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//
// 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"
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 {
void operator=(const ObjCListBase &); // DO NOT IMPLEMENT
ObjCListBase(const ObjCListBase&); // DO NOT IMPLEMENT
protected:
/// List is an array of pointers to objects that are not owned by this object.
void **List;
unsigned NumElts;
public:
ObjCListBase() : List(0), 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(0) { }
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;
// Synthesized declaration method for a property setter/getter
unsigned IsSynthesized : 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 : 6;
/// \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;
// Result type of this method.
QualType MethodDeclType;
// Type source information for the result type.
TypeSourceInfo *ResultTInfo;
/// \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 EndLoc; // the location of the ';' or '}'.
// The following are only used for method definitions, null otherwise.
// FIXME: space savings opportunity, consider a sub-class.
Stmt *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 *ResultTInfo,
DeclContext *contextDecl,
bool isInstance = true,
bool isVariadic = false,
bool isSynthesized = 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),
IsSynthesized(isSynthesized),
IsDefined(isDefined), IsRedeclaration(0), HasRedeclaration(0),
DeclImplementation(impControl), objcDeclQualifier(OBJC_TQ_None),
RelatedResultType(HasRelatedResultType),
SelLocsKind(SelLoc_StandardNoSpace),
MethodDeclType(T), ResultTInfo(ResultTInfo),
ParamsAndSelLocs(0), NumParams(0),
EndLoc(endLoc), Body(0), SelfDecl(0), CmdDecl(0) {
setImplicit(isImplicitlyDeclared);
}
/// \brief A definition will return its interface declaration.
/// An interface declaration will return its definition.
/// Otherwise it will return itself.
virtual ObjCMethodDecl *getNextRedeclaration();
public:
static ObjCMethodDecl *Create(ASTContext &C,
SourceLocation beginLoc,
SourceLocation endLoc,
Selector SelInfo,
QualType T,
TypeSourceInfo *ResultTInfo,
DeclContext *contextDecl,
bool isInstance = true,
bool isVariadic = false,
bool isSynthesized = false,
bool isImplicitlyDeclared = false,
bool isDefined = false,
ImplementationControl impControl = None,
bool HasRelatedResultType = false);
virtual ObjCMethodDecl *getCanonicalDecl();
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);
// Location information, modeled after the Stmt API.
SourceLocation getLocStart() const { return getLocation(); }
SourceLocation getLocEnd() const { return EndLoc; }
void setEndLoc(SourceLocation Loc) { EndLoc = Loc; }
virtual SourceRange getSourceRange() const {
return SourceRange(getLocation(), EndLoc);
}
SourceLocation getSelectorStartLoc() const { return getSelectorLoc(0); }
SourceLocation getSelectorLoc(unsigned Index) const {
assert(Index < getNumSelectorLocs() && "Index out of range!");
if (hasStandardSelLocs())
return getStandardSelectorLoc(Index, getSelector(),
getSelLocsKind() == SelLoc_StandardWithSpace,
llvm::makeArrayRef(const_cast<ParmVarDecl**>(getParams()),
NumParams),
EndLoc);
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 getResultType() const { return MethodDeclType; }
void setResultType(QualType T) { MethodDeclType = T; }
/// \brief Determine the type of an expression that sends a message to this
/// function.
QualType getSendResultType() const {
return getResultType().getNonLValueExprType(getASTContext());
}
TypeSourceInfo *getResultTypeSourceInfo() const { return ResultTInfo; }
void setResultTypeSourceInfo(TypeSourceInfo *TInfo) { ResultTInfo = TInfo; }
// Iterator access to formal parameters.
unsigned param_size() const { return NumParams; }
typedef const ParmVarDecl *const *param_const_iterator;
typedef ParmVarDecl *const *param_iterator;
param_const_iterator param_begin() const { return getParams(); }
param_const_iterator param_end() const { return getParams() + NumParams; }
param_iterator param_begin() { return getParams(); }
param_iterator param_end() { return 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();
}
/// \brief Sets the method's parameters and selector source locations.
