Refactored Definition and derived classes such that they are abstract interfaces

1 files changed, 279 insertions, 324 deletions

diff --git a/src/memberdef.h b/src/memberdef.h
index d96b9c9..555935a 100644
--- a/src/memberdef.h
+++ b/src/memberdef.h
@@ -35,424 +35,379 @@ class OutputList;
 class GroupDef;
 class QTextStream;
 class ArgumentList;
-class MemberDefImpl;
 class QStrList;
 struct TagInfo;
 
 /** A model of a class/file/namespace member symbol. */
-class MemberDef : public Definition
+class MemberDef : virtual public Definition
 {
   public:
-    
-    MemberDef(const char *defFileName,int defLine,int defColumn,
-              const char *type,const char *name,const char *args,
-              const char *excp,Protection prot,Specifier virt,bool stat,
-              Relationship related,MemberType t,const ArgumentList *tal,
-              const ArgumentList *al,const char *metaData);
-   ~MemberDef(); 
-    DefType definitionType() const        { return TypeMember; }
+    virtual ~MemberDef() {}
+    virtual DefType definitionType() const = 0;
     // move this member into a different scope
-    MemberDef *deepCopy() const;
-    void moveTo(Definition *);
+    virtual MemberDef *deepCopy() const =0;
+    virtual void moveTo(Definition *) = 0;
     
     //-----------------------------------------------------------------------------------
     // ----  getters -----
     //-----------------------------------------------------------------------------------
 
     // link id
-    QCString getOutputFileBase() const;
-    QCString getReference() const;
-    QCString anchor() const;
-
-    const char *declaration() const;
-    const char *definition() const;
-    const char *typeString() const;
-    const char *argsString() const;
-    const char *excpString() const;
-    const char *bitfieldString() const;
-    const char *extraTypeChars() const;
-    const QCString &initializer() const;
-    int initializerLines() const;
-    uint64 getMemberSpecifiers() const;
-    MemberList *getSectionList(Definition *d) const;
-    QCString    displayDefinition() const;
+    virtual QCString getOutputFileBase() const = 0;
+    virtual QCString getReference() const = 0;
+    virtual QCString anchor() const = 0;
+
+    virtual const char *declaration() const = 0;
+    virtual const char *definition() const = 0;
+    virtual const char *typeString() const = 0;
+    virtual const char *argsString() const = 0;
+    virtual const char *excpString() const = 0;
+    virtual const char *bitfieldString() const = 0;
+    virtual const char *extraTypeChars() const = 0;
+    virtual const QCString &initializer() const = 0;
+    virtual int initializerLines() const = 0;
+    virtual uint64 getMemberSpecifiers() const = 0;
+    virtual MemberList *getSectionList(Definition *d) const = 0;
+    virtual QCString    displayDefinition() const = 0;
 
     // scope query members
-    ClassDef *getClassDef() const;
-    FileDef  *getFileDef() const;
-    NamespaceDef* getNamespaceDef() const;
-    ClassDef *accessorClass() const;
+    virtual ClassDef *getClassDef() const = 0;
+    virtual FileDef  *getFileDef() const = 0;
+    virtual NamespaceDef* getNamespaceDef() const = 0;
+    virtual ClassDef *accessorClass() const = 0;
 
     // grabbing the property read/write accessor names
-    const char *getReadAccessor() const;
-    const char *getWriteAccessor() const;
+    virtual const char *getReadAccessor() const = 0;
+    virtual const char *getWriteAccessor() const = 0;
     
     // querying the grouping definition
-    GroupDef *getGroupDef() const;
-    Grouping::GroupPri_t getGroupPri() const;
-    const char *getGroupFileName() const;
-    int getGroupStartLine() const;
-    bool getGroupHasDocs() const;
-    QCString qualifiedName() const;
-    QCString objCMethodName(bool localLink,bool showStatic) const; 
+    virtual GroupDef *getGroupDef() const = 0;
+    virtual Grouping::GroupPri_t getGroupPri() const = 0;
+    virtual const char *getGroupFileName() const = 0;
+    virtual int getGroupStartLine() const = 0;
+    virtual bool getGroupHasDocs() const = 0;
+    virtual QCString qualifiedName() const = 0;
+    virtual QCString objCMethodName(bool localLink,bool showStatic) const = 0; 
 
