From: "Charles E. Thornton" <ruby-core@...>
Date: 2005-10-14T14:02:59+09:00
Subject: Wilderness: Converting for Object Address ot Object ID

I have written several functions to dump Object Trees.
For Example the object tree for rb_cObject is

OBJECT ====> Object Address ------>0x00f6fddd20  rb_cObject
OBJECT ====> Object Address ------>0x00f6fddd20  CLASS
RBASIC ====> flags --------------->0x0000000003
RBASIC ====> klass --------------->0x00f6fddce4  metaclass_object
RCLASS ====> iv_tbl -------------->0x000973bba0
RCLASS ====> m_tbl --------------->0x000973bad8
RCLASS ====> super --------------->0x00f6fddc94

OBJECT ====> Object Address ------>0x00f6fddc94  ICLASS
RBASIC ====> flags --------------->0x0000000004
RBASIC ====> klass --------------->0x00f6fddca8
RCLASS ====> iv_tbl -------------->0x000973c128
RCLASS ====> m_tbl --------------->0x000973c0e0
RCLASS ====> super --------------->0x0000000000

OBJECT ====> Object Address ------>0x00f6fddca8  MODULE
RBASIC ====> flags --------------->0x0000000005
RBASIC ====> klass --------------->0x00f6fdd528
RCLASS ====> iv_tbl -------------->0x000973c128
RCLASS ====> m_tbl --------------->0x000973c0e0
RCLASS ====> super --------------->0x0000000000

OBJECT ====> Object Address ------>0x00f6fdd528  METACLASS
RBASIC ====> flags --------------->0x0000000803  SINGLETON FLAG
RBASIC ====> klass --------------->0x00f6fddcd0  metaclass_module
RCLASS ====> iv_tbl -------------->0x000973d2d8
RCLASS ====> m_tbl --------------->0x000973d290
RCLASS ====> super --------------->0x00f6fddd0c  rb_cModule

Now since I have a list of Base Reference Objects  I can convert
to the internal name of the object  -- Such as  0x00f6fddd20 ==> rb_cObject

However, What I need is a way to convert from a reference addess (ie. 
0x00f6fddd20)
to the ID and/or Symbol Name associated with that Object Address (if 
any!) ! 

Is there a way to do this EITHER at Ruby Level or 'C' Level ?