/// If the method is implicit (not coming from source) \arg SelLocs is
/// ignored.
void setMethodParams(ASTContext &C,
ArrayRef<ParmVarDecl*> Params,
ArrayRef<SourceLocation> SelLocs =
ArrayRef<SourceLocation>());
// Iterator access to parameter types.
typedef std::const_mem_fun_t<QualType, ParmVarDecl> deref_fun;
typedef llvm::mapped_iterator<param_const_iterator, deref_fun>
arg_type_iterator;
arg_type_iterator arg_type_begin() const {
return llvm::map_iterator(param_begin(), deref_fun(&ParmVarDecl::getType));
}
arg_type_iterator arg_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);
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 isSynthesized() const { return IsSynthesized; }
void setSynthesized(bool isSynth) { IsSynthesized = isSynth; }
bool isDefined() const { return IsDefined; }
void setDefined(bool isDefined) { IsDefined = isDefined; }
// Related to protocols declared in @protocol
void setDeclImplementation(ImplementationControl ic) {
DeclImplementation = ic;
}
ImplementationControl getImplementationControl() const {
return ImplementationControl(DeclImplementation);
}
virtual Stmt *getBody() const {
return (Stmt*) Body;
}
CompoundStmt *getCompoundBody() { return (CompoundStmt*)Body; }
void setBody(Stmt *B) { Body = B; }
/// \brief Returns whether this specific method is a definition.
bool isThisDeclarationADefinition() const { return Body; }
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const ObjCMethodDecl *D) { return true; }
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;
};
/// ObjCContainerDecl - Represents a container for method declarations.
/// Current sub-classes are ObjCInterfaceDecl, ObjCCategoryDecl,
/// ObjCProtocolDecl, and ObjCImplDecl.
///
class ObjCContainerDecl : public NamedDecl, public DeclContext {
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;
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;
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;
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;
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) const;
ObjCMethodDecl *getInstanceMethod(Selector Sel) const {
return getMethod(Sel, true/*isInstance*/);
}
ObjCMethodDecl *getClassMethod(Selector Sel) const {
return getMethod(Sel, false/*isInstance*/);
}
ObjCIvarDecl *getIvarDecl(IdentifierInfo *Id) const;
ObjCPropertyDecl *FindPropertyDeclaration(IdentifierInfo *PropertyId) 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;
}
virtual SourceRange getSourceRange() const {
return SourceRange(AtStart, getAtEndRange().getEnd());
}
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const ObjCContainerDecl *D) { return true; }
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));
}
};
/// ObjCInterfaceDecl - Represents an ObjC class declaration. For example:
///
/// // 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.
///
/// 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 {
/// 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;
/// Class's super class.
ObjCInterfaceDecl *SuperClass;
/// 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;
bool ForwardDecl:1; // declared with @class.
bool InternalInterface:1; // true - no @interface for @implementation
/// \brief Indicates that the contents of this Objective-C class will be
/// completed by the external AST source when required.
mutable bool ExternallyCompleted : 1;
SourceLocation SuperClassLoc; // location of the super class identifier.
SourceLocation EndLoc; // marks the '>', '}', or identifier.
ObjCInterfaceDecl(DeclContext *DC, SourceLocation atLoc, IdentifierInfo *Id,
SourceLocation CLoc, bool FD, bool isInternal);
void LoadExternalDefinition() const;
public:
static ObjCInterfaceDecl *Create(ASTContext &C, DeclContext *DC,
SourceLocation atLoc,
IdentifierInfo *Id,
SourceLocation ClassLoc = SourceLocation(),
bool ForwardDecl = false,
bool isInternal = false);
/// \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();
const ObjCProtocolList &getReferencedProtocols() const {
if (ExternallyCompleted)
LoadExternalDefinition();
return 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 ? getInstanceMethod(Sel)
: getClassMethod(Sel);
}
typedef ObjCProtocolList::iterator protocol_iterator;
protocol_iterator protocol_begin() const {
if (ExternallyCompleted)
LoadExternalDefinition();
return ReferencedProtocols.begin();
}
protocol_iterator protocol_end() const {
if (ExternallyCompleted)
LoadExternalDefinition();
return ReferencedProtocols.end();
}
typedef ObjCProtocolList::loc_iterator protocol_loc_iterator;
protocol_loc_iterator protocol_loc_begin() const {
if (ExternallyCompleted)
LoadExternalDefinition();
return ReferencedProtocols.loc_begin();
}
protocol_loc_iterator protocol_loc_end() const {
if (ExternallyCompleted)
LoadExternalDefinition();
return ReferencedProtocols.loc_end();
}
typedef ObjCList<ObjCProtocolDecl>::iterator all_protocol_iterator;
all_protocol_iterator all_referenced_protocol_begin() const {
if (ExternallyCompleted)
LoadExternalDefinition();
return AllReferencedProtocols.empty() ? protocol_begin()
: AllReferencedProtocols.begin();
}
all_protocol_iterator all_referenced_protocol_end() const {
if (ExternallyCompleted)
LoadExternalDefinition();
return AllReferencedProtocols.empty() ? protocol_end()
: AllReferencedProtocols.end();
}
typedef specific_decl_iterator<ObjCIvarDecl> ivar_iterator;
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(); }
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) { IvarList = ivar; }
/// 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);
}
/// mergeClassExtensionProtocolList - Merge class extension's protocol list
/// into the protocol list for this class.