     // direct kind info 
-    Protection protection() const;
-    Specifier virtualness(int count=0) const;
-    MemberType memberType() const;
-    QCString   memberTypeName() const;
+    virtual Protection protection() const = 0;
+    virtual Specifier virtualness(int count=0) const = 0;
+    virtual MemberType memberType() const = 0;
+    virtual QCString   memberTypeName() const = 0;
 
     // getter methods
-    bool isSignal() const;
-    bool isSlot() const;
-    bool isVariable() const;
-    bool isEnumerate() const;
-    bool isEnumValue() const;
-    bool isTypedef() const;
-    bool isSequence() const;
-    bool isDictionary() const;
-    bool isFunction() const;
-    bool isFunctionPtr() const;
-    bool isDefine() const;
-    bool isFriend() const;
-    bool isDCOP() const;
-    bool isProperty() const;
-    bool isEvent() const;
-    bool isRelated() const;
-    bool isForeign() const;
-    bool isStatic() const;
-    bool isInline() const;
-    bool isExplicit() const;
-    bool isMutable() const;
-    bool isGettable() const;
-    bool isPrivateGettable() const;
-    bool isProtectedGettable() const;
-    bool isSettable() const;
-    bool isPrivateSettable() const;
-    bool isProtectedSettable() const;
-    bool isReadable() const;
-    bool isWritable() const;
-    bool isAddable() const;
-    bool isRemovable() const;
-    bool isRaisable() const;
-    bool isFinal() const;
-    bool isAbstract() const;
-    bool isOverride() const;
-    bool isInitonly() const;
-    bool isOptional() const;
-    bool isRequired() const;
-    bool isNonAtomic() const;
-    bool isCopy() const;
-    bool isAssign() const;
-    bool isRetain() const;
-    bool isWeak() const;
-    bool isStrong() const;
-    bool isUnretained() const;
-    bool isNew() const;
-    bool isSealed() const;
-    bool isImplementation() const;
-    bool isExternal() const;
-    bool isAlias() const;
-    bool isDefault() const;
-    bool isDelete() const;
-    bool isNoExcept() const;
-    bool isAttribute() const; // UNO IDL attribute
-    bool isUNOProperty() const; // UNO IDL property
-    bool isReadonly() const;
-    bool isBound() const;
-    bool isConstrained() const;
-    bool isTransient() const;
-    bool isMaybeVoid() const;
-    bool isMaybeDefault() const;
-    bool isMaybeAmbiguous() const;
-    bool isPublished() const; // UNO IDL published
-    bool isTemplateSpecialization() const;
-    bool hasDocumentedParams() const;
-    bool hasDocumentedReturnType() const;
-    bool isObjCMethod() const;
-    bool isObjCProperty() const;
-    bool isConstructor() const;
-    bool isDestructor() const;
-    bool hasOneLineInitializer() const;
-    bool hasMultiLineInitializer() const;
-    bool protectionVisible() const;
-    bool showInCallGraph() const;
-    bool isStrongEnumValue() const;
-    bool livesInsideEnum() const;
-    bool isSliceLocal() const;
-    bool isConstExpr() const;
+    virtual bool isSignal() const = 0;
+    virtual bool isSlot() const = 0;
+    virtual bool isVariable() const = 0;
+    virtual bool isEnumerate() const = 0;
+    virtual bool isEnumValue() const = 0;
+    virtual bool isTypedef() const = 0;
