| //===--- Sema.h - Semantic Analysis & AST Building --------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines the Sema class, which performs semantic analysis and |
| // builds ASTs. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_AST_SEMA_H |
| #define LLVM_CLANG_AST_SEMA_H |
| |
| #include "IdentifierResolver.h" |
| #include "CXXFieldCollector.h" |
| #include "SemaOverload.h" |
| #include "clang/AST/DeclBase.h" |
| #include "clang/Parse/Action.h" |
| #include "clang/Sema/SemaDiagnostic.h" |
| #include "llvm/ADT/SmallVector.h" |
| #include "llvm/ADT/DenseSet.h" |
| #include "llvm/ADT/SmallPtrSet.h" |
| #include "llvm/ADT/OwningPtr.h" |
| #include <string> |
| #include <vector> |
| |
| namespace llvm { |
| class APSInt; |
| } |
| |
| namespace clang { |
| class ASTContext; |
| class ASTConsumer; |
| class Preprocessor; |
| class Decl; |
| class DeclContext; |
| class DeclSpec; |
| class NamedDecl; |
| class Stmt; |
| class Expr; |
| class InitListExpr; |
| class DesignatedInitExpr; |
| class CallExpr; |
| class DeclRefExpr; |
| class VarDecl; |
| class ParmVarDecl; |
| class TypedefDecl; |
| class FunctionDecl; |
| class QualType; |
| struct LangOptions; |
| class Token; |
| class IntegerLiteral; |
| class StringLiteral; |
| class ArrayType; |
| class LabelStmt; |
| class SwitchStmt; |
| class ExtVectorType; |
| class TypedefDecl; |
| class TemplateDecl; |
| class TemplateArgument; |
| class TemplateParameterList; |
| class TemplateTemplateParmDecl; |
| class ObjCInterfaceDecl; |
| class ObjCCompatibleAliasDecl; |
| class ObjCProtocolDecl; |
| class ObjCImplementationDecl; |
| class ObjCCategoryImplDecl; |
| class ObjCCategoryDecl; |
| class ObjCIvarDecl; |
| class ObjCMethodDecl; |
| class ObjCPropertyDecl; |
| class ObjCContainerDecl; |
| struct BlockSemaInfo; |
| class BasePaths; |
| class MemberLookupCriteria; |
| |
| /// Sema - This implements semantic analysis and AST building for C. |
| class Sema : public Action { |
| Sema(const Sema&); // DO NOT IMPLEMENT |
| void operator=(const Sema&); // DO NOT IMPLEMENT |
| public: |
| const LangOptions &LangOpts; |
| Preprocessor &PP; |
| ASTContext &Context; |
| ASTConsumer &Consumer; |
| Diagnostic &Diags; |
| SourceManager &SourceMgr; |
| |
| /// CurContext - This is the current declaration context of parsing. |
| DeclContext *CurContext; |
| |
| /// PreDeclaratorDC - Keeps the declaration context before switching to the |
| /// context of a declarator's nested-name-specifier. |
| DeclContext *PreDeclaratorDC; |
| |
| /// CurBlock - If inside of a block definition, this contains a pointer to |
| /// the active block object that represents it. |
| BlockSemaInfo *CurBlock; |
| |
| /// PackContext - Manages the stack for #pragma pack. An alignment |
| /// of 0 indicates default alignment. |
| void *PackContext; // Really a "PragmaPackStack*" |
| |
| /// LabelMap - This is a mapping from label identifiers to the LabelStmt for |
| /// it (which acts like the label decl in some ways). Forward referenced |
| /// labels have a LabelStmt created for them with a null location & SubStmt. |
| llvm::DenseMap<IdentifierInfo*, LabelStmt*> LabelMap; |
| |
| llvm::SmallVector<SwitchStmt*, 8> SwitchStack; |
| |
| /// ExtVectorDecls - This is a list all the extended vector types. This allows |
| /// us to associate a raw vector type with one of the ext_vector type names. |
| /// This is only necessary for issuing pretty diagnostics. |
| llvm::SmallVector<TypedefDecl*, 24> ExtVectorDecls; |
| |
| /// ObjCImplementations - Keep track of all class @implementations |
| /// so we can emit errors on duplicates. |
| llvm::DenseMap<IdentifierInfo*, ObjCImplementationDecl*> ObjCImplementations; |
| |
| /// ObjCCategoryImpls - Maintain a list of category implementations so |
| /// we can check for duplicates and find local method declarations. |
| llvm::SmallVector<ObjCCategoryImplDecl*, 8> ObjCCategoryImpls; |
| |
| /// ObjCProtocols - Keep track of all protocol declarations declared |
| /// with @protocol keyword, so that we can emit errors on duplicates and |
| /// find the declarations when needed. |
| llvm::DenseMap<IdentifierInfo*, ObjCProtocolDecl*> ObjCProtocols; |
| |
| /// ObjCInterfaceDecls - Keep track of all class declarations declared |
| /// with @interface, so that we can emit errors on duplicates and |
| /// find the declarations when needed. |
| typedef llvm::DenseMap<const IdentifierInfo*, |
| ObjCInterfaceDecl*> ObjCInterfaceDeclsTy; |
| ObjCInterfaceDeclsTy ObjCInterfaceDecls; |
| |
| /// ObjCAliasDecls - Keep track of all class declarations declared |
| /// with @compatibility_alias, so that we can emit errors on duplicates and |
| /// find the declarations when needed. This construct is ancient and will |
| /// likely never be seen. Nevertheless, it is here for compatibility. |
| typedef llvm::DenseMap<const IdentifierInfo*, |
| ObjCCompatibleAliasDecl*> ObjCAliasTy; |
| ObjCAliasTy ObjCAliasDecls; |
| |
| /// FieldCollector - Collects CXXFieldDecls during parsing of C++ classes. |
| llvm::OwningPtr<CXXFieldCollector> FieldCollector; |
| |
| IdentifierResolver IdResolver; |
| |
| // Enum values used by KnownFunctionIDs (see below). |
| enum { |
| id_NSLog, |
| id_NSLogv, |
| id_asprintf, |
| id_vasprintf, |
| id_num_known_functions |
| }; |
| |
| /// KnownFunctionIDs - This is a list of IdentifierInfo objects to a set |
| /// of known functions used by the semantic analysis to do various |
| /// kinds of checking (e.g. checking format string errors in printf calls). |
| /// This list is populated upon the creation of a Sema object. |
| IdentifierInfo* KnownFunctionIDs[id_num_known_functions]; |
| |
| /// Translation Unit Scope - useful to Objective-C actions that need |
| /// to lookup file scope declarations in the "ordinary" C decl namespace. |
| /// For example, user-defined classes, built-in "id" type, etc. |
| Scope *TUScope; |
| |
| /// The C++ "std" namespace, where the standard library resides. Cached here |
| /// by GetStdNamespace |
| NamespaceDecl *StdNamespace; |
| |
| /// A flag to remember whether the implicit forms of operator new and delete |
| /// have been declared. |
| bool GlobalNewDeleteDeclared; |
| |
| /// ObjCMethodList - a linked list of methods with different signatures. |
| struct ObjCMethodList { |
| ObjCMethodDecl *Method; |
| ObjCMethodList *Next; |
| |
| ObjCMethodList() { |
| Method = 0; |
| Next = 0; |
| } |
| ObjCMethodList(ObjCMethodDecl *M, ObjCMethodList *C) { |
| Method = M; |
| Next = C; |
| } |
| }; |
| /// Instance/Factory Method Pools - allows efficient lookup when typechecking |
| /// messages to "id". We need to maintain a list, since selectors can have |
| /// differing signatures across classes. In Cocoa, this happens to be |
| /// extremely uncommon (only 1% of selectors are "overloaded"). |
| llvm::DenseMap<Selector, ObjCMethodList> InstanceMethodPool; |
| llvm::DenseMap<Selector, ObjCMethodList> FactoryMethodPool; |
| public: |
| Sema(Preprocessor &pp, ASTContext &ctxt, ASTConsumer &consumer); |
| ~Sema() { |
| if (PackContext) FreePackedContext(); |
| } |
| |
| const LangOptions &getLangOptions() const { return LangOpts; } |
| Diagnostic &getDiagnostics() const { return Diags; } |
| SourceManager &getSourceManager() const { return SourceMgr; } |
| |
| /// The primitive diagnostic helpers. |
| DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID) { |
| return Diags.Report(FullSourceLoc(Loc, SourceMgr), DiagID); |
| } |
| |
| virtual void DeleteExpr(ExprTy *E); |
| virtual void DeleteStmt(StmtTy *S); |
| |
| OwningExprResult Owned(Expr* E) { return OwningExprResult(*this, E); } |
| OwningExprResult Owned(ExprResult R) { |
| if (R.isInvalid()) |
| return ExprError(); |
| return OwningExprResult(*this, R.get()); |
| } |
| OwningStmtResult Owned(Stmt* S) { return OwningStmtResult(*this, S); } |
| |
| virtual void ActOnEndOfTranslationUnit(); |
| |
| //===--------------------------------------------------------------------===// |
| // Type Analysis / Processing: SemaType.cpp. |
| // |
| QualType ConvertDeclSpecToType(const DeclSpec &DS); |
| void ProcessTypeAttributeList(QualType &Result, const AttributeList *AL); |
| QualType GetTypeForDeclarator(Declarator &D, Scope *S, unsigned Skip = 0); |
| DeclarationName GetNameForDeclarator(Declarator &D); |
| |
| QualType ObjCGetTypeForMethodDefinition(DeclTy *D); |
| |
| bool UnwrapSimilarPointerTypes(QualType& T1, QualType& T2); |
| |
| virtual TypeResult ActOnTypeName(Scope *S, Declarator &D); |
| |
| bool DiagnoseIncompleteType(SourceLocation Loc, QualType T, unsigned diag, |
| SourceRange Range1 = SourceRange(), |
| SourceRange Range2 = SourceRange(), |
| QualType PrintType = QualType()); |
| |
| //===--------------------------------------------------------------------===// |
| // Symbol table / Decl tracking callbacks: SemaDecl.cpp. |
| // |
| virtual TypeTy *getTypeName(IdentifierInfo &II, SourceLocation NameLoc, |
| Scope *S, const CXXScopeSpec *SS); |
| virtual DeclTy *ActOnDeclarator(Scope *S, Declarator &D, DeclTy *LastInGroup){ |
| return ActOnDeclarator(S, D, LastInGroup, false); |
| } |
| DeclTy *ActOnDeclarator(Scope *S, Declarator &D, DeclTy *LastInGroup, |
| bool IsFunctionDefinition); |
| NamedDecl* ActOnTypedefDeclarator(Scope* S, Declarator& D, DeclContext* DC, |
| QualType R, Decl* LastDeclarator, |
| Decl* PrevDecl, bool& InvalidDecl, |
| bool &Redeclaration); |
| void InjectLocallyScopedExternalDeclaration(ValueDecl *VD); |
| NamedDecl* ActOnVariableDeclarator(Scope* S, Declarator& D, DeclContext* DC, |
| QualType R, Decl* LastDeclarator, |
| NamedDecl* PrevDecl, bool& InvalidDecl, |
| bool &Redeclaration); |
| NamedDecl* ActOnFunctionDeclarator(Scope* S, Declarator& D, DeclContext* DC, |
| QualType R, Decl *LastDeclarator, |
| NamedDecl* PrevDecl, |
| bool IsFunctionDefinition, |
| bool& InvalidDecl, bool &Redeclaration); |
| virtual DeclTy *ActOnParamDeclarator(Scope *S, Declarator &D); |
| virtual void ActOnParamDefaultArgument(DeclTy *param, |
| SourceLocation EqualLoc, |
| ExprTy *defarg); |
| virtual void ActOnParamUnparsedDefaultArgument(DeclTy *param, |
| SourceLocation EqualLoc); |
| virtual void ActOnParamDefaultArgumentError(DeclTy *param); |
| virtual void AddInitializerToDecl(DeclTy *dcl, ExprArg init); |
| void AddInitializerToDecl(DeclTy *dcl, ExprArg init, bool DirectInit); |
| void ActOnUninitializedDecl(DeclTy *dcl); |
| virtual DeclTy *FinalizeDeclaratorGroup(Scope *S, DeclTy *Group); |
| |
| virtual void ActOnFinishKNRParamDeclarations(Scope *S, Declarator &D); |
| virtual DeclTy *ActOnStartOfFunctionDef(Scope *S, Declarator &D); |
