| //===--- Decl.h - Classes for representing declarations ---------*- 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 Decl subclasses. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_AST_DECL_H |
| #define LLVM_CLANG_AST_DECL_H |
| |
| #include "clang/AST/DeclBase.h" |
| #include "clang/AST/DeclarationName.h" |
| |
| namespace clang { |
| class Expr; |
| class Stmt; |
| class CompoundStmt; |
| class StringLiteral; |
| |
| /// TranslationUnitDecl - The top declaration context. |
| /// FIXME: The TranslationUnit class should probably be modified to serve as |
| /// the top decl context. It would have ownership of the top decls so that the |
| /// AST is self-contained and easily de/serializable. |
| /// FIXME: TranslationUnitDecl isn't really a Decl (!) |
| class TranslationUnitDecl : public Decl, public DeclContext { |
| TranslationUnitDecl() |
| : Decl(TranslationUnit, 0, SourceLocation()), |
| DeclContext(TranslationUnit) {} |
| public: |
| static TranslationUnitDecl *Create(ASTContext &C); |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { return D->getKind() == TranslationUnit; } |
| static bool classof(const TranslationUnitDecl *D) { return true; } |
| static DeclContext *castToDeclContext(const TranslationUnitDecl *D) { |
| return static_cast<DeclContext *>(const_cast<TranslationUnitDecl*>(D)); |
| } |
| static TranslationUnitDecl *castFromDeclContext(const DeclContext *DC) { |
| return static_cast<TranslationUnitDecl *>(const_cast<DeclContext*>(DC)); |
| } |
| |
| protected: |
| /// EmitImpl - Serialize this TranslationUnitDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a TranslationUnitDecl. Called by Decl::Create. |
| static TranslationUnitDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| /// NamedDecl - This represents a decl with a name. Many decls have names such |
| /// as ObjCMethodDecl, but not @class, etc. |
| class NamedDecl : public Decl { |
| /// Name - The name of this declaration, which is typically a normal |
| /// identifier but may also be a special kind of name (C++ |
| /// constructor, Objective-C selector, etc.) |
| DeclarationName Name; |
| |
| protected: |
| NamedDecl(Kind DK, DeclContext *DC, SourceLocation L, DeclarationName N) |
| : Decl(DK, DC, L), Name(N) { } |
| |
| public: |
| /// getIdentifier - Get the identifier that names this declaration, |
| /// if there is one. This will return NULL if this declaration has |
| /// no name (e.g., for an unnamed class) or if the name is a special |
| /// name (C++ constructor, Objective-C selector, etc.). |
| IdentifierInfo *getIdentifier() const { return Name.getAsIdentifierInfo(); } |
| |
| /// getNameAsCString - Get the name of identifier for this declaration as a |
| /// C string (const char*). This requires that the declaration have a name |
| /// and that it be a simple identifier. |
| const char *getNameAsCString() const { |
| assert(getIdentifier() && "Name is not a simple identifier"); |
| return getIdentifier()->getName(); |
| } |
| |
| /// getDeclName - Get the actual, stored name of the declaration, |
| /// which may be a special name. |
| DeclarationName getDeclName() const { return Name; } |
| |
| /// \brief Set the name of this declaration. |
| void setDeclName(DeclarationName N) { Name = N; } |
| |
| /// getNameAsString - Get a human-readable name for the declaration, even if |
| /// it is one of the special kinds of names (C++ constructor, Objective-C |
| /// selector, etc). Creating this name requires expensive string |
| /// manipulation, so it should be called only when performance doesn't matter. |
| /// For simple declarations, getNameAsCString() should suffice. |
| std::string getNameAsString() const { return Name.getAsString(); } |
| |
| /// getQualifiedNameAsString - Returns human-readable qualified name for |
| /// declaration, like A::B::i, for i being member of namespace A::B. |
| /// If declaration is not member of context which can be named (record, |
| /// namespace), it will return same result as getNameAsString(). |
| /// Creating this name is expensive, so it should be called only when |
| /// performance doesn't matter. |
| std::string getQualifiedNameAsString() const; |
| |
| /// declarationReplaces - Determine whether this declaration, if |
| /// known to be well-formed within its context, will replace the |
| /// declaration OldD if introduced into scope. A declaration will |
| /// replace another declaration if, for example, it is a |
| /// redeclaration of the same variable or function, but not if it is |
| /// a declaration of a different kind (function vs. class) or an |
| /// overloaded function. |
| bool declarationReplaces(NamedDecl *OldD) const; |
| |
| /// \brief Determine whether this declaration has linkage. |
| bool hasLinkage() const; |
| |
| static bool classof(const Decl *D) { |
| return D->getKind() >= NamedFirst && D->getKind() <= NamedLast; |
| } |
| static bool classof(const NamedDecl *D) { return true; } |
| |
| protected: |
| void EmitInRec(llvm::Serializer& S) const; |
| void ReadInRec(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| /// NamespaceDecl - Represent a C++ namespace. |
| class NamespaceDecl : public NamedDecl, public DeclContext { |
| SourceLocation LBracLoc, RBracLoc; |
| |
| // For extended namespace definitions: |
| // |
| // namespace A { int x; } |
| // namespace A { int y; } |
| // |
| // there will be one NamespaceDecl for each declaration. |
| // NextNamespace points to the next extended declaration. |
| // OrigNamespace points to the original namespace declaration. |
| // OrigNamespace of the first namespace decl points to itself. |
| NamespaceDecl *OrigNamespace, *NextNamespace; |
| |
| NamespaceDecl(DeclContext *DC, SourceLocation L, IdentifierInfo *Id) |
| : NamedDecl(Namespace, DC, L, Id), DeclContext(Namespace) { |
| OrigNamespace = this; |
| NextNamespace = 0; |
| } |
| public: |
| static NamespaceDecl *Create(ASTContext &C, DeclContext *DC, |
| SourceLocation L, IdentifierInfo *Id); |
| |
| virtual void Destroy(ASTContext& C); |
| |
