| //===-- DeclBase.h - Base 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 and DeclContext interfaces. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_AST_DECLBASE_H |
| #define LLVM_CLANG_AST_DECLBASE_H |
| |
| #include "clang/AST/Attr.h" |
| #include "clang/AST/Type.h" |
| #include "clang/Basic/SourceLocation.h" |
| #include "llvm/ADT/PointerIntPair.h" |
| |
| namespace clang { |
| class DeclContext; |
| class TranslationUnitDecl; |
| class NamespaceDecl; |
| class NamedDecl; |
| class ScopedDecl; |
| class FunctionDecl; |
| class CXXRecordDecl; |
| class EnumDecl; |
| class ObjCMethodDecl; |
| class ObjCInterfaceDecl; |
| class ObjCCategoryDecl; |
| class ObjCProtocolDecl; |
| class ObjCImplementationDecl; |
| class ObjCCategoryImplDecl; |
| class LinkageSpecDecl; |
| class BlockDecl; |
| class DeclarationName; |
| |
| /// Decl - This represents one declaration (or definition), e.g. a variable, |
| /// typedef, function, struct, etc. |
| /// |
| class Decl { |
| public: |
| enum Kind { |
| // This lists the concrete classes of Decl in order of the inheritance |
| // hierarchy. This allows us to do efficient classof tests based on the |
| // enums below. The commented out names are abstract class names. |
| // [DeclContext] indicates that the class also inherits from DeclContext. |
| |
| // Decl |
| TranslationUnit, // [DeclContext] |
| // NamedDecl |
| OverloadedFunction, |
| // ScopedDecl |
| Field, |
| ObjCIvar, |
| ObjCAtDefsField, |
| Namespace, // [DeclContext] |
| // TypeDecl |
| Typedef, |
| // TagDecl // [DeclContext] |
| Enum, |
| Record, |
| CXXRecord, |
| TemplateTypeParm, |
| // ValueDecl |
| EnumConstant, |
| Function, // [DeclContext] |
| CXXMethod, |
| CXXConstructor, |
| CXXDestructor, |
| CXXConversion, |
| Var, |
| ImplicitParam, |
| CXXClassVar, |
| ParmVar, |
| OriginalParmVar, |
| NonTypeTemplateParm, |
| LinkageSpec, // [DeclContext] |
| ObjCMethod, // [DeclContext] |
| ObjCContainer, // [DeclContext] |
| ObjCCategory, |
| ObjCProtocol, |
| ObjCInterface, |
| ObjCCategoryImpl, // [DeclContext] |
| ObjCImplementation, // [DeclContext] |
| ObjCProperty, |
| ObjCCompatibleAlias, |
| ObjCClass, |
| ObjCForwardProtocol, |
| ObjCPropertyImpl, |
| FileScopeAsm, |
| Block, // [DeclContext] |
| |
| // For each non-leaf class, we now define a mapping to the first/last member |
| // of the class, to allow efficient classof. |
| NamedFirst = OverloadedFunction, NamedLast = NonTypeTemplateParm, |
| ObjCContainerFirst = ObjCContainer, ObjCContainerLast = ObjCInterface, |
| FieldFirst = Field , FieldLast = ObjCAtDefsField, |
| ScopedFirst = Field , ScopedLast = ObjCPropertyImpl, |
| TypeFirst = Typedef , TypeLast = TemplateTypeParm, |
| TagFirst = Enum , TagLast = CXXRecord, |
| RecordFirst = Record , RecordLast = CXXRecord, |
| ValueFirst = EnumConstant , ValueLast = NonTypeTemplateParm, |
| FunctionFirst = Function , FunctionLast = CXXConversion, |
| VarFirst = Var , VarLast = NonTypeTemplateParm |
| }; |
| |
| /// IdentifierNamespace - According to C99 6.2.3, there are four namespaces, |
| /// labels, tags, members and ordinary identifiers. These are meant |
| /// as bitmasks, so that searches in C++ can look into the "tag" namespace |
| /// during ordinary lookup. |
| enum IdentifierNamespace { |
| IDNS_Label = 0x1, |
| IDNS_Tag = 0x2, |
| IDNS_Member = 0x4, |
| IDNS_Ordinary = 0x8 |
| }; |
| |
| /// ObjCDeclQualifier - Qualifier used on types in method declarations |
