#ifndef HANDLES_HPP
#define HANDLES_HPP

class HiObject;
class OopClosure;

class Handle {
friend class HandleMark;
private:
 HiObject* _value;
 Handle* _next;

public:
 Handle(HiObject* t);
 ~Handle();

 void oops_do(OopClosure* f);
 HiObject* operator ->();
 HiObject* operator ()() { return _value; }
 HiObject* resolve();
};

class HandleMark {
private:
 static HandleMark* instance;
 Handle* _head;

public:
 HandleMark();

 static HandleMark* get_instance();
 void oops_do(OopClosure* f);
 Handle* head() { return _head; }
 void set_head(Handle* x) { _head = x; }
};

#endif