| NamespaceDecl *getNextNamespace() { return NextNamespace; } |
| const NamespaceDecl *getNextNamespace() const { return NextNamespace; } |
| void setNextNamespace(NamespaceDecl *ND) { NextNamespace = ND; } |
| |
| NamespaceDecl *getOriginalNamespace() const { |
| return OrigNamespace; |
| } |
| void setOriginalNamespace(NamespaceDecl *ND) { OrigNamespace = ND; } |
| |
| SourceRange getSourceRange() const { |
| return SourceRange(LBracLoc, RBracLoc); |
| } |
| |
| SourceLocation getLBracLoc() const { return LBracLoc; } |
| SourceLocation getRBracLoc() const { return RBracLoc; } |
| void setLBracLoc(SourceLocation LBrace) { LBracLoc = LBrace; } |
| void setRBracLoc(SourceLocation RBrace) { RBracLoc = RBrace; } |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { return D->getKind() == Namespace; } |
| static bool classof(const NamespaceDecl *D) { return true; } |
| static DeclContext *castToDeclContext(const NamespaceDecl *D) { |
| return static_cast<DeclContext *>(const_cast<NamespaceDecl*>(D)); |
| } |
| static NamespaceDecl *castFromDeclContext(const DeclContext *DC) { |
| return static_cast<NamespaceDecl *>(const_cast<DeclContext*>(DC)); |
| } |
| |
| protected: |
| /// EmitImpl - Serialize this NamespaceDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a NamespaceDecl. Called by Decl::Create. |
| static NamespaceDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| /// ValueDecl - Represent the declaration of a variable (in which case it is |
| /// an lvalue) a function (in which case it is a function designator) or |
| /// an enum constant. |
| class ValueDecl : public NamedDecl { |
| QualType DeclType; |
| |
| protected: |
| ValueDecl(Kind DK, DeclContext *DC, SourceLocation L, |
| DeclarationName N, QualType T) |
| : NamedDecl(DK, DC, L, N), DeclType(T) {} |
| public: |
| QualType getType() const { return DeclType; } |
| void setType(QualType newType) { DeclType = newType; } |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { |
| return D->getKind() >= ValueFirst && D->getKind() <= ValueLast; |
| } |
| static bool classof(const ValueDecl *D) { return true; } |
| |
| protected: |
| void EmitInRec(llvm::Serializer& S) const; |
| void ReadInRec(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| /// VarDecl - An instance of this class is created to represent a variable |
| /// declaration or definition. |
| class VarDecl : public ValueDecl { |
| public: |
| enum StorageClass { |
| None, Auto, Register, Extern, Static, PrivateExtern |
| }; |
| private: |
| Stmt *Init; |
| // FIXME: This can be packed into the bitfields in Decl. |
| unsigned SClass : 3; |
| bool ThreadSpecified : 1; |
| bool HasCXXDirectInit : 1; |
| |
| /// DeclaredInCondition - Whether this variable was declared in a |
| /// condition, e.g., if (int x = foo()) { ... }. |
| bool DeclaredInCondition : 1; |
| |
| /// \brief The previous declaration of this variable. |
| VarDecl *PreviousDeclaration; |
| |
| // Move to DeclGroup when it is implemented. |
| SourceLocation TypeSpecStartLoc; |
| friend class StmtIteratorBase; |
| protected: |
| VarDecl(Kind DK, DeclContext *DC, SourceLocation L, IdentifierInfo *Id, |
| QualType T, StorageClass SC, SourceLocation TSSL = SourceLocation()) |
| : ValueDecl(DK, DC, L, Id, T), Init(0), |
| ThreadSpecified(false), HasCXXDirectInit(false), |
| DeclaredInCondition(false), PreviousDeclaration(0), |
| TypeSpecStartLoc(TSSL) { |
| SClass = SC; |
| } |
| public: |
| static VarDecl *Create(ASTContext &C, DeclContext *DC, |
| SourceLocation L, IdentifierInfo *Id, |
| QualType T, StorageClass S, |
| SourceLocation TypeSpecStartLoc = SourceLocation()); |
| |
| virtual ~VarDecl(); |
| virtual void Destroy(ASTContext& C); |
| |
| StorageClass getStorageClass() const { return (StorageClass)SClass; } |
| void setStorageClass(StorageClass SC) { SClass = SC; } |
| |
| SourceLocation getTypeSpecStartLoc() const { return TypeSpecStartLoc; } |
| void setTypeSpecStartLoc(SourceLocation SL) { |
| TypeSpecStartLoc = SL; |
| } |
| |
| const Expr *getInit() const { return (const Expr*) Init; } |
| Expr *getInit() { return (Expr*) Init; } |
| void setInit(Expr *I) { Init = (Stmt*) I; } |
| |
| /// \brief Retrieve the definition of this variable, which may come |
| /// from a previous declaration. Def will be set to the VarDecl that |
| /// contains the initializer, and the result will be that |
| /// initializer. |
| const Expr *getDefinition(const VarDecl *&Def) const; |
| |
| void setThreadSpecified(bool T) { ThreadSpecified = T; } |
| bool isThreadSpecified() const { |
| return ThreadSpecified; |
| } |
| |
| void setCXXDirectInitializer(bool T) { HasCXXDirectInit = T; } |
| |
| /// hasCXXDirectInitializer - If true, the initializer was a direct |
| /// initializer, e.g: "int x(1);". The Init expression will be the expression |
| /// inside the parens or a "ClassType(a,b,c)" class constructor expression for |
| /// class types. Clients can distinguish between "int x(1);" and "int x=1;" |
| /// by checking hasCXXDirectInitializer. |
| /// |
| bool hasCXXDirectInitializer() const { |
| return HasCXXDirectInit; |
| } |
| |
| /// isDeclaredInCondition - Whether this variable was declared as |
| /// part of a condition in an if/switch/while statement, e.g., |
| /// @code |
| /// if (int x = foo()) { ... } |
| /// @endcode |
| bool isDeclaredInCondition() const { |
| return DeclaredInCondition; |
| } |
| void setDeclaredInCondition(bool InCondition) { |
| DeclaredInCondition = InCondition; |
| } |
| |
| /// getPreviousDeclaration - Return the previous declaration of this |
| /// variable. |
| const VarDecl *getPreviousDeclaration() const { return PreviousDeclaration; } |
| |
| void setPreviousDeclaration(VarDecl * PrevDecl) { |
| PreviousDeclaration = PrevDecl; |
| } |
| |
| /// hasLocalStorage - Returns true if a variable with function scope |
| /// is a non-static local variable. |
| bool hasLocalStorage() const { |
| if (getStorageClass() == None) |
| return !isFileVarDecl(); |
| |
| // Return true for: Auto, Register. |
| // Return false for: Extern, Static, PrivateExtern. |