| /// for remote messaging. They are meant for the arguments though and |
| /// applied to the Decls (ObjCMethodDecl and ParmVarDecl). |
| enum ObjCDeclQualifier { |
| OBJC_TQ_None = 0x0, |
| OBJC_TQ_In = 0x1, |
| OBJC_TQ_Inout = 0x2, |
| OBJC_TQ_Out = 0x4, |
| OBJC_TQ_Bycopy = 0x8, |
| OBJC_TQ_Byref = 0x10, |
| OBJC_TQ_Oneway = 0x20 |
| }; |
| |
| private: |
| /// Loc - The location that this decl. |
| SourceLocation Loc; |
| |
| /// DeclKind - This indicates which class this is. |
| Kind DeclKind : 8; |
| |
| /// InvalidDecl - This indicates a semantic error occurred. |
| unsigned int InvalidDecl : 1; |
| |
| /// HasAttrs - This indicates whether the decl has attributes or not. |
| unsigned int HasAttrs : 1; |
| |
| /// Implicit - Whether this declaration was implicitly generated by |
| /// the implementation rather than explicitly written by the user. |
| bool Implicit : 1; |
| |
| protected: |
| /// Access - Used by C++ decls for the access specifier. |
| // NOTE: VC++ treats enums as signed, avoid using the AccessSpecifier enum |
| unsigned Access : 2; |
| friend class CXXClassMemberWrapper; |
| |
| Decl(Kind DK, SourceLocation L) : Loc(L), DeclKind(DK), InvalidDecl(0), |
| HasAttrs(false), Implicit(false) { |
| if (Decl::CollectingStats()) addDeclKind(DK); |
| } |
| |
| virtual ~Decl(); |
| |
| public: |
| SourceLocation getLocation() const { return Loc; } |
| void setLocation(SourceLocation L) { Loc = L; } |
| |
| Kind getKind() const { return DeclKind; } |
| const char *getDeclKindName() const; |
| |
| void addAttr(Attr *attr); |
| const Attr *getAttrs() const; |
| void swapAttrs(Decl *D); |
| void invalidateAttrs(); |
| |
| template<typename T> const T *getAttr() const { |
| for (const Attr *attr = getAttrs(); attr; attr = attr->getNext()) |
| if (const T *V = dyn_cast<T>(attr)) |
| return V; |
| |
| return 0; |
| } |
| |
| /// setInvalidDecl - Indicates the Decl had a semantic error. This |
| /// allows for graceful error recovery. |
| void setInvalidDecl() { InvalidDecl = 1; } |
| bool isInvalidDecl() const { return (bool) InvalidDecl; } |
| |
| /// isImplicit - Indicates whether the declaration was implicitly |
| /// generated by the implementation. If false, this declaration |
| /// was written explicitly in the source code. |
| bool isImplicit() const { return Implicit; } |
| void setImplicit(bool I = true) { Implicit = I; } |
| |
| IdentifierNamespace getIdentifierNamespace() const { |
| switch (DeclKind) { |
| default: |
| if (DeclKind >= FunctionFirst && DeclKind <= FunctionLast) |
| return IDNS_Ordinary; |
| assert(0 && "Unknown decl kind!"); |
| case ImplicitParam: |
| case Typedef: |
| case Var: |
| case ParmVar: |
| case OriginalParmVar: |
| case EnumConstant: |
| case NonTypeTemplateParm: |
| case ObjCInterface: |
| case ObjCCompatibleAlias: |
| case OverloadedFunction: |
| case CXXMethod: |
| case CXXConversion: |
| case CXXClassVar: |
| return IDNS_Ordinary; |
| |
| case Field: |
| case ObjCAtDefsField: |
| case ObjCIvar: |
| return IDNS_Member; |
| |
| case Record: |
| case CXXRecord: |
| case TemplateTypeParm: |
| case Enum: |
| return IDNS_Tag; |
| case Namespace: |
| return IdentifierNamespace(IDNS_Tag | IDNS_Ordinary); |
| } |
| } |
| |
| bool isInIdentifierNamespace(unsigned NS) const { |
| return getIdentifierNamespace() & NS; |
| } |
| |
| // getBody - If this Decl represents a declaration for a body of code, |
