C++ name (constructor, destructor, etc.). + bool hasName() const { return getKind() != DK_Abstract; } + IdentifierInfo *getIdentifier() const { return Identifier; } SourceLocation getIdentifierLoc() const { return IdentifierLoc; } @@ -780,31 +785,26 @@ public: Kind = DK_Abstract; } - /// SetConstructor - Set this declarator to be a C++ constructor + /// setConstructor - Set this declarator to be a C++ constructor /// declarator. - void SetConstructor(Action::TypeTy *Ty, IdentifierInfo *ID, - SourceLocation Loc) { - Identifier = ID; + void setConstructor(Action::TypeTy *Ty, SourceLocation Loc) { IdentifierLoc = Loc; Kind = DK_Constructor; Type = Ty; } - /// SetDestructor - Set this declarator to be a C++ destructor + /// setDestructor - Set this declarator to be a C++ destructor /// declarator. - void SetDestructor(Action::TypeTy *Ty, IdentifierInfo *ID, - SourceLocation Loc) { - Identifier = ID; + void setDestructor(Action::TypeTy *Ty, SourceLocation Loc) { IdentifierLoc = Loc; Kind = DK_Destructor; Type = Ty; } - // SetConversionFunction - Set this declarator to be a C++ + // setConversionFunction - Set this declarator to be a C++ // conversion function declarator. - void SetConversionFunction(Action::TypeTy *Ty, IdentifierInfo *ID, - SourceLocation Loc) { - Identifier = ID; + void setConversionFunction(Action::TypeTy *Ty, SourceLocation Loc) { + Identifier = 0; IdentifierLoc = Loc; Kind = DK_Conversion; Type = Ty; diff --git a/lib/AST/Decl.cpp b/lib/AST/Decl.cpp index dc4d6027ee..eee934bebb 100644 --- a/lib/AST/Decl.cpp +++ b/lib/AST/Decl.cpp @@ -67,12 +67,12 @@ ParmVarDecl *ParmVarDecl::Create(ASTContext &C, DeclContext *DC, FunctionDecl *FunctionDecl::Create(ASTContext &C, DeclContext *DC, SourceLocation L, - IdentifierInfo *Id, QualType T, + DeclarationName N, QualType T, StorageClass S, bool isInline, ScopedDecl *PrevDecl, SourceLocation TypeSpecStartLoc) { void *Mem = C.getAllocator().Allocate(); - return new (Mem) FunctionDecl(Function, DC, L, Id, T, S, isInline, PrevDecl, + return new (Mem) FunctionDecl(Function, DC, L, N, T, S, isInline, PrevDecl, TypeSpecStartLoc); } @@ -129,54 +129,6 @@ FileScopeAsmDecl *FileScopeAsmDecl::Create(ASTContext &C, return new (Mem) FileScopeAsmDecl(L, Str); } -//===----------------------------------------------------------------------===// -// NamedDecl Implementation -//===----------------------------------------------------------------------===// - -std::string NamedDecl::getName() const { - switch (Name.getNameKind()) { - case DeclarationName::Identifier: - if (const IdentifierInfo *II = Name.getAsIdentifierInfo()) - return II->getName(); - return ""; - - case DeclarationName::ObjCZeroArgSelector: - case DeclarationName::ObjCOneArgSelector: - case DeclarationName::ObjCMultiArgSelector: - return Name.getObjCSelector().getName(); - - case DeclarationName::CXXConstructorName: { - QualType ClassType = Name.getCXXNameType(); - if (const RecordType *ClassRec = ClassType->getAsRecordType()) - return ClassRec->getDecl()->getName(); - return ClassType.getAsString(); - } - - case DeclarationName::CXXDestructorName: { - std::string Result = "~"; - QualType Type = Name.getCXXNameType(); - if (const RecordType *Rec = Type->getAsRecordType()) - Result += Rec->getDecl()->getName(); - else - Result += Type.getAsString(); - return Result; - } - - case DeclarationName::CXXConversionFunctionName: { - std::string Result = "operator "; - QualType Type = Name.getCXXNameType(); - if (const RecordType *Rec = Type->getAsRecordType()) - Result += Rec->getDecl()->getName(); - else - Result += Type.getAsString(); - return Result; - } - } - - assert(false && "Unexpected declaration name kind"); - return ""; -} - //===----------------------------------------------------------------------===// // ScopedDecl