| virtual DeclTy *ActOnStartOfFunctionDef(Scope *S, DeclTy *D); |
| virtual void ObjCActOnStartOfMethodDef(Scope *S, DeclTy *D); |
| |
| virtual DeclTy *ActOnFinishFunctionBody(DeclTy *Decl, StmtArg Body); |
| virtual DeclTy *ActOnFileScopeAsmDecl(SourceLocation Loc, ExprArg expr); |
| |
| /// Scope actions. |
| virtual void ActOnPopScope(SourceLocation Loc, Scope *S); |
| virtual void ActOnTranslationUnitScope(SourceLocation Loc, Scope *S); |
| |
| /// ParsedFreeStandingDeclSpec - This method is invoked when a declspec with |
| /// no declarator (e.g. "struct foo;") is parsed. |
| virtual DeclTy *ParsedFreeStandingDeclSpec(Scope *S, DeclSpec &DS); |
| |
| bool InjectAnonymousStructOrUnionMembers(Scope *S, DeclContext *Owner, |
| RecordDecl *AnonRecord); |
| virtual DeclTy *BuildAnonymousStructOrUnion(Scope *S, DeclSpec &DS, |
| RecordDecl *Record); |
| |
| virtual DeclTy *ActOnTag(Scope *S, unsigned TagSpec, TagKind TK, |
| SourceLocation KWLoc, const CXXScopeSpec &SS, |
| IdentifierInfo *Name, SourceLocation NameLoc, |
| AttributeList *Attr); |
| |
| virtual void ActOnDefs(Scope *S, DeclTy *TagD, SourceLocation DeclStart, |
| IdentifierInfo *ClassName, |
| llvm::SmallVectorImpl<DeclTy*> &Decls); |
| virtual DeclTy *ActOnField(Scope *S, DeclTy *TagD, SourceLocation DeclStart, |
| Declarator &D, ExprTy *BitfieldWidth); |
| |
| virtual DeclTy *ActOnIvar(Scope *S, SourceLocation DeclStart, |
| Declarator &D, ExprTy *BitfieldWidth, |
| tok::ObjCKeywordKind visibility); |
| |
| // This is used for both record definitions and ObjC interface declarations. |
| virtual void ActOnFields(Scope* S, |
| SourceLocation RecLoc, DeclTy *TagDecl, |
| DeclTy **Fields, unsigned NumFields, |
| SourceLocation LBrac, SourceLocation RBrac, |
| AttributeList *AttrList); |
| |
| /// ActOnTagStartDefinition - Invoked when we have entered the |
| /// scope of a tag's definition (e.g., for an enumeration, class, |
| /// struct, or union). |
| virtual void ActOnTagStartDefinition(Scope *S, DeclTy *TagDecl); |
| |
| /// ActOnTagFinishDefinition - Invoked once we have finished parsing |
| /// the definition of a tag (enumeration, class, struct, or union). |
| virtual void ActOnTagFinishDefinition(Scope *S, DeclTy *TagDecl); |
| |
| virtual DeclTy *ActOnEnumConstant(Scope *S, DeclTy *EnumDecl, |
| DeclTy *LastEnumConstant, |
| SourceLocation IdLoc, IdentifierInfo *Id, |
| SourceLocation EqualLoc, ExprTy *Val); |
| virtual void ActOnEnumBody(SourceLocation EnumLoc, DeclTy *EnumDecl, |
| DeclTy **Elements, unsigned NumElements); |
| |
| DeclContext *getContainingDC(DeclContext *DC); |
| |
| /// Set the current declaration context until it gets popped. |
| void PushDeclContext(Scope *S, DeclContext *DC); |
| void PopDeclContext(); |
| |
| /// getCurFunctionDecl - If inside of a function body, this returns a pointer |
| /// to the function decl for the function being parsed. If we're currently |
| /// in a 'block', this returns the containing context. |
| FunctionDecl *getCurFunctionDecl(); |
| |
| /// getCurMethodDecl - If inside of a method body, this returns a pointer to |
| /// the method decl for the method being parsed. If we're currently |
| /// in a 'block', this returns the containing context. |
| ObjCMethodDecl *getCurMethodDecl(); |
| |
| /// getCurFunctionOrMethodDecl - Return the Decl for the current ObjC method |
| /// or C function we're in, otherwise return null. If we're currently |
| /// in a 'block', this returns the containing context. |
| NamedDecl *getCurFunctionOrMethodDecl(); |
| |
| /// Add this decl to the scope shadowed decl chains. |
| void PushOnScopeChains(NamedDecl *D, Scope *S); |
| |
| /// isDeclInScope - If 'Ctx' is a function/method, isDeclInScope returns true |
| /// if 'D' is in Scope 'S', otherwise 'S' is ignored and isDeclInScope returns |
| /// true if 'D' belongs to the given declaration context. |
| bool isDeclInScope(Decl *D, DeclContext *Ctx, Scope *S = 0) { |
| return IdResolver.isDeclInScope(D, Ctx, Context, S); |
| } |
| |
| /// Subroutines of ActOnDeclarator(). |
| TypedefDecl *ParseTypedefDecl(Scope *S, Declarator &D, QualType T, |
| Decl *LastDecl); |
| bool MergeTypeDefDecl(TypedefDecl *New, Decl *Old); |
| bool MergeFunctionDecl(FunctionDecl *New, Decl *Old); |
| bool MergeCompatibleFunctionDecls(FunctionDecl *New, FunctionDecl *Old); |
| bool MergeVarDecl(VarDecl *New, Decl *Old); |
| bool MergeCXXFunctionDecl(FunctionDecl *New, FunctionDecl *Old); |
| void CheckForFileScopedRedefinitions(Scope *S, VarDecl *VD); |
| |
| /// C++ Overloading. |
| bool IsOverload(FunctionDecl *New, Decl* OldD, |
| OverloadedFunctionDecl::function_iterator &MatchedDecl); |
| ImplicitConversionSequence |
| TryImplicitConversion(Expr* From, QualType ToType, |
| bool SuppressUserConversions = false, |
| bool AllowExplicit = false); |
| bool IsStandardConversion(Expr *From, QualType ToType, |
| StandardConversionSequence& SCS); |
| bool IsIntegralPromotion(Expr *From, QualType FromType, QualType ToType); |
| bool IsFloatingPointPromotion(QualType FromType, QualType ToType); |
| bool IsComplexPromotion(QualType FromType, QualType ToType); |
| bool IsPointerConversion(Expr *From, QualType FromType, QualType ToType, |
| QualType& ConvertedType, bool &IncompatibleObjC); |
| bool isObjCPointerConversion(QualType FromType, QualType ToType, |
| QualType& ConvertedType, bool &IncompatibleObjC); |
| bool CheckPointerConversion(Expr *From, QualType ToType); |
| bool IsMemberPointerConversion(Expr *From, QualType FromType, QualType ToType, |
| QualType &ConvertedType); |
| bool CheckMemberPointerConversion(Expr *From, QualType ToType); |
| bool IsQualificationConversion(QualType FromType, QualType ToType); |
| bool IsUserDefinedConversion(Expr *From, QualType ToType, |
| UserDefinedConversionSequence& User, |
| bool AllowConversionFunctions, |
| bool AllowExplicit); |
| |
| ImplicitConversionSequence::CompareKind |
| CompareImplicitConversionSequences(const ImplicitConversionSequence& ICS1, |
| const ImplicitConversionSequence& ICS2); |
| |
| ImplicitConversionSequence::CompareKind |
| CompareStandardConversionSequences(const StandardConversionSequence& SCS1, |
| const StandardConversionSequence& SCS2); |
| |
| ImplicitConversionSequence::CompareKind |
| CompareQualificationConversions(const StandardConversionSequence& SCS1, |
| const StandardConversionSequence& SCS2); |
| |
| ImplicitConversionSequence::CompareKind |
| CompareDerivedToBaseConversions(const StandardConversionSequence& SCS1, |
| const StandardConversionSequence& SCS2); |
| |
| ImplicitConversionSequence |
| TryCopyInitialization(Expr* From, QualType ToType, |
| bool SuppressUserConversions = false); |
| bool PerformCopyInitialization(Expr *&From, QualType ToType, |
| const char *Flavor); |
| |
| ImplicitConversionSequence |
| TryObjectArgumentInitialization(Expr *From, CXXMethodDecl *Method); |
| bool PerformObjectArgumentInitialization(Expr *&From, CXXMethodDecl *Method); |
| |
| ImplicitConversionSequence TryContextuallyConvertToBool(Expr *From); |
| bool PerformContextuallyConvertToBool(Expr *&From); |
| |
| /// OverloadingResult - Capture the result of performing overload |
| /// resolution. |
| enum OverloadingResult { |
| OR_Success, ///< Overload resolution succeeded. |
| OR_No_Viable_Function, ///< No viable function found. |
| OR_Ambiguous, ///< Ambiguous candidates found. |
| OR_Deleted ///< Overload resoltuion refers to a deleted function. |
| }; |
| |
| void AddOverloadCandidate(FunctionDecl *Function, |
| Expr **Args, unsigned NumArgs, |
| OverloadCandidateSet& CandidateSet, |
| bool SuppressUserConversions = false); |
| void AddMethodCandidate(CXXMethodDecl *Method, |
| Expr *Object, Expr **Args, unsigned NumArgs, |
| OverloadCandidateSet& CandidateSet, |
| bool SuppressUserConversions = false); |
| void AddConversionCandidate(CXXConversionDecl *Conversion, |
| Expr *From, QualType ToType, |
| OverloadCandidateSet& CandidateSet); |
| void AddSurrogateCandidate(CXXConversionDecl *Conversion, |
| const FunctionTypeProto *Proto, |
| Expr *Object, Expr **Args, unsigned NumArgs, |
| OverloadCandidateSet& CandidateSet); |
| bool AddOperatorCandidates(OverloadedOperatorKind Op, Scope *S, |
| SourceLocation OpLoc, |
| Expr **Args, unsigned NumArgs, |
| OverloadCandidateSet& CandidateSet, |
| SourceRange OpRange = SourceRange()); |
| void AddBuiltinCandidate(QualType ResultTy, QualType *ParamTys, |
| Expr **Args, unsigned NumArgs, |
| OverloadCandidateSet& CandidateSet, |
| bool IsAssignmentOperator = false, |
| unsigned NumContextualBoolArguments = 0); |
| void AddBuiltinOperatorCandidates(OverloadedOperatorKind Op, |
| Expr **Args, unsigned NumArgs, |
| OverloadCandidateSet& CandidateSet); |
| void AddArgumentDependentLookupCandidates(DeclarationName Name, |
| Expr **Args, unsigned NumArgs, |
| OverloadCandidateSet& CandidateSet); |
| bool isBetterOverloadCandidate(const OverloadCandidate& Cand1, |
| const OverloadCandidate& Cand2); |
| OverloadingResult BestViableFunction(OverloadCandidateSet& CandidateSet, |
| OverloadCandidateSet::iterator& Best); |
| void PrintOverloadCandidates(OverloadCandidateSet& CandidateSet, |
| bool OnlyViable); |
| |
| FunctionDecl *ResolveAddressOfOverloadedFunction(Expr *From, QualType ToType, |
| bool Complain); |
| void FixOverloadedFunctionReference(Expr *E, FunctionDecl *Fn); |
| |
| FunctionDecl *ResolveOverloadedCallFn(Expr *Fn, NamedDecl *Callee, |
| DeclarationName UnqualifiedName, |
| SourceLocation LParenLoc, |
| Expr **Args, unsigned NumArgs, |
| SourceLocation *CommaLocs, |
| SourceLocation RParenLoc, |
| bool &ArgumentDependentLookup); |
| ExprResult |
| BuildCallToMemberFunction(Scope *S, Expr *MemExpr, |
| SourceLocation LParenLoc, Expr **Args, |
| unsigned NumArgs, SourceLocation *CommaLocs, |
| SourceLocation RParenLoc); |
| ExprResult |
| BuildCallToObjectOfClassType(Scope *S, Expr *Object, SourceLocation LParenLoc, |
| Expr **Args, unsigned NumArgs, |
| SourceLocation *CommaLocs, |
| SourceLocation RParenLoc); |
| |
| ExprResult BuildOverloadedArrowExpr(Scope *S, Expr *Base, SourceLocation OpLoc, |
| SourceLocation MemberLoc, |
| IdentifierInfo &Member); |
| |
| /// Helpers for dealing with function parameters. |
| bool CheckParmsForFunctionDef(FunctionDecl *FD); |
| void CheckCXXDefaultArguments(FunctionDecl *FD); |
| void CheckExtraCXXDefaultArguments(Declarator &D); |
| |
| Scope *getNonFieldDeclScope(Scope *S); |
| |
| /// \name Name lookup |
| /// |
| /// These routines provide name lookup that is used during semantic |
| /// analysis to resolve the various kinds of names (identifiers, |