| // such as a function or method definition, this method returns the top-level |
| // Stmt* of that body. Otherwise this method returns null. |
| virtual Stmt* getBody() const { return 0; } |
| |
| // global temp stats (until we have a per-module visitor) |
| static void addDeclKind(Kind k); |
| static bool CollectingStats(bool Enable = false); |
| static void PrintStats(); |
| |
| /// isTemplateParameter - Determines whether this declartion is a |
| /// template parameter. |
| bool isTemplateParameter() const; |
| |
| // Implement isa/cast/dyncast/etc. |
| static bool classof(const Decl *) { return true; } |
| static DeclContext *castToDeclContext(const Decl *); |
| static Decl *castFromDeclContext(const DeclContext *); |
| |
| /// Emit - Serialize this Decl to Bitcode. |
| void Emit(llvm::Serializer& S) const; |
| |
| /// Create - Deserialize a Decl from Bitcode. |
| static Decl* Create(llvm::Deserializer& D, ASTContext& C); |
| |
| /// Destroy - Call destructors and release memory. |
| virtual void Destroy(ASTContext& C); |
| |
| protected: |
| /// EmitImpl - Provides the subclass-specific serialization logic for |
| /// serializing out a decl. |
| virtual void EmitImpl(llvm::Serializer& S) const { |
| // FIXME: This will eventually be a pure virtual function. |
| assert (false && "Not implemented."); |
| } |
| |
| void EmitInRec(llvm::Serializer& S) const; |
| void ReadInRec(llvm::Deserializer& D, ASTContext& C); |
| }; |
| |
| /// DeclContext - This is used only as base class of specific decl types that |
| /// can act as declaration contexts. These decls are: |
| /// |
| /// TranslationUnitDecl |
| /// NamespaceDecl |
| /// FunctionDecl |
| /// RecordDecl/CXXRecordDecl |
| /// EnumDecl |
| /// ObjCMethodDecl |
| /// ObjCInterfaceDecl |
| /// LinkageSpecDecl |
| /// BlockDecl |
| class DeclContext { |
| /// DeclKind - This indicates which class this is. |
| Decl::Kind DeclKind : 8; |
| |
| /// LookupPtrKind - Describes what kind of pointer LookupPtr |
| /// actually is. |
| enum LookupPtrKind { |
| /// LookupIsMap - Indicates that LookupPtr is actually a map. |
| LookupIsMap = 7 |
| }; |
| |
| /// LookupPtr - Pointer to a data structure used to lookup |
| /// declarations within this context. If the context contains fewer |
| /// than seven declarations, the number of declarations is provided |
| /// in the 3 lowest-order bits and the upper bits are treated as a |
| /// pointer to an array of ScopedDecl pointers. If the context |
| /// contains seven or more declarations, the upper bits are treated |
| /// as a pointer to a DenseMap<DeclarationName, std::vector<ScopedDecl>>. |
| /// FIXME: We need a better data structure for this. |
| llvm::PointerIntPair<void*, 3> LookupPtr; |
| |
| /// FirstDecl - The first declaration stored within this declaration |
| /// context. |
| ScopedDecl *FirstDecl; |
| |
| /// LastDecl - The last declaration stored within this declaration |
| /// context. FIXME: We could probably cache this value somewhere |
| /// outside of the DeclContext, to reduce the size of DeclContext by |
| /// another pointer. |
| ScopedDecl *LastDecl; |
| |
| // Used in the CastTo template to get the DeclKind |
| // from a Decl or a DeclContext. DeclContext doesn't have a getKind() method |
| // to avoid 'ambiguous access' compiler errors. |
| template<typename T> struct KindTrait { |
| static Decl::Kind getKind(const T *D) { return D->getKind(); } |
| }; |
| |
| // Used only by the ToDecl and FromDecl methods |