void mergeClassExtensionProtocolList(ObjCProtocolDecl *const* List,
unsigned Num,
ASTContext &C);
bool isForwardDecl() const { return ForwardDecl; }
void setForwardDecl(bool val) { ForwardDecl = val; }
ObjCInterfaceDecl *getSuperClass() const {
if (ExternallyCompleted)
LoadExternalDefinition();
return SuperClass;
}
void setSuperClass(ObjCInterfaceDecl * superCls) { SuperClass = superCls; }
ObjCCategoryDecl* getCategoryList() const {
if (ExternallyCompleted)
LoadExternalDefinition();
return CategoryList;
}
void setCategoryList(ObjCCategoryDecl *category) {
CategoryList = category;
}
ObjCCategoryDecl* getFirstClassExtension() const;
ObjCPropertyDecl
*FindPropertyVisibleInPrimaryClass(IdentifierInfo *PropertyId) const;
/// 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 != NULL) {
if (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 {
const ObjCInterfaceDecl *Class = this;
while (Class) {
if (Class->hasAttr<ArcWeakrefUnavailableAttr>())
return true;
Class = Class->getSuperClass();
}
return false;
}
ObjCIvarDecl *lookupInstanceVariable(IdentifierInfo *IVarName,
ObjCInterfaceDecl *&ClassDeclared);
ObjCIvarDecl *lookupInstanceVariable(IdentifierInfo *IVarName) {
ObjCInterfaceDecl *ClassDeclared;
return lookupInstanceVariable(IVarName, ClassDeclared);
}
// 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*/);
}
ObjCInterfaceDecl *lookupInheritedClass(const IdentifierInfo *ICName);
// Lookup a method in the classes implementation hierarchy.
ObjCMethodDecl *lookupPrivateMethod(const Selector &Sel, bool Instance=true);
// Location information, modeled after the Stmt API.
SourceLocation getLocStart() const { return getAtStartLoc(); } // '@'interface
SourceLocation getLocEnd() const { return EndLoc; }
void setLocEnd(SourceLocation LE) { EndLoc = LE; }
void setSuperClassLoc(SourceLocation Loc) { SuperClassLoc = Loc; }
SourceLocation getSuperClassLoc() const { return SuperClassLoc; }
/// 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 InternalInterface; }
void setImplicitInterfaceDecl(bool val) { InternalInterface = val; }
/// 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);
// 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 classof(const ObjCInterfaceDecl *D) { return true; }
static bool classofKind(Kind K) { return K == ObjCInterface; }
friend class ASTDeclReader;
friend class ASTDeclWriter;
};
/// 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 {
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=*/false),
NextIvar(0), 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 = NULL,
bool synthesized=false);
/// \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; }
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const ObjCIvarDecl *D) { return true; }
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;
};
/// ObjCAtDefsFieldDecl - Represents a field declaration created by an
/// @defs(...).
class ObjCAtDefsFieldDecl : public FieldDecl {
private:
ObjCAtDefsFieldDecl(DeclContext *DC, SourceLocation StartLoc,
SourceLocation IdLoc, IdentifierInfo *Id,
QualType T, Expr *BW)
: FieldDecl(ObjCAtDefsField, DC, StartLoc, IdLoc, Id, T,
/*TInfo=*/0, // FIXME: Do ObjCAtDefs have declarators ?
