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Diffstat (limited to 'include/clang/AST/DeclObjC.h')
| -rw-r--r-- | include/clang/AST/DeclObjC.h | 2742 |
1 files changed, 0 insertions, 2742 deletions
diff --git a/include/clang/AST/DeclObjC.h b/include/clang/AST/DeclObjC.h deleted file mode 100644 index f46078f..0000000 --- a/include/clang/AST/DeclObjC.h +++ /dev/null @@ -1,2742 +0,0 @@ -//===--- DeclObjC.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 DeclObjC interface and subclasses. -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_CLANG_AST_DECLOBJC_H -#define LLVM_CLANG_AST_DECLOBJC_H - -#include "clang/AST/Decl.h" -#include "clang/AST/SelectorLocationsKind.h" -#include "llvm/ADT/STLExtras.h" -#include "llvm/Support/Compiler.h" - -namespace clang { -class Expr; -class Stmt; -class FunctionDecl; -class RecordDecl; -class ObjCIvarDecl; -class ObjCMethodDecl; -class ObjCProtocolDecl; -class ObjCCategoryDecl; -class ObjCPropertyDecl; -class ObjCPropertyImplDecl; -class CXXCtorInitializer; - -class ObjCListBase { - ObjCListBase(const ObjCListBase &) = delete; - void operator=(const ObjCListBase &) = delete; -protected: - /// List is an array of pointers to objects that are not owned by this object. - void **List; - unsigned NumElts; - -public: - ObjCListBase() : List(nullptr), NumElts(0) {} - unsigned size() const { return NumElts; } - bool empty() const { return NumElts == 0; } - -protected: - void set(void *const* InList, unsigned Elts, ASTContext &Ctx); -}; - - -/// ObjCList - This is a simple template class used to hold various lists of -/// decls etc, which is heavily used by the ObjC front-end. This only use case -/// this supports is setting the list all at once and then reading elements out -/// of it. -template <typename T> -class ObjCList : public ObjCListBase { -public: - void set(T* const* InList, unsigned Elts, ASTContext &Ctx) { - ObjCListBase::set(reinterpret_cast<void*const*>(InList), Elts, Ctx); - } - - typedef T* const * iterator; - iterator begin() const { return (iterator)List; } - iterator end() const { return (iterator)List+NumElts; } - - T* operator[](unsigned Idx) const { - assert(Idx < NumElts && "Invalid access"); - return (T*)List[Idx]; - } -}; - -/// \brief A list of Objective-C protocols, along with the source -/// locations at which they were referenced. -class ObjCProtocolList : public ObjCList<ObjCProtocolDecl> { - SourceLocation *Locations; - - using ObjCList<ObjCProtocolDecl>::set; - -public: - ObjCProtocolList() : ObjCList<ObjCProtocolDecl>(), Locations(nullptr) { } - - typedef const SourceLocation *loc_iterator; - loc_iterator loc_begin() const { return Locations; } - loc_iterator loc_end() const { return Locations + size(); } - - void set(ObjCProtocolDecl* const* InList, unsigned Elts, - const SourceLocation *Locs, ASTContext &Ctx); -}; - - -/// ObjCMethodDecl - Represents an instance or class method declaration. -/// ObjC methods can be declared within 4 contexts: class interfaces, -/// categories, protocols, and class implementations. While C++ member -/// functions leverage C syntax, Objective-C method syntax is modeled after -/// Smalltalk (using colons to specify argument types/expressions). -/// Here are some brief examples: -/// -/// Setter/getter instance methods: -/// - (void)setMenu:(NSMenu *)menu; -/// - (NSMenu *)menu; -/// -/// Instance method that takes 2 NSView arguments: -/// - (void)replaceSubview:(NSView *)oldView with:(NSView *)newView; -/// -/// Getter class method: -/// + (NSMenu *)defaultMenu; -/// -/// A selector represents a unique name for a method. The selector names for -/// the above methods are setMenu:, menu, replaceSubview:with:, and defaultMenu. -/// -class ObjCMethodDecl : public NamedDecl, public DeclContext { -public: - enum ImplementationControl { None, Required, Optional }; -private: - // The conventional meaning of this method; an ObjCMethodFamily. - // This is not serialized; instead, it is computed on demand and - // cached. - mutable unsigned Family : ObjCMethodFamilyBitWidth; - - /// instance (true) or class (false) method. - unsigned IsInstance : 1; - unsigned IsVariadic : 1; - - /// True if this method is the getter or setter for an explicit property. - unsigned IsPropertyAccessor : 1; - - // Method has a definition. - unsigned IsDefined : 1; - - /// \brief Method redeclaration in the same interface. - unsigned IsRedeclaration : 1; - - /// \brief Is redeclared in the same interface. - mutable unsigned HasRedeclaration : 1; - - // NOTE: VC++ treats enums as signed, avoid using ImplementationControl enum - /// \@required/\@optional - unsigned DeclImplementation : 2; - - // NOTE: VC++ treats enums as signed, avoid using the ObjCDeclQualifier enum - /// in, inout, etc. - unsigned objcDeclQualifier : 7; - - /// \brief Indicates whether this method has a related result type. - unsigned RelatedResultType : 1; - - /// \brief Whether the locations of the selector identifiers are in a - /// "standard" position, a enum SelectorLocationsKind. - unsigned SelLocsKind : 2; - - /// \brief Whether this method overrides any other in the class hierarchy. - /// - /// A method is said to override any method in the class's - /// base classes, its protocols, or its categories' protocols, that has - /// the same selector and is of the same kind (class or instance). - /// A method in an implementation is not considered as overriding the same - /// method in the interface or its categories. - unsigned IsOverriding : 1; - - /// \brief Indicates if the method was a definition but its body was skipped. - unsigned HasSkippedBody : 1; - - // Return type of this method. - QualType MethodDeclType; - - // Type source information for the return type. - TypeSourceInfo *ReturnTInfo; - - /// \brief Array of ParmVarDecls for the formal parameters of this method - /// and optionally followed by selector locations. - void *ParamsAndSelLocs; - unsigned NumParams; - - /// List of attributes for this method declaration. - SourceLocation DeclEndLoc; // the location of the ';' or '{'. - - // The following are only used for method definitions, null otherwise. - LazyDeclStmtPtr Body; - - /// SelfDecl - Decl for the implicit self parameter. This is lazily - /// constructed by createImplicitParams. - ImplicitParamDecl *SelfDecl; - /// CmdDecl - Decl for the implicit _cmd parameter. This is lazily - /// constructed by createImplicitParams. - ImplicitParamDecl *CmdDecl; - - SelectorLocationsKind getSelLocsKind() const { - return (SelectorLocationsKind)SelLocsKind; - } - bool hasStandardSelLocs() const { - return getSelLocsKind() != SelLoc_NonStandard; - } - - /// \brief Get a pointer to the stored selector identifiers locations array. - /// No locations will be stored if HasStandardSelLocs is true. - SourceLocation *getStoredSelLocs() { - return reinterpret_cast<SourceLocation*>(getParams() + NumParams); - } - const SourceLocation *getStoredSelLocs() const { - return reinterpret_cast<const SourceLocation*>(getParams() + NumParams); - } - - /// \brief Get a pointer to the stored selector identifiers locations array. - /// No locations will be stored if HasStandardSelLocs is true. - ParmVarDecl **getParams() { - return reinterpret_cast<ParmVarDecl **>(ParamsAndSelLocs); - } - const ParmVarDecl *const *getParams() const { - return reinterpret_cast<const ParmVarDecl *const *>(ParamsAndSelLocs); - } - - /// \brief Get the number of stored selector identifiers locations. - /// No locations will be stored if HasStandardSelLocs is true. - unsigned getNumStoredSelLocs() const { - if (hasStandardSelLocs()) - return 0; - return getNumSelectorLocs(); - } - - void setParamsAndSelLocs(ASTContext &C, - ArrayRef<ParmVarDecl*> Params, - ArrayRef<SourceLocation> SelLocs); - - ObjCMethodDecl(SourceLocation beginLoc, SourceLocation endLoc, - Selector SelInfo, QualType T, TypeSourceInfo *ReturnTInfo, - DeclContext *contextDecl, bool isInstance = true, - bool isVariadic = false, bool isPropertyAccessor = false, - bool isImplicitlyDeclared = false, bool isDefined = false, - ImplementationControl impControl = None, - bool HasRelatedResultType = false) - : NamedDecl(ObjCMethod, contextDecl, beginLoc, SelInfo), - DeclContext(ObjCMethod), Family(InvalidObjCMethodFamily), - IsInstance(isInstance), IsVariadic(isVariadic), - IsPropertyAccessor(isPropertyAccessor), IsDefined(isDefined), - IsRedeclaration(0), HasRedeclaration(0), DeclImplementation(impControl), - objcDeclQualifier(OBJC_TQ_None), - RelatedResultType(HasRelatedResultType), - SelLocsKind(SelLoc_StandardNoSpace), IsOverriding(0), HasSkippedBody(0), - MethodDeclType(T), ReturnTInfo(ReturnTInfo), ParamsAndSelLocs(nullptr), - NumParams(0), DeclEndLoc(endLoc), Body(), SelfDecl(nullptr), - CmdDecl(nullptr) { - setImplicit(isImplicitlyDeclared); - } - - /// \brief A definition will return its interface declaration. - /// An interface declaration will return its definition. - /// Otherwise it will return itself. - ObjCMethodDecl *getNextRedeclarationImpl() override; - -public: - static ObjCMethodDecl * - Create(ASTContext &C, SourceLocation beginLoc, SourceLocation endLoc, - Selector SelInfo, QualType T, TypeSourceInfo *ReturnTInfo, - DeclContext *contextDecl, bool isInstance = true, - bool isVariadic = false, bool isPropertyAccessor = false, - bool isImplicitlyDeclared = false, bool isDefined = false, - ImplementationControl impControl = None, - bool HasRelatedResultType = false); - - static ObjCMethodDecl *CreateDeserialized(ASTContext &C, unsigned ID); - - ObjCMethodDecl *getCanonicalDecl() override; - const ObjCMethodDecl *getCanonicalDecl() const { - return const_cast<ObjCMethodDecl*>(this)->getCanonicalDecl(); - } - - ObjCDeclQualifier getObjCDeclQualifier() const { - return ObjCDeclQualifier(objcDeclQualifier); - } - void setObjCDeclQualifier(ObjCDeclQualifier QV) { objcDeclQualifier = QV; } - - /// \brief Determine whether this method has a result type that is related - /// to the message receiver's type. - bool hasRelatedResultType() const { return RelatedResultType; } - - /// \brief Note whether this method has a related result type. - void SetRelatedResultType(bool RRT = true) { RelatedResultType = RRT; } - - /// \brief True if this is a method redeclaration in the same interface. - bool isRedeclaration() const { return IsRedeclaration; } - void setAsRedeclaration(const ObjCMethodDecl *PrevMethod); - - /// \brief Returns the location where the declarator ends. It will be - /// the location of ';' for a method declaration and the location of '{' - /// for a method definition. - SourceLocation getDeclaratorEndLoc() const { return DeclEndLoc; } - - // Location information, modeled after the Stmt API. - SourceLocation getLocStart() const LLVM_READONLY { return getLocation(); } - SourceLocation getLocEnd() const LLVM_READONLY; - SourceRange getSourceRange() const override LLVM_READONLY { - return SourceRange(getLocation(), getLocEnd()); - } - - SourceLocation getSelectorStartLoc() const { - if (isImplicit()) - return getLocStart(); - return getSelectorLoc(0); - } - SourceLocation getSelectorLoc(unsigned Index) const { - assert(Index < getNumSelectorLocs() && "Index out of range!"); - if (hasStandardSelLocs()) - return getStandardSelectorLoc(Index, getSelector(), - getSelLocsKind() == SelLoc_StandardWithSpace, - parameters(), - DeclEndLoc); - return getStoredSelLocs()[Index]; - } - - void getSelectorLocs(SmallVectorImpl<SourceLocation> &SelLocs) const; - - unsigned getNumSelectorLocs() const { - if (isImplicit()) - return 0; - Selector Sel = getSelector(); - if (Sel.isUnarySelector()) - return 1; - return Sel.getNumArgs(); - } - - ObjCInterfaceDecl *getClassInterface(); - const ObjCInterfaceDecl *getClassInterface() const { - return const_cast<ObjCMethodDecl*>(this)->getClassInterface(); - } - - Selector getSelector() const { return getDeclName().getObjCSelector(); } - - QualType getReturnType() const { return MethodDeclType; } - void setReturnType(QualType T) { MethodDeclType = T; } - SourceRange getReturnTypeSourceRange() const; - - /// \brief