+    virtual bool isSequence() const = 0;
+    virtual bool isDictionary() const = 0;
+    virtual bool isFunction() const = 0;
+    virtual bool isFunctionPtr() const = 0;
+    virtual bool isDefine() const = 0;
+    virtual bool isFriend() const = 0;
+    virtual bool isDCOP() const = 0;
+    virtual bool isProperty() const = 0;
+    virtual bool isEvent() const = 0;
+    virtual bool isRelated() const = 0;
+    virtual bool isForeign() const = 0;
+    virtual bool isStatic() const = 0;
+    virtual bool isInline() const = 0;
+    virtual bool isExplicit() const = 0;
+    virtual bool isMutable() const = 0;
+    virtual bool isGettable() const = 0;
+    virtual bool isPrivateGettable() const = 0;
+    virtual bool isProtectedGettable() const = 0;
+    virtual bool isSettable() const = 0;
+    virtual bool isPrivateSettable() const = 0;
+    virtual bool isProtectedSettable() const = 0;
+    virtual bool isReadable() const = 0;
+    virtual bool isWritable() const = 0;
+    virtual bool isAddable() const = 0;
+    virtual bool isRemovable() const = 0;
+    virtual bool isRaisable() const = 0;
+    virtual bool isFinal() const = 0;
+    virtual bool isAbstract() const = 0;
+    virtual bool isOverride() const = 0;
+    virtual bool isInitonly() const = 0;
+    virtual bool isOptional() const = 0;
+    virtual bool isRequired() const = 0;
+    virtual bool isNonAtomic() const = 0;
+    virtual bool isCopy() const = 0;
+    virtual bool isAssign() const = 0;
+    virtual bool isRetain() const = 0;
+    virtual bool isWeak() const = 0;
+    virtual bool isStrong() const = 0;
+    virtual bool isUnretained() const = 0;
+    virtual bool isNew() const = 0;
+    virtual bool isSealed() const = 0;
+    virtual bool isImplementation() const = 0;
+    virtual bool isExternal() const = 0;
+    virtual bool isAlias() const = 0;
+    virtual bool isDefault() const = 0;
+    virtual bool isDelete() const = 0;
+    virtual bool isNoExcept() const = 0;
+    virtual bool isAttribute() const = 0; // UNO IDL attribute
+    virtual bool isUNOProperty() const = 0; // UNO IDL property
+    virtual bool isReadonly() const = 0;
+    virtual bool isBound() const = 0;
+    virtual bool isConstrained() const = 0;
+    virtual bool isTransient() const = 0;
+    virtual bool isMaybeVoid() const = 0;
+    virtual bool isMaybeDefault() const = 0;
+    virtual bool isMaybeAmbiguous() const = 0;
+    virtual bool isPublished() const = 0; // UNO IDL published
+    virtual bool isTemplateSpecialization() const = 0;
+    virtual bool hasDocumentedParams() const = 0;
+    virtual bool hasDocumentedReturnType() const = 0;
+    virtual bool isObjCMethod() const = 0;
+    virtual bool isObjCProperty() const = 0;
+    virtual bool isConstructor() const = 0;
+    virtual bool isDestructor() const = 0;
+    virtual bool hasOneLineInitializer() const = 0;
+    virtual bool hasMultiLineInitializer() const = 0;
+    virtual bool showInCallGraph() const = 0;
+    virtual bool isStrongEnumValue() const = 0;
+    virtual bool livesInsideEnum() const = 0;
+    virtual bool isSliceLocal() const = 0;
+    virtual bool isConstExpr() const = 0;
 