BW, /*Mutable=*/false, /*HasInit=*/false) {}
public:
static ObjCAtDefsFieldDecl *Create(ASTContext &C, DeclContext *DC,
SourceLocation StartLoc,
SourceLocation IdLoc, IdentifierInfo *Id,
QualType T, Expr *BW);
// Implement isa/cast/dyncast/etc.
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const ObjCAtDefsFieldDecl *D) { return true; }
static bool classofKind(Kind K) { return K == ObjCAtDefsField; }
};
/// ObjCProtocolDecl - Represents a protocol declaration. ObjC 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:
///
/// @protocol NSDraggingInfo <refproto1, refproto2>
/// - (NSWindow *)draggingDestinationWindow;
/// - (NSImage *)draggedImage;
/// @end
///
/// This says that NSDraggingInfo requires two methods and requires everything
/// that the two "referenced protocols" 'refproto1' and 'refproto2' require as
/// well.
///
/// @interface ImplementsNSDraggingInfo : NSObject <NSDraggingInfo>
/// @end
///
/// 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 {
/// Referenced protocols
ObjCProtocolList ReferencedProtocols;
bool isForwardProtoDecl; // declared with @protocol.
SourceLocation EndLoc; // marks the '>' or identifier.
ObjCProtocolDecl(DeclContext *DC, IdentifierInfo *Id,
SourceLocation nameLoc, SourceLocation atStartLoc)
: ObjCContainerDecl(ObjCProtocol, DC, Id, nameLoc, atStartLoc),
isForwardProtoDecl(true) {
}
public:
static ObjCProtocolDecl *Create(ASTContext &C, DeclContext *DC,
IdentifierInfo *Id,
SourceLocation nameLoc,
SourceLocation atStartLoc);
const ObjCProtocolList &getReferencedProtocols() const {
return ReferencedProtocols;
}
typedef ObjCProtocolList::iterator protocol_iterator;
protocol_iterator protocol_begin() const {return ReferencedProtocols.begin();}
protocol_iterator protocol_end() const { return ReferencedProtocols.end(); }
typedef ObjCProtocolList::loc_iterator protocol_loc_iterator;
protocol_loc_iterator protocol_loc_begin() const {
return ReferencedProtocols.loc_begin();
}
protocol_loc_iterator protocol_loc_end() const {
return ReferencedProtocols.loc_end();
}
unsigned protocol_size() const { return ReferencedProtocols.size(); }
/// 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);
}
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*/);
}
bool isForwardDecl() const { return isForwardProtoDecl; }
void setForwardDecl(bool val) { isForwardProtoDecl = val; }
// Location information, modeled after the Stmt API.
SourceLocation getLocStart() const { return getAtStartLoc(); } // '@'protocol
SourceLocation getLocEnd() const { return EndLoc; }
void setLocEnd(SourceLocation LE) { EndLoc = LE; }
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const ObjCProtocolDecl *D) { return true; }
static bool classofKind(Kind K) { return K == ObjCProtocol; }
};
/// ObjCClassDecl - Specifies a list of forward class declarations. For example:
///
/// @class NSCursor, NSImage, NSPasteboard, NSWindow;
///
class ObjCClassDecl : public Decl {
public:
class ObjCClassRef {
ObjCInterfaceDecl *ID;
SourceLocation L;
public:
ObjCClassRef(ObjCInterfaceDecl *d, SourceLocation l) : ID(d), L(l) {}
SourceLocation getLocation() const { return L; }
ObjCInterfaceDecl *getInterface() const { return ID; }
};
private:
ObjCClassRef *ForwardDecl;
ObjCClassDecl(DeclContext *DC, SourceLocation L,
ObjCInterfaceDecl *const Elt, const SourceLocation Loc,
ASTContext &C);
public:
static ObjCClassDecl *Create(ASTContext &C, DeclContext *DC, SourceLocation L,
ObjCInterfaceDecl *const Elt = 0,
const SourceLocation Locs = SourceLocation());
ObjCInterfaceDecl *getForwardInterfaceDecl() { return ForwardDecl->getInterface(); }
ObjCClassRef *getForwardDecl() { return ForwardDecl; }
void setClass(ASTContext &C, ObjCInterfaceDecl*const Cls,
const SourceLocation Locs);
virtual SourceRange getSourceRange() const;
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const ObjCClassDecl *D) { return true; }
static bool classofKind(Kind K) { return K == ObjCClass; }
};
/// ObjCForwardProtocolDecl - Specifies a list of forward protocol declarations.