Determine the type of an expression that sends a message to this - /// function. This replaces the type parameters with the types they would - /// get if the receiver was parameterless (e.g. it may replace the type - /// parameter with 'id'). - QualType getSendResultType() const; - - /// Determine the type of an expression that sends a message to this - /// function with the given receiver type. - QualType getSendResultType(QualType receiverType) const; - - TypeSourceInfo *getReturnTypeSourceInfo() const { return ReturnTInfo; } - void setReturnTypeSourceInfo(TypeSourceInfo *TInfo) { ReturnTInfo = TInfo; } - - // Iterator access to formal parameters. - unsigned param_size() const { return NumParams; } - typedef const ParmVarDecl *const *param_const_iterator; - typedef ParmVarDecl *const *param_iterator; - typedef llvm::iterator_range<param_iterator> param_range; - typedef llvm::iterator_range<param_const_iterator> param_const_range; - - param_range params() { return param_range(param_begin(), param_end()); } - param_const_range params() const { - return param_const_range(param_begin(), param_end()); - } - - param_const_iterator param_begin() const { - return param_const_iterator(getParams()); - } - param_const_iterator param_end() const { - return param_const_iterator(getParams() + NumParams); - } - param_iterator param_begin() { return param_iterator(getParams()); } - param_iterator param_end() { return param_iterator(getParams() + NumParams); } - - // This method returns and of the parameters which are part of the selector - // name mangling requirements. - param_const_iterator sel_param_end() const { - return param_begin() + getSelector().getNumArgs(); - } - - // ArrayRef access to formal parameters. This should eventually - // replace the iterator interface above. - ArrayRef<ParmVarDecl*> parameters() const { - return llvm::makeArrayRef(const_cast<ParmVarDecl**>(getParams()), - NumParams); - } - - /// \brief Sets the method's parameters and selector source locations. - /// If the method is implicit (not coming from source) \p SelLocs is - /// ignored. - void setMethodParams(ASTContext &C, - ArrayRef<ParmVarDecl*> Params, - ArrayRef<SourceLocation> SelLocs = llvm::None); - - // Iterator access to parameter types. - typedef std::const_mem_fun_t<QualType, ParmVarDecl> deref_fun; - typedef llvm::mapped_iterator<param_const_iterator, deref_fun> - param_type_iterator; - - param_type_iterator param_type_begin() const { - return llvm::map_iterator(param_begin(), deref_fun(&ParmVarDecl::getType)); - } - param_type_iterator param_type_end() const { - return llvm::map_iterator(param_end(), deref_fun(&ParmVarDecl::getType)); - } - - /// createImplicitParams - Used to lazily create the self and cmd - /// implict parameters. This must be called prior to using getSelfDecl() - /// or getCmdDecl(). The call is ignored if the implicit paramters - /// have already been created. - void createImplicitParams(ASTContext &Context, const ObjCInterfaceDecl *ID); - - /// \return the type for \c self and set \arg selfIsPseudoStrong and - /// \arg selfIsConsumed accordingly. - QualType getSelfType(ASTContext &Context, const ObjCInterfaceDecl *OID, - bool &selfIsPseudoStrong, bool &selfIsConsumed); - - ImplicitParamDecl * getSelfDecl() const { return SelfDecl; } - void setSelfDecl(ImplicitParamDecl *SD) { SelfDecl = SD; } - ImplicitParamDecl * getCmdDecl() const { return CmdDecl; } - void setCmdDecl(ImplicitParamDecl *CD) { CmdDecl = CD; } - - /// Determines the family of this method. - ObjCMethodFamily getMethodFamily() const; - - bool isInstanceMethod() const { return IsInstance; } - void setInstanceMethod(bool isInst) { IsInstance = isInst; } - bool isVariadic() const { return IsVariadic; } - void setVariadic(bool isVar) { IsVariadic = isVar; } - - bool isClassMethod() const { return !IsInstance; } - - bool isPropertyAccessor() const { return IsPropertyAccessor; } - void setPropertyAccessor(bool isAccessor) { IsPropertyAccessor = isAccessor; } - - bool isDefined() const { return IsDefined; } - void setDefined(bool isDefined) { IsDefined = isDefined; } - - /// \brief Whether this method overrides any other in the class hierarchy. - /// - /// A method is said to override any method in the class's - /// base classes, its protocols, or its categories' protocols, that has - /// the same selector and is of the same kind (class or instance). - /// A method in an implementation is not considered as overriding the same - /// method in the interface or its categories. - bool isOverriding() const { return IsOverriding; } - void setOverriding(bool isOverriding) { IsOverriding = isOverriding; } - - /// \brief Return overridden methods for the given \p Method. - /// - /// An ObjC method is considered to override any method in the class's - /// base classes (and base's categories), its protocols, or its categories' - /// protocols, that has - /// the same selector and is of the same kind (class or instance). - /// A method in an implementation is not considered as overriding the same - /// method in the interface or its categories. - void getOverriddenMethods( - SmallVectorImpl<const ObjCMethodDecl *> &Overridden) const; - - /// \brief True if the method was a definition but its body was skipped. - bool hasSkippedBody() const { return HasSkippedBody; } - void setHasSkippedBody(bool Skipped = true) { HasSkippedBody = Skipped; } - - /// \brief Returns the property associated with this method's selector. - /// - /// Note that even if this particular method is not marked as a property - /// accessor, it is still possible for it to match a property declared in a - /// superclass. Pass \c false if you only want to check the current class. - const ObjCPropertyDecl *findPropertyDecl(bool CheckOverrides = true) const; - - // Related to protocols declared in \@protocol - void setDeclImplementation(ImplementationControl ic) { - DeclImplementation = ic; - } - ImplementationControl getImplementationControl() const { - return ImplementationControl(DeclImplementation); - } - - /// Returns true if this specific method declaration is marked with the - /// designated initializer attribute. - bool isThisDeclarationADesignatedInitializer() const; - - /// Returns true if the method selector resolves to a designated initializer - /// in the class's interface. - /// - /// \param InitMethod if non-null and the function returns true, it receives - /// the method declaration that was marked with the designated initializer - /// attribute. - bool isDesignatedInitializerForTheInterface( - const ObjCMethodDecl **InitMethod = nullptr) const; - - /// \brief Determine whether this method has a body. - bool hasBody() const override { return Body.isValid(); } - - /// \brief Retrieve the body of this method, if it has one. - Stmt *getBody() const override; - - void setLazyBody(uint64_t Offset) { Body = Offset; } - - CompoundStmt *getCompoundBody() { return (CompoundStmt*)getBody(); } - void setBody(Stmt *B) { Body = B; } - - /// \brief Returns whether this specific method is a definition. - bool isThisDeclarationADefinition() const { return hasBody(); } - - // Implement isa/cast/dyncast/etc. - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { return K == ObjCMethod; } - static DeclContext *castToDeclContext(const ObjCMethodDecl *D) { - return static_cast<DeclContext *>(const_cast<ObjCMethodDecl*>(D)); - } - static ObjCMethodDecl *castFromDeclContext(const DeclContext *DC) { - return static_cast<ObjCMethodDecl *>(const_cast<DeclContext*>(DC)); - } - - friend class ASTDeclReader; - friend class ASTDeclWriter; -}; - -/// Describes the variance of a given generic parameter. -enum class ObjCTypeParamVariance : uint8_t { - /// The parameter is invariant: must match exactly. - Invariant, - /// The parameter is covariant, e.g., X<T> is a subtype of X<U> when - /// the type parameter is covariant and T is a subtype of U. - Covariant, - /// The parameter is contravariant, e.g., X<T> is a subtype of X<U> - /// when the type parameter is covariant and U is a subtype of T. - Contravariant, -}; - -/// Represents the declaration of an Objective-C type parameter. -/// -/// \code -/// @interface NSDictionary<Key : id<NSCopying>, Value> -/// @end -/// \endcode -/// -/// In the example above, both \c Key and \c Value are represented by -/// \c ObjCTypeParamDecl. \c Key has an explicit bound of \c id<NSCopying>, -/// while \c Value gets an implicit bound of \c id. -/// -/// Objective-C type parameters are typedef-names in the grammar, -class ObjCTypeParamDecl : public TypedefNameDecl { - void anchor() override; - - /// Index of this type parameter in the type parameter list. - unsigned Index : 14; - - /// The variance of the type parameter. - unsigned Variance : 2; - - /// The location of the variance, if any. - SourceLocation VarianceLoc; - - /// The location of the ':', which will be valid when the bound was - /// explicitly specified. - SourceLocation ColonLoc; - - ObjCTypeParamDecl(ASTContext &ctx, DeclContext *dc, - ObjCTypeParamVariance variance, SourceLocation varianceLoc, - unsigned index, - SourceLocation nameLoc, IdentifierInfo *name, - SourceLocation colonLoc, TypeSourceInfo *boundInfo) - : TypedefNameDecl(ObjCTypeParam, ctx, dc, nameLoc, nameLoc, name, - boundInfo), - Index(index), Variance(static_cast<unsigned>(variance)), - VarianceLoc(varianceLoc), ColonLoc(colonLoc) { } - -public: - static ObjCTypeParamDecl *Create(ASTContext &ctx, DeclContext *dc, - ObjCTypeParamVariance variance, - SourceLocation varianceLoc, - unsigned index, - SourceLocation nameLoc, - IdentifierInfo *name, - SourceLocation colonLoc, - TypeSourceInfo *boundInfo); - static ObjCTypeParamDecl *CreateDeserialized(ASTContext &ctx, unsigned ID); - - SourceRange getSourceRange() const override LLVM_READONLY; - - /// Determine the variance of this type parameter. - ObjCTypeParamVariance getVariance() const { - return static_cast<ObjCTypeParamVariance>(Variance); - } - - /// Set the variance of this type parameter. - void setVariance(ObjCTypeParamVariance variance) { - Variance = static_cast<unsigned>(variance); - } - - /// Retrieve the location of the variance keyword. - SourceLocation getVarianceLoc() const { return VarianceLoc; } - - /// Retrieve the index into its type parameter list. - unsigned getIndex() const { return Index; } - - /// Whether this type parameter has an explicitly-written type bound, e.g., - /// "T : NSView". - bool hasExplicitBound() const { return ColonLoc.isValid(); } - - /// Retrieve the location of the ':' separating the type parameter name - /// from the explicitly-specified bound. - SourceLocation getColonLoc() const { return ColonLoc; } - - // Implement isa/cast/dyncast/etc. - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { return K == ObjCTypeParam; } - - friend class ASTDeclReader; - friend class ASTDeclWriter; -}; - -/// Stores a list of Objective-C type parameters for a parameterized class -/// or a category/extension thereof. -/// -/// \code -/// @interface NSArray<T> // stores the <T> -/// @end -/// \endcode -class ObjCTypeParamList final - : private llvm::TrailingObjects<ObjCTypeParamList, ObjCTypeParamDecl *> { - /// Stores the components of a SourceRange as a POD. - struct PODSourceRange { - unsigned Begin; - unsigned End; - }; - - union { - /// Location of the left and right angle brackets. - PODSourceRange Brackets; - - // Used only for alignment. - ObjCTypeParamDecl *AlignmentHack; - }; - - /// The number of parameters in the list, which are tail-allocated. - unsigned NumParams; - - ObjCTypeParamList(SourceLocation lAngleLoc, - ArrayRef<ObjCTypeParamDecl *> typeParams, - SourceLocation rAngleLoc); - -public: - /// Create a new Objective-C type parameter list. - static ObjCTypeParamList *create(ASTContext &ctx, - SourceLocation lAngleLoc, - ArrayRef<ObjCTypeParamDecl *> typeParams, - SourceLocation rAngleLoc); - - /// Iterate through the type parameters in the list. - typedef ObjCTypeParamDecl **iterator; - - iterator begin() { return