| template<typename To, typename From> |
| static To *CastTo(const From *D) { |
| Decl::Kind DK = KindTrait<From>::getKind(D); |
| switch(DK) { |
| case Decl::TranslationUnit: |
| return static_cast<TranslationUnitDecl*>(const_cast<From*>(D)); |
| case Decl::Namespace: |
| return static_cast<NamespaceDecl*>(const_cast<From*>(D)); |
| case Decl::Enum: |
| return static_cast<EnumDecl*>(const_cast<From*>(D)); |
| case Decl::Record: |
| return static_cast<RecordDecl*>(const_cast<From*>(D)); |
| case Decl::CXXRecord: |
| return static_cast<CXXRecordDecl*>(const_cast<From*>(D)); |
| case Decl::ObjCMethod: |
| return static_cast<ObjCMethodDecl*>(const_cast<From*>(D)); |
| case Decl::ObjCInterface: |
| return static_cast<ObjCInterfaceDecl*>(const_cast<From*>(D)); |
| case Decl::ObjCCategory: |
| return static_cast<ObjCCategoryDecl*>(const_cast<From*>(D)); |
| case Decl::ObjCProtocol: |
| return static_cast<ObjCProtocolDecl*>(const_cast<From*>(D)); |
| case Decl::ObjCImplementation: |
| return static_cast<ObjCImplementationDecl*>(const_cast<From*>(D)); |
| case Decl::ObjCCategoryImpl: |
| return static_cast<ObjCCategoryImplDecl*>(const_cast<From*>(D)); |
| case Decl::LinkageSpec: |
| return static_cast<LinkageSpecDecl*>(const_cast<From*>(D)); |
| case Decl::Block: |
| return static_cast<BlockDecl*>(const_cast<From*>(D)); |
| default: |
| if (DK >= Decl::FunctionFirst && DK <= Decl::FunctionLast) |
| return static_cast<FunctionDecl*>(const_cast<From*>(D)); |
| |
| assert(false && "a decl that inherits DeclContext isn't handled"); |
| return 0; |
| } |
| } |
| |
| /// isLookupMap - Determine if the lookup structure is a |
| /// DenseMap. Othewise, it is an array. |
| bool isLookupMap() const { return LookupPtr.getInt() == LookupIsMap; } |
| |
| protected: |
| DeclContext(Decl::Kind K) |
| : DeclKind(K), LookupPtr(), FirstDecl(0), LastDecl(0) { } |
| |
| void DestroyDecls(ASTContext &C); |
| |
| public: |
| ~DeclContext(); |
| |
| Decl::Kind getDeclKind() const { |
| return DeclKind; |
| } |
| |
| /// getParent - Returns the containing DeclContext if this is a ScopedDecl, |
| /// else returns NULL. |
| const DeclContext *getParent() const; |
| DeclContext *getParent() { |
| return const_cast<DeclContext*>( |
| const_cast<const DeclContext*>(this)->getParent()); |
| } |
| |
| /// getLexicalParent - Returns the containing lexical DeclContext. May be |
| /// different from getParent, e.g.: |
| /// |
| /// namespace A { |
| /// struct S; |
| /// } |
| /// struct A::S {}; // getParent() == namespace 'A' |
| /// // getLexicalParent() == translation unit |
| /// |
| const DeclContext *getLexicalParent() const; |
| DeclContext *getLexicalParent() { |
| return const_cast<DeclContext*>( |
| const_cast<const DeclContext*>(this)->getLexicalParent()); |
| } |
| |
| bool isFunctionOrMethod() const { |
| switch (DeclKind) { |
| case Decl::Block: |
| case Decl::ObjCMethod: |
| return true; |
| |
| default: |
| if (DeclKind >= Decl::FunctionFirst && DeclKind <= Decl::FunctionLast) |
| return true; |
| return false; |
| } |
| } |
| |
| bool isFileContext() const { |
| return DeclKind == Decl::TranslationUnit || DeclKind == Decl::Namespace; |
| } |
| |
| bool isRecord() const { |
| return DeclKind == Decl::Record || DeclKind == Decl::CXXRecord; |
| } |
| |
| bool isNamespace() const { |
| return DeclKind == Decl::Namespace; |
| } |
| |
| /// isTransparentContext - Determines whether this context is a |