| |
| return getStorageClass() <= Register; |
| } |
| |
| /// hasExternStorage - Returns true if a variable has extern or |
| /// __private_extern__ storage. |
| bool hasExternalStorage() const { |
| return getStorageClass() == Extern || getStorageClass() == PrivateExtern; |
| } |
| |
| /// hasGlobalStorage - Returns true for all variables that do not |
| /// have local storage. This includs all global variables as well |
| /// as static variables declared within a function. |
| bool hasGlobalStorage() const { return !hasLocalStorage(); } |
| |
| /// isBlockVarDecl - Returns true for local variable declarations. Note that |
| /// this includes static variables inside of functions. |
| /// |
| /// void foo() { int x; static int y; extern int z; } |
| /// |
| bool isBlockVarDecl() const { |
| if (getKind() != Decl::Var) |
| return false; |
| if (const DeclContext *DC = getDeclContext()) |
| return DC->getLookupContext()->isFunctionOrMethod(); |
| return false; |
| } |
| |
| /// \brief Determines whether this is a static data member. |
| /// |
| /// This will only be true in C++, and applies to, e.g., the |
| /// variable 'x' in: |
| /// \code |
| /// struct S { |
| /// static int x; |
| /// }; |
| /// \endcode |
| bool isStaticDataMember() const { |
| return getDeclContext()->isRecord(); |
| } |
| |
| /// isFileVarDecl - Returns true for file scoped variable declaration. |
| bool isFileVarDecl() const { |
| if (getKind() != Decl::Var) |
| return false; |
| if (const DeclContext *Ctx = getDeclContext()) { |
| Ctx = Ctx->getLookupContext(); |
| if (isa<TranslationUnitDecl>(Ctx) || isa<NamespaceDecl>(Ctx) ) |
| return true; |
| } |
| return false; |
| } |
| |
| /// \brief Determine whether this is a tentative definition of a |
| /// variable in C. |
| bool isTentativeDefinition(ASTContext &Context) const; |
| |
| /// \brief Determines whether this variable is a variable with |
| /// external, C linkage. |
| bool isExternC(ASTContext &Context) const; |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { |
| return D->getKind() >= VarFirst && D->getKind() <= VarLast; |
| } |
| static bool classof(const VarDecl *D) { return true; } |
| |
| protected: |
| void EmitInRec(llvm::Serializer& S) const; |
| void ReadInRec(llvm::Deserializer& D, ASTContext& C); |
| |
| void EmitOutRec(llvm::Serializer& S) const; |
| void ReadOutRec(llvm::Deserializer& D, ASTContext& C); |
| |
| /// EmitImpl - Serialize this VarDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// ReadImpl - Deserialize this VarDecl. Called by subclasses. |
| virtual void ReadImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| /// CreateImpl - Deserialize a VarDecl. Called by Decl::Create. |
| static VarDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| class ImplicitParamDecl : public VarDecl { |
| protected: |
| ImplicitParamDecl(Kind DK, DeclContext *DC, SourceLocation L, |
| IdentifierInfo *Id, QualType Tw) |
| : VarDecl(DK, DC, L, Id, Tw, VarDecl::None) {} |
| public: |
| static ImplicitParamDecl *Create(ASTContext &C, DeclContext *DC, |
| SourceLocation L, IdentifierInfo *Id, |
| QualType T); |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const ImplicitParamDecl *D) { return true; } |
| static bool classof(const Decl *D) { return D->getKind() == ImplicitParam; } |
| }; |
| |
| /// ParmVarDecl - Represent a parameter to a function. |
| class ParmVarDecl : public VarDecl { |
| // NOTE: VC++ treats enums as signed, avoid using the ObjCDeclQualifier enum |
| /// FIXME: Also can be paced into the bitfields in Decl. |
| /// in, inout, etc. |
| unsigned objcDeclQualifier : 6; |
| |
| /// Default argument, if any. [C++ Only] |
| Expr *DefaultArg; |
| protected: |
| ParmVarDecl(Kind DK, DeclContext *DC, SourceLocation L, |
| IdentifierInfo *Id, QualType T, StorageClass S, |
| Expr *DefArg) |
| : VarDecl(DK, DC, L, Id, T, S), |
| objcDeclQualifier(OBJC_TQ_None), DefaultArg(DefArg) {} |
| |
| public: |
| static ParmVarDecl *Create(ASTContext &C, DeclContext *DC, |
| SourceLocation L,IdentifierInfo *Id, |
| QualType T, StorageClass S, Expr *DefArg); |
| |
| ObjCDeclQualifier getObjCDeclQualifier() const { |
| return ObjCDeclQualifier(objcDeclQualifier); |
| } |
| void setObjCDeclQualifier(ObjCDeclQualifier QTVal) { |
| objcDeclQualifier = QTVal; |
| } |
| |
| const Expr *getDefaultArg() const { return DefaultArg; } |
| Expr *getDefaultArg() { return DefaultArg; } |
| void setDefaultArg(Expr *defarg) { DefaultArg = defarg; } |
| |
| /// hasUnparsedDefaultArg - Determines whether this parameter has a |
| /// default argument that has not yet been parsed. This will occur |
| /// during the processing of a C++ class whose member functions have |
| /// default arguments, e.g., |
| /// @code |
| /// class X { |
| /// public: |
| /// void f(int x = 17); // x has an unparsed default argument now |
| /// }; // x has a regular default argument now |
| /// @endcode |
| bool hasUnparsedDefaultArg() const { |
| return DefaultArg == reinterpret_cast<Expr *>(-1); |
| } |
| |
| /// setUnparsedDefaultArg - Specify that this parameter has an |
| /// unparsed default argument. The argument will be replaced with a |
| /// real default argument via setDefaultArg when the class |
| /// definition enclosing the function declaration that owns this |
| /// default argument is completed. |
| void setUnparsedDefaultArg() { DefaultArg = reinterpret_cast<Expr *>(-1); } |
| |
| QualType getOriginalType() const; |
| |
| /// setOwningFunction - Sets the function declaration that owns this |
| /// ParmVarDecl. Since ParmVarDecls are often created before the |
| /// FunctionDecls that own them, this routine is required to update |
| /// the DeclContext appropriately. |
| void setOwningFunction(DeclContext *FD) { setDeclContext(FD); } |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { |
| return (D->getKind() == ParmVar || |
| D->getKind() == OriginalParmVar); |
| } |
| static bool classof(const ParmVarDecl *D) { return true; } |
| |
| protected: |