getTrailingObjects<ObjCTypeParamDecl *>(); } - - iterator end() { return begin() + size(); } - - /// Determine the number of type parameters in this list. - unsigned size() const { return NumParams; } - - // Iterate through the type parameters in the list. - typedef ObjCTypeParamDecl * const *const_iterator; - - const_iterator begin() const { - return getTrailingObjects<ObjCTypeParamDecl *>(); - } - - const_iterator end() const { - return begin() + size(); - } - - ObjCTypeParamDecl *front() const { - assert(size() > 0 && "empty Objective-C type parameter list"); - return *begin(); - } - - ObjCTypeParamDecl *back() const { - assert(size() > 0 && "empty Objective-C type parameter list"); - return *(end() - 1); - } - - SourceLocation getLAngleLoc() const { - return SourceLocation::getFromRawEncoding(Brackets.Begin); - } - SourceLocation getRAngleLoc() const { - return SourceLocation::getFromRawEncoding(Brackets.End); - } - SourceRange getSourceRange() const { - return SourceRange(getLAngleLoc(), getRAngleLoc()); - } - - /// Gather the default set of type arguments to be substituted for - /// these type parameters when dealing with an unspecialized type. - void gatherDefaultTypeArgs(SmallVectorImpl<QualType> &typeArgs) const; - friend TrailingObjects; -}; - -/// ObjCContainerDecl - Represents a container for method declarations. -/// Current sub-classes are ObjCInterfaceDecl, ObjCCategoryDecl, -/// ObjCProtocolDecl, and ObjCImplDecl. -/// -class ObjCContainerDecl : public NamedDecl, public DeclContext { - void anchor() override; - - SourceLocation AtStart; - - // These two locations in the range mark the end of the method container. - // The first points to the '@' token, and the second to the 'end' token. - SourceRange AtEnd; -public: - - ObjCContainerDecl(Kind DK, DeclContext *DC, - IdentifierInfo *Id, SourceLocation nameLoc, - SourceLocation atStartLoc) - : NamedDecl(DK, DC, nameLoc, Id), DeclContext(DK), AtStart(atStartLoc) {} - - // Iterator access to properties. - typedef specific_decl_iterator<ObjCPropertyDecl> prop_iterator; - typedef llvm::iterator_range<specific_decl_iterator<ObjCPropertyDecl>> - prop_range; - - prop_range properties() const { return prop_range(prop_begin(), prop_end()); } - prop_iterator prop_begin() const { - return prop_iterator(decls_begin()); - } - prop_iterator prop_end() const { - return prop_iterator(decls_end()); - } - - // Iterator access to instance/class methods. - typedef specific_decl_iterator<ObjCMethodDecl> method_iterator; - typedef llvm::iterator_range<specific_decl_iterator<ObjCMethodDecl>> - method_range; - - method_range methods() const { - return method_range(meth_begin(), meth_end()); - } - method_iterator meth_begin() const { - return method_iterator(decls_begin()); - } - method_iterator meth_end() const { - return method_iterator(decls_end()); - } - - typedef filtered_decl_iterator<ObjCMethodDecl, - &ObjCMethodDecl::isInstanceMethod> - instmeth_iterator; - typedef llvm::iterator_range<instmeth_iterator> instmeth_range; - - instmeth_range instance_methods() const { - return instmeth_range(instmeth_begin(), instmeth_end()); - } - instmeth_iterator instmeth_begin() const { - return instmeth_iterator(decls_begin()); - } - instmeth_iterator instmeth_end() const { - return instmeth_iterator(decls_end()); - } - - typedef filtered_decl_iterator<ObjCMethodDecl, - &ObjCMethodDecl::isClassMethod> - classmeth_iterator; - typedef llvm::iterator_range<classmeth_iterator> classmeth_range; - - classmeth_range class_methods() const { - return classmeth_range(classmeth_begin(), classmeth_end()); - } - classmeth_iterator classmeth_begin() const { - return classmeth_iterator(decls_begin()); - } - classmeth_iterator classmeth_end() const { - return classmeth_iterator(decls_end()); - } - - // Get the local instance/class method declared in this interface. - ObjCMethodDecl *getMethod(Selector Sel, bool isInstance, - bool AllowHidden = false) const; - ObjCMethodDecl *getInstanceMethod(Selector Sel, - bool AllowHidden = false) const { - return getMethod(Sel, true/*isInstance*/, AllowHidden); - } - ObjCMethodDecl *getClassMethod(Selector Sel, bool AllowHidden = false) const { - return getMethod(Sel, false/*isInstance*/, AllowHidden); - } - bool HasUserDeclaredSetterMethod(const ObjCPropertyDecl *P) const; - ObjCIvarDecl *getIvarDecl(IdentifierInfo *Id) const; - - ObjCPropertyDecl * - FindPropertyDeclaration(const IdentifierInfo *PropertyId) const; - - typedef llvm::DenseMap<IdentifierInfo*, ObjCPropertyDecl*> PropertyMap; - - typedef llvm::DenseMap<const ObjCProtocolDecl *, ObjCPropertyDecl*> - ProtocolPropertyMap; - - typedef llvm::SmallVector<ObjCPropertyDecl*, 8> PropertyDeclOrder; - - /// This routine collects list of properties to be implemented in the class. - /// This includes, class's and its conforming protocols' properties. - /// Note, the superclass's properties are not included in the list. - virtual void collectPropertiesToImplement(PropertyMap &PM, - PropertyDeclOrder &PO) const {} - - SourceLocation getAtStartLoc() const { return AtStart; } - void setAtStartLoc(SourceLocation Loc) { AtStart = Loc; } - - // Marks the end of the container. - SourceRange getAtEndRange() const { - return AtEnd; - } - void setAtEndRange(SourceRange atEnd) { - AtEnd = atEnd; - } - - SourceRange getSourceRange() const override LLVM_READONLY { - return SourceRange(AtStart, getAtEndRange().getEnd()); - } - - // Implement isa/cast/dyncast/etc. - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { - return K >= firstObjCContainer && - K <= lastObjCContainer; - } - - static DeclContext *castToDeclContext(const ObjCContainerDecl *D) { - return static_cast<DeclContext *>(const_cast<ObjCContainerDecl*>(D)); - } - static ObjCContainerDecl *castFromDeclContext(const DeclContext *DC) { - return static_cast<ObjCContainerDecl *>(const_cast<DeclContext*>(DC)); - } -}; - -/// \brief Represents an ObjC class declaration. -/// -/// For example: -/// -/// \code -/// // MostPrimitive declares no super class (not particularly useful). -/// \@interface MostPrimitive -/// // no instance variables or methods. -/// \@end -/// -/// // NSResponder inherits from NSObject & implements NSCoding (a protocol). -/// \@interface NSResponder : NSObject \<NSCoding> -/// { // instance variables are represented by ObjCIvarDecl. -/// id nextResponder; // nextResponder instance variable. -/// } -/// - (NSResponder *)nextResponder; // return a pointer to NSResponder. -/// - (void)mouseMoved:(NSEvent *)theEvent; // return void, takes a pointer -/// \@end // to an NSEvent. -/// \endcode -/// -/// Unlike C/C++, forward class declarations are accomplished with \@class. -/// Unlike C/C++, \@class allows for a list of classes to be forward declared. -/// Unlike C++, ObjC is a single-rooted class model. In Cocoa, classes -/// typically inherit from NSObject (an exception is NSProxy). -/// -class ObjCInterfaceDecl : public ObjCContainerDecl - , public Redeclarable<ObjCInterfaceDecl> { - void anchor() override; - - /// TypeForDecl - This indicates the Type object that represents this - /// TypeDecl. It is a cache maintained by ASTContext::getObjCInterfaceType - mutable const Type *TypeForDecl; - friend class ASTContext; - - struct DefinitionData { - /// \brief The definition of this class, for quick access from any - /// declaration. - ObjCInterfaceDecl *Definition; - - /// When non-null, this is always an ObjCObjectType. - TypeSourceInfo *SuperClassTInfo; - - /// Protocols referenced in the \@interface declaration - ObjCProtocolList ReferencedProtocols; - - /// Protocols reference in both the \@interface and class extensions. - ObjCList<ObjCProtocolDecl> AllReferencedProtocols; - - /// \brief List of categories and class extensions defined for this class. - /// - /// Categories are stored as a linked list in the AST, since the categories - /// and class extensions come long after the initial interface declaration, - /// and we avoid dynamically-resized arrays in the AST wherever possible. - ObjCCategoryDecl *CategoryList; - - /// IvarList - List of all ivars defined by this class; including class - /// extensions and implementation. This list is built lazily. - ObjCIvarDecl *IvarList; - - /// \brief Indicates that the contents of this Objective-C class will be - /// completed by the external AST source when required. - mutable bool ExternallyCompleted : 1; - - /// \brief Indicates that the ivar cache does not yet include ivars - /// declared in the implementation. - mutable bool IvarListMissingImplementation : 1; - - /// Indicates that this interface decl contains at least one initializer - /// marked with the 'objc_designated_initializer' attribute. - bool HasDesignatedInitializers : 1; - - enum InheritedDesignatedInitializersState { - /// We didn't calculate whether the designated initializers should be - /// inherited or not. - IDI_Unknown = 0, - /// Designated initializers are inherited for the super class. - IDI_Inherited = 1, - /// The class does not inherit designated initializers. - IDI_NotInherited = 2 - }; - /// One of the \c InheritedDesignatedInitializersState enumeratos. - mutable unsigned InheritedDesignatedInitializers : 2; - - /// \brief The location of the last location in this declaration, before - /// the properties/methods. For example, this will be the '>', '}', or - /// identifier, - SourceLocation EndLoc; - - DefinitionData() : Definition(), SuperClassTInfo(), CategoryList(), IvarList(), - ExternallyCompleted(), - IvarListMissingImplementation(true), - HasDesignatedInitializers(), - InheritedDesignatedInitializers(IDI_Unknown) { } - }; - - ObjCInterfaceDecl(const ASTContext &C, DeclContext *DC, SourceLocation AtLoc, - IdentifierInfo *Id, ObjCTypeParamList *typeParamList, - SourceLocation CLoc, ObjCInterfaceDecl *PrevDecl, - bool IsInternal); - - void LoadExternalDefinition() const; - - /// The type parameters associated with this class, if any. - ObjCTypeParamList *TypeParamList; - - /// \brief Contains a pointer to the data associated with this class, - /// which will be NULL if this class has not yet been defined. - /// - /// The bit indicates when we don't need to check for out-of-date - /// declarations. It will be set unless modules are enabled. - llvm::PointerIntPair<DefinitionData *, 1, bool> Data; - - DefinitionData &data() const { - assert(Data.getPointer() && "Declaration has no definition!"); - return *Data.getPointer(); - } - - /// \brief Allocate the definition data for this class. - void allocateDefinitionData(); - - typedef Redeclarable<ObjCInterfaceDecl> redeclarable_base; - ObjCInterfaceDecl *getNextRedeclarationImpl() override { - return getNextRedeclaration(); - } - ObjCInterfaceDecl *getPreviousDeclImpl() override { - return getPreviousDecl(); - } - ObjCInterfaceDecl *getMostRecentDeclImpl() override { - return getMostRecentDecl(); - } - -public: - static ObjCInterfaceDecl *Create(const ASTContext &C, DeclContext *DC, - SourceLocation atLoc, - IdentifierInfo *Id, - ObjCTypeParamList *typeParamList, - ObjCInterfaceDecl *PrevDecl, - SourceLocation ClassLoc = SourceLocation(), - bool isInternal = false); - - static ObjCInterfaceDecl *CreateDeserialized(const ASTContext &C, unsigned ID); - - /// Retrieve the type parameters of this class. - /// - /// This function looks for a type parameter list for the given - /// class; if the class has been declared (with \c \@class) but not - /// defined (with \c \@interface), it will search for a declaration that - /// has type parameters, skipping any declarations that do not. - ObjCTypeParamList *getTypeParamList() const; - - /// Set the type parameters of this class. - /// - /// This function is used by the AST importer, which must import the type - /// parameters after creating their DeclContext to avoid loops. - void setTypeParamList(ObjCTypeParamList *TPL); - - /// Retrieve the type parameters written on this particular declaration of - /// the class. - ObjCTypeParamList *getTypeParamListAsWritten() const { - return TypeParamList; - } - - SourceRange