Implementation //===----------------------------------------------------------------------===// diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp index 8855e99a26..4037404124 100644 --- a/lib/AST/DeclCXX.cpp +++ b/lib/AST/DeclCXX.cpp @@ -123,11 +123,12 @@ void CXXRecordDecl::addConversionFunction(ASTContext &Context, CXXMethodDecl * CXXMethodDecl::Create(ASTContext &C, CXXRecordDecl *RD, - SourceLocation L, IdentifierInfo *Id, + SourceLocation L, DeclarationName N, QualType T, bool isStatic, bool isInline, ScopedDecl *PrevDecl) { void *Mem = C.getAllocator().Allocate(); - return new (Mem) CXXMethodDecl(CXXMethod, RD, L, Id, T, isStatic, isInline, PrevDecl); + return new (Mem) CXXMethodDecl(CXXMethod, RD, L, N, T, isStatic, isInline, + PrevDecl); } QualType CXXMethodDecl::getThisType(ASTContext &C) const { diff --git a/lib/AST/DeclarationName.cpp b/lib/AST/DeclarationName.cpp index 4266ef5eaf..d58016a44c 100644 --- a/lib/AST/DeclarationName.cpp +++ b/lib/AST/DeclarationName.cpp @@ -12,6 +12,8 @@ // //===----------------------------------------------------------------------===// #include "clang/AST/DeclarationName.h" +#include "clang/AST/Type.h" +#include "clang/AST/Decl.h" #include "clang/Basic/IdentifierTable.h" #include "llvm/ADT/FoldingSet.h" #include "llvm/Bitcode/Serialize.h" @@ -94,6 +96,50 @@ DeclarationName::NameKind DeclarationName::getNameKind() const { return Identifier; } +std::string DeclarationName::getAsString() const { + switch (getNameKind()) { + case Identifier: + if (const IdentifierInfo *II = getAsIdentifierInfo()) + return II->getName(); + return ""; + + case ObjCZeroArgSelector: + case ObjCOneArgSelector: + case ObjCMultiArgSelector: + return getObjCSelector().getName(); + + case CXXConstructorName: { + QualType ClassType = getCXXNameType(); + if (const RecordType *ClassRec = ClassType->getAsRecordType()) + return ClassRec->getDecl()->getName(); + return ClassType.getAsString(); + } + + case CXXDestructorName: { + std::string Result = "~"; + QualType Type = getCXXNameType(); + if (const RecordType *Rec = Type->getAsRecordType()) + Result += Rec->getDecl()->getName(); + else + Result += Type.getAsString(); + return Result; + } + + case CXXConversionFunctionName: { + std::string Result = "operator "; + QualType Type = getCXXNameType(); + if (const RecordType *Rec = Type->getAsRecordType()) + Result += Rec->getDecl()->getName(); + else + Result += Type.getAsString(); + return Result; + } + } + + assert(false && "Unexpected declaration name kind"); + return ""; +} + QualType DeclarationName::getCXXNameType() const { if (CXXSpecialName *CXXName = getAsCXXSpecialName()) return CXXName->Type; diff --git a/lib/Basic/IdentifierTable.cpp b/lib/Basic/IdentifierTable.cpp index b83266d1ff..38bdb7e630 100644 --- a/lib/Basic/IdentifierTable.cpp +++ b/lib/Basic/IdentifierTable.cpp @@ -42,8 +42,7 @@ IdentifierInfo::IdentifierInfo() { IdentifierTable::IdentifierTable(const LangOptions &LangOpts) // Start with space for 8K identifiers. - : HashTable(8192), - ConstructorId(0), DestructorId(0), ConversionFunctionId(0) { + : HashTable(8192) { // Populate the identifier table with info about keywords for the current // language. @@ -53,32 +52,7 @@ IdentifierTable::IdentifierTable(const LangOptions &LangOpts) // This cstor is intended to be used only for serialization. IdentifierTable::IdentifierTable() - : HashTable(8192), - ConstructorId(0), DestructorId(0), ConversionFunctionId(0) { } - -/// getConstructorId - Return a placeholder identifier for a C++ -/// constructor. -IdentifierInfo &IdentifierTable::getConstructorId() { - if (!ConstructorId) - ConstructorId = &get(""); - return *ConstructorId; -} - -/// getDestructorId - Return a placeholder identifier for