blockKlass.hpp

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/* Copyright 1994, 1995 LongView Technologies L.L.C. $Revision: 1.27 $ */
/* Copyright (c) 2006, Sun Microsystems, Inc.
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 
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class blockClosureKlass: public memOopKlass {
 public:
  // testers
  bool oop_is_block()                const { return true;  }

  // allocation properties
  bool can_inline_allocation()       const { return false; }

  // reflective properties
  bool can_have_instance_variables() const { return false; }
  bool can_be_subclassed()           const { return false; }

  // arity
  int number_of_arguments() const;

  // allocation
  oop allocateObject();
  static klassOop blockKlassFor(int numberOfArguments);

  // creates invocation
  klassOop create_subclass(mixinOop mixin, Format format);

  // Format
  Format format() { return blockClosure_klass; }

  // scavenge
  int  oop_scavenge_contents(oop obj);
  int  oop_scavenge_tenured_contents(oop obj);
  void oop_follow_contents(oop obj);

  // iterators
  void oop_oop_iterate(oop obj, OopClosure* blk);
  void oop_layout_iterate(oop obj, ObjectLayoutClosure* blk);

  // Sizing
  int oop_header_size() const { return blockClosureOopDesc::header_size(); }

  // memory operations
  bool oop_verify(oop obj);

  // printing operations
  void oop_print_value_on(oop obj, outputStream* st);
  char* name() const { return "block"; }

  // class creation
  friend void set_blockClosureKlass_vtbl(Klass* k);
};

class contextKlass: public memOopKlass {
 public:
  // testers
  bool oop_is_context()              const { return true;  }

  // allocation properties
  bool can_inline_allocation()       const { return false; }

  // reflective properties
  bool can_have_instance_variables() const { return false; }
  bool can_be_subclassed()           const { return false; }

  // allocation
  oop allocateObjectSize(int num_of_temps);
  static contextOop allocate_context(int num_of_temps);

  // creates invocation
  klassOop create_subclass(mixinOop mixin, Format format);

  // Format
  Format format() { return context_klass; }

  // scavenge
  int  oop_scavenge_contents(oop obj);
  int  oop_scavenge_tenured_contents(oop obj);
  void oop_follow_contents(oop obj);

  // iterators
  void oop_oop_iterate(oop obj, OopClosure* blk);
  void oop_layout_iterate(oop obj, ObjectLayoutClosure* blk);

  // sizing
  int oop_header_size() const { return contextOopDesc::header_size(); }
  int oop_size(oop obj) const;

  // printing support
  void oop_print_value_on(oop obj, outputStream* st);
  void oop_print_on(oop obj, outputStream* st);
  char* name() const { return "context"; }

  // class creation
  friend void set_contextKlass_vtbl(Klass* k);
};

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