getSourceRange() const override LLVM_READONLY { - if (isThisDeclarationADefinition()) - return ObjCContainerDecl::getSourceRange(); - - return SourceRange(getAtStartLoc(), getLocation()); - } - - /// \brief Indicate that this Objective-C class is complete, but that - /// the external AST source will be responsible for filling in its contents - /// when a complete class is required. - void setExternallyCompleted(); - - /// Indicate that this interface decl contains at least one initializer - /// marked with the 'objc_designated_initializer' attribute. - void setHasDesignatedInitializers(); - - /// Returns true if this interface decl contains at least one initializer - /// marked with the 'objc_designated_initializer' attribute. - bool hasDesignatedInitializers() const; - - /// Returns true if this interface decl declares a designated initializer - /// or it inherites one from its super class. - bool declaresOrInheritsDesignatedInitializers() const { - return hasDesignatedInitializers() || inheritsDesignatedInitializers(); - } - - const ObjCProtocolList &getReferencedProtocols() const { - assert(hasDefinition() && "Caller did not check for forward reference!"); - if (data().ExternallyCompleted) - LoadExternalDefinition(); - - return data().ReferencedProtocols; - } - - ObjCImplementationDecl *getImplementation() const; - void setImplementation(ObjCImplementationDecl *ImplD); - - ObjCCategoryDecl *FindCategoryDeclaration(IdentifierInfo *CategoryId) const; - - // Get the local instance/class method declared in a category. - ObjCMethodDecl *getCategoryInstanceMethod(Selector Sel) const; - ObjCMethodDecl *getCategoryClassMethod(Selector Sel) const; - ObjCMethodDecl *getCategoryMethod(Selector Sel, bool isInstance) const { - return isInstance ? getCategoryInstanceMethod(Sel) - : getCategoryClassMethod(Sel); - } - - typedef ObjCProtocolList::iterator protocol_iterator; - typedef llvm::iterator_range<protocol_iterator> protocol_range; - - protocol_range protocols() const { - return protocol_range(protocol_begin(), protocol_end()); - } - protocol_iterator protocol_begin() const { - // FIXME: Should make sure no callers ever do this. - if (!hasDefinition()) - return protocol_iterator(); - - if (data().ExternallyCompleted) - LoadExternalDefinition(); - - return data().ReferencedProtocols.begin(); - } - protocol_iterator protocol_end() const { - // FIXME: Should make sure no callers ever do this. - if (!hasDefinition()) - return protocol_iterator(); - - if (data().ExternallyCompleted) - LoadExternalDefinition(); - - return data().ReferencedProtocols.end(); - } - - typedef ObjCProtocolList::loc_iterator protocol_loc_iterator; - typedef llvm::iterator_range<protocol_loc_iterator> protocol_loc_range; - - protocol_loc_range protocol_locs() const { - return protocol_loc_range(protocol_loc_begin(), protocol_loc_end()); - } - protocol_loc_iterator protocol_loc_begin() const { - // FIXME: Should make sure no callers ever do this. - if (!hasDefinition()) - return protocol_loc_iterator(); - - if (data().ExternallyCompleted) - LoadExternalDefinition(); - - return data().ReferencedProtocols.loc_begin(); - } - - protocol_loc_iterator protocol_loc_end() const { - // FIXME: Should make sure no callers ever do this. - if (!hasDefinition()) - return protocol_loc_iterator(); - - if (data().ExternallyCompleted) - LoadExternalDefinition(); - - return data().ReferencedProtocols.loc_end(); - } - - typedef ObjCList<ObjCProtocolDecl>::iterator all_protocol_iterator; - typedef llvm::iterator_range<all_protocol_iterator> all_protocol_range; - - all_protocol_range all_referenced_protocols() const { - return all_protocol_range(all_referenced_protocol_begin(), - all_referenced_protocol_end()); - } - all_protocol_iterator all_referenced_protocol_begin() const { - // FIXME: Should make sure no callers ever do this. - if (!hasDefinition()) - return all_protocol_iterator(); - - if (data().ExternallyCompleted) - LoadExternalDefinition(); - - return data().AllReferencedProtocols.empty() - ? protocol_begin() - : data().AllReferencedProtocols.begin(); - } - all_protocol_iterator all_referenced_protocol_end() const { - // FIXME: Should make sure no callers ever do this. - if (!hasDefinition()) - return all_protocol_iterator(); - - if (data().ExternallyCompleted) - LoadExternalDefinition(); - - return data().AllReferencedProtocols.empty() - ? protocol_end() - : data().AllReferencedProtocols.end(); - } - - typedef specific_decl_iterator<ObjCIvarDecl> ivar_iterator; - typedef llvm::iterator_range<specific_decl_iterator<ObjCIvarDecl>> ivar_range; - - ivar_range ivars() const { return ivar_range(ivar_begin(), ivar_end()); } - ivar_iterator ivar_begin() const { - if (const ObjCInterfaceDecl *Def = getDefinition()) - return ivar_iterator(Def->decls_begin()); - - // FIXME: Should make sure no callers ever do this. - return ivar_iterator(); - } - ivar_iterator ivar_end() const { - if (const ObjCInterfaceDecl *Def = getDefinition()) - return ivar_iterator(Def->decls_end()); - - // FIXME: Should make sure no callers ever do this. - return ivar_iterator(); - } - - unsigned ivar_size() const { - return std::distance(ivar_begin(), ivar_end()); - } - - bool ivar_empty() const { return ivar_begin() == ivar_end(); } - - ObjCIvarDecl *all_declared_ivar_begin(); - const ObjCIvarDecl *all_declared_ivar_begin() const { - // Even though this modifies IvarList, it's conceptually const: - // the ivar chain is essentially a cached property of ObjCInterfaceDecl. - return const_cast<ObjCInterfaceDecl *>(this)->all_declared_ivar_begin(); - } - void setIvarList(ObjCIvarDecl *ivar) { data().IvarList = ivar; } - - /// setProtocolList - Set the list of protocols that this interface - /// implements. - void setProtocolList(ObjCProtocolDecl *const* List, unsigned Num, - const SourceLocation *Locs, ASTContext &C) { - data().ReferencedProtocols.set(List, Num, Locs, C); - } - - /// mergeClassExtensionProtocolList - Merge class extension's protocol list - /// into the protocol list for this class. - void mergeClassExtensionProtocolList(ObjCProtocolDecl *const* List, - unsigned Num, - ASTContext &C); - - /// Produce a name to be used for class's metadata. It comes either via - /// objc_runtime_name attribute or class name. - StringRef getObjCRuntimeNameAsString() const; - - /// Returns the designated initializers for the interface. - /// - /// If this declaration does not have methods marked as designated - /// initializers then the interface inherits the designated initializers of - /// its super class. - void getDesignatedInitializers( - llvm::SmallVectorImpl<const ObjCMethodDecl *> &Methods) const; - - /// Returns true if the given selector is a designated initializer for the - /// interface. - /// - /// If this declaration does not have methods marked as designated - /// initializers then the interface inherits the designated initializers of - /// its super class. - /// - /// \param InitMethod if non-null and the function returns true, it receives - /// the method that was marked as a designated initializer. - bool - isDesignatedInitializer(Selector Sel, - const ObjCMethodDecl **InitMethod = nullptr) const; - - /// \brief Determine whether this particular declaration of this class is - /// actually also a definition. - bool isThisDeclarationADefinition() const { - return getDefinition() == this; - } - - /// \brief Determine whether this class has been defined. - bool hasDefinition() const { - // If the name of this class is out-of-date, bring it up-to-date, which - // might bring in a definition. - // Note: a null value indicates that we don't have a definition and that - // modules are enabled. - if (!Data.getOpaqueValue()) - getMostRecentDecl(); - - return Data.getPointer(); - } - - /// \brief Retrieve the definition of this class, or NULL if this class - /// has been forward-declared (with \@class) but not yet defined (with - /// \@interface). - ObjCInterfaceDecl *getDefinition() { - return hasDefinition()? Data.getPointer()->Definition : nullptr; - } - - /// \brief Retrieve the definition of this class, or NULL if this class - /// has been forward-declared (with \@class) but not yet defined (with - /// \@interface). - const ObjCInterfaceDecl *getDefinition() const { - return hasDefinition()? Data.getPointer()->Definition : nullptr; - } - - /// \brief Starts the definition of this Objective-C class, taking it from - /// a forward declaration (\@class) to a definition (\@interface). - void startDefinition(); - - /// Retrieve the superclass type. - const ObjCObjectType *getSuperClassType() const { - if (TypeSourceInfo *TInfo = getSuperClassTInfo()) - return TInfo->getType()->castAs<ObjCObjectType>(); - - return nullptr; - } - - // Retrieve the type source information for the superclass. - TypeSourceInfo *getSuperClassTInfo() const { - // FIXME: Should make sure no callers ever do this. - if (!hasDefinition()) - return nullptr; - - if (data().ExternallyCompleted) - LoadExternalDefinition(); - - return data().SuperClassTInfo; - } - - // Retrieve the declaration for the superclass of this class, which - // does not include any type arguments that apply to the superclass. - ObjCInterfaceDecl *getSuperClass() const; - - void setSuperClass(TypeSourceInfo *superClass) { - data().SuperClassTInfo = superClass; - } - - /// \brief Iterator that walks over the list of categories, filtering out - /// those that do not meet specific criteria. - /// - /// This class template is used for the various permutations of category - /// and extension iterators. - template<bool (*Filter)(ObjCCategoryDecl *)> - class filtered_category_iterator { - ObjCCategoryDecl *Current; - - void findAcceptableCategory(); - - public: - typedef ObjCCategoryDecl * value_type; - typedef value_type reference; - typedef value_type pointer; - typedef std::ptrdiff_t difference_type; - typedef std::input_iterator_tag iterator_category; - - filtered_category_iterator() : Current(nullptr) { } - explicit filtered_category_iterator(ObjCCategoryDecl *Current) - : Current(Current) - { - findAcceptableCategory(); - } - - reference operator*() const { return Current; } - pointer operator->() const { return Current; } - - filtered_category_iterator &operator++(); - - filtered_category_iterator operator++(int) { - filtered_category_iterator Tmp = *this; - ++(*this); - return Tmp; - } - - friend bool operator==(filtered_category_iterator X, - filtered_category_iterator Y) { - return X.Current == Y.Current; - } - - friend bool operator!