| /// EmitImpl - Serialize this ParmVarDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a ParmVarDecl. Called by Decl::Create. |
| static ParmVarDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| /// OriginalParmVarDecl - Represent a parameter to a function, when |
| /// the type of the parameter has been promoted. This node represents the |
| /// parameter to the function with its original type. |
| /// |
| class OriginalParmVarDecl : public ParmVarDecl { |
| friend class ParmVarDecl; |
| protected: |
| QualType OriginalType; |
| private: |
| OriginalParmVarDecl(DeclContext *DC, SourceLocation L, |
| IdentifierInfo *Id, QualType T, |
| QualType OT, StorageClass S, |
| Expr *DefArg) |
| : ParmVarDecl(OriginalParmVar, DC, L, Id, T, S, DefArg), OriginalType(OT) {} |
| public: |
| static OriginalParmVarDecl *Create(ASTContext &C, DeclContext *DC, |
| SourceLocation L,IdentifierInfo *Id, |
| QualType T, QualType OT, |
| StorageClass S, Expr *DefArg); |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { return D->getKind() == OriginalParmVar; } |
| static bool classof(const OriginalParmVarDecl *D) { return true; } |
| |
| protected: |
| /// EmitImpl - Serialize this OriginalParmVarDecl. |
| /// Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a OriginalParmVarDecl. |
| /// Called by Decl::Create. |
| static OriginalParmVarDecl* CreateImpl(llvm::Deserializer& D, |
| ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| /// FunctionDecl - An instance of this class is created to represent a |
| /// function declaration or definition. |
| /// |
| /// Since a given function can be declared several times in a program, |
| /// there may be several FunctionDecls that correspond to that |
| /// function. Only one of those FunctionDecls will be found when |
| /// traversing the list of declarations in the context of the |
| /// FunctionDecl (e.g., the translation unit); this FunctionDecl |
| /// contains all of the information known about the function. Other, |
| /// previous declarations of the function are available via the |
| /// getPreviousDeclaration() chain. |
| class FunctionDecl : public ValueDecl, public DeclContext { |
| public: |
| enum StorageClass { |
| None, Extern, Static, PrivateExtern |
| }; |
| private: |
| /// ParamInfo - new[]'d array of pointers to VarDecls for the formal |
| /// parameters of this function. This is null if a prototype or if there are |
| /// no formals. TODO: we could allocate this space immediately after the |
| /// FunctionDecl object to save an allocation like FunctionType does. |
| ParmVarDecl **ParamInfo; |
| |
| Stmt *Body; // Null if a prototype. |
| |
| /// PreviousDeclaration - A link to the previous declaration of this |
| /// same function, NULL if this is the first declaration. For |
| /// example, in the following code, the PreviousDeclaration can be |
| /// traversed several times to see all three declarations of the |
| /// function "f", the last of which is also a definition. |
| /// |
| /// int f(int x, int y = 1); |
| /// int f(int x = 0, int y); |
| /// int f(int x, int y) { return x + y; } |
| FunctionDecl *PreviousDeclaration; |
| |
| // FIXME: This can be packed into the bitfields in Decl. |
| // NOTE: VC++ treats enums as signed, avoid using the StorageClass enum |
| unsigned SClass : 2; |
| bool IsInline : 1; |
| bool IsVirtual : 1; |
| bool IsPure : 1; |
| bool InheritedPrototype : 1; |
| bool HasPrototype : 1; |
| bool IsDeleted : 1; |
| |
| // Move to DeclGroup when it is implemented. |
| SourceLocation TypeSpecStartLoc; |
| protected: |
| FunctionDecl(Kind DK, DeclContext *DC, SourceLocation L, |
| DeclarationName N, QualType T, |
| StorageClass S, bool isInline, |
| SourceLocation TSSL = SourceLocation()) |
| : ValueDecl(DK, DC, L, N, T), |
| DeclContext(DK), |
| ParamInfo(0), Body(0), PreviousDeclaration(0), |
| SClass(S), IsInline(isInline), IsVirtual(false), IsPure(false), |
| InheritedPrototype(false), HasPrototype(true), IsDeleted(false), |
| TypeSpecStartLoc(TSSL) {} |
| |
| virtual ~FunctionDecl() {} |
| virtual void Destroy(ASTContext& C); |
| |
| public: |
| static FunctionDecl *Create(ASTContext &C, DeclContext *DC, SourceLocation L, |
| DeclarationName N, QualType T, |
| StorageClass S = None, bool isInline = false, |
| bool hasPrototype = true, |
| SourceLocation TSStartLoc = SourceLocation()); |
| |
| SourceLocation getTypeSpecStartLoc() const { return TypeSpecStartLoc; } |
| |
| /// getBody - Retrieve the body (definition) of the function. The |
| /// function body might be in any of the (re-)declarations of this |
| /// function. The variant that accepts a FunctionDecl pointer will |
| /// set that function declaration to the actual declaration |
| /// containing the body (if there is one). |
| CompoundStmt *getBody(const FunctionDecl *&Definition) const; |
| |
| virtual CompoundStmt *getBody() const { |
| const FunctionDecl* Definition; |
| return getBody(Definition); |
| } |
| |
| /// isThisDeclarationADefinition - Returns whether this specific |
| /// declaration of the function is also a definition. This does not |
| /// determine whether the function has been defined (e.g., in a |
| /// previous definition); for that information, use getBody. |
| /// FIXME: Should return true if function is deleted or defaulted. However, |
| /// CodeGenModule.cpp uses it, and I don't know if this would break it. |
| bool isThisDeclarationADefinition() const { return Body != 0; } |
| |
| void setBody(CompoundStmt *B) { Body = (Stmt*) B; } |
| |
| /// Whether this function is virtual, either by explicit marking, or by |
| /// overriding a virtual function. Only valid on C++ member functions. |
| bool isVirtual() { return IsVirtual; } |
| void setVirtual() { IsVirtual = true; } |
| |
| /// Whether this virtual function is pure, i.e. makes the containing class |
| /// abstract. |
| bool isPure() const { return IsPure; } |
| void setPure() { IsPure = true; } |
| |
| /// \brief Whether this function has a prototype, either because one |
| /// was explicitly written or because it was "inherited" by merging |