| /// overloaded operator names, constructor names, etc.) into zero or |
| /// more declarations within a particular scope. The major entry |
| /// points are LookupName, which performs unqualified name lookup, |
| /// and LookupQualifiedName, which performs qualified name lookup. |
| /// |
| /// All name lookup is performed based on some specific criteria, |
| /// which specify what names will be visible to name lookup and how |
| /// far name lookup should work. These criteria are important both |
| /// for capturing language semantics (certain lookups will ignore |
| /// certain names, for example) and for performance, since name |
| /// lookup is often a bottleneck in the compilation of C++. Name |
| /// lookup criteria is specified via the LookupCriteria enumeration. |
| /// |
| /// The results of name lookup can vary based on the kind of name |
| /// lookup performed, the current language, and the translation |
| /// unit. In C, for example, name lookup will either return nothing |
| /// (no entity found) or a single declaration. In C++, name lookup |
| /// can additionally refer to a set of overloaded functions or |
| /// result in an ambiguity. All of the possible results of name |
| /// lookup are captured by the LookupResult class, which provides |
| /// the ability to distinguish among them. |
| //@{ |
| |
| /// @brief Describes the kind of name lookup to perform. |
| enum LookupNameKind { |
| /// Ordinary name lookup, which finds ordinary names (functions, |
| /// variables, typedefs, etc.) in C and most kinds of names |
| /// (functions, variables, members, types, etc.) in C++. |
| LookupOrdinaryName = 0, |
| /// Tag name lookup, which finds the names of enums, classes, |
| /// structs, and unions. |
| LookupTagName, |
| /// Member name lookup, which finds the names of |
| /// class/struct/union members. |
| LookupMemberName, |
| // Look up of an operator name (e.g., operator+) for use with |
| // operator overloading. This lookup is similar to ordinary name |
| // lookup, but will ignore any declarations that are class |
| // members. |
| LookupOperatorName, |
| /// Look up of a name that precedes the '::' scope resolution |
| /// operator in C++. This lookup completely ignores operator, |
| /// function, and enumerator names (C++ [basic.lookup.qual]p1). |
| LookupNestedNameSpecifierName, |
| /// Look up a namespace name within a C++ using directive or |
| /// namespace alias definition, ignoring non-namespace names (C++ |
| /// [basic.lookup.udir]p1). |
| LookupNamespaceName, |
| // Look up an ordinary name that is going to be redeclared as a |
| // name with linkage. This lookup ignores any declarations that |
| // are outside of the current scope unless they have linkage. See |
| // C99 6.2.2p4-5 and C++ [basic.link]p6. |
| LookupRedeclarationWithLinkage |
| }; |
| |
| /// @brief Represents the results of name lookup. |
| /// |
| /// An instance of the LookupResult class captures the results of a |
| /// single name lookup, which can return no result (nothing found), |
| /// a single declaration, a set of overloaded functions, or an |
| /// ambiguity. Use the getKind() method to determine which of these |
| /// results occurred for a given lookup. |
| /// |
| /// Any non-ambiguous lookup can be converted into a single |
| /// (possibly NULL) @c NamedDecl* via a conversion function or the |
| /// getAsDecl() method. This conversion permits the common-case |
| /// usage in C and Objective-C where name lookup will always return |
| /// a single declaration. |
| struct LookupResult { |
| /// The kind of entity that is actually stored within the |
| /// LookupResult object. |
| enum { |
| /// First is a single declaration (a NamedDecl*), which may be NULL. |
| SingleDecl, |
| |
| /// First is a single declaration (an OverloadedFunctionDecl*). |
| OverloadedDeclSingleDecl, |
| |
| /// [First, Last) is an iterator range represented as opaque |
| /// pointers used to reconstruct IdentifierResolver::iterators. |
| OverloadedDeclFromIdResolver, |
| |
| /// [First, Last) is an iterator range represented as opaque |
| /// pointers used to reconstruct DeclContext::lookup_iterators. |
| OverloadedDeclFromDeclContext, |
| |
| /// First is a pointer to a BasePaths structure, which is owned |
| /// by the LookupResult. Last is non-zero to indicate that the |
| /// ambiguity is caused by two names found in base class |
| /// subobjects of different types. |
| AmbiguousLookupStoresBasePaths, |
| |
| /// [First, Last) is an iterator range represented as opaque |
| /// pointers used to reconstruct new'ed Decl*[] array containing |
| /// found ambiguous decls. LookupResult is owner of this array. |
| AmbiguousLookupStoresDecls |
| |
| } StoredKind; |
| |
| /// The first lookup result, whose contents depend on the kind of |
| /// lookup result. This may be a NamedDecl* (if StoredKind == |
| /// SingleDecl), OverloadedFunctionDecl* (if StoredKind == |
| /// OverloadedDeclSingleDecl), the opaque pointer from an |
| /// IdentifierResolver::iterator (if StoredKind == |
| /// OverloadedDeclFromIdResolver), a DeclContext::lookup_iterator |
| /// (if StoredKind == OverloadedDeclFromDeclContext), or a |
| /// BasePaths pointer (if StoredKind == AmbiguousLookupStoresBasePaths). |
| mutable uintptr_t First; |
| |
| /// The last lookup result, whose contents depend on the kind of |
| /// lookup result. This may be unused (if StoredKind == |
| /// SingleDecl), it may have the same type as First (for |
| /// overloaded function declarations), or is may be used as a |
| /// Boolean value (if StoredKind == AmbiguousLookupStoresBasePaths). |
| mutable uintptr_t Last; |
| |
| /// Context - The context in which we will build any |
| /// OverloadedFunctionDecl nodes needed by the conversion to |
| /// Decl*. |
| ASTContext *Context; |
| |
| /// @brief The kind of entity found by name lookup. |
| enum LookupKind { |
| /// @brief No entity found met the criteria. |
| NotFound = 0, |
| |
| /// @brief Name lookup found a single declaration that met the |
| /// criteria. getAsDecl will return this declaration. |
| Found, |
| |
| /// @brief Name lookup found a set of overloaded functions that |
| /// met the criteria. getAsDecl will turn this set of overloaded |
| /// functions into an OverloadedFunctionDecl. |
| FoundOverloaded, |
| |
| /// Name lookup results in an ambiguity because multiple |
| /// entities that meet the lookup criteria were found in |
| /// subobjects of different types. For example: |
| /// @code |
| /// struct A { void f(int); } |
| /// struct B { void f(double); } |
| /// struct C : A, B { }; |
| /// void test(C c) { |
| /// c.f(0); // error: A::f and B::f come from subobjects of different |
| /// // types. overload resolution is not performed. |
| /// } |
| /// @endcode |
| AmbiguousBaseSubobjectTypes, |
| |
| /// Name lookup results in an ambiguity because multiple |
| /// nonstatic entities that meet the lookup criteria were found |
| /// in different subobjects of the same type. For example: |
| /// @code |
| /// struct A { int x; }; |
| /// struct B : A { }; |
| /// struct C : A { }; |
| /// struct D : B, C { }; |
| /// int test(D d) { |
| /// return d.x; // error: 'x' is found in two A subobjects (of B and C) |
| /// } |
| /// @endcode |
| AmbiguousBaseSubobjects, |
| |
| /// Name lookup results in an ambiguity because multiple definitions |
| /// of entity that meet the lookup criteria were found in different |
| /// declaration contexts. |
| /// @code |
| /// namespace A { |
| /// int i; |
| /// namespace B { int i; } |
| /// int test() { |
| /// using namespace B; |
| /// return i; // error 'i' is found in namespace A and A::B |
| /// } |
| /// } |
| /// @endcode |
| AmbiguousReference |
| }; |
| |
| static LookupResult CreateLookupResult(ASTContext &Context, NamedDecl *D); |
| |
| static LookupResult CreateLookupResult(ASTContext &Context, |
| IdentifierResolver::iterator F, |
| IdentifierResolver::iterator L); |
| |
| static LookupResult CreateLookupResult(ASTContext &Context, |
| DeclContext::lookup_iterator F, |
| DeclContext::lookup_iterator L); |
| |
| static LookupResult CreateLookupResult(ASTContext &Context, BasePaths *Paths, |
| bool DifferentSubobjectTypes) { |
| LookupResult Result; |
| Result.StoredKind = AmbiguousLookupStoresBasePaths; |
| Result.First = reinterpret_cast<uintptr_t>(Paths); |
| Result.Last = DifferentSubobjectTypes? 1 : 0; |
| Result.Context = &Context; |
| return Result; |
| } |
| |
| template <typename Iterator> |
| static LookupResult CreateLookupResult(ASTContext &Context, |
| Iterator B, std::size_t Len) { |
| NamedDecl ** Array = new NamedDecl*[Len]; |
| for (std::size_t Idx = 0; Idx < Len; ++Idx, ++B) |
| Array[Idx] = *B; |
| LookupResult Result; |
| Result.StoredKind = AmbiguousLookupStoresDecls; |
| Result.First = reinterpret_cast<uintptr_t>(Array); |
| Result.Last = reinterpret_cast<uintptr_t>(Array + Len); |
| Result.Context = &Context; |
| return Result; |
| } |
| |
| LookupKind getKind() const; |
| |
| /// @brief Determine whether name look found something. |
| operator bool() const { return getKind() != NotFound; } |
| |
| /// @brief Determines whether the lookup resulted in an ambiguity. |
| bool isAmbiguous() const { |
| return StoredKind == AmbiguousLookupStoresBasePaths || |
| StoredKind == AmbiguousLookupStoresDecls; |
| } |
| |
| /// @brief Allows conversion of a lookup result into a |
| /// declaration, with the same behavior as getAsDecl. |
| operator NamedDecl*() const { return getAsDecl(); } |
| |
| NamedDecl* getAsDecl() const; |
| |
| BasePaths *getBasePaths() const; |
| |
| /// \brief Iterate over the results of name lookup. |
| /// |
| /// The @c iterator class provides iteration over the results of a |
| /// non-ambiguous name lookup. |
| class iterator { |
| /// The LookupResult structure we're iterating through. |
| LookupResult *Result; |
| |
| /// The current position of this iterator within the sequence of |
| /// results. This value will have the same representation as the |
| /// @c First field in the LookupResult structure. |
| mutable uintptr_t Current; |
| |
| public: |
| typedef NamedDecl * value_type; |
| typedef NamedDecl * reference; |
| typedef NamedDecl * pointer; |
| typedef std::ptrdiff_t difference_type; |
| typedef std::forward_iterator_tag iterator_category; |
| |
| iterator() : Result(0), Current(0) { } |
| |
| iterator(LookupResult *Res, uintptr_t Cur) : Result(Res), Current(Cur) { } |
| |
| reference operator*() const; |
| |
| pointer operator->() const { return **this; } |
| |