     // derived getters
-    bool isFriendToHide() const;
-    bool isNotFriend() const;
-    bool isFunctionOrSignalSlot() const;
-    bool isRelatedOrFriend() const;
+    virtual bool isFriendToHide() const = 0;
+    virtual bool isNotFriend() const = 0;
+    virtual bool isFunctionOrSignalSlot() const = 0;
+    virtual bool isRelatedOrFriend() const = 0;
 
     // output info
-    bool isLinkableInProject() const;
-    bool isLinkable() const;
-    bool hasDocumentation() const;  // overrides hasDocumentation in definition.h
-    //bool hasUserDocumentation() const; // overrides hasUserDocumentation
-    bool isDeleted() const;
-    bool isBriefSectionVisible() const;
-    bool isDetailedSectionVisible(bool inGroup,bool inFile) const;
-    bool isDetailedSectionLinkable() const;
-    bool isFriendClass() const;
-    bool isDocumentedFriendClass() const;
-
-    MemberDef *reimplements() const;
-    MemberList *reimplementedBy() const;
-    bool isReimplementedBy(ClassDef *cd) const;
-
-    //int inbodyLine() const;
-    //QCString inbodyFile() const;
-    //const QCString &inbodyDocumentation() const;
-
-    ClassDef *relatedAlso() const;
-
-    bool hasDocumentedEnumValues() const;
-    MemberDef *getAnonymousEnumType() const;
-    bool isDocsForDefinition() const;
-    MemberDef *getEnumScope() const;
-    MemberList *enumFieldList() const;
-    void setEnumBaseType(const QCString &type);
-    QCString enumBaseType() const;
-
-    bool hasExamples();
-    ExampleSDict *getExamples() const;
-    bool isPrototype() const;
+    virtual bool isLinkableInProject() const = 0;
+    virtual bool isLinkable() const = 0;
+    virtual bool hasDocumentation() const = 0;  // overrides hasDocumentation in definition.h
+    //bool hasUserDocumentation() const = 0; // overrides hasUserDocumentation
+    virtual bool isDeleted() const = 0;
+    virtual bool isBriefSectionVisible() const = 0;
+    virtual bool isDetailedSectionVisible(bool inGroup,bool inFile) const = 0;
+    virtual bool isDetailedSectionLinkable() const = 0;
+    virtual bool isFriendClass() const = 0;
+    virtual bool isDocumentedFriendClass() const = 0;
+
+    virtual MemberDef *reimplements() const = 0;
+    virtual MemberList *reimplementedBy() const = 0;
+    virtual bool isReimplementedBy(ClassDef *cd) const = 0;
+
+    virtual ClassDef *relatedAlso() const = 0;
+
+    virtual bool hasDocumentedEnumValues() const = 0;
+    virtual MemberDef *getAnonymousEnumType() const = 0;
+    virtual bool isDocsForDefinition() const = 0;
+    virtual MemberDef *getEnumScope() const = 0;
+    virtual MemberList *enumFieldList() const = 0;
+    virtual void setEnumBaseType(const QCString &type) = 0;
+    virtual QCString enumBaseType() const = 0;
+
+    virtual bool hasExamples() = 0;
+    virtual ExampleSDict *getExamples() const = 0;
+    virtual bool isPrototype() const = 0;
 
     // argument related members
-    ArgumentList *argumentList() const;
-    ArgumentList *declArgumentList() const;
-    ArgumentList *templateArguments() const;
-    QList<ArgumentList> *definitionTemplateParameterLists() const;
+    virtual ArgumentList *argumentList() const = 0;
+    virtual ArgumentList *declArgumentList() const = 0;
+    virtual ArgumentList *templateArguments() const = 0;
+    virtual QList<ArgumentList> *definitionTemplateParameterLists() const = 0;
 
     // member group related members
-    int getMemberGroupId() const;
-    MemberGroup *getMemberGroup() const;
+    virtual int getMemberGroupId() const = 0;
+    virtual MemberGroup *getMemberGroup() const = 0;
 
-    bool fromAnonymousScope() const;
-    bool anonymousDeclShown() const;
-    MemberDef *fromAnonymousMember() const;
+    virtual bool fromAnonymousScope() const = 0;
+    virtual bool anonymousDeclShown() const = 0;
+    virtual MemberDef *fromAnonymousMember() const = 0;
 
     // callgraph related members
-    bool hasCallGraph() const;
-    bool hasCallerGraph() const;
-    bool visibleMemberGroup(bool hideNoHeader);
+    virtual bool hasCallGraph() const = 0;
+    virtual bool hasCallerGraph() const = 0;
+    virtual bool visibleMemberGroup(bool hideNoHeader) = 0;
     // refrenced related members
-    bool hasReferencesRelation() const;
-    bool hasReferencedByRelation() const;
+    virtual bool hasReferencesRelation() const = 0;
+    virtual bool hasReferencedByRelation() const = 0;
 