| /// "transparent" context, meaning that the members declared in this |
| /// context are semantically declared in the nearest enclosing |
| /// non-transparent (opaque) context but are lexically declared in |
| /// this context. For example, consider the enumerators of an |
| /// enumeration type: |
| /// @code |
| /// enum E { |
| /// Val1 |
| /// }; |
| /// @endcode |
| /// Here, E is a transparent context, so its enumerator (Val1) will |
| /// appear (semantically) that it is in the same context of E. |
| /// Examples of transparent contexts include: enumerations (except for |
| /// C++0x scoped enums), C++ linkage specifications, and C++0x |
| /// inline namespaces. |
| bool isTransparentContext() const; |
| |
| bool Encloses(DeclContext *DC) const { |
| for (; DC; DC = DC->getParent()) |
| if (DC == this) |
| return true; |
| return false; |
| } |
| |
| /// getPrimaryContext - There may be many different |
| /// declarations of the same entity (including forward declarations |
| /// of classes, multiple definitions of namespaces, etc.), each with |
| /// a different set of declarations. This routine returns the |
| /// "primary" DeclContext structure, which will contain the |
| /// information needed to perform name lookup into this context. |
| DeclContext *getPrimaryContext(); |
| |
| /// getLookupContext - Retrieve the innermost non-transparent |
| /// context of this context, which corresponds to the innermost |
| /// location from which name lookup can find the entities in this |
| /// context. |
| DeclContext *getLookupContext() { |
| return const_cast<DeclContext *>( |
| const_cast<const DeclContext *>(this)->getLookupContext()); |
| } |
| const DeclContext *getLookupContext() const; |
| |
| /// getNextContext - If this is a DeclContext that may have other |
| /// DeclContexts that are semantically connected but syntactically |
| /// different, such as C++ namespaces, this routine retrieves the |
| /// next DeclContext in the link. Iteration through the chain of |
| /// DeclContexts should begin at the primary DeclContext and |
| /// continue until this function returns NULL. For example, given: |
| /// @code |
| /// namespace N { |
| /// int x; |
| /// } |
| /// namespace N { |
| /// int y; |
| /// } |
| /// @endcode |
| /// The first occurrence of namespace N will be the primary |
| /// DeclContext. Its getNextContext will return the second |
| /// occurrence of namespace N. |
| DeclContext *getNextContext(); |
| |
| /// decl_iterator - Iterates through the declarations stored |
| /// within this context. |
| class decl_iterator { |
| /// Current - The current declaration. |
| ScopedDecl *Current; |
| |
| public: |
| typedef ScopedDecl* value_type; |
| typedef ScopedDecl* reference; |
| typedef ScopedDecl* pointer; |
| typedef std::forward_iterator_tag iterator_category; |
| typedef std::ptrdiff_t difference_type; |
| |
| decl_iterator() : Current(0) { } |
| explicit decl_iterator(ScopedDecl *C) : Current(C) { } |
| |
| reference operator*() const { return Current; } |
| pointer operator->() const { return Current; } |
| |
| decl_iterator& operator++(); |
| |
| decl_iterator operator++(int) { |
| decl_iterator tmp(*this); |
| ++(*this); |
| return tmp; |
| } |
| |
| friend bool operator==(decl_iterator x, decl_iterator y) { |
| return x.Current == y.Current; |
| } |
| friend bool operator!=(decl_iterator x, decl_iterator y) { |
| return x.Current != y.Current; |