| /// a declaration without a prototype with a declaration that has a |
| /// prototype. |
| bool hasPrototype() const { return HasPrototype || InheritedPrototype; } |
| |
| /// \brief Whether this function inherited its prototype from a |
| /// previous declaration. |
| bool inheritedPrototype() const { return InheritedPrototype; } |
| void setInheritedPrototype() { InheritedPrototype = true; } |
| |
| /// \brief Whether this function has been deleted. |
| /// |
| /// A function that is "deleted" (via the C++0x "= delete" syntax) |
| /// acts like a normal function, except that it cannot actually be |
| /// called or have its address taken. Deleted functions are |
| /// typically used in C++ overload resolution to attract arguments |
| /// whose type or lvalue/rvalue-ness would permit the use of a |
| /// different overload that would behave incorrectly. For example, |
| /// one might use deleted functions to ban implicit conversion from |
| /// a floating-point number to an Integer type: |
| /// |
| /// @code |
| /// struct Integer { |
| /// Integer(long); // construct from a long |
| /// Integer(double) = delete; // no construction from float or double |
| /// Integer(long double) = delete; // no construction from long double |
| /// }; |
| /// @endcode |
| bool isDeleted() const { return IsDeleted; } |
| void setDeleted() { IsDeleted = true; } |
| |
| /// \brief Determines whether this is a function "main", which is |
| /// the entry point into an executable program. |
| bool isMain() const; |
| |
| /// \brief Determines whether this function is a function with |
| /// external, C linkage. |
| bool isExternC(ASTContext &Context) const; |
| |
| /// \brief Determines whether this is a global function. |
| bool isGlobal() const; |
| |
| /// getPreviousDeclaration - Return the previous declaration of this |
| /// function. |
| const FunctionDecl *getPreviousDeclaration() const { |
| return PreviousDeclaration; |
| } |
| |
| void setPreviousDeclaration(FunctionDecl * PrevDecl) { |
| PreviousDeclaration = PrevDecl; |
| } |
| |
| unsigned getBuiltinID(ASTContext &Context) const; |
| |
| // Iterator access to formal parameters. |
| unsigned param_size() const { return getNumParams(); } |
| typedef ParmVarDecl **param_iterator; |
| typedef ParmVarDecl * const *param_const_iterator; |
| |
| param_iterator param_begin() { return ParamInfo; } |
| param_iterator param_end() { return ParamInfo+param_size(); } |
| |
| param_const_iterator param_begin() const { return ParamInfo; } |
| param_const_iterator param_end() const { return ParamInfo+param_size(); } |
| |
| unsigned getNumParams() const; |
| const ParmVarDecl *getParamDecl(unsigned i) const { |
| assert(i < getNumParams() && "Illegal param #"); |
| return ParamInfo[i]; |
| } |
| ParmVarDecl *getParamDecl(unsigned i) { |
| assert(i < getNumParams() && "Illegal param #"); |
| return ParamInfo[i]; |
| } |
| void setParams(ASTContext& C, ParmVarDecl **NewParamInfo, unsigned NumParams); |
| |
| /// getMinRequiredArguments - Returns the minimum number of arguments |
| /// needed to call this function. This may be fewer than the number of |
| /// function parameters, if some of the parameters have default |
| /// arguments (in C++). |
| unsigned getMinRequiredArguments() const; |
| |
| QualType getResultType() const { |
| return getType()->getAsFunctionType()->getResultType(); |
| } |
| StorageClass getStorageClass() const { return StorageClass(SClass); } |
| void setStorageClass(StorageClass SC) { SClass = SC; } |
| |
| bool isInline() const { return IsInline; } |
| |
| /// isOverloadedOperator - Whether this function declaration |
| /// represents an C++ overloaded operator, e.g., "operator+". |
| bool isOverloadedOperator() const { |
| return getOverloadedOperator() != OO_None; |
| }; |
| |
| OverloadedOperatorKind getOverloadedOperator() const; |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { |
| return D->getKind() >= FunctionFirst && D->getKind() <= FunctionLast; |
| } |
| static bool classof(const FunctionDecl *D) { return true; } |
| static DeclContext *castToDeclContext(const FunctionDecl *D) { |
| return static_cast<DeclContext *>(const_cast<FunctionDecl*>(D)); |
| } |
| static FunctionDecl *castFromDeclContext(const DeclContext *DC) { |
| return static_cast<FunctionDecl *>(const_cast<DeclContext*>(DC)); |
| } |
| |
| protected: |
| /// EmitImpl - Serialize this FunctionDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a FunctionDecl. Called by Decl::Create. |
| static FunctionDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| friend class CXXRecordDecl; |
| }; |
| |
| |
| /// FieldDecl - An instance of this class is created by Sema::ActOnField to |
| /// represent a member of a struct/union/class. |
| class FieldDecl : public ValueDecl { |
| // FIXME: This can be packed into the bitfields in Decl. |
| bool Mutable : 1; |
| Expr *BitWidth; |
| protected: |
| FieldDecl(Kind DK, DeclContext *DC, SourceLocation L, |
| IdentifierInfo *Id, QualType T, Expr *BW, bool Mutable) |
| : ValueDecl(DK, DC, L, Id, T), Mutable(Mutable), BitWidth(BW) |
| { } |
| |
| public: |
| static FieldDecl *Create(ASTContext &C, DeclContext *DC, SourceLocation L, |
| IdentifierInfo *Id, QualType T, Expr *BW, |
| bool Mutable); |
| |
| /// isMutable - Determines whether this field is mutable (C++ only). |
| bool isMutable() const { return Mutable; } |
| |
| /// \brief Set whether this field is mutable (C++ only). |
| void setMutable(bool M) { Mutable = M; } |
| |
| /// isBitfield - Determines whether this field is a bitfield. |
| bool isBitField() const { return BitWidth != NULL; } |
| |
| /// @brief Determines whether this is an unnamed bitfield. |
| bool isUnnamedBitfield() const { return BitWidth != NULL && !getDeclName(); } |
| |
| /// isAnonymousStructOrUnion - Determines whether this field is a |
| /// representative for an anonymous struct or union. Such fields are |
| /// unnamed and are implicitly generated by the implementation to |
| /// store the data for the anonymous union or struct. |