-    MemberDef *templateMaster() const;
-    QCString getScopeString() const;
-    ClassDef *getClassDefOfAnonymousType();
+    virtual MemberDef *templateMaster() const = 0;
+    virtual QCString getScopeString() const = 0;
+    virtual ClassDef *getClassDefOfAnonymousType() = 0;
 
     // cached typedef functions
-    bool isTypedefValCached() const;
-    ClassDef *getCachedTypedefVal() const;
-    QCString getCachedTypedefTemplSpec() const;
-    QCString getCachedResolvedTypedef() const;
+    virtual bool isTypedefValCached() const = 0;
+    virtual ClassDef *getCachedTypedefVal() const = 0;
+    virtual QCString getCachedTypedefTemplSpec() const = 0;
+    virtual QCString getCachedResolvedTypedef() const = 0;
 
-    MemberDef *memberDefinition() const;
-    MemberDef *memberDeclaration() const;
-    MemberDef *inheritsDocsFrom() const;
-    MemberDef *getGroupAlias() const;
+    virtual MemberDef *memberDefinition() const = 0;
+    virtual MemberDef *memberDeclaration() const = 0;
+    virtual MemberDef *inheritsDocsFrom() const = 0;
+    virtual MemberDef *getGroupAlias() const = 0;
 
-    ClassDef *category() const;
-    MemberDef *categoryRelation() const;
+    virtual ClassDef *category() const = 0;
+    virtual MemberDef *categoryRelation() const = 0;
 
-    QCString displayName(bool=TRUE) const;
-    QCString getDeclType() const;
-    void getLabels(QStrList &sl,Definition *container) const;
+    virtual QCString displayName(bool=TRUE) const = 0;
+    virtual QCString getDeclType() const = 0;
+    virtual void getLabels(QStrList &sl,Definition *container) const = 0;
 
-    const ArgumentList *typeConstraints() const;
+    virtual const ArgumentList *typeConstraints() const = 0;
 
     // overrules
-    QCString documentation() const;
-    QCString briefDescription(bool abbr=FALSE) const;
-    QCString fieldType() const;
-    bool isReference() const;
+    virtual QCString documentation() const = 0;
+    virtual QCString briefDescription(bool abbr=FALSE) const = 0;
+    virtual QCString fieldType() const = 0;
+    virtual bool isReference() const = 0;
 
-    QCString getDeclFileName() const;
-    int getDeclLine() const;
-    int getDeclColumn() const;
+    virtual QCString getDeclFileName() const = 0;
+    virtual int getDeclLine() const = 0;
+    virtual int getDeclColumn() const = 0;
 
     //-----------------------------------------------------------------------------------
     // ----  setters -----
     //-----------------------------------------------------------------------------------
 
     // set functions
-    void setMemberType(MemberType t);
-    void setDefinition(const char *d);
-    void setFileDef(FileDef *fd);
-    void setAnchor();
-    void setProtection(Protection p);
-    void setMemberSpecifiers(uint64 s);
-    void mergeMemberSpecifiers(uint64 s);
-    void setInitializer(const char *i);
-    void setBitfields(const char *s);
-    void setMaxInitLines(int lines);
-    void setMemberClass(ClassDef *cd);
-    void setSectionList(Definition *d,MemberList *sl);
-    void setGroupDef(GroupDef *gd,Grouping::GroupPri_t pri,
+    virtual void setMemberType(MemberType t) = 0;
+    virtual void setDefinition(const char *d) = 0;
+    virtual void setFileDef(FileDef *fd) = 0;
+    virtual void setAnchor() = 0;
+    virtual void setProtection(Protection p) = 0;
+    virtual void setMemberSpecifiers(uint64 s) = 0;
+    virtual void mergeMemberSpecifiers(uint64 s) = 0;
+    virtual void setInitializer(const char *i) = 0;
+    virtual void setBitfields(const char *s) = 0;
+    virtual void setMaxInitLines(int lines) = 0;
+    virtual void setMemberClass(ClassDef *cd) = 0;
+    virtual void setSectionList(Definition *d,MemberList *sl) = 0;
+    virtual void setGroupDef(GroupDef *gd,Grouping::GroupPri_t pri,
                      const QCString &fileName,int startLine,bool hasDocs,
-                     MemberDef *member=0);
-    void setReadAccessor(const char *r);
-    void setWriteAccessor(const char *w);
-    void setTemplateSpecialization(bool b);
+                     MemberDef *member=0) = 0;
+    virtual void setReadAccessor(const char *r) = 0;
+    virtual void setWriteAccessor(const char *w) = 0;
+    virtual void setTemplateSpecialization(bool b) = 0;
     