| } |
| }; |
| |
| /// decls_begin/decls_end - Iterate over the declarations stored in |
| /// this context. |
| decl_iterator decls_begin() const { return decl_iterator(FirstDecl); } |
| decl_iterator decls_end() const { return decl_iterator(); } |
| |
| /// specific_decl_iterator - Iterates over a subrange of |
| /// declarations stored in a DeclContext, providing only those that |
| /// are of type SpecificDecl (or a class derived from it) and, |
| /// optionally, that meet some additional run-time criteria. This |
| /// iterator is used, for example, to provide iteration over just |
| /// the fields within a RecordDecl (with SpecificDecl = FieldDecl) |
| /// or the instance methods within an Objective-C interface (with |
| /// SpecificDecl = ObjCMethodDecl and using |
| /// ObjCMethodDecl::isInstanceMethod as the run-time criteria). |
| template<typename SpecificDecl> |
| class specific_decl_iterator { |
| /// Current - The current, underlying declaration iterator, which |
| /// will either be the same as End or will point to a declaration of |
| /// type SpecificDecl. |
| DeclContext::decl_iterator Current; |
| |
| /// End - One past the last declaration within the DeclContext. |
| DeclContext::decl_iterator End; |
| |
| /// Acceptable - If non-NULL, points to a member function that |
| /// will determine if a particular declaration of type |
| /// SpecificDecl should be visited by the iteration. |
| bool (SpecificDecl::*Acceptable)() const; |
| |
| /// SkipToNextDecl - Advances the current position up to the next |
| /// declaration of type SpecificDecl that also meets the criteria |
| /// required by Acceptable. |
| void SkipToNextDecl() { |
| while (Current != End && |
| (!isa<SpecificDecl>(*Current) || |
| (Acceptable && !(cast<SpecificDecl>(*Current)->*Acceptable)()))) |
| ++Current; |
| } |
| |
| public: |
| typedef SpecificDecl* value_type; |
| typedef SpecificDecl* reference; |
| typedef SpecificDecl* pointer; |
| typedef std::iterator_traits<DeclContext::decl_iterator>::difference_type |
| difference_type; |
| typedef std::forward_iterator_tag iterator_category; |
| |
| specific_decl_iterator() : Current(), End(), Acceptable(0) { } |
| |
| /// specific_decl_iterator - Construct a new iterator over a |
| /// subset of the declarations in [C, E). If A is non-NULL, it is |
| /// a pointer to a member function of SpecificDecl that should |
| /// return true for all of the SpecificDecl instances that will be |
| /// in the subset of iterators. For example, if you want |
| /// Objective-C instance methods, SpecificDecl will be |
| /// ObjCMethodDecl and A will be &ObjCMethodDecl::isInstanceMethod. |
| specific_decl_iterator(DeclContext::decl_iterator C, |
| DeclContext::decl_iterator E, |
| bool (SpecificDecl::*A)() const = 0) |
| : Current(C), End(E), Acceptable(A) { |
| SkipToNextDecl(); |
| } |
| |
| reference operator*() const { return cast<SpecificDecl>(*Current); } |
| pointer operator->() const { return cast<SpecificDecl>(*Current); } |
| |
| specific_decl_iterator& operator++() { |
| ++Current; |
| SkipToNextDecl(); |
| return *this; |
| } |
| |
| specific_decl_iterator operator++(int) { |
| specific_decl_iterator tmp(*this); |
| ++(*this); |
| return tmp; |
| } |
| |
| friend bool |
| operator==(const specific_decl_iterator& x, const specific_decl_iterator& y) { |
| return x.Current == y.Current; |
| } |
| |
| friend bool |