=(filtered_category_iterator X, - filtered_category_iterator Y) { - return X.Current != Y.Current; - } - }; - -private: - /// \brief Test whether the given category is visible. - /// - /// Used in the \c visible_categories_iterator. - static bool isVisibleCategory(ObjCCategoryDecl *Cat); - -public: - /// \brief Iterator that walks over the list of categories and extensions - /// that are visible, i.e., not hidden in a non-imported submodule. - typedef filtered_category_iterator<isVisibleCategory> - visible_categories_iterator; - - typedef llvm::iterator_range<visible_categories_iterator> - visible_categories_range; - - visible_categories_range visible_categories() const { - return visible_categories_range(visible_categories_begin(), - visible_categories_end()); - } - - /// \brief Retrieve an iterator to the beginning of the visible-categories - /// list. - visible_categories_iterator visible_categories_begin() const { - return visible_categories_iterator(getCategoryListRaw()); - } - - /// \brief Retrieve an iterator to the end of the visible-categories list. - visible_categories_iterator visible_categories_end() const { - return visible_categories_iterator(); - } - - /// \brief Determine whether the visible-categories list is empty. - bool visible_categories_empty() const { - return visible_categories_begin() == visible_categories_end(); - } - -private: - /// \brief Test whether the given category... is a category. - /// - /// Used in the \c known_categories_iterator. - static bool isKnownCategory(ObjCCategoryDecl *) { return true; } - -public: - /// \brief Iterator that walks over all of the known categories and - /// extensions, including those that are hidden. - typedef filtered_category_iterator<isKnownCategory> known_categories_iterator; - typedef llvm::iterator_range<known_categories_iterator> - known_categories_range; - - known_categories_range known_categories() const { - return known_categories_range(known_categories_begin(), - known_categories_end()); - } - - /// \brief Retrieve an iterator to the beginning of the known-categories - /// list. - known_categories_iterator known_categories_begin() const { - return known_categories_iterator(getCategoryListRaw()); - } - - /// \brief Retrieve an iterator to the end of the known-categories list. - known_categories_iterator known_categories_end() const { - return known_categories_iterator(); - } - - /// \brief Determine whether the known-categories list is empty. - bool known_categories_empty() const { - return known_categories_begin() == known_categories_end(); - } - -private: - /// \brief Test whether the given category is a visible extension. - /// - /// Used in the \c visible_extensions_iterator. - static bool isVisibleExtension(ObjCCategoryDecl *Cat); - -public: - /// \brief Iterator that walks over all of the visible extensions, skipping - /// any that are known but hidden. - typedef filtered_category_iterator<isVisibleExtension> - visible_extensions_iterator; - - typedef llvm::iterator_range<visible_extensions_iterator> - visible_extensions_range; - - visible_extensions_range visible_extensions() const { - return visible_extensions_range(visible_extensions_begin(), - visible_extensions_end()); - } - - /// \brief Retrieve an iterator to the beginning of the visible-extensions - /// list. - visible_extensions_iterator visible_extensions_begin() const { - return visible_extensions_iterator(getCategoryListRaw()); - } - - /// \brief Retrieve an iterator to the end of the visible-extensions list. - visible_extensions_iterator visible_extensions_end() const { - return visible_extensions_iterator(); - } - - /// \brief Determine whether the visible-extensions list is empty. - bool visible_extensions_empty() const { - return visible_extensions_begin() == visible_extensions_end(); - } - -private: - /// \brief Test whether the given category is an extension. - /// - /// Used in the \c known_extensions_iterator. - static bool isKnownExtension(ObjCCategoryDecl *Cat); - -public: - /// \brief Iterator that walks over all of the known extensions. - typedef filtered_category_iterator<isKnownExtension> - known_extensions_iterator; - typedef llvm::iterator_range<known_extensions_iterator> - known_extensions_range; - - known_extensions_range known_extensions() const { - return known_extensions_range(known_extensions_begin(), - known_extensions_end()); - } - - /// \brief Retrieve an iterator to the beginning of the known-extensions - /// list. - known_extensions_iterator known_extensions_begin() const { - return known_extensions_iterator(getCategoryListRaw()); - } - - /// \brief Retrieve an iterator to the end of the known-extensions list. - known_extensions_iterator known_extensions_end() const { - return known_extensions_iterator(); - } - - /// \brief Determine whether the known-extensions list is empty. - bool known_extensions_empty() const { - return known_extensions_begin() == known_extensions_end(); - } - - /// \brief Retrieve the raw pointer to the start of the category/extension - /// list. - ObjCCategoryDecl* getCategoryListRaw() const { - // FIXME: Should make sure no callers ever do this. - if (!hasDefinition()) - return nullptr; - - if (data().ExternallyCompleted) - LoadExternalDefinition(); - - return data().CategoryList; - } - - /// \brief Set the raw pointer to the start of the category/extension - /// list. - void setCategoryListRaw(ObjCCategoryDecl *category) { - data().CategoryList = category; - } - - ObjCPropertyDecl - *FindPropertyVisibleInPrimaryClass(IdentifierInfo *PropertyId) const; - - void collectPropertiesToImplement(PropertyMap &PM, - PropertyDeclOrder &PO) const override; - - /// isSuperClassOf - Return true if this class is the specified class or is a - /// super class of the specified interface class. - bool isSuperClassOf(const ObjCInterfaceDecl *I) const { - // If RHS is derived from LHS it is OK; else it is not OK. - while (I != nullptr) { - if (declaresSameEntity(this, I)) - return true; - - I = I->getSuperClass(); - } - return false; - } - - /// isArcWeakrefUnavailable - Checks for a class or one of its super classes - /// to be incompatible with __weak references. Returns true if it is. - bool isArcWeakrefUnavailable() const; - - /// isObjCRequiresPropertyDefs - Checks that a class or one of its super - /// classes must not be auto-synthesized. Returns class decl. if it must not - /// be; 0, otherwise. - const ObjCInterfaceDecl *isObjCRequiresPropertyDefs() const; - - ObjCIvarDecl *lookupInstanceVariable(IdentifierInfo *IVarName, - ObjCInterfaceDecl *&ClassDeclared); - ObjCIvarDecl *lookupInstanceVariable(IdentifierInfo *IVarName) { - ObjCInterfaceDecl *ClassDeclared; - return lookupInstanceVariable(IVarName, ClassDeclared); - } - - ObjCProtocolDecl *lookupNestedProtocol(IdentifierInfo *Name); - - // Lookup a method. First, we search locally. If a method isn't - // found, we search referenced protocols and class categories. - ObjCMethodDecl *lookupMethod(Selector Sel, bool isInstance, - bool shallowCategoryLookup = false, - bool followSuper = true, - const ObjCCategoryDecl *C = nullptr) const; - - /// Lookup an instance method for a given selector. - ObjCMethodDecl *lookupInstanceMethod(Selector Sel) const { - return lookupMethod(Sel, true/*isInstance*/); - } - - /// Lookup a class method for a given selector. - ObjCMethodDecl *lookupClassMethod(Selector Sel) const { - return lookupMethod(Sel, false/*isInstance*/); - } - ObjCInterfaceDecl *lookupInheritedClass(const IdentifierInfo *ICName); - - /// \brief Lookup a method in the classes implementation hierarchy. - ObjCMethodDecl *lookupPrivateMethod(const Selector &Sel, - bool Instance=true) const; - - ObjCMethodDecl *lookupPrivateClassMethod(const Selector &Sel) { - return lookupPrivateMethod(Sel, false); - } - - /// \brief Lookup a setter or getter in the class hierarchy, - /// including in all categories except for category passed - /// as argument. - ObjCMethodDecl *lookupPropertyAccessor(const Selector Sel, - const ObjCCategoryDecl *Cat) const { - return lookupMethod(Sel, true/*isInstance*/, - false/*shallowCategoryLookup*/, - true /* followsSuper */, - Cat); - } - - SourceLocation getEndOfDefinitionLoc() const { - if (!hasDefinition()) - return getLocation(); - - return data().EndLoc; - } - - void setEndOfDefinitionLoc(SourceLocation LE) { data().EndLoc = LE; } - - /// Retrieve the starting location of the superclass. - SourceLocation getSuperClassLoc() const; - - /// isImplicitInterfaceDecl - check that this is an implicitly declared - /// ObjCInterfaceDecl node. This is for legacy objective-c \@implementation - /// declaration without an \@interface declaration. - bool isImplicitInterfaceDecl() const { - return hasDefinition() ? data().Definition->isImplicit() : isImplicit(); - } - - /// ClassImplementsProtocol - Checks that 'lProto' protocol - /// has been implemented in IDecl class, its super class or categories (if - /// lookupCategory is true). - bool ClassImplementsProtocol(ObjCProtocolDecl *lProto, - bool lookupCategory, - bool RHSIsQualifiedID = false); - - typedef redeclarable_base::redecl_range redecl_range; - typedef redeclarable_base::redecl_iterator redecl_iterator; - using redeclarable_base::redecls_begin; - using redeclarable_base::redecls_end; - using redeclarable_base::redecls; - using redeclarable_base::getPreviousDecl; - using redeclarable_base::getMostRecentDecl; - using redeclarable_base::isFirstDecl; - - /// Retrieves the canonical declaration of this Objective-C class. - ObjCInterfaceDecl *getCanonicalDecl() override { return getFirstDecl(); } - const ObjCInterfaceDecl *getCanonicalDecl() const { return getFirstDecl(); } - - // Low-level accessor - const Type *getTypeForDecl() const { return TypeForDecl; } - void setTypeForDecl(const Type *TD) const { TypeForDecl = TD; } - - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { return K == ObjCInterface; } - - friend class ASTReader; - friend class ASTDeclReader; - friend class ASTDeclWriter; - -private: - const ObjCInterfaceDecl *findInterfaceWithDesignatedInitializers() const; - bool inheritsDesignatedInitializers() const; -}; - -/// ObjCIvarDecl - Represents an ObjC instance variable. In general, ObjC -/// instance variables are identical to C. The only exception is Objective-C -/// supports C++ style access control. For example: -/// -/// \@interface IvarExample : NSObject -/// { -/// id defaultToProtected; -/// \@public: -/// id canBePublic; // same as C++. -/// \@protected: -/// id canBeProtected; // same as C++. -/// \@package: -/// id canBePackage; // framework visibility (not available in C++). -/// } -/// -class ObjCIvarDecl : public FieldDecl { - void anchor() override; - -public: - enum AccessControl { - None, Private, Protected, Public, Package - }; - -private: - ObjCIvarDecl(ObjCContainerDecl *DC, SourceLocation StartLoc, - SourceLocation IdLoc, IdentifierInfo *Id, - QualType T, TypeSourceInfo *TInfo, AccessControl ac, Expr *BW, - bool synthesized) - : FieldDecl(ObjCIvar, DC, StartLoc, IdLoc, Id, T, TInfo, BW, - /*Mutable=*/false, /*HasInit=*/ICIS_NoInit), - NextIvar(nullptr), DeclAccess(ac), Synthesized(synthesized) {} - -public: - static ObjCIvarDecl *Create(ASTContext &C, ObjCContainerDecl *DC, - SourceLocation StartLoc, SourceLocation IdLoc, - IdentifierInfo *Id, QualType T, - TypeSourceInfo *TInfo, - AccessControl ac, Expr *BW = nullptr, - bool synthesized=false); - - static ObjCIvarDecl *CreateDeserialized(ASTContext &C, unsigned ID); - - /// \brief Return the class interface that this ivar is logically contained - /// in; this is either the interface where the ivar was declared, or the - /// interface the ivar is conceptually a part of in the case of synthesized - /// ivars. - const ObjCInterfaceDecl *getContainingInterface() const; - - ObjCIvarDecl *getNextIvar() { return NextIvar; } - const ObjCIvarDecl *getNextIvar() const { return NextIvar; } - void setNextIvar(ObjCIvarDecl *ivar) { NextIvar = ivar; } - - void setAccessControl(AccessControl ac) { DeclAccess = ac; } - - AccessControl getAccessControl() const { return AccessControl(DeclAccess); } - - AccessControl getCanonicalAccessControl() const { - return DeclAccess == None ? Protected : AccessControl(DeclAccess); - } - - void setSynthesize(bool synth) { Synthesized = synth; } - bool getSynthesize() const { return Synthesized; } - - /// Retrieve the type of this instance variable when viewed as a member of a - /// specific object type. - QualType getUsageType(QualType objectType) const; - - // Implement isa/cast/dyncast/etc. - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { return K == ObjCIvar; } -private: - /// NextIvar - Next Ivar in the list of ivars declared in class; class's - /// extensions and class's implementation - ObjCIvarDecl *NextIvar; - - // NOTE: VC++ treats enums as signed, avoid using the AccessControl enum - unsigned DeclAccess : 3; - unsigned Synthesized : 1; -}; - - -/// \brief Represents a field declaration created by an \@defs(...). -class ObjCAtDefsFieldDecl : public FieldDecl { - void anchor() override; - ObjCAtDefsFieldDecl(DeclContext *DC, SourceLocation StartLoc, - SourceLocation IdLoc, IdentifierInfo *Id, - QualType T, Expr *BW) - : FieldDecl(ObjCAtDefsField, DC, StartLoc, IdLoc, Id, T, - /*TInfo=*/nullptr, // FIXME: Do ObjCAtDefs have declarators ? - BW, /*Mutable=*/false, /*HasInit=*/ICIS_NoInit) {} - -public: - static ObjCAtDefsFieldDecl *Create(ASTContext &C, DeclContext *DC, - SourceLocation StartLoc, - SourceLocation IdLoc, IdentifierInfo *Id, - QualType T, Expr *BW); - - static ObjCAtDefsFieldDecl *CreateDeserialized(ASTContext &C, unsigned ID); - - // Implement isa/cast/dyncast/etc. - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { return K == ObjCAtDefsField; } -}; - -/// \brief Represents an Objective-C protocol declaration. -/// -/// Objective-C protocols declare a pure abstract type (i.e., no instance -/// variables are permitted). Protocols originally drew inspiration from -/// C++ pure virtual functions (a C++ feature with nice semantics and lousy -/// syntax:-). Here is an example: -/// -/// \code -/// \@protocol NSDraggingInfo <refproto1, refproto2> -/// - (NSWindow *)draggingDestinationWindow; -/// - (NSImage *)draggedImage; -/// \@end -/// \endcode -/// -/// This says that NSDraggingInfo requires two methods and requires everything -/// that the two "referenced protocols" 'refproto1' and 'refproto2' require as -/// well. -/// -/// \code -/// \@interface ImplementsNSDraggingInfo : NSObject \<NSDraggingInfo> -/// \@end -/// \endcode -/// -/// ObjC protocols inspired Java interfaces. Unlike Java, ObjC classes and -/// protocols are in distinct namespaces. For example, Cocoa defines both -/// an NSObject protocol and class (which isn't allowed in Java). As a result, -/// protocols are referenced using angle brackets as follows: -/// -/// id \<NSDraggingInfo> anyObjectThatImplementsNSDraggingInfo; -/// -class ObjCProtocolDecl : public ObjCContainerDecl, - public Redeclarable<ObjCProtocolDecl> { - void anchor() override; - - struct DefinitionData { - // \brief The declaration that defines this protocol. - ObjCProtocolDecl *Definition; - - /// \brief Referenced protocols - ObjCProtocolList ReferencedProtocols; - }; - - /// \brief Contains a pointer to the data associated with this class, - /// which will be NULL if this class has not yet been defined. - /// - /// The bit indicates when we don't need to check for out-of-date - /// declarations. It will be set unless modules are enabled. - llvm::PointerIntPair<DefinitionData *, 1, bool> Data; - - DefinitionData &data() const { - assert(Data.getPointer() && "Objective-C protocol has no definition!"); - return *Data.getPointer(); - } - - ObjCProtocolDecl(ASTContext &C, DeclContext *DC, IdentifierInfo *Id, - SourceLocation nameLoc, SourceLocation atStartLoc, - ObjCProtocolDecl *PrevDecl); - - void allocateDefinitionData(); - - typedef Redeclarable<ObjCProtocolDecl> redeclarable_base; - ObjCProtocolDecl *getNextRedeclarationImpl() override { - return getNextRedeclaration(); - } - ObjCProtocolDecl *getPreviousDeclImpl() override { - return getPreviousDecl(); - } - ObjCProtocolDecl *getMostRecentDeclImpl() override { - return getMostRecentDecl(); - } - -public: - static ObjCProtocolDecl *Create(ASTContext &C, DeclContext *DC, - IdentifierInfo *Id, - SourceLocation nameLoc, - SourceLocation atStartLoc, - ObjCProtocolDecl *PrevDecl); - - static ObjCProtocolDecl *CreateDeserialized(ASTContext &C, unsigned ID); - - const ObjCProtocolList &getReferencedProtocols() const { - assert(hasDefinition() && "No definition available!"); - return data().ReferencedProtocols; - } - typedef ObjCProtocolList::iterator protocol_iterator; - typedef llvm::iterator_range<protocol_iterator> protocol_range; - - protocol_range protocols() const { - return protocol_range(protocol_begin(), protocol_end()); - } - protocol_iterator protocol_begin() const { - if (!hasDefinition()) - return protocol_iterator(); - - return data().ReferencedProtocols.begin(); - } - protocol_iterator protocol_end() const { - if (!hasDefinition()) - return protocol_iterator(); - - return data().ReferencedProtocols.end(); - } - typedef ObjCProtocolList::loc_iterator protocol_loc_iterator; - typedef llvm::iterator_range<protocol_loc_iterator> protocol_loc_range; - - protocol_loc_range protocol_locs() const { - return protocol_loc_range(protocol_loc_begin(), protocol_loc_end()); - } - protocol_loc_iterator protocol_loc_begin() const { - if (!hasDefinition()) - return protocol_loc_iterator(); - - return data().ReferencedProtocols.loc_begin(); - } - protocol_loc_iterator protocol_loc_end() const { - if (!hasDefinition()) - return protocol_loc_iterator(); - - return data().ReferencedProtocols.loc_end(); - } - unsigned protocol_size() const { - if (!hasDefinition()) - return 0; - - return data().ReferencedProtocols.size(); - } - - /// setProtocolList - Set the list of protocols that this interface - /// implements. - void setProtocolList(ObjCProtocolDecl *const*List, unsigned Num, - const SourceLocation *Locs, ASTContext &C) { - assert(hasDefinition() && "Protocol is not defined"); - data().ReferencedProtocols.set(List, Num, Locs, C); - } - - ObjCProtocolDecl *lookupProtocolNamed(IdentifierInfo *PName); - - // Lookup a method. First, we search locally. If a method isn't - // found, we search referenced protocols and class categories. - ObjCMethodDecl *lookupMethod(Selector Sel, bool isInstance) const; - ObjCMethodDecl *lookupInstanceMethod(Selector Sel) const { - return lookupMethod(Sel, true/*isInstance*/); - } - ObjCMethodDecl *lookupClassMethod(Selector Sel) const { - return lookupMethod(Sel, false/*isInstance*/); - } - - /// \brief Determine whether this protocol has a definition. - bool hasDefinition() const { - // If the name of this protocol is out-of-date, bring it up-to-date, which - // might bring in a definition. - // Note: a null value indicates that we don't have a definition and that - // modules are enabled. - if (!Data.getOpaqueValue()) - getMostRecentDecl(); - - return Data.getPointer(); - } - - /// \brief Retrieve the definition of this protocol, if any. - ObjCProtocolDecl *getDefinition() { - return hasDefinition()? Data.getPointer()->Definition : nullptr; - } - - /// \brief Retrieve the definition of this protocol, if any. - const ObjCProtocolDecl *getDefinition() const { - return hasDefinition()? Data.getPointer()->Definition : nullptr; - } - - /// \brief Determine whether this particular declaration is also the - /// definition. - bool isThisDeclarationADefinition() const { - return getDefinition() == this; - } - - /// \brief Starts the definition of this Objective-C protocol. - void startDefinition(); - - /// Produce a name to be used for protocol's metadata. It comes either via - /// objc_runtime_name attribute or protocol name. - StringRef getObjCRuntimeNameAsString() const; - - SourceRange getSourceRange() const override LLVM_READONLY { - if (isThisDeclarationADefinition()) - return ObjCContainerDecl::getSourceRange(); - - return SourceRange(getAtStartLoc(), getLocation()); - } - - typedef redeclarable_base::redecl_range redecl_range; - typedef redeclarable_base::redecl_iterator redecl_iterator; - using redeclarable_base::redecls_begin; - using redeclarable_base::redecls_end; - using redeclarable_base::redecls; - using redeclarable_base::getPreviousDecl; - using redeclarable_base::getMostRecentDecl; - using redeclarable_base::isFirstDecl; - - /// Retrieves the canonical declaration of this Objective-C protocol. - ObjCProtocolDecl *getCanonicalDecl() override { return getFirstDecl(); } - const ObjCProtocolDecl *getCanonicalDecl() const { return getFirstDecl(); } - - void collectPropertiesToImplement(PropertyMap &PM, - PropertyDeclOrder &PO) const override; - - void collectInheritedProtocolProperties(const ObjCPropertyDecl *Property, - ProtocolPropertyMap &PM) const; - - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { return K == ObjCProtocol; } - - friend class ASTReader; - friend class ASTDeclReader; - friend class ASTDeclWriter; -}; - -/// ObjCCategoryDecl - Represents a category declaration. A category allows -/// you to add methods to an existing class (without subclassing or modifying -/// the original class interface or implementation:-). Categories don't allow -/// you to add instance data. The following example adds "myMethod" to all -/// NSView's within a process: -/// -/// \@interface NSView (MyViewMethods) -/// - myMethod; -/// \@end -/// -/// Categories also allow you to split the implementation of a class across -/// several files (a feature more naturally supported in C++). -/// -/// Categories were originally inspired by dynamic languages such as Common -/// Lisp and Smalltalk. More traditional class-based languages (C++, Java) -/// don't support this level of dynamism, which is both powerful and dangerous. -/// -class ObjCCategoryDecl : public ObjCContainerDecl { - void anchor() override; - - /// Interface belonging to this category - ObjCInterfaceDecl *ClassInterface; - - /// The type parameters associated with this category, if any. - ObjCTypeParamList *TypeParamList; - - /// referenced protocols in this category. - ObjCProtocolList ReferencedProtocols; - - /// Next category belonging to this class. - /// FIXME: this should not be a singly-linked list. Move storage elsewhere. - ObjCCategoryDecl *NextClassCategory; - - /// \brief The location of the category name in this declaration. - SourceLocation CategoryNameLoc; - - /// class extension may have private ivars. - SourceLocation IvarLBraceLoc; - SourceLocation IvarRBraceLoc; - - ObjCCategoryDecl(DeclContext *DC, SourceLocation AtLoc, - SourceLocation ClassNameLoc, SourceLocation CategoryNameLoc, - IdentifierInfo *Id, ObjCInterfaceDecl *IDecl, - ObjCTypeParamList *typeParamList, - SourceLocation IvarLBraceLoc=SourceLocation(), - SourceLocation IvarRBraceLoc=SourceLocation()); - -public: - - static ObjCCategoryDecl *Create(ASTContext &C, DeclContext *DC, - SourceLocation AtLoc, - SourceLocation ClassNameLoc, - SourceLocation CategoryNameLoc, - IdentifierInfo *Id, - ObjCInterfaceDecl *IDecl, - ObjCTypeParamList *typeParamList, - SourceLocation IvarLBraceLoc=SourceLocation(), - SourceLocation IvarRBraceLoc=SourceLocation()); - static ObjCCategoryDecl *CreateDeserialized(ASTContext &C, unsigned ID); - - ObjCInterfaceDecl *getClassInterface() { return ClassInterface; } - const ObjCInterfaceDecl *getClassInterface() const { return ClassInterface; } - - /// Retrieve the type parameter list associated with this category or - /// extension. - ObjCTypeParamList *getTypeParamList() const { return TypeParamList; } - - /// Set the type parameters of this category. - /// - /// This function is used by the AST importer, which must import the type - /// parameters after creating their DeclContext to avoid loops. - void setTypeParamList(ObjCTypeParamList *TPL); - - - ObjCCategoryImplDecl *getImplementation() const; - void setImplementation(ObjCCategoryImplDecl *ImplD); - - /// setProtocolList - Set the list of protocols that this interface - /// implements. - void setProtocolList(ObjCProtocolDecl *const*List, unsigned Num, - const SourceLocation *Locs, ASTContext &C) { - ReferencedProtocols.set(List, Num, Locs, C); - } - - const ObjCProtocolList &getReferencedProtocols() const { - return ReferencedProtocols; - } - - typedef ObjCProtocolList::iterator protocol_iterator; - typedef llvm::iterator_range<protocol_iterator> protocol_range; - - protocol_range protocols() const { - return protocol_range(protocol_begin(), protocol_end()); - } - protocol_iterator protocol_begin() const { - return ReferencedProtocols.begin(); - } - protocol_iterator protocol_end() const { return ReferencedProtocols.end(); } - unsigned protocol_size() const { return ReferencedProtocols.size(); } - typedef ObjCProtocolList::loc_iterator protocol_loc_iterator; - typedef llvm::iterator_range<protocol_loc_iterator> protocol_loc_range; - - protocol_loc_range protocol_locs() const { - return protocol_loc_range(protocol_loc_begin(), protocol_loc_end()); - } - protocol_loc_iterator protocol_loc_begin() const { - return ReferencedProtocols.loc_begin(); - } - protocol_loc_iterator protocol_loc_end() const { - return ReferencedProtocols.loc_end(); - } - - ObjCCategoryDecl *getNextClassCategory() const { return NextClassCategory; } - - /// \brief Retrieve the pointer to the next stored category (or extension), - /// which may be hidden. - ObjCCategoryDecl *getNextClassCategoryRaw() const { - return NextClassCategory; - } - - bool IsClassExtension() const { return getIdentifier() == nullptr; } - - typedef specific_decl_iterator<ObjCIvarDecl> ivar_iterator; - typedef llvm::iterator_range<specific_decl_iterator<ObjCIvarDecl>> ivar_range; - - ivar_range ivars() const { return ivar_range(ivar_begin(), ivar_end()); } - ivar_iterator ivar_begin() const { - return ivar_iterator(decls_begin()); - } - ivar_iterator ivar_end() const { - return ivar_iterator(decls_end()); - } - unsigned ivar_size() const { - return std::distance(ivar_begin(), ivar_end()); - } - bool ivar_empty() const { - return ivar_begin() == ivar_end(); - } - - SourceLocation getCategoryNameLoc() const { return CategoryNameLoc; } - void setCategoryNameLoc(SourceLocation Loc) { CategoryNameLoc = Loc; } - - void setIvarLBraceLoc(SourceLocation Loc) { IvarLBraceLoc = Loc; } - SourceLocation getIvarLBraceLoc() const { return IvarLBraceLoc; } - void setIvarRBraceLoc(SourceLocation Loc) { IvarRBraceLoc = Loc; } - SourceLocation getIvarRBraceLoc() const { return IvarRBraceLoc; } - - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { return K == ObjCCategory; } - - friend class ASTDeclReader; - friend class ASTDeclWriter; -}; - -class ObjCImplDecl : public ObjCContainerDecl { - void anchor() override; - - /// Class interface for this class/category implementation - ObjCInterfaceDecl *ClassInterface; - -protected: - ObjCImplDecl(Kind DK, DeclContext *DC, - ObjCInterfaceDecl *classInterface, - SourceLocation nameLoc, SourceLocation atStartLoc) - : ObjCContainerDecl(DK, DC, - classInterface? classInterface->getIdentifier() - : nullptr, - nameLoc, atStartLoc), - ClassInterface(classInterface) {} - -public: - const ObjCInterfaceDecl *getClassInterface() const { return ClassInterface; } - ObjCInterfaceDecl *getClassInterface() { return ClassInterface; } - void setClassInterface(ObjCInterfaceDecl *IFace); - - void addInstanceMethod(ObjCMethodDecl *method) { - // FIXME: Context should be set correctly before we get here. - method->setLexicalDeclContext(this); - addDecl(method); - } - void addClassMethod(ObjCMethodDecl *method) { - // FIXME: Context should be set correctly before we get here. - method->setLexicalDeclContext(this); - addDecl(method); - } - - void addPropertyImplementation(ObjCPropertyImplDecl *property); - - ObjCPropertyImplDecl *FindPropertyImplDecl(IdentifierInfo *propertyId) const; - ObjCPropertyImplDecl *FindPropertyImplIvarDecl(IdentifierInfo *ivarId) const; - - // Iterator access to properties. - typedef specific_decl_iterator<ObjCPropertyImplDecl> propimpl_iterator; - typedef llvm::iterator_range<specific_decl_iterator<ObjCPropertyImplDecl>> - propimpl_range; - - propimpl_range property_impls() const { - return propimpl_range(propimpl_begin(), propimpl_end()); - } - propimpl_iterator propimpl_begin() const { - return propimpl_iterator(decls_begin()); - } - propimpl_iterator propimpl_end() const { - return propimpl_iterator(decls_end()); - } - - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { - return K >= firstObjCImpl && K <= lastObjCImpl; - } -}; - -/// ObjCCategoryImplDecl - An object of this class encapsulates a category -/// \@implementation declaration. If a category class has declaration of a -/// property, its implementation must be specified in the category's -/// \@implementation declaration. Example: -/// \@interface I \@end -/// \@interface I(CATEGORY) -/// \@property int p1, d1; -/// \@end -/// \@implementation I(CATEGORY) -/// \@dynamic p1,d1; -/// \@end -/// -/// ObjCCategoryImplDecl -class ObjCCategoryImplDecl : public ObjCImplDecl { - void anchor() override; - - // Category name - IdentifierInfo *Id; - - // Category name location - SourceLocation CategoryNameLoc; - - ObjCCategoryImplDecl(DeclContext *DC, IdentifierInfo *Id, - ObjCInterfaceDecl *classInterface, - SourceLocation nameLoc, SourceLocation atStartLoc, - SourceLocation CategoryNameLoc) - : ObjCImplDecl(ObjCCategoryImpl, DC, classInterface, nameLoc, atStartLoc), - Id(Id), CategoryNameLoc(CategoryNameLoc) {} -public: - static ObjCCategoryImplDecl *Create(ASTContext &C, DeclContext *DC, - IdentifierInfo *Id, - ObjCInterfaceDecl *classInterface, - SourceLocation nameLoc, - SourceLocation atStartLoc, - SourceLocation CategoryNameLoc); - static ObjCCategoryImplDecl *CreateDeserialized(ASTContext &C, unsigned ID); - - /// getIdentifier - Get the identifier that names the category - /// interface associated with this implementation. - /// FIXME: This is a bad API, we are hiding NamedDecl::getIdentifier() - /// with a different meaning. For example: - /// ((NamedDecl *)SomeCategoryImplDecl)->getIdentifier() - /// returns the class interface name, whereas - /// ((ObjCCategoryImplDecl *)SomeCategoryImplDecl)->getIdentifier() - /// returns the category name. - IdentifierInfo *getIdentifier() const { - return Id; - } - void setIdentifier(IdentifierInfo *II) { Id = II; } - - ObjCCategoryDecl *getCategoryDecl() const; - - SourceLocation getCategoryNameLoc() const { return CategoryNameLoc; } - - /// getName - Get the name of identifier for the class interface associated - /// with this implementation as a StringRef. - // - // FIXME: This is a bad API, we are hiding NamedDecl::getName with a different - // meaning. - StringRef getName() const { return Id ? Id->getName() : StringRef(); } - - /// @brief Get the name of the class associated with this interface. - // - // FIXME: Deprecated, move clients to getName(). - std::string getNameAsString() const { - return getName(); - } - - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { return K == ObjCCategoryImpl;} - - friend class ASTDeclReader; - friend class ASTDeclWriter; -}; - -raw_ostream &operator<<(raw_ostream &OS, const ObjCCategoryImplDecl &CID); - -/// ObjCImplementationDecl - Represents a class definition - this is where -/// method definitions are specified. For example: -/// -/// @code -/// \@implementation MyClass -/// - (void)myMethod { /* do something */ } -/// \@end -/// @endcode -/// -/// In a non-fragile runtime, instance variables can appear in the class -/// interface, class extensions (nameless categories), and in the implementation -/// itself, as well as being synthesized as backing storage for properties. -/// -/// In a fragile runtime, instance variables are specified in the class -/// interface, \em not in the implementation. Nevertheless (for legacy reasons), -/// we allow instance variables to be specified in the implementation. When -/// specified, they need to be \em identical to the interface. -class ObjCImplementationDecl : public ObjCImplDecl { - void anchor() override; - /// Implementation Class's super class. - ObjCInterfaceDecl *SuperClass; - SourceLocation SuperLoc; - - /// \@implementation may have private ivars. - SourceLocation IvarLBraceLoc; - SourceLocation IvarRBraceLoc; - - /// Support for ivar initialization. - /// \brief The arguments used to initialize the ivars - LazyCXXCtorInitializersPtr IvarInitializers; - unsigned NumIvarInitializers; - - /// Do the ivars of this class require initialization other than - /// zero-initialization? - bool HasNonZeroConstructors : 1; - - /// Do the ivars of this class require non-trivial destruction? - bool HasDestructors : 1; - - ObjCImplementationDecl(DeclContext *DC, - ObjCInterfaceDecl *classInterface, - ObjCInterfaceDecl *superDecl, - SourceLocation nameLoc, SourceLocation atStartLoc, - SourceLocation superLoc = SourceLocation(), - SourceLocation IvarLBraceLoc=SourceLocation(), - SourceLocation IvarRBraceLoc=SourceLocation()) - : ObjCImplDecl(ObjCImplementation, DC, classInterface, nameLoc, atStartLoc), - SuperClass(superDecl), SuperLoc(superLoc), IvarLBraceLoc(IvarLBraceLoc), - IvarRBraceLoc(IvarRBraceLoc), - IvarInitializers(nullptr), NumIvarInitializers(0), - HasNonZeroConstructors(false), HasDestructors(false) {} -public: - static ObjCImplementationDecl *Create(ASTContext &C, DeclContext *DC, - ObjCInterfaceDecl *classInterface, - ObjCInterfaceDecl *superDecl, - SourceLocation nameLoc, - SourceLocation atStartLoc, - SourceLocation superLoc = SourceLocation(), - SourceLocation IvarLBraceLoc=SourceLocation(), - SourceLocation IvarRBraceLoc=SourceLocation()); - - static ObjCImplementationDecl *CreateDeserialized(ASTContext &C, unsigned ID); - - /// init_iterator - Iterates through the ivar initializer list. - typedef CXXCtorInitializer **init_iterator; - - /// init_const_iterator - Iterates through the ivar initializer list. - typedef CXXCtorInitializer * const * init_const_iterator; - - typedef llvm::iterator_range<init_iterator> init_range; - typedef llvm::iterator_range<init_const_iterator> init_const_range; - - init_range inits() { return init_range(init_begin(), init_end()); } - init_const_range inits() const { - return init_const_range(init_begin(), init_end()); - } - - /// init_begin() - Retrieve an iterator to the first initializer. - init_iterator init_begin() { - const auto *ConstThis = this; - return const_cast<init_iterator>(ConstThis->init_begin()); - } - /// begin() - Retrieve an iterator to the first initializer. - init_const_iterator init_begin() const; - - /// init_end() - Retrieve an iterator past the last initializer. - init_iterator init_end() { - return init_begin() + NumIvarInitializers; - } - /// end() - Retrieve an iterator past the last initializer. - init_const_iterator init_end() const { - return init_begin() + NumIvarInitializers; - } - /// getNumArgs - Number of ivars which must be initialized. - unsigned getNumIvarInitializers() const { - return NumIvarInitializers; - } - - void setNumIvarInitializers(unsigned numNumIvarInitializers) { - NumIvarInitializers = numNumIvarInitializers; - } - - void setIvarInitializers(ASTContext &C, - CXXCtorInitializer ** initializers, - unsigned numInitializers); - - /// Do any of the ivars of this class (not counting its base classes) - /// require construction other than zero-initialization? - bool hasNonZeroConstructors() const { return HasNonZeroConstructors; } - void setHasNonZeroConstructors(bool val) { HasNonZeroConstructors = val; } - - /// Do any of the ivars of this class (not counting its base classes) - /// require non-trivial destruction? - bool hasDestructors() const { return HasDestructors; } - void setHasDestructors(bool val) { HasDestructors = val; } - - /// getIdentifier - Get the identifier that names the class - /// interface associated with this implementation. - IdentifierInfo *getIdentifier() const { - return getClassInterface()->getIdentifier(); - } - - /// getName - Get the name of identifier for the class interface associated - /// with this implementation as a StringRef. - // - // FIXME: This is a bad API, we are hiding NamedDecl::getName with a different - // meaning. - StringRef getName() const { - assert(getIdentifier() && "Name is not a simple identifier"); - return getIdentifier()->getName(); - } - - /// @brief Get the name of the class associated with this interface. - // - // FIXME: Move to StringRef API. - std::string getNameAsString() const { - return getName(); - } - - /// Produce a name to be used for class's metadata. It comes either via - /// class's objc_runtime_name attribute or class name. - StringRef getObjCRuntimeNameAsString() const; - - const ObjCInterfaceDecl *getSuperClass() const { return SuperClass; } - ObjCInterfaceDecl *getSuperClass() { return SuperClass; } - SourceLocation getSuperClassLoc() const { return SuperLoc; } - - void setSuperClass(ObjCInterfaceDecl * superCls) { SuperClass = superCls; } - - void setIvarLBraceLoc(SourceLocation Loc) { IvarLBraceLoc = Loc; } - SourceLocation getIvarLBraceLoc() const { return IvarLBraceLoc; } - void setIvarRBraceLoc(SourceLocation Loc) { IvarRBraceLoc = Loc; } - SourceLocation getIvarRBraceLoc() const { return IvarRBraceLoc; } - - typedef specific_decl_iterator<ObjCIvarDecl> ivar_iterator; - typedef llvm::iterator_range<specific_decl_iterator<ObjCIvarDecl>> ivar_range; - - ivar_range ivars() const { return ivar_range(ivar_begin(), ivar_end()); } - ivar_iterator ivar_begin() const { - return ivar_iterator(decls_begin()); - } - ivar_iterator