| bool isAnonymousStructOrUnion() const; |
| |
| Expr *getBitWidth() const { return BitWidth; } |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { |
| return D->getKind() >= FieldFirst && D->getKind() <= FieldLast; |
| } |
| static bool classof(const FieldDecl *D) { return true; } |
| |
| protected: |
| /// EmitImpl - Serialize this FieldDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a FieldDecl. Called by Decl::Create. |
| static FieldDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| /// EnumConstantDecl - An instance of this object exists for each enum constant |
| /// that is defined. For example, in "enum X {a,b}", each of a/b are |
| /// EnumConstantDecl's, X is an instance of EnumDecl, and the type of a/b is a |
| /// TagType for the X EnumDecl. |
| class EnumConstantDecl : public ValueDecl { |
| Stmt *Init; // an integer constant expression |
| llvm::APSInt Val; // The value. |
| protected: |
| EnumConstantDecl(DeclContext *DC, SourceLocation L, |
| IdentifierInfo *Id, QualType T, Expr *E, |
| const llvm::APSInt &V) |
| : ValueDecl(EnumConstant, DC, L, Id, T), Init((Stmt*)E), Val(V) {} |
| |
| virtual ~EnumConstantDecl() {} |
| public: |
| |
| static EnumConstantDecl *Create(ASTContext &C, EnumDecl *DC, |
| SourceLocation L, IdentifierInfo *Id, |
| QualType T, Expr *E, |
| const llvm::APSInt &V); |
| |
| virtual void Destroy(ASTContext& C); |
| |
| const Expr *getInitExpr() const { return (const Expr*) Init; } |
| Expr *getInitExpr() { return (Expr*) Init; } |
| const llvm::APSInt &getInitVal() const { return Val; } |
| |
| void setInitExpr(Expr *E) { Init = (Stmt*) E; } |
| void setInitVal(const llvm::APSInt &V) { Val = V; } |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { return D->getKind() == EnumConstant; } |
| static bool classof(const EnumConstantDecl *D) { return true; } |
| |
| friend class StmtIteratorBase; |
| |
| protected: |
| /// EmitImpl - Serialize this EnumConstantDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a EnumConstantDecl. Called by Decl::Create. |
| static EnumConstantDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| |
| /// TypeDecl - Represents a declaration of a type. |
| /// |
| class TypeDecl : public NamedDecl { |
| /// TypeForDecl - This indicates the Type object that represents |
| /// this TypeDecl. It is a cache maintained by |
| /// ASTContext::getTypedefType, ASTContext::getTagDeclType, and |
| /// ASTContext::getTemplateTypeParmType, and TemplateTypeParmDecl. |
| Type *TypeForDecl; |
| friend class ASTContext; |
| friend class DeclContext; |
| friend class TagDecl; |
| friend class TemplateTypeParmDecl; |
| friend class ClassTemplateSpecializationDecl; |
| friend class TagType; |
| |
| protected: |
| TypeDecl(Kind DK, DeclContext *DC, SourceLocation L, |
| IdentifierInfo *Id) |
| : NamedDecl(DK, DC, L, Id), TypeForDecl(0) {} |
| |
| public: |
| // Low-level accessor |
| Type *getTypeForDecl() const { return TypeForDecl; } |
| void setTypeForDecl(Type *TD) { TypeForDecl = TD; } |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { |
| return D->getKind() >= TypeFirst && D->getKind() <= TypeLast; |
| } |
| static bool classof(const TypeDecl *D) { return true; } |
| }; |
| |
| |
| class TypedefDecl : public TypeDecl { |
| /// UnderlyingType - This is the type the typedef is set to. |
| QualType UnderlyingType; |
| TypedefDecl(DeclContext *DC, SourceLocation L, |
| IdentifierInfo *Id, QualType T) |
| : TypeDecl(Typedef, DC, L, Id), UnderlyingType(T) {} |
| |
| virtual ~TypedefDecl() {} |
| public: |
| |
| static TypedefDecl *Create(ASTContext &C, DeclContext *DC, |
| SourceLocation L,IdentifierInfo *Id, |
| QualType T); |
| |
| QualType getUnderlyingType() const { return UnderlyingType; } |
| void setUnderlyingType(QualType newType) { UnderlyingType = newType; } |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { return D->getKind() == Typedef; } |
| static bool classof(const TypedefDecl *D) { return true; } |
| |
| protected: |
| /// EmitImpl - Serialize this TypedefDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a TypedefDecl. Called by Decl::Create. |
| static TypedefDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| class TypedefDecl; |
| |
| /// TagDecl - Represents the declaration of a struct/union/class/enum. |
| class TagDecl : public TypeDecl, public DeclContext { |
| public: |
| enum TagKind { |
| TK_struct, |
| TK_union, |
| TK_class, |
| TK_enum |
| }; |
| |
| private: |
| // FIXME: This can be packed into the bitfields in Decl. |
| /// TagDeclKind - The TagKind enum. |
| unsigned TagDeclKind : 2; |
| |
| /// IsDefinition - True if this is a definition ("struct foo {};"), false if |
| /// it is a declaration ("struct foo;"). |
| bool IsDefinition : 1; |
| |
| /// TypedefForAnonDecl - If a TagDecl is anonymous and part of a typedef, |
| /// this points to the TypedefDecl. Used for mangling. |
| TypedefDecl *TypedefForAnonDecl; |
| |
| protected: |
| TagDecl(Kind DK, TagKind TK, DeclContext *DC, SourceLocation L, |
| IdentifierInfo *Id) |
| : TypeDecl(DK, DC, L, Id), DeclContext(DK), TypedefForAnonDecl(0) { |
| assert((DK != Enum || TK == TK_enum) &&"EnumDecl not matched with TK_enum"); |
| TagDeclKind = TK; |
| IsDefinition = false; |
| } |
| public: |
| |
| /// isDefinition - Return true if this decl has its body specified. |
| bool isDefinition() const { |
| return IsDefinition; |
| } |
| |
| /// @brief Starts the definition of this tag declaration. |
| /// |
| /// This method should be invoked at the beginning of the definition |
| /// of this tag declaration. It will set the tag type into a state |
| /// where it is in the process of being defined. |
| void startDefinition(); |
| |
| /// @brief Completes the definition of this tag declaration. |
| void completeDefinition(); |
| |
| /// getDefinition - Returns the TagDecl that actually defines this |
| /// struct/union/class/enum. When determining whether or not a |
| /// struct/union/class/enum is completely defined, one should use this method |
| /// as opposed to 'isDefinition'. 'isDefinition' indicates whether or not a |