/// For example:
///
/// @protocol NSTextInput, NSChangeSpelling, NSDraggingInfo;
///
class ObjCForwardProtocolDecl : public Decl {
ObjCProtocolList ReferencedProtocols;
ObjCForwardProtocolDecl(DeclContext *DC, SourceLocation L,
ObjCProtocolDecl *const *Elts, unsigned nElts,
const SourceLocation *Locs, ASTContext &C);
public:
static ObjCForwardProtocolDecl *Create(ASTContext &C, DeclContext *DC,
SourceLocation L,
ObjCProtocolDecl *const *Elts,
unsigned Num,
const SourceLocation *Locs);
static ObjCForwardProtocolDecl *Create(ASTContext &C, DeclContext *DC,
SourceLocation L) {
return Create(C, DC, L, 0, 0, 0);
}
typedef ObjCProtocolList::iterator protocol_iterator;
protocol_iterator protocol_begin() const {return ReferencedProtocols.begin();}
protocol_iterator protocol_end() const { return ReferencedProtocols.end(); }
typedef ObjCProtocolList::loc_iterator protocol_loc_iterator;
protocol_loc_iterator protocol_loc_begin() const {
return ReferencedProtocols.loc_begin();
}
protocol_loc_iterator protocol_loc_end() const {
return ReferencedProtocols.loc_end();
}
unsigned protocol_size() const { return ReferencedProtocols.size(); }
/// setProtocolList - Set the list of forward protocols.
void setProtocolList(ObjCProtocolDecl *const*List, unsigned Num,
const SourceLocation *Locs, ASTContext &C) {
ReferencedProtocols.set(List, Num, Locs, C);
}
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const ObjCForwardProtocolDecl *D) { return true; }
static bool classofKind(Kind K) { return K == ObjCForwardProtocol; }
};
/// 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 {
/// Interface belonging to this category
ObjCInterfaceDecl *ClassInterface;
/// 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;
/// true of class extension has at least one bitfield ivar.
bool HasSynthBitfield : 1;
/// \brief The location of the category name in this declaration.
SourceLocation CategoryNameLoc;
ObjCCategoryDecl(DeclContext *DC, SourceLocation AtLoc,
SourceLocation ClassNameLoc, SourceLocation CategoryNameLoc,
IdentifierInfo *Id, ObjCInterfaceDecl *IDecl)
: ObjCContainerDecl(ObjCCategory, DC, Id, ClassNameLoc, AtLoc),
ClassInterface(IDecl), NextClassCategory(0), HasSynthBitfield(false),
CategoryNameLoc(CategoryNameLoc) {
}
public:
static ObjCCategoryDecl *Create(ASTContext &C, DeclContext *DC,
SourceLocation AtLoc,
SourceLocation ClassNameLoc,
SourceLocation CategoryNameLoc,
IdentifierInfo *Id,
ObjCInterfaceDecl *IDecl);
static ObjCCategoryDecl *Create(ASTContext &C, EmptyShell Empty);
ObjCInterfaceDecl *getClassInterface() { return ClassInterface; }
const ObjCInterfaceDecl *getClassInterface() const { return ClassInterface; }
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;
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;
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; }
bool IsClassExtension() const { return getIdentifier() == 0; }
const ObjCCategoryDecl *getNextClassExtension() const;
bool hasSynthBitfield() const { return HasSynthBitfield; }
void setHasSynthBitfield (bool val) { HasSynthBitfield = val; }
typedef specific_decl_iterator<ObjCIvarDecl> ivar_iterator;
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; }
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const ObjCCategoryDecl *D) { return true; }
static bool classofKind(Kind K) { return K == ObjCCategory; }
friend class ASTDeclReader;
friend class ASTDeclWriter;
};
class ObjCImplDecl : public ObjCContainerDecl {
/// 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() : 0,
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;
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 classof(const ObjCImplDecl *D) { return true; }
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 {
// Category name
IdentifierInfo *Id;
ObjCCategoryImplDecl(DeclContext *DC, IdentifierInfo *Id,
ObjCInterfaceDecl *classInterface,
SourceLocation nameLoc, SourceLocation atStartLoc)
: ObjCImplDecl(ObjCCategoryImpl, DC, classInterface, nameLoc, atStartLoc),
Id(Id) {}
public:
static ObjCCategoryImplDecl *Create(ASTContext &C, DeclContext *DC,
IdentifierInfo *Id,
ObjCInterfaceDecl *classInterface,
SourceLocation nameLoc,
SourceLocation atStartLoc);
/// getIdentifier - Get the identifier that names the category
/// interface associated with this implementation.