| operator!=(const specific_decl_iterator& x, const specific_decl_iterator& y) { |
| return x.Current != y.Current; |
| } |
| }; |
| |
| /// addDecl - Add the declaration D to this scope, and into data structure |
| /// for name lookup. |
| void addDecl(ScopedDecl *D); |
| |
| void buildLookup(DeclContext *DCtx); |
| |
| /// lookup_iterator - An iterator that provides access to the results |
| /// of looking up a name within this context. |
| typedef ScopedDecl **lookup_iterator; |
| |
| /// lookup_const_iterator - An iterator that provides non-mutable |
| /// access to the results of lookup up a name within this context. |
| typedef ScopedDecl * const * lookup_const_iterator; |
| |
| typedef std::pair<lookup_iterator, lookup_iterator> lookup_result; |
| typedef std::pair<lookup_const_iterator, lookup_const_iterator> |
| lookup_const_result; |
| |
| /// lookup - Find the declarations (if any) with the given Name in |
| /// this context. Returns a range of iterators that contains all of |
| /// the declarations with this name (which may be 0, 1, or more |
| /// declarations). If two declarations are returned, the declaration |
| /// in the "ordinary" identifier namespace will precede the |
| /// declaration in the "tag" identifier namespace (e.g., values |
| /// before types). Note that this routine will not look into parent |
| /// contexts. |
| lookup_result lookup(DeclarationName Name); |
| lookup_const_result lookup(DeclarationName Name) const; |
| |
| /// insert - Insert the declaration D into this context. Up to two |
| /// declarations with the same name can be inserted into a single |
| /// declaration context, one in the "tag" namespace (e.g., for |
| /// classes and enums) and one in the "ordinary" namespaces (e.g., |
| /// for variables, functions, and other values). Note that, if there |
| /// is already a declaration with the same name and identifier |
| /// namespace, D will replace it. It is up to the caller to ensure |
| /// that this replacement is semantically correct, e.g., that |
| /// declarations are only replaced by later declarations of the same |
| /// entity and not a declaration of some other kind of entity. |
| void insert(ScopedDecl *D); |
| |
| static bool classof(const Decl *D) { |
| switch (D->getKind()) { |
| case Decl::TranslationUnit: |
| case Decl::Namespace: |
| case Decl::Enum: |
| case Decl::Record: |
| case Decl::CXXRecord: |
| case Decl::ObjCMethod: |
| case Decl::ObjCInterface: |
| case Decl::ObjCCategory: |
| case Decl::ObjCProtocol: |
| case Decl::ObjCImplementation: |
| case Decl::ObjCCategoryImpl: |
| case Decl::LinkageSpec: |
| case Decl::Block: |
| return true; |
| default: |
| if (D->getKind() >= Decl::FunctionFirst && |
| D->getKind() <= Decl::FunctionLast) |
| return true; |
| return false; |
| } |
| } |
| static bool classof(const DeclContext *D) { return true; } |
| static bool classof(const TranslationUnitDecl *D) { return true; } |
| static bool classof(const NamespaceDecl *D) { return true; } |
| static bool classof(const FunctionDecl *D) { return true; } |
| static bool classof(const RecordDecl *D) { return true; } |
| static bool classof(const CXXRecordDecl *D) { return true; } |
| static bool classof(const EnumDecl *D) { return true; } |
| static bool classof(const ObjCMethodDecl *D) { return true; } |
| static bool classof(const ObjCInterfaceDecl *D) { return true; } |
| static bool classof(const ObjCCategoryDecl *D) { return true; } |