-    void makeRelated();
-    void makeForeign();
-    void setHasDocumentedParams(bool b);
-    void setHasDocumentedReturnType(bool b);
-    void setInheritsDocsFrom(MemberDef *md);
-    void setTagInfo(TagInfo *i);
-    void setArgsString(const char *as);
+    virtual void makeRelated() = 0;
+    virtual void makeForeign() = 0;
+    virtual void setHasDocumentedParams(bool b) = 0;
+    virtual void setHasDocumentedReturnType(bool b) = 0;
+    virtual void setInheritsDocsFrom(MemberDef *md) = 0;
+    virtual void setTagInfo(TagInfo *i) = 0;
+    virtual void setArgsString(const char *as) = 0;
 
     // relation to other members
-    void setReimplements(MemberDef *md);
-    void insertReimplementedBy(MemberDef *md);
-
-    // in-body documentation
-    //void setInbodyDocumentation(const char *docs,const char *file,int line);
+    virtual void setReimplements(MemberDef *md) = 0;
+    virtual void insertReimplementedBy(MemberDef *md) = 0;
 
-    void setRelatedAlso(ClassDef *cd);
+    virtual void setRelatedAlso(ClassDef *cd) = 0;
 
     // enumeration specific members
-    void insertEnumField(MemberDef *md);
-    void setEnumScope(MemberDef *md,bool livesInsideEnum=FALSE);
-    void setEnumClassScope(ClassDef *cd);
-    void setDocumentedEnumValues(bool value);
-    void setAnonymousEnumType(MemberDef *md);
+    virtual void insertEnumField(MemberDef *md) = 0;
+    virtual void setEnumScope(MemberDef *md,bool livesInsideEnum=FALSE) = 0;
+    virtual void setEnumClassScope(ClassDef *cd) = 0;
+    virtual void setDocumentedEnumValues(bool value) = 0;
+    virtual void setAnonymousEnumType(MemberDef *md) = 0;
 
     // example related members
-    bool addExample(const char *anchor,const char *name,const char *file);
+    virtual bool addExample(const char *anchor,const char *name,const char *file) = 0;
     
     // prototype related members
-    void setPrototype(bool p,const QCString &df,int line, int column);
-    void setExplicitExternal(bool b,const QCString &df,int line,int column);
-    void setDeclFile(const QCString &df,int line,int column);
+    virtual void setPrototype(bool p,const QCString &df,int line, int column) = 0;
+    virtual void setExplicitExternal(bool b,const QCString &df,int line,int column) = 0;
+    virtual void setDeclFile(const QCString &df,int line,int column) = 0;
 
     // argument related members
-    void setArgumentList(ArgumentList *al);
-    void setDeclArgumentList(ArgumentList *al);
-    void setDefinitionTemplateParameterLists(QList<ArgumentList> *lists);
-    void setTypeConstraints(ArgumentList *al);
-    void setType(const char *t);
-    void setAccessorType(ClassDef *cd,const char *t);
+    virtual void setArgumentList(ArgumentList *al) = 0;
+    virtual void setDeclArgumentList(ArgumentList *al) = 0;
+    virtual void setDefinitionTemplateParameterLists(QList<ArgumentList> *lists) = 0;
+    virtual void setTypeConstraints(ArgumentList *al) = 0;
+    virtual void setType(const char *t) = 0;
+    virtual void setAccessorType(ClassDef *cd,const char *t) = 0;
 