/// FIXME: This is a bad API, we are overriding the NamedDecl::getIdentifier()
/// to mean something different. 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;
/// 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 overriding the NamedDecl::getName, to mean
// something different.
StringRef getName() const {
return Id ? Id->getNameStart() : "";
}
/// getNameAsCString - Get the name of identifier for the class
/// interface associated with this implementation as a C string
/// (const char*).
//
// FIXME: Deprecated, move clients to getName().
const char *getNameAsCString() const {
return Id ? Id->getNameStart() : "";
}
/// @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 classof(const ObjCCategoryImplDecl *D) { return true; }
static bool classofKind(Kind K) { return K == ObjCCategoryImpl;}
};
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
///
/// Typically, instance variables are specified in the class interface,
/// *not* in the implementation. Nevertheless (for legacy reasons), we
/// allow instance variables to be specified in the implementation. When
/// specified, they need to be *identical* to the interface.
///
class ObjCImplementationDecl : public ObjCImplDecl {
/// Implementation Class's super class.
ObjCInterfaceDecl *SuperClass;
/// Support for ivar initialization.
/// IvarInitializers - The arguments used to initialize the ivars
CXXCtorInitializer **IvarInitializers;
unsigned NumIvarInitializers;
/// true if class has a .cxx_[construct,destruct] method.
bool HasCXXStructors : 1;
/// true of class extension has at least one bitfield ivar.
bool HasSynthBitfield : 1;
ObjCImplementationDecl(DeclContext *DC,
ObjCInterfaceDecl *classInterface,
ObjCInterfaceDecl *superDecl,
SourceLocation nameLoc, SourceLocation atStartLoc)
: ObjCImplDecl(ObjCImplementation, DC, classInterface, nameLoc, atStartLoc),
SuperClass(superDecl), IvarInitializers(0), NumIvarInitializers(0),
HasCXXStructors(false), HasSynthBitfield(false) {}
public:
static ObjCImplementationDecl *Create(ASTContext &C, DeclContext *DC,
ObjCInterfaceDecl *classInterface,
ObjCInterfaceDecl *superDecl,
SourceLocation nameLoc,
SourceLocation atStartLoc);
/// 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;
/// init_begin() - Retrieve an iterator to the first initializer.
init_iterator init_begin() { return IvarInitializers; }
/// begin() - Retrieve an iterator to the first initializer.
init_const_iterator init_begin() const { return IvarInitializers; }
/// init_end() - Retrieve an iterator past the last initializer.
init_iterator init_end() {
return IvarInitializers + NumIvarInitializers;
}
/// end() - Retrieve an iterator past the last initializer.
init_const_iterator init_end() const {
return IvarInitializers + 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);
bool hasCXXStructors() const { return HasCXXStructors; }
void setHasCXXStructors(bool val) { HasCXXStructors = val; }
bool hasSynthBitfield() const { return HasSynthBitfield; }
void setHasSynthBitfield (bool val) { HasSynthBitfield = 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 overriding the NamedDecl::getName, to mean
// something different.
StringRef getName() const {
assert(getIdentifier() && "Name is not a simple identifier");
return getIdentifier()->getName();
}
/// getNameAsCString - Get the name of identifier for the class
/// interface associated with this implementation as a C string
/// (const char*).
//
// FIXME: Move to StringRef API.
const char *getNameAsCString() const {
return getName().data();
}
/// @brief Get the name of the class associated with this interface.