ivar_end() const { - return ivar_iterator(decls_end()); - } - unsigned ivar_size() const { - return std::distance(ivar_begin(), ivar_end()); - } - bool ivar_empty() const { - return ivar_begin() == ivar_end(); - } - - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { return K == ObjCImplementation; } - - friend class ASTDeclReader; - friend class ASTDeclWriter; -}; - -raw_ostream &operator<<(raw_ostream &OS, const ObjCImplementationDecl &ID); - -/// ObjCCompatibleAliasDecl - Represents alias of a class. This alias is -/// declared as \@compatibility_alias alias class. -class ObjCCompatibleAliasDecl : public NamedDecl { - void anchor() override; - /// Class that this is an alias of. - ObjCInterfaceDecl *AliasedClass; - - ObjCCompatibleAliasDecl(DeclContext *DC, SourceLocation L, IdentifierInfo *Id, - ObjCInterfaceDecl* aliasedClass) - : NamedDecl(ObjCCompatibleAlias, DC, L, Id), AliasedClass(aliasedClass) {} -public: - static ObjCCompatibleAliasDecl *Create(ASTContext &C, DeclContext *DC, - SourceLocation L, IdentifierInfo *Id, - ObjCInterfaceDecl* aliasedClass); - - static ObjCCompatibleAliasDecl *CreateDeserialized(ASTContext &C, - unsigned ID); - - const ObjCInterfaceDecl *getClassInterface() const { return AliasedClass; } - ObjCInterfaceDecl *getClassInterface() { return AliasedClass; } - void setClassInterface(ObjCInterfaceDecl *D) { AliasedClass = D; } - - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { return K == ObjCCompatibleAlias; } - -}; - -/// \brief Represents one property declaration in an Objective-C interface. -/// -/// For example: -/// \code{.mm} -/// \@property (assign, readwrite) int MyProperty; -/// \endcode -class ObjCPropertyDecl : public NamedDecl { - void anchor() override; -public: - enum PropertyAttributeKind { - OBJC_PR_noattr = 0x00, - OBJC_PR_readonly = 0x01, - OBJC_PR_getter = 0x02, - OBJC_PR_assign = 0x04, - OBJC_PR_readwrite = 0x08, - OBJC_PR_retain = 0x10, - OBJC_PR_copy = 0x20, - OBJC_PR_nonatomic = 0x40, - OBJC_PR_setter = 0x80, - OBJC_PR_atomic = 0x100, - OBJC_PR_weak = 0x200, - OBJC_PR_strong = 0x400, - OBJC_PR_unsafe_unretained = 0x800, - /// Indicates that the nullability of the type was spelled with a - /// property attribute rather than a type qualifier. - OBJC_PR_nullability = 0x1000, - OBJC_PR_null_resettable = 0x2000 - // Adding a property should change NumPropertyAttrsBits - }; - - enum { - /// \brief Number of bits fitting all the property attributes. - NumPropertyAttrsBits = 14 - }; - - enum SetterKind { Assign, Retain, Copy, Weak }; - enum PropertyControl { None, Required, Optional }; -private: - SourceLocation AtLoc; // location of \@property - SourceLocation LParenLoc; // location of '(' starting attribute list or null. - QualType DeclType; - TypeSourceInfo *DeclTypeSourceInfo; - unsigned PropertyAttributes : NumPropertyAttrsBits; - unsigned PropertyAttributesAsWritten : NumPropertyAttrsBits; - // \@required/\@optional - unsigned PropertyImplementation : 2; - - Selector GetterName; // getter name of NULL if no getter - Selector SetterName; // setter name of NULL if no setter - - ObjCMethodDecl *GetterMethodDecl; // Declaration of getter instance method - ObjCMethodDecl *SetterMethodDecl; // Declaration of setter instance method - ObjCIvarDecl *PropertyIvarDecl; // Synthesize ivar for this property - - ObjCPropertyDecl(DeclContext *DC, SourceLocation L, IdentifierInfo *Id, - SourceLocation AtLocation, SourceLocation LParenLocation, - QualType T, TypeSourceInfo *TSI, - PropertyControl propControl) - : NamedDecl(ObjCProperty, DC, L, Id), AtLoc(AtLocation), - LParenLoc(LParenLocation), DeclType(T), DeclTypeSourceInfo(TSI), - PropertyAttributes(OBJC_PR_noattr), - PropertyAttributesAsWritten(OBJC_PR_noattr), - PropertyImplementation(propControl), - GetterName(Selector()), - SetterName(Selector()), - GetterMethodDecl(nullptr), SetterMethodDecl(nullptr), - PropertyIvarDecl(nullptr) {} - -public: - static ObjCPropertyDecl *Create(ASTContext &C, DeclContext *DC, - SourceLocation L, - IdentifierInfo *Id, SourceLocation AtLocation, - SourceLocation LParenLocation, - QualType T, - TypeSourceInfo *TSI, - PropertyControl propControl = None); - - static ObjCPropertyDecl *CreateDeserialized(ASTContext &C, unsigned ID); - - SourceLocation getAtLoc() const { return AtLoc; } - void setAtLoc(SourceLocation L) { AtLoc = L; } - - SourceLocation getLParenLoc() const { return LParenLoc; } - void setLParenLoc(SourceLocation L) { LParenLoc = L; } - - TypeSourceInfo *getTypeSourceInfo() const { return DeclTypeSourceInfo; } - - QualType getType() const { return DeclType; } - - void setType(QualType T, TypeSourceInfo *TSI) { - DeclType = T; - DeclTypeSourceInfo = TSI; - } - - /// Retrieve the type when this property is used with a specific base object - /// type. - QualType getUsageType(QualType objectType) const; - - PropertyAttributeKind getPropertyAttributes() const { - return PropertyAttributeKind(PropertyAttributes); - } - void setPropertyAttributes(PropertyAttributeKind PRVal) { - PropertyAttributes |= PRVal; - } - void overwritePropertyAttributes(unsigned PRVal) { - PropertyAttributes = PRVal; - } - - PropertyAttributeKind getPropertyAttributesAsWritten() const { - return PropertyAttributeKind(PropertyAttributesAsWritten); - } - - void setPropertyAttributesAsWritten(PropertyAttributeKind PRVal) { - PropertyAttributesAsWritten = PRVal; - } - - // Helper methods for accessing attributes. - - /// isReadOnly - Return true iff the property has a setter. - bool isReadOnly() const { - return (PropertyAttributes & OBJC_PR_readonly); - } - - /// isAtomic - Return true if the property is atomic. - bool isAtomic() const { - return (PropertyAttributes & OBJC_PR_atomic); - } - - /// isRetaining - Return true if the property retains its value. - bool isRetaining() const { - return (PropertyAttributes & - (OBJC_PR_retain | OBJC_PR_strong | OBJC_PR_copy)); - } - - /// getSetterKind - Return the method used for doing assignment in - /// the property setter. This is only valid if the property has been - /// defined to have a setter. - SetterKind getSetterKind() const { - if (PropertyAttributes & OBJC_PR_strong) - return getType()->isBlockPointerType() ? Copy : Retain; - if (PropertyAttributes & OBJC_PR_retain) - return Retain; - if (PropertyAttributes & OBJC_PR_copy) - return Copy; - if (PropertyAttributes & OBJC_PR_weak) - return Weak; - return Assign; - } - - Selector getGetterName() const { return GetterName; } - void setGetterName(Selector Sel) { GetterName = Sel; } - - Selector getSetterName() const { return SetterName; } - void setSetterName(Selector Sel) { SetterName = Sel; } - - ObjCMethodDecl *getGetterMethodDecl() const { return GetterMethodDecl; } - void setGetterMethodDecl(ObjCMethodDecl *gDecl) { GetterMethodDecl = gDecl; } - - ObjCMethodDecl *getSetterMethodDecl() const { return SetterMethodDecl; } - void setSetterMethodDecl(ObjCMethodDecl *gDecl) { SetterMethodDecl = gDecl; } - - // Related to \@optional/\@required declared in \@protocol - void setPropertyImplementation(PropertyControl pc) { - PropertyImplementation = pc; - } - PropertyControl getPropertyImplementation() const { - return PropertyControl(PropertyImplementation); - } - - void setPropertyIvarDecl(ObjCIvarDecl *Ivar) { - PropertyIvarDecl = Ivar; - } - ObjCIvarDecl *getPropertyIvarDecl() const { - return PropertyIvarDecl; - } - - SourceRange getSourceRange() const override LLVM_READONLY { - return SourceRange(AtLoc, getLocation()); - } - - /// Get the default name of the synthesized ivar. - IdentifierInfo *getDefaultSynthIvarName(ASTContext &Ctx) const; - - /// Lookup a property by name in the specified DeclContext. - static ObjCPropertyDecl *findPropertyDecl(const DeclContext *DC, - const IdentifierInfo *propertyID); - - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Kind K) { return K == ObjCProperty; } -}; - -/// ObjCPropertyImplDecl - Represents implementation declaration of a property -/// in a class or category implementation block. For example: -/// \@synthesize prop1 = ivar1; -/// -class ObjCPropertyImplDecl : public Decl { -public: - enum Kind { - Synthesize, - Dynamic - }; -private: - SourceLocation AtLoc; // location of \@synthesize or \@dynamic - - /// \brief For \@synthesize, the location of the ivar, if it was written in - /// the source code. - /// - /// \code - /// \@synthesize int a = b - /// \endcode - SourceLocation IvarLoc; - - /// Property declaration being implemented - ObjCPropertyDecl *PropertyDecl; - - /// Null for \@dynamic. Required for \@synthesize. - ObjCIvarDecl *PropertyIvarDecl; - - /// Null for \@dynamic. Non-null if property must be copy-constructed in - /// getter. - Expr *GetterCXXConstructor; - - /// Null for \@dynamic. Non-null if property has assignment operator to call - /// in Setter synthesis. - Expr *SetterCXXAssignment; - - ObjCPropertyImplDecl(DeclContext *DC, SourceLocation atLoc, SourceLocation L, - ObjCPropertyDecl *property, - Kind PK, - ObjCIvarDecl *ivarDecl, - SourceLocation ivarLoc) - : Decl(ObjCPropertyImpl, DC, L), AtLoc(atLoc), - IvarLoc(ivarLoc), PropertyDecl(property), PropertyIvarDecl(ivarDecl), - GetterCXXConstructor(nullptr), SetterCXXAssignment(nullptr) { - assert (PK == Dynamic || PropertyIvarDecl); - } - -public: - static ObjCPropertyImplDecl *Create(ASTContext &C, DeclContext *DC, - SourceLocation atLoc, SourceLocation L, - ObjCPropertyDecl *property, - Kind PK, - ObjCIvarDecl *ivarDecl, - SourceLocation ivarLoc); - - static ObjCPropertyImplDecl *CreateDeserialized(ASTContext &C, unsigned ID); - - SourceRange getSourceRange() const override LLVM_READONLY; - - SourceLocation getLocStart() const LLVM_READONLY { return AtLoc; } - void setAtLoc(SourceLocation Loc) { AtLoc = Loc; } - - ObjCPropertyDecl *getPropertyDecl() const { - return PropertyDecl; - } - void setPropertyDecl(ObjCPropertyDecl *Prop) { PropertyDecl = Prop; } - - Kind getPropertyImplementation() const { - return PropertyIvarDecl ? Synthesize : Dynamic; - } - - ObjCIvarDecl *getPropertyIvarDecl() const { - return PropertyIvarDecl; - } - SourceLocation getPropertyIvarDeclLoc() const { return IvarLoc; } - - void setPropertyIvarDecl(ObjCIvarDecl *Ivar, - SourceLocation IvarLoc) { - PropertyIvarDecl = Ivar; - this->IvarLoc = IvarLoc; - } - - /// \brief For \@synthesize, returns true if an ivar name was explicitly - /// specified. - /// - /// \code - /// \@synthesize int a = b; // true - /// \@synthesize int a; // false - /// \endcode - bool isIvarNameSpecified() const { - return IvarLoc.isValid() && IvarLoc != getLocation(); - } - - Expr *getGetterCXXConstructor() const { - return GetterCXXConstructor; - } - void setGetterCXXConstructor(Expr *getterCXXConstructor) { - GetterCXXConstructor = getterCXXConstructor; - } - - Expr *getSetterCXXAssignment() const { - return SetterCXXAssignment; - } - void setSetterCXXAssignment(Expr *setterCXXAssignment) { - SetterCXXAssignment = setterCXXAssignment; - } - - static bool classof(const Decl *D) { return classofKind(D->getKind()); } - static bool classofKind(Decl::Kind K) { return K == ObjCPropertyImpl; } - - friend class ASTDeclReader; -}; - -template<bool (*Filter)(ObjCCategoryDecl *)> -void -ObjCInterfaceDecl::filtered_category_iterator<Filter>:: -findAcceptableCategory() { - while (Current && !Filter(Current)) - Current = Current->getNextClassCategoryRaw(); -} - -template<bool (*Filter)(ObjCCategoryDecl *)> -inline ObjCInterfaceDecl::filtered_category_iterator<Filter> & -ObjCInterfaceDecl::filtered_category_iterator<Filter>::operator++() { - Current = Current->getNextClassCategoryRaw(); - findAcceptableCategory(); - return *this; -} - -inline bool ObjCInterfaceDecl::isVisibleCategory(ObjCCategoryDecl *Cat) { - return !Cat->isHidden(); -} - -inline bool ObjCInterfaceDecl::isVisibleExtension(ObjCCategoryDecl *Cat) { - return Cat->IsClassExtension() && !Cat->isHidden(); -} - -inline bool ObjCInterfaceDecl::isKnownExtension(ObjCCategoryDecl *Cat) { - return Cat->IsClassExtension(); -} - -} // end namespace clang -#endif |