| /// specific TagDecl is defining declaration, not whether or not the |
| /// struct/union/class/enum type is defined. This method returns NULL if |
| /// there is no TagDecl that defines the struct/union/class/enum. |
| TagDecl* getDefinition(ASTContext& C) const; |
| |
| const char *getKindName() const { |
| switch (getTagKind()) { |
| default: assert(0 && "Unknown TagKind!"); |
| case TK_struct: return "struct"; |
| case TK_union: return "union"; |
| case TK_class: return "class"; |
| case TK_enum: return "enum"; |
| } |
| } |
| |
| TagKind getTagKind() const { |
| return TagKind(TagDeclKind); |
| } |
| |
| void setTagKind(TagKind TK) { TagDeclKind = TK; } |
| |
| bool isStruct() const { return getTagKind() == TK_struct; } |
| bool isClass() const { return getTagKind() == TK_class; } |
| bool isUnion() const { return getTagKind() == TK_union; } |
| bool isEnum() const { return getTagKind() == TK_enum; } |
| |
| TypedefDecl *getTypedefForAnonDecl() const { return TypedefForAnonDecl; } |
| void setTypedefForAnonDecl(TypedefDecl *TDD) { TypedefForAnonDecl = TDD; } |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { |
| return D->getKind() >= TagFirst && D->getKind() <= TagLast; |
| } |
| static bool classof(const TagDecl *D) { return true; } |
| |
| static DeclContext *castToDeclContext(const TagDecl *D) { |
| return static_cast<DeclContext *>(const_cast<TagDecl*>(D)); |
| } |
| static TagDecl *castFromDeclContext(const DeclContext *DC) { |
| return static_cast<TagDecl *>(const_cast<DeclContext*>(DC)); |
| } |
| |
| void setDefinition(bool V) { IsDefinition = V; } |
| }; |
| |
| /// EnumDecl - Represents an enum. As an extension, we allow forward-declared |
| /// enums. |
| class EnumDecl : public TagDecl { |
| /// IntegerType - This represent the integer type that the enum corresponds |
| /// to for code generation purposes. Note that the enumerator constants may |
| /// have a different type than this does. |
| QualType IntegerType; |
| |
| EnumDecl(DeclContext *DC, SourceLocation L, |
| IdentifierInfo *Id) |
| : TagDecl(Enum, TK_enum, DC, L, Id) { |
| IntegerType = QualType(); |
| } |
| public: |
| static EnumDecl *Create(ASTContext &C, DeclContext *DC, |
| SourceLocation L, IdentifierInfo *Id, |
| EnumDecl *PrevDecl); |
| |
| virtual void Destroy(ASTContext& C); |
| |
| /// completeDefinition - When created, the EnumDecl corresponds to a |
| /// forward-declared enum. This method is used to mark the |
| /// declaration as being defined; it's enumerators have already been |
| /// added (via DeclContext::addDecl). NewType is the new underlying |
| /// type of the enumeration type. |
| void completeDefinition(ASTContext &C, QualType NewType); |
| |
| // enumerator_iterator - Iterates through the enumerators of this |
| // enumeration. |
| typedef specific_decl_iterator<EnumConstantDecl> enumerator_iterator; |
| |
| enumerator_iterator enumerator_begin(ASTContext &Context) const { |
| return enumerator_iterator(this->decls_begin(Context)); |
| } |
| |
| enumerator_iterator enumerator_end(ASTContext &Context) const { |
| return enumerator_iterator(this->decls_end(Context)); |
| } |
| |
| /// getIntegerType - Return the integer type this enum decl corresponds to. |
| /// This returns a null qualtype for an enum forward definition. |
| QualType getIntegerType() const { return IntegerType; } |
| |
| /// \brief Set the underlying integer type. |
| void setIntegerType(QualType T) { IntegerType = T; } |
| |
| static bool classof(const Decl *D) { return D->getKind() == Enum; } |
| static bool classof(const EnumDecl *D) { return true; } |
| |
| protected: |
| /// EmitImpl - Serialize this EnumDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a EnumDecl. Called by Decl::Create. |
| static EnumDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| |
| /// RecordDecl - Represents a struct/union/class. For example: |
| /// struct X; // Forward declaration, no "body". |
| /// union Y { int A, B; }; // Has body with members A and B (FieldDecls). |
| /// This decl will be marked invalid if *any* members are invalid. |
| /// |
| class RecordDecl : public TagDecl { |
| // FIXME: This can be packed into the bitfields in Decl. |
| /// HasFlexibleArrayMember - This is true if this struct ends with a flexible |
| /// array member (e.g. int X[]) or if this union contains a struct that does. |
| /// If so, this cannot be contained in arrays or other structs as a member. |
| bool HasFlexibleArrayMember : 1; |
| |
| /// AnonymousStructOrUnion - Whether this is the type of an |
| /// anonymous struct or union. |
| bool AnonymousStructOrUnion : 1; |
| |
| protected: |
| RecordDecl(Kind DK, TagKind TK, DeclContext *DC, |
| SourceLocation L, IdentifierInfo *Id); |
| virtual ~RecordDecl(); |
| |
| public: |
| static RecordDecl *Create(ASTContext &C, TagKind TK, DeclContext *DC, |
| SourceLocation L, IdentifierInfo *Id, |
| RecordDecl* PrevDecl = 0); |
| |
| virtual void Destroy(ASTContext& C); |
| |
| bool hasFlexibleArrayMember() const { return HasFlexibleArrayMember; } |
| void setHasFlexibleArrayMember(bool V) { HasFlexibleArrayMember = V; } |
| |
| /// isAnonymousStructOrUnion - Whether this is an anonymous struct |
| /// or union. To be an anonymous struct or union, it must have been |
| /// declared without a name and there must be no objects of this |
| /// type declared, e.g., |
| /// @code |
| /// union { int i; float f; }; |
| /// @endcode |
| /// is an anonymous union but neither of the following are: |
| /// @code |
| /// union X { int i; float f; }; |
| /// union { int i; float f; } obj; |
| /// @endcode |
| bool isAnonymousStructOrUnion() const { return AnonymousStructOrUnion; } |
| void setAnonymousStructOrUnion(bool Anon) { |
| AnonymousStructOrUnion = Anon; |
| } |
| |
| /// \brief Determines whether this declaration represents the |
| /// injected class name. |
| /// |
| /// The injected class name in C++ is the name of the class that |
| /// appears inside the class itself. For example: |
| /// |
| /// \code |
