>>>>> "Y" == Yukihiro Matsumoto <matz / netlab.co.jp> writes:

Y> No.  And none for contents of Arrays neither.
Y> Should I prepare hook for them?  I mean for Arrays, not local
Y> variables, which cannot be hooked I think.

 No, I don't think because this was just an example. I can store Hash or
... (any objects accepted by Marshal). Perhaps this will give too many
modifications to ruby.

Y> To archive your wish, one idea is to make BDB to save original
Y> references in marshaling mode, then verify the values on close.
Y> Just for an idea.

 Well my problem is that I want also write :


   db[[1, 2]].push(3)
   db.each do |x, y|
# etc
   end

 i.e. without the db.close
 
Y> By the way,

Y> |require "bdb"
Y> |db = BDB::Btree.open("aa", nil, BDB::CREATE, {"marshal" => true})

Y> did you make bdb extension?  I've tried but not yet reached to the goal.
Y> I really want to see it.  Could you plan to release it publicly?

 Not finished, missing :
  1) lock, log
  2) actually I work with 3.x and I plan to make a compatible version for
     2.x
  3) test
  4) no documentation actually

 I can put this temporary version on an anonymous server if you want to
 look at it, but there are many bugs :-) :-) :-)

 If all is OK, it will be public.


Guy Decoux

p.s.: I've also another a very small extension to add PL/ruby
(i.e. procedural language for PostgreSQL). If somebody want to test it, he
can contact me by e-mail. Documentation is at :

  http://moulon.inra.fr/tmp/plruby.html