a C++ -/// destructor. -IdentifierInfo &IdentifierTable::getDestructorId() { - if (!DestructorId) - DestructorId = &get(""); - return *DestructorId; -} - -/// getConversionFunctionId - Return a placeholder identifier for a -/// C++ conversion function. -IdentifierInfo &IdentifierTable::getConversionFunctionId() { - if (!ConversionFunctionId) - ConversionFunctionId = &get(""); - return *ConversionFunctionId; -} + : HashTable(8192) { } //===----------------------------------------------------------------------===// // Language Keyword Implementation diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp index baa510485a..048fafbe2d 100644 --- a/lib/Parse/ParseDecl.cpp +++ b/lib/Parse/ParseDecl.cpp @@ -1440,8 +1440,7 @@ void Parser::ParseDirectDeclarator(Declarator &D) { // a normal identifier. if (getLang().CPlusPlus && Actions.isCurrentClassName(*Tok.getIdentifierInfo(), CurScope)) - D.SetConstructor(Actions.isTypeName(*Tok.getIdentifierInfo(), CurScope), - &PP.getIdentifierTable().getConstructorId(), + D.setConstructor(Actions.isTypeName(*Tok.getIdentifierInfo(), CurScope), Tok.getLocation()); else D.SetIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); @@ -1452,8 +1451,7 @@ void Parser::ParseDirectDeclarator(Declarator &D) { SourceLocation TildeLoc = ConsumeToken(); if (Tok.is(tok::identifier)) { if (TypeTy *Type = ParseClassName()) - D.SetDestructor(Type, &PP.getIdentifierTable().getDestructorId(), - TildeLoc); + D.setDestructor(Type, TildeLoc); else D.SetIdentifier(0, TildeLoc); } else { @@ -1469,9 +1467,7 @@ void Parser::ParseDirectDeclarator(Declarator &D) { } else { // This must be a conversion function (C++ [class.conv.fct]). if (TypeTy *ConvType = ParseConversionFunctionId()) { - D.SetConversionFunction(ConvType, - &PP.getIdentifierTable().getConversionFunctionId(), - OperatorLoc); + D.setConversionFunction(ConvType, OperatorLoc); } } } else if (Tok.is(tok::l_paren) && SS.isEmpty()) { diff --git a/lib/Parse/ParseDeclCXX.cpp b/lib/Parse/ParseDeclCXX.cpp index 752d552f11..48ced22723 100644 --- a/lib/Parse/ParseDeclCXX.cpp +++ b/lib/Parse/ParseDeclCXX.cpp @@ -454,7 +454,7 @@ Parser::DeclTy *Parser::ParseCXXClassMemberDeclaration(AccessSpecifier AS) { // Parse the first declarator. ParseDeclarator(DeclaratorInfo); // Error parsing the declarator? - if (DeclaratorInfo.getIdentifier() == 0) { + if (!DeclaratorInfo.hasName()) { // If so, skip until the semi-colon or a }. SkipUntil(tok::r_brace, true); if (Tok.is(tok::semi)) diff --git a/lib/Parse/Parser.cpp b/lib/Parse/Parser.cpp index ee4cd7b554..3b36ebec7b 100644 --- a/lib/Parse/Parser.cpp +++ b/lib/Parse/Parser.cpp @@ -424,7 +424,7 @@ Parser::DeclTy *Parser::ParseDeclarationOrFunctionDefinition() { Declarator DeclaratorInfo(DS, Declarator::FileContext); ParseDeclarator(DeclaratorInfo); // Error parsing the declarator? - if (DeclaratorInfo.getIdentifier() == 0) { + if (!DeclaratorInfo.hasName()) { // If so, skip until the semi-colon or a }. SkipUntil(tok::r_brace, true); if (Tok.is(tok::semi)) diff --git a/lib/Sema/Sema.h b/lib/Sema/Sema.h index 50a12f1385..771dc96463 100644 --- a/lib/Sema/Sema.h +++ b/lib/Sema/Sema.h @@ -272,7 +272,8 @@ public: QualType ConvertDeclSpecToType(const DeclSpec &DS); void ProcessTypeAttributeList(QualType &Result, const AttributeList *AL); QualType GetTypeForDeclarator(Declarator &D, Scope *S); - + DeclarationName GetNameForDeclarator(Declarator &D); + QualType ObjCGetTypeForMethodDefinition(DeclTy *D); bool UnwrapSimilarPointerTypes(QualType& T1, QualType& T2); diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp index ea2a3ad9a7..9c0a40e74a 100644 --- a/lib/Sema/SemaDecl.cpp +++ b/lib/Sema/SemaDecl.cpp @@ -754,14 +754,49 @@ bool Sema::CheckInitializerTypes(Expr *&Init, QualType &DeclType, return