| iterator &operator++(); |
| |
| iterator operator++(int) { |
| iterator tmp(*this); |
| ++(*this); |
| return tmp; |
| } |
| |
| friend inline bool operator==(iterator const& x, iterator const& y) { |
| return x.Current == y.Current; |
| } |
| |
| friend inline bool operator!=(iterator const& x, iterator const& y) { |
| return x.Current != y.Current; |
| } |
| }; |
| friend class iterator; |
| |
| iterator begin(); |
| iterator end(); |
| }; |
| |
| private: |
| typedef llvm::SmallVector<LookupResult, 3> LookupResultsVecTy; |
| |
| std::pair<bool, LookupResult> CppLookupName(Scope *S, DeclarationName Name, |
| LookupNameKind NameKind, |
| bool RedeclarationOnly); |
| |
| public: |
| /// Determines whether D is a suitable lookup result according to the |
| /// lookup criteria. |
| static bool isAcceptableLookupResult(NamedDecl *D, LookupNameKind NameKind, |
| unsigned IDNS) { |
| switch (NameKind) { |
| case Sema::LookupOrdinaryName: |
| case Sema::LookupTagName: |
| case Sema::LookupMemberName: |
| case Sema::LookupRedeclarationWithLinkage: // FIXME: check linkage, scoping |
| return D->isInIdentifierNamespace(IDNS); |
| |
| case Sema::LookupOperatorName: |
| return D->isInIdentifierNamespace(IDNS) && |
| !D->getDeclContext()->isRecord(); |
| |
| case Sema::LookupNestedNameSpecifierName: |
| return isa<TypedefDecl>(D) || D->isInIdentifierNamespace(Decl::IDNS_Tag); |
| |
| case Sema::LookupNamespaceName: |
| return isa<NamespaceDecl>(D); |
| } |
| |
| assert(false && |
| "isAcceptableLookupResult always returns before this point"); |
| return false; |
| } |
| |
| LookupResult LookupName(Scope *S, DeclarationName Name, |
| LookupNameKind NameKind, |
| bool RedeclarationOnly = false, |
| bool AllowBuiltinCreation = true, |
| SourceLocation Loc = SourceLocation()); |
| LookupResult LookupQualifiedName(DeclContext *LookupCtx, DeclarationName Name, |
| LookupNameKind NameKind, |
| bool RedeclarationOnly = false); |
| LookupResult LookupParsedName(Scope *S, const CXXScopeSpec *SS, |
| DeclarationName Name, |
| LookupNameKind NameKind, |
| bool RedeclarationOnly = false, |
| bool AllowBuiltinCreation = true, |
| SourceLocation Loc = SourceLocation()); |
| |
| typedef llvm::SmallPtrSet<NamespaceDecl *, 16> AssociatedNamespaceSet; |
| typedef llvm::SmallPtrSet<CXXRecordDecl *, 16> AssociatedClassSet; |
| |
| void FindAssociatedClassesAndNamespaces(Expr **Args, unsigned NumArgs, |
| AssociatedNamespaceSet &AssociatedNamespaces, |
| AssociatedClassSet &AssociatedClasses); |
| |
| bool DiagnoseAmbiguousLookup(LookupResult &Result, DeclarationName Name, |
| SourceLocation NameLoc, |
| SourceRange LookupRange = SourceRange()); |
| //@} |
| |
| ObjCInterfaceDecl *getObjCInterfaceDecl(IdentifierInfo *Id); |
| NamedDecl *LazilyCreateBuiltin(IdentifierInfo *II, unsigned ID, |
| Scope *S, bool ForRedeclaration, |
| SourceLocation Loc); |
| NamedDecl *ImplicitlyDefineFunction(SourceLocation Loc, IdentifierInfo &II, |
| Scope *S); |
| void AddKnownFunctionAttributes(FunctionDecl *FD); |
| |
| // More parsing and symbol table subroutines. |
| |
| // Decl attributes - this routine is the top level dispatcher. |
| void ProcessDeclAttributes(Decl *D, const Declarator &PD); |
| void ProcessDeclAttributeList(Decl *D, const AttributeList *AttrList); |
| |
| void WarnUndefinedMethod(SourceLocation ImpLoc, ObjCMethodDecl *method, |
| bool &IncompleteImpl); |
| void WarnConflictingTypedMethods(ObjCMethodDecl *ImpMethod, |
| ObjCMethodDecl *IntfMethod); |
| |
| NamespaceDecl *GetStdNamespace(); |
| |
| bool isPropertyReadonly(ObjCPropertyDecl *PropertyDecl, |
| ObjCInterfaceDecl *IDecl) const; |
| |
| /// CheckProtocolMethodDefs - This routine checks unimplemented |
| /// methods declared in protocol, and those referenced by it. |
| /// \param IDecl - Used for checking for methods which may have been |
| /// inherited. |
| void CheckProtocolMethodDefs(SourceLocation ImpLoc, |
| ObjCProtocolDecl *PDecl, |
| bool& IncompleteImpl, |
| const llvm::DenseSet<Selector> &InsMap, |
| const llvm::DenseSet<Selector> &ClsMap, |
| ObjCInterfaceDecl *IDecl); |
| |
| /// CheckImplementationIvars - This routine checks if the instance variables |
| /// listed in the implelementation match those listed in the interface. |
| void CheckImplementationIvars(ObjCImplementationDecl *ImpDecl, |
| ObjCIvarDecl **Fields, unsigned nIvars, |
| SourceLocation Loc); |
| |
| /// ImplMethodsVsClassMethods - This is main routine to warn if any method |
| /// remains unimplemented in the @implementation class. |
| void ImplMethodsVsClassMethods(ObjCImplementationDecl* IMPDecl, |
| ObjCInterfaceDecl* IDecl); |
| |
| /// ImplCategoryMethodsVsIntfMethods - Checks that methods declared in the |
| /// category interface is implemented in the category @implementation. |
| void ImplCategoryMethodsVsIntfMethods(ObjCCategoryImplDecl *CatImplDecl, |
| ObjCCategoryDecl *CatClassDecl); |
| /// MatchTwoMethodDeclarations - Checks if two methods' type match and returns |
| /// true, or false, accordingly. |
| bool MatchTwoMethodDeclarations(const ObjCMethodDecl *Method, |
| const ObjCMethodDecl *PrevMethod, |
| bool matchBasedOnSizeAndAlignment = false); |
| |
| /// AddInstanceMethodToGlobalPool - All instance methods in a translation |
| /// unit are added to a global pool. This allows us to efficiently associate |
| /// a selector with a method declaraation for purposes of typechecking |
| /// messages sent to "id" (where the class of the object is unknown). |
| void AddInstanceMethodToGlobalPool(ObjCMethodDecl *Method); |
| |
| /// LookupInstanceMethodInGlobalPool - Returns the method and warns if |
| /// there are multiple signatures. |
| ObjCMethodDecl *LookupInstanceMethodInGlobalPool(Selector Sel, SourceRange R); |
| |
| /// AddFactoryMethodToGlobalPool - Same as above, but for factory methods. |
| void AddFactoryMethodToGlobalPool(ObjCMethodDecl *Method); |
| //===--------------------------------------------------------------------===// |
| // Statement Parsing Callbacks: SemaStmt.cpp. |
| public: |
| virtual OwningStmtResult ActOnExprStmt(ExprArg Expr); |
| |
| virtual OwningStmtResult ActOnNullStmt(SourceLocation SemiLoc); |
| virtual OwningStmtResult ActOnCompoundStmt(SourceLocation L, SourceLocation R, |
| MultiStmtArg Elts, |
| bool isStmtExpr); |
| virtual OwningStmtResult ActOnDeclStmt(DeclTy *Decl, SourceLocation StartLoc, |
| SourceLocation EndLoc); |
| virtual OwningStmtResult ActOnCaseStmt(SourceLocation CaseLoc, ExprArg LHSVal, |
| SourceLocation DotDotDotLoc, ExprArg RHSVal, |
| SourceLocation ColonLoc, StmtArg SubStmt); |
| virtual OwningStmtResult ActOnDefaultStmt(SourceLocation DefaultLoc, |
| SourceLocation ColonLoc, |
| StmtArg SubStmt, Scope *CurScope); |
| virtual OwningStmtResult ActOnLabelStmt(SourceLocation IdentLoc, |
| IdentifierInfo *II, |
| SourceLocation ColonLoc, |
| StmtArg SubStmt); |
| virtual OwningStmtResult ActOnIfStmt(SourceLocation IfLoc, ExprArg CondVal, |
| StmtArg ThenVal, SourceLocation ElseLoc, |
| StmtArg ElseVal); |
| virtual OwningStmtResult ActOnStartOfSwitchStmt(ExprArg Cond); |
| virtual OwningStmtResult ActOnFinishSwitchStmt(SourceLocation SwitchLoc, |
| StmtArg Switch, StmtArg Body); |
| virtual OwningStmtResult ActOnWhileStmt(SourceLocation WhileLoc, ExprArg Cond, |
| StmtArg Body); |
| virtual OwningStmtResult ActOnDoStmt(SourceLocation DoLoc, StmtArg Body, |
| SourceLocation WhileLoc, ExprArg Cond); |
| |
| virtual OwningStmtResult ActOnForStmt(SourceLocation ForLoc, |
| SourceLocation LParenLoc, |
| StmtArg First, ExprArg Second, |
| ExprArg Third, SourceLocation RParenLoc, |
| StmtArg Body); |
| virtual OwningStmtResult ActOnObjCForCollectionStmt(SourceLocation ForColLoc, |
| SourceLocation LParenLoc, |
| StmtArg First, ExprArg Second, |
| SourceLocation RParenLoc, StmtArg Body); |
| |
| virtual OwningStmtResult ActOnGotoStmt(SourceLocation GotoLoc, |
| SourceLocation LabelLoc, |
| IdentifierInfo *LabelII); |
| virtual OwningStmtResult ActOnIndirectGotoStmt(SourceLocation GotoLoc, |
| SourceLocation StarLoc, |
| ExprArg DestExp); |
| virtual OwningStmtResult ActOnContinueStmt(SourceLocation ContinueLoc, |
| Scope *CurScope); |
| virtual OwningStmtResult ActOnBreakStmt(SourceLocation GotoLoc, |
| Scope *CurScope); |
| |
| virtual OwningStmtResult ActOnReturnStmt(SourceLocation ReturnLoc, |
| ExprArg RetValExp); |
| OwningStmtResult ActOnBlockReturnStmt(SourceLocation ReturnLoc, |
| Expr *RetValExp); |
| |
| virtual OwningStmtResult ActOnAsmStmt(SourceLocation AsmLoc, |
| bool IsSimple, |
| bool IsVolatile, |
| unsigned NumOutputs, |
| unsigned NumInputs, |
| std::string *Names, |
| MultiExprArg Constraints, |
| MultiExprArg Exprs, |
| ExprArg AsmString, |
| MultiExprArg Clobbers, |
| SourceLocation RParenLoc); |
| |
| virtual OwningStmtResult ActOnObjCAtCatchStmt(SourceLocation AtLoc, |
| SourceLocation RParen, |
| StmtArg Parm, StmtArg Body, |
| StmtArg CatchList); |
| |
| virtual OwningStmtResult ActOnObjCAtFinallyStmt(SourceLocation AtLoc, |
| StmtArg Body); |
| |
| virtual OwningStmtResult ActOnObjCAtTryStmt(SourceLocation AtLoc, |
| StmtArg Try, |
| StmtArg Catch, StmtArg Finally); |
| |
| virtual OwningStmtResult ActOnObjCAtThrowStmt(SourceLocation AtLoc, |
| ExprArg Throw, |
| Scope *CurScope); |
| virtual OwningStmtResult ActOnObjCAtSynchronizedStmt(SourceLocation AtLoc, |
| ExprArg SynchExpr, |
| StmtArg SynchBody); |
| |
| virtual DeclTy *ActOnExceptionDeclarator(Scope *S, Declarator &D); |
| virtual OwningStmtResult ActOnCXXCatchBlock(SourceLocation CatchLoc, |
| DeclTy *ExDecl, |
| StmtArg HandlerBlock); |
| virtual OwningStmtResult ActOnCXXTryBlock(SourceLocation TryLoc, |
| StmtArg TryBlock, |
| MultiStmtArg Handlers); |
| |
| //===--------------------------------------------------------------------===// |
| // Expression Parsing Callbacks: SemaExpr.cpp. |
| |
| bool DiagnoseUseOfDecl(NamedDecl *D, SourceLocation Loc); |
| |
| // Primary Expressions. |
| virtual OwningExprResult ActOnIdentifierExpr(Scope *S, SourceLocation Loc, |
| IdentifierInfo &II, |
| bool HasTrailingLParen, |
| const CXXScopeSpec *SS = 0, |
| bool isAddressOfOperand = false); |
| virtual OwningExprResult ActOnCXXOperatorFunctionIdExpr(Scope *S, |
| SourceLocation OperatorLoc, |
| OverloadedOperatorKind Op, |
| bool HasTrailingLParen, |
| const CXXScopeSpec &SS, |
| bool isAddressOfOperand); |
| virtual OwningExprResult ActOnCXXConversionFunctionExpr(Scope *S, |
| SourceLocation OperatorLoc, |
| TypeTy *Ty, |
| bool HasTrailingLParen, |
| const CXXScopeSpec &SS, |
| bool isAddressOfOperand); |
| DeclRefExpr *BuildDeclRefExpr(NamedDecl *D, QualType Ty, SourceLocation Loc, |
