ClassDirective.hpp

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/******************************************************************************/
/* REXX Kernel                                          ClassDirective.hpp    */
/*                                                                            */
/* Primitive Abstract Directive Class Definitions                             */
/*                                                                            */
/******************************************************************************/
#ifndef Included_ClassDirective
#define Included_ClassDirective
 
#include "RexxDirective.hpp"
#include "FlagSet.hpp"
 
class RexxDirectory;
class RexxClass;
 
class ClassDirective : public RexxDirective
{
 friend class RexxSource;
 public:
           void *operator new(size_t);
    inline void *operator new(size_t size, void *objectPtr) { return objectPtr; }
    inline void  operator delete(void *) { }
    inline void  operator delete(void *, void *) { }
 
    ClassDirective(RexxString *, RexxString *, RexxClause *);
    inline ClassDirective(RESTORETYPE restoreType) { ; };
 
    void live(size_t);
    void liveGeneral(int reason);
    void flatten(RexxEnvelope *);
 
    typedef enum
    {
       PUBLIC,                  // class has public scope
       MIXIN,                   // this is a mixin class
       ABSTRACT,                // this is an abstract class
    } ClassProperties;
 
 
    inline RexxString *getName() { return publicName; }
    RexxClass *install(RexxSource *source, RexxActivation *activation);
 
    void addDependencies(RexxDirectory *class_directives);
    void checkDependency(RexxString *name, RexxDirectory *class_directives);
    bool dependenciesResolved();
    void removeDependency(RexxString *name);
 
    inline RexxString *getMetaClass() { return metaclassName; }
    inline void setMetaClass(RexxString *m) { OrefSet(this, this->metaclassName, m); }
    inline RexxString *getSubClass() { return subclassName; }
    inline void setSubClass(RexxString *m) { OrefSet(this, this->subclassName, m); }
    inline void setMixinClass(RexxString *m) { OrefSet(this, this->subclassName, m); classFlags[MIXIN] = true; }
    inline bool isMixinClass() { return classFlags[MIXIN]; }
    inline void setPublic() { classFlags[PUBLIC] = true; }
    inline bool isPublic() { return classFlags[PUBLIC]; }
    inline void setAbstract() { classFlags[ABSTRACT] = true; }
    inline bool isAbstract() { return classFlags[ABSTRACT]; }
    void addInherits(RexxString *name);
    void addMethod(RexxString *name, RexxMethod *method, bool classMethod);
    void addConstantMethod(RexxString *name, RexxMethod *method);
    bool checkDuplicateMethod(RexxString *name, bool classMethod);
 
 
protected:
 
    RexxTable *getClassMethods();
    RexxTable *getInstanceMethods();
 
 
    RexxString *publicName;         // the published name of the class
    RexxString *idName;             // the internal ID name
    RexxString *metaclassName;      // name of the class meta class
    RexxString *subclassName;       // the class used for the subclassing operation.
    RexxList   *inheritsClasses;    // the names of inherited classes
    RexxTable  *instanceMethods;    // the methods attached to this class
    RexxTable  *classMethods;       // the set of class methods
    RexxDirectory *dependencies;    // in-package dependencies
    FlagSet<ClassProperties, 32> classFlags; // class attributes
};
 
#endif