CheckInitList.HadError(); } +/// GetNameForDeclarator - Determine the full declaration name for the +/// given Declarator. +DeclarationName Sema::GetNameForDeclarator(Declarator &D) { + switch (D.getKind()) { + case Declarator::DK_Abstract: + assert(D.getIdentifier() == 0 && "abstract declarators have no name"); + return DeclarationName(); + + case Declarator::DK_Normal: + assert (D.getIdentifier() != 0 && "normal declarators have an identifier"); + return DeclarationName(D.getIdentifier()); + + case Declarator::DK_Constructor: { + QualType Ty = Context.getTypeDeclType((TypeDecl *)D.getDeclaratorIdType()); + Ty = Context.getCanonicalType(Ty); + return Context.DeclarationNames.getCXXConstructorName(Ty); + } + + case Declarator::DK_Destructor: { + QualType Ty = Context.getTypeDeclType((TypeDecl *)D.getDeclaratorIdType()); + Ty = Context.getCanonicalType(Ty); + return Context.DeclarationNames.getCXXDestructorName(Ty); + } + + case Declarator::DK_Conversion: { + QualType Ty = QualType::getFromOpaquePtr(D.getDeclaratorIdType()); + Ty = Context.getCanonicalType(Ty); + return Context.DeclarationNames.getCXXConversionFunctionName(Ty); + } + } + + assert(false && "Unknown name kind"); + return DeclarationName(); +} + Sema::DeclTy * Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl) { ScopedDecl *LastDeclarator = dyn_cast_or_null((Decl *)lastDecl); - IdentifierInfo *II = D.getIdentifier(); - + DeclarationName Name = GetNameForDeclarator(D); + // All of these full declarators require an identifier. If it doesn't have // one, the ParsedFreeStandingDeclSpec action should be used. - if (II == 0) { + if (!Name) { if (!D.getInvalidType()) // Reject this if we think it is valid. Diag(D.getDeclSpec().getSourceRange().getBegin(), diag::err_declarator_need_ident, @@ -782,10 +817,10 @@ Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl) { // See if this is a redefinition of a variable in the same scope. if (!D.getCXXScopeSpec().isSet()) { DC = CurContext; - PrevDecl = LookupDecl(II, Decl::IDNS_Ordinary, S); + PrevDecl = LookupDecl(Name, Decl::IDNS_Ordinary, S); } else { // Something like "int foo::x;" DC = static_cast(D.getCXXScopeSpec().getScopeRep()); - PrevDecl = LookupDecl(II, Decl::IDNS_Ordinary, S, DC); + PrevDecl = LookupDecl(Name, Decl::IDNS_Ordinary, S, DC); // C++ 7.3.1.2p2: // Members (including explicit specializations of templates) of a named @@ -798,16 +833,17 @@ Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl) { if (PrevDecl == 0) { // No previous declaration in the qualifying scope. Diag(D.getIdentifierLoc(), diag::err_typecheck_no_member, - II->getName(), D.getCXXScopeSpec().getRange()); + Name.getAsString(), D.getCXXScopeSpec().getRange()); } else if (!CurContext->Encloses(DC)) { // The qualifying scope doesn't enclose the original declaration. // Emit diagnostic based on current scope. SourceLocation L = D.getIdentifierLoc(); SourceRange R = D.getCXXScopeSpec().getRange(); if (isa(CurContext)) { - Diag(L, diag::err_invalid_declarator_in_function, II->getName(), R); + Diag(L, diag::err_invalid_declarator_in_function, Name.getAsString(), + R); } else { - Diag(L, diag::err_invalid_declarator_scope, II->getName(), + Diag(L, diag::err_invalid_declarator_scope, Name.getAsString(), cast(DC)->getName(), R); } } @@ -878,13 +914,9 @@ Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl) { bool isInvalidDecl = CheckConstructorDeclarator(D, R, SC); // Create the new declaration - QualType ClassType = Context.getTypeDeclType(cast(DC)); - ClassType = Context.getCanonicalType(ClassType); - DeclarationName ConName - = Context.DeclarationNames.getCXXConstructorName(ClassType); NewFD = CXXConstructorDecl::Create(Context, cast(DC), - D.getIdentifierLoc(), ConName, R, + D.getIdentifierLoc(), Name, R, isExplicit, isInline, /*isImplicitlyDeclared=*/false); @@ -895,14 +927,9 @@ Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl) { if (DC->isCXXRecord()) { bool isInvalidDecl = CheckDestructorDeclarator(D, R, SC); - QualType ClassType = Context.getTypeDeclType(cast(DC)); - ClassType = Context.getCanonicalType(ClassType); - DeclarationName DesName - = Context.DeclarationNames.getCXXDestructorName(ClassType); - NewFD = CXXDestructorDecl::Create(Context, cast(DC), - D.getIdentifierLoc(), DesName, R, + D.getIdentifierLoc(), Name, R, isInline, /*isImplicitlyDeclared=*/false); @@ -913,7 +940,7 @@ Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl) { // Create a FunctionDecl to satisfy the function definition parsing // code path. NewFD = FunctionDecl::Create(Context, DC, D.getIdentifierLoc(), - II, R, SC, isInline, LastDeclarator, + Name, R, SC, isInline, LastDeclarator, // FIXME: Move to DeclGroup... D.getDeclSpec().getSourceRange().getBegin()); NewFD->setInvalidDecl(); @@ -926,14 +953,9 @@ Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl) { } else { bool isInvalidDecl = CheckConversionDeclarator(D, R, SC); - QualType ConvType = R->getAsFunctionType()->getResultType(); - ConvType = Context.getCanonicalType(ConvType); - DeclarationName ConvName - = Context.DeclarationNames.getCXXConversionFunctionName(ConvType); - NewFD = CXXConversionDecl::Create(Context, cast(DC), - D.getIdentifierLoc(), ConvName, R, + D.getIdentifierLoc(), Name, R, isInline, isExplicit); if (isInvalidDecl) @@ -942,13 +964,13 @@ Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl) { } else if (DC->isCXXRecord()) { // This is a C++ method declaration. NewFD = CXXMethodDecl::Create(Context, cast(DC), - D.getIdentifierLoc(), II, R, + D.getIdentifierLoc(), Name, R, (SC == FunctionDecl::Static), isInline, LastDeclarator); } else { NewFD = FunctionDecl::Create(Context, DC, D.getIdentifierLoc(), - II, R, SC, isInline, LastDeclarator, + Name, R, SC, isInline, LastDeclarator, // FIXME: Move to DeclGroup... D.getDeclSpec().getSourceRange().getBegin()); } @@ -1128,6 +1150,14 @@ Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl) { Diag(D.getIdentifierLoc(), diag::err_mutable_nonmember); InvalidDecl = true; } + + IdentifierInfo *II = Name.getAsIdentifierInfo(); + if (!II) { + Diag(D.getIdentifierLoc(), diag::err_bad_variable_name, + Name.getAsString()); + return 0; + } + if (DC->isCXXRecord()) { assert(SC == VarDecl::Static && "Invalid storage class for member!"); // This is a static data member for a C++ class. @@ -1184,7 +1214,7 @@ Sema::ActOnDeclarator(Scope *S, Declarator &D, DeclTy *lastDecl) { New->setLexicalDeclContext(CurContext); // If this has an identifier, add it to the scope stack. - if (II) + if (Name) PushOnScopeChains(New, S); // If any semantic error occurred, mark the decl as invalid. if (D.getInvalidType() || InvalidDecl) diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp index 2df6073e8b..f601fe4dc6 100644 --- a/lib/Sema/SemaDeclCXX.cpp +++ b/lib/Sema/SemaDeclCXX.cpp @@ -421,7 +421,7 @@ Sema::ActOnCXXMemberDeclarator(Scope *S, AccessSpecifier AS, Declarator &D, ExprTy *BW, ExprTy *InitExpr, DeclTy *LastInGroup) { const DeclSpec &DS = D.getDeclSpec(); - IdentifierInfo *II = D.getIdentifier(); + DeclarationName Name = GetNameForDeclarator(D); Expr *BitWidth = static_cast(BW); Expr *Init = static_cast(InitExpr); SourceLocation Loc = D.getIdentifierLoc(); @@ -499,7 +499,7 @@ Sema::ActOnCXXMemberDeclarator(Scope *S, AccessSpecifier AS, Declarator &D, if (!Member) return LastInGroup; - assert((II || isInstField) && "No identifier for non-field ?"); + assert((Name || isInstField) && "No identifier for non-field ?"); // set/getAccess is not part of Decl's interface to avoid bloating it with C++ // specific