| bool TypeDependent, bool ValueDependent, |
| const CXXScopeSpec *SS = 0); |
| OwningExprResult |
| BuildAnonymousStructUnionMemberReference(SourceLocation Loc, |
| FieldDecl *Field, |
| Expr *BaseObjectExpr = 0, |
| SourceLocation OpLoc = SourceLocation()); |
| OwningExprResult ActOnDeclarationNameExpr(Scope *S, SourceLocation Loc, |
| DeclarationName Name, |
| bool HasTrailingLParen, |
| const CXXScopeSpec *SS, |
| bool isAddressOfOperand = false); |
| |
| virtual OwningExprResult ActOnPredefinedExpr(SourceLocation Loc, |
| tok::TokenKind Kind); |
| virtual OwningExprResult ActOnNumericConstant(const Token &); |
| virtual OwningExprResult ActOnCharacterConstant(const Token &); |
| virtual OwningExprResult ActOnParenExpr(SourceLocation L, SourceLocation R, |
| ExprArg Val); |
| |
| /// ActOnStringLiteral - The specified tokens were lexed as pasted string |
| /// fragments (e.g. "foo" "bar" L"baz"). |
| virtual OwningExprResult ActOnStringLiteral(const Token *Toks, |
| unsigned NumToks); |
| |
| // Binary/Unary Operators. 'Tok' is the token for the operator. |
| virtual OwningExprResult ActOnUnaryOp(Scope *S, SourceLocation OpLoc, |
| tok::TokenKind Op, ExprArg Input); |
| virtual OwningExprResult |
| ActOnSizeOfAlignOfExpr(SourceLocation OpLoc, bool isSizeof, bool isType, |
| void *TyOrEx, const SourceRange &ArgRange); |
| |
| bool CheckAlignOfExpr(Expr *E, SourceLocation OpLoc, const SourceRange &R); |
| bool CheckSizeOfAlignOfOperand(QualType type, SourceLocation OpLoc, |
| const SourceRange &R, bool isSizeof); |
| |
| virtual OwningExprResult ActOnPostfixUnaryOp(Scope *S, SourceLocation OpLoc, |
| tok::TokenKind Kind, |
| ExprArg Input); |
| |
| virtual OwningExprResult ActOnArraySubscriptExpr(Scope *S, ExprArg Base, |
| SourceLocation LLoc, |
| ExprArg Idx, |
| SourceLocation RLoc); |
| virtual OwningExprResult ActOnMemberReferenceExpr(Scope *S, ExprArg Base, |
| SourceLocation OpLoc, |
| tok::TokenKind OpKind, |
| SourceLocation MemberLoc, |
| IdentifierInfo &Member); |
| bool ConvertArgumentsForCall(CallExpr *Call, Expr *Fn, |
| FunctionDecl *FDecl, |
| const FunctionTypeProto *Proto, |
| Expr **Args, unsigned NumArgs, |
| SourceLocation RParenLoc); |
| |
| /// ActOnCallExpr - Handle a call to Fn with the specified array of arguments. |
| /// This provides the location of the left/right parens and a list of comma |
| /// locations. |
| virtual OwningExprResult ActOnCallExpr(Scope *S, ExprArg Fn, |
| SourceLocation LParenLoc, |
| MultiExprArg Args, |
| SourceLocation *CommaLocs, |
| SourceLocation RParenLoc); |
| |
| virtual OwningExprResult ActOnCastExpr(SourceLocation LParenLoc, TypeTy *Ty, |
| SourceLocation RParenLoc, ExprArg Op); |
| |
| virtual OwningExprResult ActOnCompoundLiteral(SourceLocation LParenLoc, |
| TypeTy *Ty, |
| SourceLocation RParenLoc, |
| ExprArg Op); |
| |
| virtual OwningExprResult ActOnInitList(SourceLocation LParenLoc, |
| MultiExprArg InitList, |
| InitListDesignations &Designators, |
| SourceLocation RParenLoc); |
| |
| virtual OwningExprResult ActOnDesignatedInitializer(Designation &Desig, |
| SourceLocation Loc, |
| bool UsedColonSyntax, |
| OwningExprResult Init); |
| |
| virtual OwningExprResult ActOnBinOp(Scope *S, SourceLocation TokLoc, |
| tok::TokenKind Kind, |
| ExprArg LHS, ExprArg RHS); |
| OwningExprResult CreateBuiltinBinOp(SourceLocation TokLoc, |
| unsigned Opc, Expr *lhs, Expr *rhs); |
| |
| /// ActOnConditionalOp - Parse a ?: operation. Note that 'LHS' may be null |
| /// in the case of a the GNU conditional expr extension. |
| virtual OwningExprResult ActOnConditionalOp(SourceLocation QuestionLoc, |
| SourceLocation ColonLoc, |
| ExprArg Cond, ExprArg LHS, |
| ExprArg RHS); |
| |
| /// ActOnAddrLabel - Parse the GNU address of label extension: "&&foo". |
| virtual ExprResult ActOnAddrLabel(SourceLocation OpLoc, SourceLocation LabLoc, |
| IdentifierInfo *LabelII); |
| |
| virtual ExprResult ActOnStmtExpr(SourceLocation LPLoc, StmtTy *SubStmt, |
| SourceLocation RPLoc); // "({..})" |
| |
| /// __builtin_offsetof(type, a.b[123][456].c) |
| virtual ExprResult ActOnBuiltinOffsetOf(Scope *S, |
| SourceLocation BuiltinLoc, |
| SourceLocation TypeLoc, TypeTy *Arg1, |
| OffsetOfComponent *CompPtr, |
| unsigned NumComponents, |
| SourceLocation RParenLoc); |
| |
| // __builtin_types_compatible_p(type1, type2) |
| virtual ExprResult ActOnTypesCompatibleExpr(SourceLocation BuiltinLoc, |
| TypeTy *arg1, TypeTy *arg2, |
| SourceLocation RPLoc); |
| |
| // __builtin_choose_expr(constExpr, expr1, expr2) |
| virtual ExprResult ActOnChooseExpr(SourceLocation BuiltinLoc, |
| ExprTy *cond, ExprTy *expr1, ExprTy *expr2, |
| SourceLocation RPLoc); |
| |
| // __builtin_va_arg(expr, type) |
| virtual ExprResult ActOnVAArg(SourceLocation BuiltinLoc, |
| ExprTy *expr, TypeTy *type, |
| SourceLocation RPLoc); |
| |
| // __null |
| virtual ExprResult ActOnGNUNullExpr(SourceLocation TokenLoc); |
| |
| //===------------------------- "Block" Extension ------------------------===// |
| |
| /// ActOnBlockStart - This callback is invoked when a block literal is |
| /// started. |
| virtual void ActOnBlockStart(SourceLocation CaretLoc, Scope *CurScope); |
| |
| /// ActOnBlockArguments - This callback allows processing of block arguments. |
| /// If there are no arguments, this is still invoked. |
| virtual void ActOnBlockArguments(Declarator &ParamInfo, Scope *CurScope); |
| |
| /// ActOnBlockError - If there is an error parsing a block, this callback |
| /// is invoked to pop the information about the block from the action impl. |
| virtual void ActOnBlockError(SourceLocation CaretLoc, Scope *CurScope); |
| |
| /// ActOnBlockStmtExpr - This is called when the body of a block statement |
| /// literal was successfully completed. ^(int x){...} |
| virtual ExprResult ActOnBlockStmtExpr(SourceLocation CaretLoc, StmtTy *Body, |
| Scope *CurScope); |
| |
| //===---------------------------- C++ Features --------------------------===// |
| |
| // Act on C++ namespaces |
| virtual DeclTy *ActOnStartNamespaceDef(Scope *S, SourceLocation IdentLoc, |
| IdentifierInfo *Ident, |
| SourceLocation LBrace); |
| virtual void ActOnFinishNamespaceDef(DeclTy *Dcl, SourceLocation RBrace); |
| |
| virtual DeclTy *ActOnUsingDirective(Scope *CurScope, |
| SourceLocation UsingLoc, |
| SourceLocation NamespcLoc, |
| const CXXScopeSpec &SS, |
| SourceLocation IdentLoc, |
| IdentifierInfo *NamespcName, |
| AttributeList *AttrList); |
| |
| void PushUsingDirective(Scope *S, UsingDirectiveDecl *UDir); |
| |
| /// AddCXXDirectInitializerToDecl - This action is called immediately after |
| /// ActOnDeclarator, when a C++ direct initializer is present. |
| /// e.g: "int x(1);" |
| virtual void AddCXXDirectInitializerToDecl(DeclTy *Dcl, |
| SourceLocation LParenLoc, |
| ExprTy **Exprs, unsigned NumExprs, |
| SourceLocation *CommaLocs, |
| SourceLocation RParenLoc); |
| |
| /// InitializationKind - Represents which kind of C++ initialization |
| /// [dcl.init] a routine is to perform. |
| enum InitializationKind { |
| IK_Direct, ///< Direct initialization |
| IK_Copy, ///< Copy initialization |
| IK_Default ///< Default initialization |
| }; |
| |
| CXXConstructorDecl * |
| PerformInitializationByConstructor(QualType ClassType, |
| Expr **Args, unsigned NumArgs, |
| SourceLocation Loc, SourceRange Range, |
| DeclarationName InitEntity, |
| InitializationKind Kind); |
| |
| /// ActOnCXXNamedCast - Parse {dynamic,static,reinterpret,const}_cast's. |
| virtual ExprResult ActOnCXXNamedCast(SourceLocation OpLoc, tok::TokenKind Kind, |
| SourceLocation LAngleBracketLoc, TypeTy *Ty, |
| SourceLocation RAngleBracketLoc, |
| SourceLocation LParenLoc, ExprTy *E, |
| SourceLocation RParenLoc); |
| |
| /// ActOnCXXTypeidOfType - Parse typeid( type-id ). |
| virtual ExprResult ActOnCXXTypeid(SourceLocation OpLoc, |
| SourceLocation LParenLoc, bool isType, |
| void *TyOrExpr, SourceLocation RParenLoc); |
| |
| //// ActOnCXXThis - Parse 'this' pointer. |
| virtual ExprResult ActOnCXXThis(SourceLocation ThisLoc); |
| |
| /// ActOnCXXBoolLiteral - Parse {true,false} literals. |
| virtual ExprResult ActOnCXXBoolLiteral(SourceLocation OpLoc, |
| tok::TokenKind Kind); |
| |
| //// ActOnCXXThrow - Parse throw expressions. |
| virtual ExprResult ActOnCXXThrow(SourceLocation OpLoc, |
| ExprTy *expr); |
| |
| /// ActOnCXXTypeConstructExpr - Parse construction of a specified type. |
| /// Can be interpreted either as function-style casting ("int(x)") |
| /// or class type construction ("ClassType(x,y,z)") |
| /// or creation of a value-initialized type ("int()"). |
| virtual ExprResult ActOnCXXTypeConstructExpr(SourceRange TypeRange, |
| TypeTy *TypeRep, |
| SourceLocation LParenLoc, |
| ExprTy **Exprs, |
| unsigned NumExprs, |
| SourceLocation *CommaLocs, |
| SourceLocation RParenLoc); |
| |
| /// ActOnCXXNew - Parsed a C++ 'new' expression. |
| virtual ExprResult ActOnCXXNew(SourceLocation StartLoc, bool UseGlobal, |
| SourceLocation PlacementLParen, |
| ExprTy **PlacementArgs, unsigned NumPlaceArgs, |
| SourceLocation PlacementRParen, |
| bool ParenTypeId, Declarator &D, |
| SourceLocation ConstructorLParen, |
| ExprTy **ConstructorArgs, unsigned NumConsArgs, |
| SourceLocation ConstructorRParen); |
| bool CheckAllocatedType(QualType AllocType, const Declarator &D); |
| bool FindAllocationFunctions(SourceLocation StartLoc, SourceRange Range, |
| bool UseGlobal, QualType AllocType, bool IsArray, |
| Expr **PlaceArgs, unsigned NumPlaceArgs, |
| FunctionDecl *&OperatorNew, |
| FunctionDecl *&OperatorDelete); |
| bool FindAllocationOverload(SourceLocation StartLoc, SourceRange Range, |
| DeclarationName Name, Expr** Args, |
| unsigned NumArgs, DeclContext *Ctx, |
| bool AllowMissing, FunctionDecl *&Operator); |
| void DeclareGlobalNewDelete(); |
| void DeclareGlobalAllocationFunction(DeclarationName Name, QualType Return, |
| QualType Argument); |
| |
| /// ActOnCXXDelete - Parsed a C++ 'delete' expression |
| virtual ExprResult ActOnCXXDelete(SourceLocation StartLoc, bool UseGlobal, |
| bool ArrayForm, ExprTy *Operand); |
| |
| /// ActOnCXXConditionDeclarationExpr - Parsed a condition declaration of a |
| /// C++ if/switch/while/for statement. |
| /// e.g: "if (int x = f()) {...}" |
| virtual ExprResult ActOnCXXConditionDeclarationExpr(Scope *S, |
| SourceLocation StartLoc, |
| Declarator &D, |
| SourceLocation EqualLoc, |
| ExprTy *AssignExprVal); |
| |
| /// ActOnUnaryTypeTrait - Parsed one of the unary type trait support |
| /// pseudo-functions. |
| virtual OwningExprResult ActOnUnaryTypeTrait(UnaryTypeTrait OTT, |