//
// FIXME: Move to StringRef API.
std::string getNameAsString() const {
return getName();
}
const ObjCInterfaceDecl *getSuperClass() const { return SuperClass; }
ObjCInterfaceDecl *getSuperClass() { return SuperClass; }
void setSuperClass(ObjCInterfaceDecl * superCls) { SuperClass = superCls; }
typedef specific_decl_iterator<ObjCIvarDecl> ivar_iterator;
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 classof(const ObjCImplementationDecl *D) { return true; }
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 {
/// 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);
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 classof(const ObjCCompatibleAliasDecl *D) { return true; }
static bool classofKind(Kind K) { return K == ObjCCompatibleAlias; }
};
/// ObjCPropertyDecl - Represents one property declaration in an interface.
/// For example:
/// @property (assign, readwrite) int MyProperty;
///
class ObjCPropertyDecl : public NamedDecl {
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
// Adding a property should change NumPropertyAttrsBits
};
enum {
/// \brief Number of bits fitting all the property attributes.
NumPropertyAttrsBits = 12
};
enum SetterKind { Assign, Retain, Copy, Weak };
enum PropertyControl { None, Required, Optional };
private:
SourceLocation AtLoc; // location of @property
TypeSourceInfo *DeclType;
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, TypeSourceInfo *T)
: NamedDecl(ObjCProperty, DC, L, Id), AtLoc(AtLocation), DeclType(T),
PropertyAttributes(OBJC_PR_noattr),
PropertyAttributesAsWritten(OBJC_PR_noattr),
PropertyImplementation(None),
GetterName(Selector()),
SetterName(Selector()),
GetterMethodDecl(0), SetterMethodDecl(0) , PropertyIvarDecl(0) {}
public:
static ObjCPropertyDecl *Create(ASTContext &C, DeclContext *DC,
SourceLocation L,
IdentifierInfo *Id, SourceLocation AtLocation,
TypeSourceInfo *T,
PropertyControl propControl = None);
SourceLocation getAtLoc() const { return AtLoc; }
void setAtLoc(SourceLocation L) { AtLoc = L; }
TypeSourceInfo *getTypeSourceInfo() const { return DeclType; }
QualType getType() const { return DeclType->getType(); }
void setType(TypeSourceInfo *T) { DeclType = T; }
PropertyAttributeKind getPropertyAttributes() const {
return PropertyAttributeKind(PropertyAttributes);
}
void setPropertyAttributes(PropertyAttributeKind PRVal) {
PropertyAttributes |= PRVal;
}
PropertyAttributeKind getPropertyAttributesAsWritten() const {
return PropertyAttributeKind(PropertyAttributesAsWritten);
}
bool hasWrittenStorageAttribute() const {
return PropertyAttributesAsWritten & (OBJC_PR_assign | OBJC_PR_copy |
OBJC_PR_unsafe_unretained | OBJC_PR_retain | OBJC_PR_strong |
OBJC_PR_weak);
}
void setPropertyAttributesAsWritten(PropertyAttributeKind PRVal) {
PropertyAttributesAsWritten = PRVal;
}
void makeitReadWriteAttribute(void) {
PropertyAttributes &= ~OBJC_PR_readonly;
PropertyAttributes |= OBJC_PR_readwrite;
}
// 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;
}
virtual SourceRange getSourceRange() const {
return SourceRange(AtLoc, getLocation());
}
/// Lookup a property by name in the specified DeclContext.
static ObjCPropertyDecl *findPropertyDecl(const DeclContext *DC,
IdentifierInfo *propertyID);
static bool classof(const Decl *D) { return classofKind(D->getKind()); }
static bool classof(const ObjCPropertyDecl *D) { return true; }
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(0), SetterCXXAssignment(0) {
assert (PK == Dynamic || PropertyIvarDecl);
}
public:
static ObjCPropertyImplDecl *Create(ASTContext &C, DeclContext *DC,
SourceLocation atLoc, SourceLocation L,
ObjCPropertyDecl *property,
Kind PK,
ObjCIvarDecl *ivarDecl,
SourceLocation ivarLoc);
virtual SourceRange getSourceRange() const;
SourceLocation getLocStart() const { 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;
}
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 classof(const ObjCPropertyImplDecl *D) { return true; }
static bool classofKind(Decl::Kind K) { return K == ObjCPropertyImpl; }
friend class ASTDeclReader;
};
} // end namespace clang
#endif
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