From: Rick DeNatale <rick.denatale@...>
Date: 2008-01-11T07:09:04+09:00
Subject: Re: why does this code leak?

On 1/10/08, Robert Dober <robert.dober@gmail.com> wrote:

> As said above I would love to know a case where this is needed in
> which case one shall probably file a bug report to Ruby 1.9.

Imagine this code:

class Foo
  def initialize
       creation_time = Time.now
      ObjectSpace.define_finalizer self, lambda{ puts "An Object has
died (#{creation_time}-#(Time.now}) R.I.P."
   end

end

Here in the block puts really  means self.puts, so the block needs to
capture the binding of self, as well as the binding of the local
creation_time.

Now since the VM doesn't look inside the block when creating a proc,
it has to assume that the binding of he context in which the block was
created has to be captured.

-- 
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/