| SourceLocation KWLoc, |
| SourceLocation LParen, |
| TypeTy *Ty, |
| SourceLocation RParen); |
| |
| /// ActOnCXXGlobalScopeSpecifier - Return the object that represents the |
| /// global scope ('::'). |
| virtual CXXScopeTy *ActOnCXXGlobalScopeSpecifier(Scope *S, |
| SourceLocation CCLoc); |
| |
| /// ActOnCXXNestedNameSpecifier - Called during parsing of a |
| /// nested-name-specifier. e.g. for "foo::bar::" we parsed "foo::" and now |
| /// we want to resolve "bar::". 'SS' is empty or the previously parsed |
| /// nested-name part ("foo::"), 'IdLoc' is the source location of 'bar', |
| /// 'CCLoc' is the location of '::' and 'II' is the identifier for 'bar'. |
| /// Returns a CXXScopeTy* object representing the C++ scope. |
| virtual CXXScopeTy *ActOnCXXNestedNameSpecifier(Scope *S, |
| const CXXScopeSpec &SS, |
| SourceLocation IdLoc, |
| SourceLocation CCLoc, |
| IdentifierInfo &II); |
| |
| /// ActOnCXXEnterDeclaratorScope - Called when a C++ scope specifier (global |
| /// scope or nested-name-specifier) is parsed, part of a declarator-id. |
| /// After this method is called, according to [C++ 3.4.3p3], names should be |
| /// looked up in the declarator-id's scope, until the declarator is parsed and |
| /// ActOnCXXExitDeclaratorScope is called. |
| /// The 'SS' should be a non-empty valid CXXScopeSpec. |
| virtual void ActOnCXXEnterDeclaratorScope(Scope *S, const CXXScopeSpec &SS); |
| |
| /// ActOnCXXExitDeclaratorScope - Called when a declarator that previously |
| /// invoked ActOnCXXEnterDeclaratorScope(), is finished. 'SS' is the same |
| /// CXXScopeSpec that was passed to ActOnCXXEnterDeclaratorScope as well. |
| /// Used to indicate that names should revert to being looked up in the |
| /// defining scope. |
| virtual void ActOnCXXExitDeclaratorScope(Scope *S, const CXXScopeSpec &SS); |
| |
| // ParseObjCStringLiteral - Parse Objective-C string literals. |
| virtual ExprResult ParseObjCStringLiteral(SourceLocation *AtLocs, |
| ExprTy **Strings, |
| unsigned NumStrings); |
| virtual ExprResult ParseObjCEncodeExpression(SourceLocation AtLoc, |
| SourceLocation EncodeLoc, |
| SourceLocation LParenLoc, |
| TypeTy *Ty, |
| SourceLocation RParenLoc); |
| |
| // ParseObjCSelectorExpression - Build selector expression for @selector |
| virtual ExprResult ParseObjCSelectorExpression(Selector Sel, |
| SourceLocation AtLoc, |
| SourceLocation SelLoc, |
| SourceLocation LParenLoc, |
| SourceLocation RParenLoc); |
| |
| // ParseObjCProtocolExpression - Build protocol expression for @protocol |
| virtual ExprResult ParseObjCProtocolExpression(IdentifierInfo * ProtocolName, |
| SourceLocation AtLoc, |
| SourceLocation ProtoLoc, |
| SourceLocation LParenLoc, |
| SourceLocation RParenLoc); |
| |
| //===--------------------------------------------------------------------===// |
| // C++ Declarations |
| // |
| virtual DeclTy *ActOnStartLinkageSpecification(Scope *S, |
| SourceLocation ExternLoc, |
| SourceLocation LangLoc, |
| const char *Lang, |
| unsigned StrSize, |
| SourceLocation LBraceLoc); |
| virtual DeclTy *ActOnFinishLinkageSpecification(Scope *S, |
| DeclTy *LinkageSpec, |
| SourceLocation RBraceLoc); |
| |
| |
| //===--------------------------------------------------------------------===// |
| // C++ Classes |
| // |
| virtual bool isCurrentClassName(const IdentifierInfo &II, Scope *S, |
| const CXXScopeSpec *SS); |
| |
| virtual DeclTy *ActOnCXXMemberDeclarator(Scope *S, AccessSpecifier AS, |
| Declarator &D, ExprTy *BitfieldWidth, |
| ExprTy *Init, DeclTy *LastInGroup); |
| |
| virtual MemInitResult ActOnMemInitializer(DeclTy *ConstructorD, |
| Scope *S, |
| IdentifierInfo *MemberOrBase, |
| SourceLocation IdLoc, |
| SourceLocation LParenLoc, |
| ExprTy **Args, unsigned NumArgs, |
| SourceLocation *CommaLocs, |
| SourceLocation RParenLoc); |
| |
| void AddImplicitlyDeclaredMembersToClass(CXXRecordDecl *ClassDecl); |
| |
| virtual void ActOnFinishCXXMemberSpecification(Scope* S, SourceLocation RLoc, |
| DeclTy *TagDecl, |
| SourceLocation LBrac, |
| SourceLocation RBrac); |
| |
| virtual void ActOnStartDelayedCXXMethodDeclaration(Scope *S, DeclTy *Method); |
| virtual void ActOnDelayedCXXMethodParameter(Scope *S, DeclTy *Param); |
| virtual void ActOnFinishDelayedCXXMethodDeclaration(Scope *S, DeclTy *Method); |
| |
| bool CheckConstructorDeclarator(Declarator &D, QualType &R, |
| FunctionDecl::StorageClass& SC); |
| bool CheckConstructor(CXXConstructorDecl *Constructor); |
| bool CheckDestructorDeclarator(Declarator &D, QualType &R, |
| FunctionDecl::StorageClass& SC); |
| bool CheckConversionDeclarator(Declarator &D, QualType &R, |
| FunctionDecl::StorageClass& SC); |
| DeclTy *ActOnConversionDeclarator(CXXConversionDecl *Conversion); |
| |
| //===--------------------------------------------------------------------===// |
| // C++ Derived Classes |
| // |
| |
| /// ActOnBaseSpecifier - Parsed a base specifier |
| virtual BaseResult ActOnBaseSpecifier(DeclTy *classdecl, |
| SourceRange SpecifierRange, |
| bool Virtual, AccessSpecifier Access, |
| TypeTy *basetype, SourceLocation BaseLoc); |
| |
| virtual void ActOnBaseSpecifiers(DeclTy *ClassDecl, BaseTy **Bases, |
| unsigned NumBases); |
| |
| bool IsDerivedFrom(QualType Derived, QualType Base); |
| bool IsDerivedFrom(QualType Derived, QualType Base, BasePaths &Paths); |
| bool LookupInBases(CXXRecordDecl *Class, const MemberLookupCriteria& Criteria, |
| BasePaths &Paths); |
| bool CheckDerivedToBaseConversion(QualType Derived, QualType Base, |
| SourceLocation Loc, SourceRange Range); |
| std::string getAmbiguousPathsDisplayString(BasePaths &Paths); |
| |
| //===--------------------------------------------------------------------===// |
| // C++ Overloaded Operators [C++ 13.5] |
| // |
| |
| bool CheckOverloadedOperatorDeclaration(FunctionDecl *FnDecl); |
| |
| //===--------------------------------------------------------------------===// |
| // C++ Templates [C++ 14] |
| // |
| virtual TemplateNameKind isTemplateName(IdentifierInfo &II, Scope *S, |
| DeclTy *&TemplateDecl, |
| const CXXScopeSpec *SS = 0); |
| bool DiagnoseTemplateParameterShadow(SourceLocation Loc, Decl *PrevDecl); |
| TemplateDecl *AdjustDeclIfTemplate(DeclTy *&Decl); |
| |
| virtual DeclTy *ActOnTypeParameter(Scope *S, bool Typename, |
| SourceLocation KeyLoc, |
| IdentifierInfo *ParamName, |
| SourceLocation ParamNameLoc, |
| unsigned Depth, unsigned Position); |
| virtual void ActOnTypeParameterDefault(DeclTy *TypeParam, |
| SourceLocation EqualLoc, |
| SourceLocation DefaultLoc, |
| TypeTy *Default); |
| |
| virtual DeclTy *ActOnNonTypeTemplateParameter(Scope *S, Declarator &D, |
| unsigned Depth, |
| unsigned Position); |
| virtual void ActOnNonTypeTemplateParameterDefault(DeclTy *TemplateParam, |
| SourceLocation EqualLoc, |
| ExprArg Default); |
| virtual DeclTy *ActOnTemplateTemplateParameter(Scope *S, |
| SourceLocation TmpLoc, |
| TemplateParamsTy *Params, |
| IdentifierInfo *ParamName, |
| SourceLocation ParamNameLoc, |
| unsigned Depth, |
| unsigned Position); |
| virtual void ActOnTemplateTemplateParameterDefault(DeclTy *TemplateParam, |
| SourceLocation EqualLoc, |
| ExprArg Default); |
| |
| virtual TemplateParamsTy * |
| ActOnTemplateParameterList(unsigned Depth, |
| SourceLocation ExportLoc, |
| SourceLocation TemplateLoc, |
| SourceLocation LAngleLoc, |
| DeclTy **Params, unsigned NumParams, |
| SourceLocation RAngleLoc); |
| bool CheckTemplateParameterList(TemplateParameterList *NewParams, |
| TemplateParameterList *OldParams); |
| |
| virtual DeclTy * |
| ActOnClassTemplate(Scope *S, unsigned TagSpec, TagKind TK, |
| SourceLocation KWLoc, const CXXScopeSpec &SS, |
| IdentifierInfo *Name, SourceLocation NameLoc, |
| AttributeList *Attr, |
| MultiTemplateParamsArg TemplateParameterLists); |
| |
| virtual TypeResult |
| ActOnClassTemplateId(DeclTy *Template, SourceLocation TemplateLoc, |
| SourceLocation LAngleLoc, |
| ASTTemplateArgsPtr TemplateArgs, |
| SourceLocation *TemplateArgLocs, |
| SourceLocation RAngleLoc, |
| const CXXScopeSpec *SS); |
| |
| virtual DeclTy * |
| ActOnClassTemplateSpecialization(Scope *S, unsigned TagSpec, TagKind TK, |
| SourceLocation KWLoc, |
| const CXXScopeSpec &SS, |
| DeclTy *Template, |
| SourceLocation TemplateNameLoc, |
| SourceLocation LAngleLoc, |
| ASTTemplateArgsPtr TemplateArgs, |
| SourceLocation *TemplateArgLocs, |
| SourceLocation RAngleLoc, |
| AttributeList *Attr, |
| MultiTemplateParamsArg TemplateParameterLists); |
| |
| bool CheckTemplateArgumentList(TemplateDecl *Template, |
| SourceLocation TemplateLoc, |
| SourceLocation LAngleLoc, |
| ASTTemplateArgsPtr& TemplateArgs, |
| SourceLocation *TemplateArgLocs, |
| SourceLocation RAngleLoc, |
| llvm::SmallVectorImpl<TemplateArgument> &Converted); |
| |
| bool CheckTemplateArgument(TemplateTypeParmDecl *Param, QualType Arg, |
| SourceLocation ArgLoc); |
| bool CheckTemplateArgumentAddressOfObjectOrFunction(Expr *Arg, |
| NamedDecl *&Entity); |
| bool CheckTemplateArgumentPointerToMember(Expr *Arg, NamedDecl *&Member); |
| bool CheckTemplateArgument(NonTypeTemplateParmDecl *Param, Expr *&Arg, |
| llvm::SmallVectorImpl<TemplateArgument> *Converted = 0); |
| bool CheckTemplateArgument(TemplateTemplateParmDecl *Param, DeclRefExpr *Arg); |
| bool TemplateParameterListsAreEqual(TemplateParameterList *New, |
| TemplateParameterList *Old, |
| bool Complain, |
| bool IsTemplateTemplateParm = false, |
| SourceLocation TemplateArgLoc |
| = SourceLocation()); |
| |
| bool CheckTemplateDeclScope(Scope *S, |
| MultiTemplateParamsArg &TemplateParameterLists); |
| |
| // Objective-C declarations. |
| virtual DeclTy *ActOnStartClassInterface(SourceLocation AtInterfaceLoc, |
| IdentifierInfo *ClassName, |
| SourceLocation ClassLoc, |
| IdentifierInfo *SuperName, |
| SourceLocation SuperLoc, |
| DeclTy * const *ProtoRefs, |
| unsigned NumProtoRefs, |
| SourceLocation EndProtoLoc, |
| AttributeList *AttrList); |
| |
| virtual DeclTy *ActOnCompatiblityAlias( |
| SourceLocation AtCompatibilityAliasLoc, |
| IdentifierInfo *AliasName, SourceLocation AliasLocation, |
| IdentifierInfo *ClassName, SourceLocation ClassLocation); |
| |
| virtual DeclTy *ActOnStartProtocolInterface( |
| SourceLocation AtProtoInterfaceLoc, |
| IdentifierInfo *ProtocolName, SourceLocation ProtocolLoc, |
| DeclTy * const *ProtoRefNames, unsigned NumProtoRefs, |
| SourceLocation EndProtoLoc, |
| AttributeList *AttrList); |
| |
| virtual DeclTy *ActOnStartCategoryInterface(SourceLocation AtInterfaceLoc, |
| IdentifierInfo *ClassName, |
| SourceLocation ClassLoc, |