| /// struct C { |
| /// // C is implicitly declared here as a synonym for the class name. |
| /// }; |
| /// |
| /// C::C c; // same as "C c;" |
| /// \endcode |
| bool isInjectedClassName() const; |
| |
| /// getDefinition - Returns the RecordDecl that actually defines this |
| /// struct/union/class. When determining whether or not a struct/union/class |
| /// is completely defined, one should use this method as opposed to |
| /// 'isDefinition'. 'isDefinition' indicates whether or not a specific |
| /// RecordDecl is defining declaration, not whether or not the record |
| /// type is defined. This method returns NULL if there is no RecordDecl |
| /// that defines the struct/union/tag. |
| RecordDecl* getDefinition(ASTContext& C) const { |
| return cast_or_null<RecordDecl>(TagDecl::getDefinition(C)); |
| } |
| |
| // Iterator access to field members. The field iterator only visits |
| // the non-static data members of this class, ignoring any static |
| // data members, functions, constructors, destructors, etc. |
| typedef specific_decl_iterator<FieldDecl> field_iterator; |
| |
| field_iterator field_begin(ASTContext &Context) const { |
| return field_iterator(decls_begin(Context)); |
| } |
| field_iterator field_end(ASTContext &Context) const { |
| return field_iterator(decls_end(Context)); |
| } |
| |
| // field_empty - Whether there are any fields (non-static data |
| // members) in this record. |
| bool field_empty(ASTContext &Context) const { |
| return field_begin(Context) == field_end(Context); |
| } |
| |
| /// completeDefinition - Notes that the definition of this type is |
| /// now complete. |
| void completeDefinition(ASTContext& C); |
| |
| static bool classof(const Decl *D) { |
| return D->getKind() >= RecordFirst && D->getKind() <= RecordLast; |
| } |
| static bool classof(const RecordDecl *D) { return true; } |
| protected: |
| /// EmitImpl - Serialize this RecordDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a RecordDecl. Called by Decl::Create. |
| static RecordDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| class FileScopeAsmDecl : public Decl { |
| StringLiteral *AsmString; |
| FileScopeAsmDecl(DeclContext *DC, SourceLocation L, StringLiteral *asmstring) |
| : Decl(FileScopeAsm, DC, L), AsmString(asmstring) {} |
| public: |
| static FileScopeAsmDecl *Create(ASTContext &C, DeclContext *DC, |
| SourceLocation L, StringLiteral *Str); |
| |
| const StringLiteral *getAsmString() const { return AsmString; } |
| StringLiteral *getAsmString() { return AsmString; } |
| static bool classof(const Decl *D) { |
| return D->getKind() == FileScopeAsm; |
| } |
| static bool classof(const FileScopeAsmDecl *D) { return true; } |
| protected: |
| /// EmitImpl - Serialize this FileScopeAsmDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a FileScopeAsmDecl. Called by Decl::Create. |
| static FileScopeAsmDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| /// BlockDecl - This represents a block literal declaration, which is like an |
| /// unnamed FunctionDecl. For example: |
| /// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } |
| /// |
| class BlockDecl : public Decl, public DeclContext { |
| /// ParamInfo - new[]'d array of pointers to ParmVarDecls for the formal |
| /// parameters of this function. This is null if a prototype or if there are |
| /// no formals. |
| ParmVarDecl **ParamInfo; |
| unsigned NumParams; |
| |
| Stmt *Body; |
| |
| protected: |
| BlockDecl(DeclContext *DC, SourceLocation CaretLoc) |
| : Decl(Block, DC, CaretLoc), DeclContext(Block), |
| ParamInfo(0), NumParams(0), Body(0) {} |
| |
| virtual ~BlockDecl(); |
| virtual void Destroy(ASTContext& C); |
| |
| public: |
| static BlockDecl *Create(ASTContext &C, DeclContext *DC, SourceLocation L); |
| |
| SourceLocation getCaretLocation() const { return getLocation(); } |
| |
| CompoundStmt *getBody() const { return (CompoundStmt*) Body; } |
| void setBody(CompoundStmt *B) { Body = (Stmt*) B; } |
| |
| // Iterator access to formal parameters. |
| unsigned param_size() const { return getNumParams(); } |
| typedef ParmVarDecl **param_iterator; |
| typedef ParmVarDecl * const *param_const_iterator; |
| |
| bool param_empty() const { return NumParams == 0; } |
| param_iterator param_begin() { return ParamInfo; } |
| param_iterator param_end() { return ParamInfo+param_size(); } |
| |
| param_const_iterator param_begin() const { return ParamInfo; } |
| param_const_iterator param_end() const { return ParamInfo+param_size(); } |
| |
| unsigned getNumParams() const; |
| const ParmVarDecl *getParamDecl(unsigned i) const { |
| assert(i < getNumParams() && "Illegal param #"); |
| return ParamInfo[i]; |
| } |
| ParmVarDecl *getParamDecl(unsigned i) { |
| assert(i < getNumParams() && "Illegal param #"); |
| return ParamInfo[i]; |
| } |
| void setParams(ASTContext& C, ParmVarDecl **NewParamInfo, unsigned NumParams); |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *D) { return D->getKind() == Block; } |
| static bool classof(const BlockDecl *D) { return true; } |
| static DeclContext *castToDeclContext(const BlockDecl *D) { |
| return static_cast<DeclContext *>(const_cast<BlockDecl*>(D)); |
| } |
| static BlockDecl *castFromDeclContext(const DeclContext *DC) { |
| return static_cast<BlockDecl *>(const_cast<DeclContext*>(DC)); |
| } |
| |
| protected: |
| /// EmitImpl - Serialize this BlockDecl. Called by Decl::Emit. |
| virtual void EmitImpl(llvm::Serializer& S) const; |
| |
| /// CreateImpl - Deserialize a BlockDecl. Called by Decl::Create. |
| static BlockDecl* CreateImpl(llvm::Deserializer& D, ASTContext& C); |
| |
| friend Decl* Decl::Create(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| /// Insertion operator for diagnostics. This allows sending NamedDecl's |
| /// into a diagnostic with <<. |
| inline const DiagnosticBuilder &operator<<(const DiagnosticBuilder &DB, |
| NamedDecl* ND) { |
| DB.AddTaggedVal(reinterpret_cast<intptr_t>(ND), Diagnostic::ak_nameddecl); |
| return DB; |
| } |
| |
| } // end namespace clang |
| |
| #endif |