     // namespace related members
-    void setNamespace(NamespaceDef *nd);
+    virtual void setNamespace(NamespaceDef *nd) = 0;
 
     // member group related members
-    void setMemberGroup(MemberGroup *grp);
-    void setMemberGroupId(int id);
-    void makeImplementationDetail();
+    virtual void setMemberGroup(MemberGroup *grp) = 0;
+    virtual void setMemberGroupId(int id) = 0;
+    virtual void makeImplementationDetail() = 0;
 
     // anonymous scope members
-    void setFromAnonymousScope(bool b);
-    void setFromAnonymousMember(MemberDef *m);
+    virtual void setFromAnonymousScope(bool b) = 0;
+    virtual void setFromAnonymousMember(MemberDef *m) = 0;
 
-    void enableCallGraph(bool e);
-    void enableCallerGraph(bool e);
+    virtual void enableCallGraph(bool e) = 0;
+    virtual void enableCallerGraph(bool e) = 0;
 
-    void enableReferencedByRelation(bool e);
-    void enableReferencesRelation(bool e);
+    virtual void enableReferencedByRelation(bool e) = 0;
+    virtual void enableReferencesRelation(bool e) = 0;
 
-    void setTemplateMaster(MemberDef *mt);
-    void addListReference(Definition *d);
-    void setDocsForDefinition(bool b);
-    void setGroupAlias(MemberDef *md);
+    virtual void setTemplateMaster(MemberDef *mt) = 0;
+    virtual void addListReference(Definition *d) = 0;
+    virtual void setDocsForDefinition(bool b) = 0;
+    virtual void setGroupAlias(MemberDef *md) = 0;
 
-    void cacheTypedefVal(ClassDef *val,const QCString &templSpec,const QCString &resolvedType);
-    void invalidateTypedefValCache();
+    virtual void cacheTypedefVal(ClassDef *val,const QCString &templSpec,const QCString &resolvedType) = 0;
+    virtual void invalidateTypedefValCache() = 0;
 
-    void invalidateCachedArgumentTypes();
+    virtual void invalidateCachedArgumentTypes() = 0;
     
     // declaration <-> definition relation
-    void setMemberDefinition(MemberDef *md);
-    void setMemberDeclaration(MemberDef *md);
+    virtual void setMemberDefinition(MemberDef *md) = 0;
+    virtual void setMemberDeclaration(MemberDef *md) = 0;
         
-    void setAnonymousUsed();
-    void copyArgumentNames(MemberDef *bmd);
+    virtual void setAnonymousUsed() = 0;
+    virtual void copyArgumentNames(MemberDef *bmd) = 0;
 
-    void setCategory(ClassDef *);
-    void setCategoryRelation(MemberDef *);
+    virtual void setCategory(ClassDef *) = 0;
+    virtual void setCategoryRelation(MemberDef *) = 0;
 
-    void setDocumentation(const char *d,const char *docFile,int docLine,bool stripWhiteSpace=TRUE);
-    void setBriefDescription(const char *b,const char *briefFile,int briefLine);
-    void setInbodyDocumentation(const char *d,const char *inbodyFile,int inbodyLine);
+    virtual void setDocumentation(const char *d,const char *docFile,int docLine,bool stripWhiteSpace=TRUE) = 0;
+    virtual void setBriefDescription(const char *b,const char *briefFile,int briefLine) = 0;
+    virtual void setInbodyDocumentation(const char *d,const char *inbodyFile,int inbodyLine) = 0;
 
-    void setHidden(bool b);
+    virtual void setHidden(bool b) = 0;
 
     //-----------------------------------------------------------------------------------
     // --- actions ----
     //-----------------------------------------------------------------------------------
 