| IdentifierInfo *CategoryName, |
| SourceLocation CategoryLoc, |
| DeclTy * const *ProtoRefs, |
| unsigned NumProtoRefs, |
| SourceLocation EndProtoLoc); |
| |
| virtual DeclTy *ActOnStartClassImplementation( |
| SourceLocation AtClassImplLoc, |
| IdentifierInfo *ClassName, SourceLocation ClassLoc, |
| IdentifierInfo *SuperClassname, |
| SourceLocation SuperClassLoc); |
| |
| virtual DeclTy *ActOnStartCategoryImplementation( |
| SourceLocation AtCatImplLoc, |
| IdentifierInfo *ClassName, |
| SourceLocation ClassLoc, |
| IdentifierInfo *CatName, |
| SourceLocation CatLoc); |
| |
| virtual DeclTy *ActOnForwardClassDeclaration(SourceLocation Loc, |
| IdentifierInfo **IdentList, |
| unsigned NumElts); |
| |
| virtual DeclTy *ActOnForwardProtocolDeclaration(SourceLocation AtProtocolLoc, |
| const IdentifierLocPair *IdentList, |
| unsigned NumElts, |
| AttributeList *attrList); |
| |
| virtual void FindProtocolDeclaration(bool WarnOnDeclarations, |
| const IdentifierLocPair *ProtocolId, |
| unsigned NumProtocols, |
| llvm::SmallVectorImpl<DeclTy *> &Protocols); |
| |
| /// Ensure attributes are consistent with type. |
| /// \param [in, out] Attributes The attributes to check; they will |
| /// be modified to be consistent with \arg PropertyTy. |
| void CheckObjCPropertyAttributes(QualType PropertyTy, |
| SourceLocation Loc, |
| unsigned &Attributes); |
| void ProcessPropertyDecl(ObjCPropertyDecl *property, ObjCContainerDecl *DC); |
| void DiagnosePropertyMismatch(ObjCPropertyDecl *Property, |
| ObjCPropertyDecl *SuperProperty, |
| const IdentifierInfo *Name); |
| void ComparePropertiesInBaseAndSuper(ObjCInterfaceDecl *IDecl); |
| |
| void MergeProtocolPropertiesIntoClass(Decl *CDecl, |
| DeclTy *MergeProtocols); |
| |
| void MergeOneProtocolPropertiesIntoClass(Decl *CDecl, |
| ObjCProtocolDecl *PDecl); |
| |
| virtual void ActOnAtEnd(SourceLocation AtEndLoc, DeclTy *classDecl, |
| DeclTy **allMethods = 0, unsigned allNum = 0, |
| DeclTy **allProperties = 0, unsigned pNum = 0); |
| |
| virtual DeclTy *ActOnProperty(Scope *S, SourceLocation AtLoc, |
| FieldDeclarator &FD, ObjCDeclSpec &ODS, |
| Selector GetterSel, Selector SetterSel, |
| DeclTy *ClassCategory, bool *OverridingProperty, |
| tok::ObjCKeywordKind MethodImplKind); |
| |
| virtual DeclTy *ActOnPropertyImplDecl(SourceLocation AtLoc, |
| SourceLocation PropertyLoc, |
| bool ImplKind, DeclTy *ClassImplDecl, |
| IdentifierInfo *PropertyId, |
| IdentifierInfo *PropertyIvar); |
| |
| virtual DeclTy *ActOnMethodDeclaration( |
| SourceLocation BeginLoc, // location of the + or -. |
| SourceLocation EndLoc, // location of the ; or {. |
| tok::TokenKind MethodType, |
| DeclTy *ClassDecl, ObjCDeclSpec &ReturnQT, TypeTy *ReturnType, |
| Selector Sel, |
| // optional arguments. The number of types/arguments is obtained |
| // from the Sel.getNumArgs(). |
| ObjCDeclSpec *ArgQT, TypeTy **ArgTypes, IdentifierInfo **ArgNames, |
| llvm::SmallVectorImpl<Declarator> &Cdecls, |
| AttributeList *AttrList, tok::ObjCKeywordKind MethodImplKind, |
| bool isVariadic = false); |
| |
| // ActOnClassMessage - used for both unary and keyword messages. |
| // ArgExprs is optional - if it is present, the number of expressions |
| // is obtained from NumArgs. |
| virtual ExprResult ActOnClassMessage( |
| Scope *S, |
| IdentifierInfo *receivingClassName, Selector Sel, SourceLocation lbrac, |
| SourceLocation receiverLoc, SourceLocation selectorLoc,SourceLocation rbrac, |
| ExprTy **ArgExprs, unsigned NumArgs); |
| |
| // ActOnInstanceMessage - used for both unary and keyword messages. |
| // ArgExprs is optional - if it is present, the number of expressions |
| // is obtained from NumArgs. |
| virtual ExprResult ActOnInstanceMessage( |
| ExprTy *receiver, Selector Sel, |
| SourceLocation lbrac, SourceLocation receiverLoc, SourceLocation rbrac, |
| ExprTy **ArgExprs, unsigned NumArgs); |
| |
| /// ActOnPragmaPack - Called on well formed #pragma pack(...). |
| virtual void ActOnPragmaPack(PragmaPackKind Kind, |
| IdentifierInfo *Name, |
| ExprTy *Alignment, |
| SourceLocation PragmaLoc, |
| SourceLocation LParenLoc, |
| SourceLocation RParenLoc); |
| |
| /// getPragmaPackAlignment() - Return the current alignment as specified by |
| /// the current #pragma pack directive, or 0 if none is currently active. |
| unsigned getPragmaPackAlignment() const; |
| |
| /// FreePackedContext - Deallocate and null out PackContext. |
| void FreePackedContext(); |
| |
| /// ImpCastExprToType - If Expr is not of type 'Type', insert an implicit |
| /// cast. If there is already an implicit cast, merge into the existing one. |
| /// If isLvalue, the result of the cast is an lvalue. |
| void ImpCastExprToType(Expr *&Expr, QualType Type, bool isLvalue = false); |
| |
| // UsualUnaryConversions - promotes integers (C99 6.3.1.1p2) and converts |
| // functions and arrays to their respective pointers (C99 6.3.2.1). |
| Expr *UsualUnaryConversions(Expr *&expr); |
| |
| // DefaultFunctionArrayConversion - converts functions and arrays |
| // to their respective pointers (C99 6.3.2.1). |
| void DefaultFunctionArrayConversion(Expr *&expr); |
| |
| // DefaultArgumentPromotion (C99 6.5.2.2p6). Used for function calls that |
| // do not have a prototype. Integer promotions are performed on each |
| // argument, and arguments that have type float are promoted to double. |
| void DefaultArgumentPromotion(Expr *&Expr); |
| |
| // Used for emitting the right warning by DefaultVariadicArgumentPromotion |
| enum VariadicCallType { |
| VariadicFunction, |
| VariadicBlock, |
| VariadicMethod |
| }; |
| |
| // DefaultVariadicArgumentPromotion - Like DefaultArgumentPromotion, but |
| // will warn if the resulting type is not a POD type. |
| void DefaultVariadicArgumentPromotion(Expr *&Expr, VariadicCallType CT); |
| |
| // UsualArithmeticConversions - performs the UsualUnaryConversions on it's |
| // operands and then handles various conversions that are common to binary |
| // operators (C99 6.3.1.8). If both operands aren't arithmetic, this |
| // routine returns the first non-arithmetic type found. The client is |
| // responsible for emitting appropriate error diagnostics. |
| QualType UsualArithmeticConversions(Expr *&lExpr, Expr *&rExpr, |
| bool isCompAssign = false); |
| |
| /// UsualArithmeticConversionsType - handles the various conversions |
| /// that are common to binary operators (C99 6.3.1.8, C++ [expr]p9) |
| /// and returns the result type of that conversion. |
| QualType UsualArithmeticConversionsType(QualType lhs, QualType rhs); |
| |
| |
| /// AssignConvertType - All of the 'assignment' semantic checks return this |
| /// enum to indicate whether the assignment was allowed. These checks are |
| /// done for simple assignments, as well as initialization, return from |
| /// function, argument passing, etc. The query is phrased in terms of a |
| /// source and destination type. |
| enum AssignConvertType { |
| /// Compatible - the types are compatible according to the standard. |
| Compatible, |
| |
| /// PointerToInt - The assignment converts a pointer to an int, which we |
| /// accept as an extension. |
| PointerToInt, |
| |
| /// IntToPointer - The assignment converts an int to a pointer, which we |
| /// accept as an extension. |
| IntToPointer, |
| |
| /// FunctionVoidPointer - The assignment is between a function pointer and |
| /// void*, which the standard doesn't allow, but we accept as an extension. |
| FunctionVoidPointer, |
| |
| /// IncompatiblePointer - The assignment is between two pointers types that |
| /// are not compatible, but we accept them as an extension. |
| IncompatiblePointer, |
| |
| /// CompatiblePointerDiscardsQualifiers - The assignment discards |
| /// c/v/r qualifiers, which we accept as an extension. |
| CompatiblePointerDiscardsQualifiers, |
| |
| /// IncompatibleVectors - The assignment is between two vector types that |
| /// have the same size, which we accept as an extension. |
| IncompatibleVectors, |
| |
| /// IntToBlockPointer - The assignment converts an int to a block |
| /// pointer. We disallow this. |
| IntToBlockPointer, |
| |
| /// IncompatibleBlockPointer - The assignment is between two block |
| /// pointers types that are not compatible. |
| IncompatibleBlockPointer, |
| |
| /// IncompatibleObjCQualifiedId - The assignment is between a qualified |
| /// id type and something else (that is incompatible with it). For example, |
| /// "id <XXX>" = "Foo *", where "Foo *" doesn't implement the XXX protocol. |
| IncompatibleObjCQualifiedId, |
| |
| /// Incompatible - We reject this conversion outright, it is invalid to |
| /// represent it in the AST. |
| Incompatible |
| }; |
| |
| /// DiagnoseAssignmentResult - Emit a diagnostic, if required, for the |
| /// assignment conversion type specified by ConvTy. This returns true if the |
| /// conversion was invalid or false if the conversion was accepted. |
| bool DiagnoseAssignmentResult(AssignConvertType ConvTy, |
| SourceLocation Loc, |
| QualType DstType, QualType SrcType, |
| Expr *SrcExpr, const char *Flavor); |
| |
| /// CheckAssignmentConstraints - Perform type checking for assignment, |
| /// argument passing, variable initialization, and function return values. |
| /// This routine is only used by the following two methods. C99 6.5.16. |
| AssignConvertType CheckAssignmentConstraints(QualType lhs, QualType rhs); |
| |
| // CheckSingleAssignmentConstraints - Currently used by ActOnCallExpr, |
| // CheckAssignmentOperands, and ActOnReturnStmt. Prior to type checking, |
| // this routine performs the default function/array converions. |
| AssignConvertType CheckSingleAssignmentConstraints(QualType lhs, |
| Expr *&rExpr); |
| // CheckCompoundAssignmentConstraints - Type check without performing any |
| // conversions. For compound assignments, the "Check...Operands" methods |
| // perform the necessary conversions. |
| AssignConvertType CheckCompoundAssignmentConstraints(QualType lhs, |
| QualType rhs); |
| |
| // Helper function for CheckAssignmentConstraints (C99 6.5.16.1p1) |
| AssignConvertType CheckPointerTypesForAssignment(QualType lhsType, |
| QualType rhsType); |
| |
| // Helper function for CheckAssignmentConstraints involving two |
| // blcok pointer types. |
| AssignConvertType CheckBlockPointerTypesForAssignment(QualType lhsType, |
| QualType rhsType); |
| |
| bool IsStringLiteralToNonConstPointerConversion(Expr *From, QualType ToType); |
| |
| bool PerformImplicitConversion(Expr *&From, QualType ToType, |
| const char *Flavor, bool AllowExplicit = false); |
| bool PerformImplicitConversion(Expr *&From, QualType ToType, |