methods. Use a wrapper class that can be used with all C++ class @@ -532,14 +532,14 @@ Sema::ActOnCXXMemberDeclarator(Scope *S, AccessSpecifier AS, Declarator &D, // FIXME: Emit diagnostic about only constructors taking base initializers // or something similar, when constructor support is in place. Diag(Loc, diag::err_not_bitfield_type, - II->getName(), BitWidth->getSourceRange()); + Name.getAsString(), BitWidth->getSourceRange()); InvalidDecl = true; } else if (isInstField) { // C++ 9.6p3: A bit-field shall have integral or enumeration type. if (!cast(Member)->getType()->isIntegralType()) { Diag(Loc, diag::err_not_integral_type_bitfield, - II->getName(), BitWidth->getSourceRange()); + Name.getAsString(), BitWidth->getSourceRange()); InvalidDecl = true; } @@ -547,12 +547,12 @@ Sema::ActOnCXXMemberDeclarator(Scope *S, AccessSpecifier AS, Declarator &D, // A function typedef ("typedef int f(); f a;"). // C++ 9.6p3: A bit-field shall have integral or enumeration type. Diag(Loc, diag::err_not_integral_type_bitfield, - II->getName(), BitWidth->getSourceRange()); + Name.getAsString(), BitWidth->getSourceRange()); InvalidDecl = true; } else if (isa(Member)) { // "cannot declare 'A' to be a bit-field type" - Diag(Loc, diag::err_not_bitfield_type, II->getName(), + Diag(Loc, diag::err_not_bitfield_type, Name.getAsString(), BitWidth->getSourceRange()); InvalidDecl = true; @@ -561,7 +561,7 @@ Sema::ActOnCXXMemberDeclarator(Scope *S, AccessSpecifier AS, Declarator &D, "Didn't we cover all member kinds?"); // C++ 9.6p3: A bit-field shall not be a static member. // "static member 'A' cannot be a bit-field" - Diag(Loc, diag::err_static_not_bitfield, II->getName(), + Diag(Loc, diag::err_static_not_bitfield, Name.getAsString(), BitWidth->getSourceRange()); InvalidDecl = true; } @@ -584,14 +584,14 @@ Sema::ActOnCXXMemberDeclarator(Scope *S, AccessSpecifier AS, Declarator &D, } else { // not const integral. Diag(Loc, diag::err_member_initialization, - II->getName(), Init->getSourceRange()); + Name.getAsString(), Init->getSourceRange()); InvalidDecl = true; } } else { // not static member. Diag(Loc, diag::err_member_initialization, - II->getName(), Init->getSourceRange()); + Name.getAsString(), Init->getSourceRange()); InvalidDecl = true; } } diff --git a/test/SemaCXX/conversion-function.cpp b/test/SemaCXX/conversion-function.cpp index 6450387b02..22ed411e64 100644 --- a/test/SemaCXX/conversion-function.cpp +++ b/test/SemaCXX/conversion-function.cpp @@ -15,6 +15,8 @@ public: operator int(); // expected-error{{conversion function must be a non-static member function}} +operator int; // expected-error{{'operator int' cannot be the name of a variable or data member}} + typedef int func_type(int); typedef int array_type[10]; diff --git a/test/SemaCXX/overloaded-operator-decl.cpp b/test/SemaCXX/overloaded-operator-decl.cpp index 8a042f68ef..7b05c38274 100644 --- a/test/SemaCXX/overloaded-operator-decl.cpp +++ b/test/SemaCXX/overloaded-operator-decl.cpp @@ -20,7 +20,8 @@ void f(X x) { x = operator+(x, x); } -X operator+(int, float); // expected-error{{overloaded 'operator+' must have at least one parameter of class or enumeration type}} +X operator+(int, float); // expected-error{{overloaded 'operator+' must have at least one parameter of class or enumeration type}} \ + // expected-error{{previous definition is here}} X operator*(X, X = 5); // expected-error{{parameter of overloaded 'operator*' cannot have a default argument}} @@ -35,3 +36,5 @@ typedef float FLOAT; Y& operator++(Y&); Y operator++(Y&, INT); X operator++(X&, FLOAT); // expected-error{{parameter of overloaded post-increment operator must have type 'int' (not 'float')}} + +int operator+; // expected-error{{redefinition of 'operator+' as different kind of symbol}}