     // output generation
-    void writeDeclaration(OutputList &ol,
+    virtual void writeDeclaration(OutputList &ol,
                    ClassDef *cd,NamespaceDef *nd,FileDef *fd,GroupDef *gd,
-                   bool inGroup, ClassDef *inheritFrom=0,const char *inheritId=0); 
-    void writeDocumentation(MemberList *ml,int memCount,int memTotal,OutputList &ol,
+                   bool inGroup, ClassDef *inheritFrom=0,const char *inheritId=0) = 0; 
+    virtual void writeDocumentation(MemberList *ml,int memCount,int memTotal,OutputList &ol,
                             const char *scopeName,Definition *container,
                             bool inGroup,bool showEnumValues=FALSE,bool
-                            showInline=FALSE);
-    void writeMemberDocSimple(OutputList &ol,Definition *container);
-    void writeEnumDeclaration(OutputList &typeDecl,
-            ClassDef *cd,NamespaceDef *nd,FileDef *fd,GroupDef *gd);
-    void writeTagFile(FTextStream &);
-    void warnIfUndocumented();
-    void warnIfUndocumentedParams();
-    
-    MemberDef *createTemplateInstanceMember(ArgumentList *formalArgs,
-               ArgumentList *actualArgs);
-
-    void findSectionsInDocumentation();
-    
-    bool visited;
-   
-  protected:
-    void flushToDisk() const;
-    void loadFromDisk() const;
-  private:
-    void lock() const;
-    void unlock() const;
-    void saveToDisk() const;
-    void makeResident() const;
-    void _computeLinkableInProject();
-    void _computeIsConstructor();
-    void _computeIsDestructor();
-    void _writeGroupInclude(OutputList &ol,bool inGroup);
-    void _writeCallGraph(OutputList &ol);
-    void _writeCallerGraph(OutputList &ol);
-    void _writeReimplements(OutputList &ol);
-    void _writeReimplementedBy(OutputList &ol);
-    void _writeExamples(OutputList &ol);
-    void _writeTypeConstraints(OutputList &ol);
-    void _writeEnumValues(OutputList &ol,Definition *container,
-                          const QCString &cfname,const QCString &ciname,
-                          const QCString &cname);
-    void _writeCategoryRelation(OutputList &ol);
-    void _writeTagData(const DefType);
-    void _addToSearchIndex();
-
-    static int s_indentLevel;
-
-    // disable copying of member defs
-    MemberDef(const MemberDef &);
-    MemberDef &operator=(const MemberDef &);
-
-    void writeLink(OutputList &ol,
+                            showInline=FALSE) = 0;
+    virtual void writeMemberDocSimple(OutputList &ol,Definition *container) = 0;
+    virtual void writeEnumDeclaration(OutputList &typeDecl,
+            ClassDef *cd,NamespaceDef *nd,FileDef *fd,GroupDef *gd) = 0;
+    virtual void writeTagFile(FTextStream &) = 0;
+    virtual void warnIfUndocumented() = 0;
+    virtual void warnIfUndocumentedParams() = 0;
+
+    virtual MemberDef *createTemplateInstanceMember(ArgumentList *formalArgs,
+               ArgumentList *actualArgs) = 0;
+
+    virtual void findSectionsInDocumentation() = 0;
+    virtual void writeLink(OutputList &ol,
                    ClassDef *cd,NamespaceDef *nd,FileDef *fd,GroupDef *gd,
-                   bool onlyText=FALSE);
+                   bool onlyText=FALSE) = 0;
+    virtual void addToSearchIndex() = 0;
 
-    MemberDefImpl *m_impl;
-    uchar m_isLinkableCached;    // 0 = not cached, 1=FALSE, 2=TRUE
-    uchar m_isConstructorCached; // 0 = not cached, 1=FALSE, 2=TRUE
-    uchar m_isDestructorCached;  // 0 = not cached, 1=FALSE, 2=TRUE
 };
 
+/** Factory method to create a new instance of a MemberDef */
+MemberDef *createMemberDef(const char *defFileName,int defLine,int defColumn,
+              const char *type,const char *name,const char *args,
+              const char *excp,Protection prot,Specifier virt,bool stat,
+              Relationship related,MemberType t,const ArgumentList *tal,
+              const ArgumentList *al,const char *metaData);
+
 void combineDeclarationAndDefinition(MemberDef *mdec,MemberDef *mdef);
 
 #endif