| const ImplicitConversionSequence& ICS, |
| const char *Flavor); |
| bool PerformImplicitConversion(Expr *&From, QualType ToType, |
| const StandardConversionSequence& SCS, |
| const char *Flavor); |
| |
| /// the following "Check" methods will return a valid/converted QualType |
| /// or a null QualType (indicating an error diagnostic was issued). |
| |
| /// type checking binary operators (subroutines of CreateBuiltinBinOp). |
| inline QualType InvalidOperands(SourceLocation l, Expr *&lex, Expr *&rex); |
| QualType CheckPointerToMemberOperands( // C++ 5.5 |
| Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isIndirect); |
| inline QualType CheckMultiplyDivideOperands( // C99 6.5.5 |
| Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isCompAssign = false); |
| inline QualType CheckRemainderOperands( // C99 6.5.5 |
| Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isCompAssign = false); |
| inline QualType CheckAdditionOperands( // C99 6.5.6 |
| Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isCompAssign = false); |
| inline QualType CheckSubtractionOperands( // C99 6.5.6 |
| Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isCompAssign = false); |
| inline QualType CheckShiftOperands( // C99 6.5.7 |
| Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isCompAssign = false); |
| inline QualType CheckCompareOperands( // C99 6.5.8/9 |
| Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isRelational); |
| inline QualType CheckBitwiseOperands( // C99 6.5.[10...12] |
| Expr *&lex, Expr *&rex, SourceLocation OpLoc, bool isCompAssign = false); |
| inline QualType CheckLogicalOperands( // C99 6.5.[13,14] |
| Expr *&lex, Expr *&rex, SourceLocation OpLoc); |
| // CheckAssignmentOperands is used for both simple and compound assignment. |
| // For simple assignment, pass both expressions and a null converted type. |
| // For compound assignment, pass both expressions and the converted type. |
| inline QualType CheckAssignmentOperands( // C99 6.5.16.[1,2] |
| Expr *lex, Expr *&rex, SourceLocation OpLoc, QualType convertedType); |
| inline QualType CheckCommaOperands( // C99 6.5.17 |
| Expr *lex, Expr *&rex, SourceLocation OpLoc); |
| inline QualType CheckConditionalOperands( // C99 6.5.15 |
| Expr *&cond, Expr *&lhs, Expr *&rhs, SourceLocation questionLoc); |
| |
| /// type checking for vector binary operators. |
| inline QualType CheckVectorOperands(SourceLocation l, Expr *&lex, Expr *&rex); |
| inline QualType CheckVectorCompareOperands(Expr *&lex, Expr *&rx, |
| SourceLocation l, bool isRel); |
| |
| /// type checking unary operators (subroutines of ActOnUnaryOp). |
| /// C99 6.5.3.1, 6.5.3.2, 6.5.3.4 |
| QualType CheckIncrementDecrementOperand(Expr *op, SourceLocation OpLoc, |
| bool isInc); |
| QualType CheckAddressOfOperand(Expr *op, SourceLocation OpLoc); |
| QualType CheckIndirectionOperand(Expr *op, SourceLocation OpLoc); |
| QualType CheckRealImagOperand(Expr *&Op, SourceLocation OpLoc, bool isReal); |
| |
| /// type checking primary expressions. |
| QualType CheckExtVectorComponent(QualType baseType, SourceLocation OpLoc, |
| IdentifierInfo &Comp, SourceLocation CmpLoc); |
| |
| /// type checking declaration initializers (C99 6.7.8) |
| friend class InitListChecker; |
| bool CheckInitializerTypes(Expr *&simpleInit_or_initList, QualType &declType, |
| SourceLocation InitLoc,DeclarationName InitEntity, |
| bool DirectInit); |
| bool CheckInitList(InitListExpr *&InitList, QualType &DeclType); |
| bool CheckSingleInitializer(Expr *&simpleInit, QualType declType, |
| bool DirectInit); |
| bool CheckForConstantInitializer(Expr *e, QualType t); |
| bool CheckArithmeticConstantExpression(const Expr* e); |
| bool CheckAddressConstantExpression(const Expr* e); |
| bool CheckAddressConstantExpressionLValue(const Expr* e); |
| void InitializerElementNotConstant(const Expr *e); |
| |
| bool CheckStringLiteralInit(StringLiteral *strLiteral, QualType &DeclT); |
| bool CheckValueInitialization(QualType Type, SourceLocation Loc); |
| |
| // type checking C++ declaration initializers (C++ [dcl.init]). |
| |
| /// ReferenceCompareResult - Expresses the result of comparing two |
| /// types (cv1 T1 and cv2 T2) to determine their compatibility for the |
| /// purposes of initialization by reference (C++ [dcl.init.ref]p4). |
| enum ReferenceCompareResult { |
| /// Ref_Incompatible - The two types are incompatible, so direct |
| /// reference binding is not possible. |
| Ref_Incompatible = 0, |
| /// Ref_Related - The two types are reference-related, which means |
| /// that their unqualified forms (T1 and T2) are either the same |
| /// or T1 is a base class of T2. |
| Ref_Related, |
| /// Ref_Compatible_With_Added_Qualification - The two types are |
| /// reference-compatible with added qualification, meaning that |
| /// they are reference-compatible and the qualifiers on T1 (cv1) |
| /// are greater than the qualifiers on T2 (cv2). |
| Ref_Compatible_With_Added_Qualification, |
| /// Ref_Compatible - The two types are reference-compatible and |
| /// have equivalent qualifiers (cv1 == cv2). |
| Ref_Compatible |
| }; |
| |
| ReferenceCompareResult CompareReferenceRelationship(QualType T1, QualType T2, |
| bool& DerivedToBase); |
| |
| bool CheckReferenceInit(Expr *&simpleInit_or_initList, QualType &declType, |
| ImplicitConversionSequence *ICS = 0, |
| bool SuppressUserConversions = false, |
| bool AllowExplicit = false); |
| |
| /// CheckCastTypes - Check type constraints for casting between types. |
| bool CheckCastTypes(SourceRange TyRange, QualType CastTy, Expr *&CastExpr); |
| |
| // CheckVectorCast - check type constraints for vectors. |
| // Since vectors are an extension, there are no C standard reference for this. |
| // We allow casting between vectors and integer datatypes of the same size. |
| // returns true if the cast is invalid |
| bool CheckVectorCast(SourceRange R, QualType VectorTy, QualType Ty); |
| |
| /// CheckMessageArgumentTypes - Check types in an Obj-C message send. |
| /// \param Method - May be null. |
| /// \param [out] ReturnType - The return type of the send. |
| /// \return true iff there were any incompatible types. |
| bool CheckMessageArgumentTypes(Expr **Args, unsigned NumArgs, Selector Sel, |
| ObjCMethodDecl *Method, bool isClassMessage, |
| SourceLocation lbrac, SourceLocation rbrac, |
| QualType &ReturnType); |
| |
| /// CheckCXXBooleanCondition - Returns true if conversion to bool is invalid. |
| bool CheckCXXBooleanCondition(Expr *&CondExpr); |
| |
| /// ConvertIntegerToTypeWarnOnOverflow - Convert the specified APInt to have |
| /// the specified width and sign. If an overflow occurs, detect it and emit |
| /// the specified diagnostic. |
| void ConvertIntegerToTypeWarnOnOverflow(llvm::APSInt &OldVal, |
| unsigned NewWidth, bool NewSign, |
| SourceLocation Loc, unsigned DiagID); |
| |
| bool ObjCQualifiedIdTypesAreCompatible(QualType LHS, QualType RHS, |
| bool ForCompare); |
| |
| /// Checks that the Objective-C declaration is declared in the global scope. |
| /// Emits an error and marks the declaration as invalid if it's not declared |
| /// in the global scope. |
| bool CheckObjCDeclScope(Decl *D); |
| |
| void InitBuiltinVaListType(); |
| |
| /// VerifyIntegerConstantExpression - verifies that an expression is an ICE, |
| /// and reports the appropriate diagnostics. Returns false on success. |
| /// Can optionally return the value of the expression. |
| bool VerifyIntegerConstantExpression(const Expr *E, llvm::APSInt *Result = 0); |
| |
| /// VerifyBitField - verifies that a bit field expression is an ICE and has |
| /// the correct width, and that the field type is valid. |
| /// Returns false on success. |
| bool VerifyBitField(SourceLocation FieldLoc, IdentifierInfo *FieldName, |
| QualType FieldTy, const Expr *BitWidth); |
| |
| //===--------------------------------------------------------------------===// |
| // Extra semantic analysis beyond the C type system |
| private: |
| Action::OwningExprResult CheckFunctionCall(FunctionDecl *FDecl, |
| CallExpr *TheCall); |
| SourceLocation getLocationOfStringLiteralByte(const StringLiteral *SL, |
| unsigned ByteNo) const; |
| bool CheckObjCString(Expr *Arg); |
| bool SemaBuiltinVAStart(CallExpr *TheCall); |
| bool SemaBuiltinUnorderedCompare(CallExpr *TheCall); |
| bool SemaBuiltinStackAddress(CallExpr *TheCall); |
| Action::OwningExprResult SemaBuiltinShuffleVector(CallExpr *TheCall); |
| bool SemaBuiltinPrefetch(CallExpr *TheCall); |
| bool SemaBuiltinObjectSize(CallExpr *TheCall); |
| bool SemaCheckStringLiteral(Expr *E, CallExpr *TheCall, bool HasVAListArg, |
| unsigned format_idx, unsigned firstDataArg); |
| void CheckPrintfString(StringLiteral *FExpr, Expr *OrigFormatExpr, |
| CallExpr *TheCall, bool HasVAListArg, |
| unsigned format_idx, unsigned firstDataArg); |
| void CheckPrintfArguments(CallExpr *TheCall, bool HasVAListArg, |
| unsigned format_idx, unsigned firstDataArg); |
| void CheckReturnStackAddr(Expr *RetValExp, QualType lhsType, |
| SourceLocation ReturnLoc); |
| void CheckFloatComparison(SourceLocation loc, Expr* lex, Expr* rex); |
| }; |
| |
| /// BlockSemaInfo - When a block is being parsed, this contains information |
| /// about the block. It is pointed to from Sema::CurBlock. |
| struct BlockSemaInfo { |
| llvm::SmallVector<ParmVarDecl*, 8> Params; |
| bool hasPrototype; |
| bool isVariadic; |
| bool hasBlockDeclRefExprs; |
| |
| BlockDecl *TheDecl; |
| |
| /// TheScope - This is the scope for the block itself, which contains |
| /// arguments etc. |
| Scope *TheScope; |
| |
| /// ReturnType - This will get set to block result type, by looking at |
| /// return types, if any, in the block body. |
| Type *ReturnType; |
| |
| /// PrevBlockInfo - If this is nested inside another block, this points |
| /// to the outer block. |
| BlockSemaInfo *PrevBlockInfo; |
| }; |
| |
| //===--------------------------------------------------------------------===// |
| // Typed version of Parser::ExprArg (smart pointer for wrapping Expr pointers). |
| template <typename T> |
| class ExprOwningPtr : public Action::ExprArg { |
| public: |
| ExprOwningPtr(Sema *S, T *expr) : Action::ExprArg(*S, expr) {}; |
| |
| void reset(T* p) { Action::ExprArg::operator=(p); } |
| T* get() const { return static_cast<T*>(Action::ExprArg::get()); } |
| T* take() { return static_cast<T*>(Action::ExprArg::take()); } |
| T* release() { return take(); } |
| |
| T& operator*() const { return *get(); } |
| T* operator->() const { return get(); } |
| }; |
| |
| } // end namespace clang |
| |
| #endif |