| static bool classof(const ObjCProtocolDecl *D) { return true; } |
| static bool classof(const ObjCImplementationDecl *D) { return true; } |
| static bool classof(const ObjCCategoryImplDecl *D) { return true; } |
| static bool classof(const LinkageSpecDecl *D) { return true; } |
| static bool classof(const BlockDecl *D) { return true; } |
| |
| private: |
| void insertImpl(ScopedDecl *D); |
| |
| void EmitOutRec(llvm::Serializer& S) const; |
| void ReadOutRec(llvm::Deserializer& D, ASTContext& C); |
| |
| friend class Decl; |
| }; |
| |
| template<> struct DeclContext::KindTrait<DeclContext> { |
| static Decl::Kind getKind(const DeclContext *D) { return D->DeclKind; } |
| }; |
| |
| inline bool Decl::isTemplateParameter() const { |
| return getKind() == TemplateTypeParm || getKind() == NonTypeTemplateParm; |
| } |
| |
| } // end clang. |
| |
| namespace llvm { |
| |
| /// Implement a isa_impl_wrap specialization to check whether a DeclContext is |
| /// a specific Decl. |
| template<class ToTy> |
| struct isa_impl_wrap<ToTy, |
| const ::clang::DeclContext,const ::clang::DeclContext> { |
| static bool doit(const ::clang::DeclContext &Val) { |
| return ToTy::classof(::clang::Decl::castFromDeclContext(&Val)); |
| } |
| }; |
| template<class ToTy> |
| struct isa_impl_wrap<ToTy, ::clang::DeclContext, ::clang::DeclContext> |
| : public isa_impl_wrap<ToTy, |
| const ::clang::DeclContext,const ::clang::DeclContext> {}; |
| |
| /// Implement cast_convert_val for Decl -> DeclContext conversions. |
| template<class FromTy> |
| struct cast_convert_val< ::clang::DeclContext, FromTy, FromTy> { |
| static ::clang::DeclContext &doit(const FromTy &Val) { |
| return *FromTy::castToDeclContext(&Val); |
| } |
| }; |
| |
| template<class FromTy> |
| struct cast_convert_val< ::clang::DeclContext, FromTy*, FromTy*> { |
| static ::clang::DeclContext *doit(const FromTy *Val) { |
| return FromTy::castToDeclContext(Val); |
| } |
| }; |
| |
| template<class FromTy> |
| struct cast_convert_val< const ::clang::DeclContext, FromTy, FromTy> { |
| static const ::clang::DeclContext &doit(const FromTy &Val) { |
| return *FromTy::castToDeclContext(&Val); |
| } |
| }; |
| |
| template<class FromTy> |
| struct cast_convert_val< const ::clang::DeclContext, FromTy*, FromTy*> { |
| static const ::clang::DeclContext *doit(const FromTy *Val) { |
| return FromTy::castToDeclContext(Val); |
| } |
| }; |
| |
| /// Implement cast_convert_val for DeclContext -> Decl conversions. |
| template<class ToTy> |
| struct cast_convert_val<ToTy, |
| const ::clang::DeclContext,const ::clang::DeclContext> { |
| static ToTy &doit(const ::clang::DeclContext &Val) { |
| return *reinterpret_cast<ToTy*>(ToTy::castFromDeclContext(&Val)); |
| } |
| }; |
| template<class ToTy> |
| struct cast_convert_val<ToTy, ::clang::DeclContext, ::clang::DeclContext> |
| : public cast_convert_val<ToTy, |
| const ::clang::DeclContext,const ::clang::DeclContext> {}; |
| |
| template<class ToTy> |
| struct cast_convert_val<ToTy, |
| const ::clang::DeclContext*, const ::clang::DeclContext*> { |
| static ToTy *doit(const ::clang::DeclContext *Val) { |
| return reinterpret_cast<ToTy*>(ToTy::castFromDeclContext(Val)); |
| } |
| }; |
| template<class ToTy> |
| struct cast_convert_val<ToTy, ::clang::DeclContext*, ::clang::DeclContext*> |
| : public cast_convert_val<ToTy, |
| const ::clang::DeclContext*,const ::clang::DeclContext*> {}; |
| |
| } // end namespace llvm |
| |
| #endif |