From: Dave Thomas <Dave@...>
Date: 2001-03-25T23:03:58+09:00
Subject: [ruby-talk:13194] Re: self in blocks used with tk methods

joel <skeeler@sirius.com> writes:

> You say that no other threads can access the object during the
> instance_eval call within initialize. Is that because new calls
> initialize before putting the object in ObjectSpace? Is it really
> impossible to access the object, or is it just that no variable
> refers to it yet?

I _think_ what it says is that is you use a form of object
construction that looks like:

  a = Fred.new
  a.setAge 10
  a.setTown "Bedrock"
  a.setFriend barney

and so on, then your object is not fully initialized (and therefore is 
not internally consistent) until after the last 'set', so you'll need 
to protect it from access in other threads. This does not apply with
the form that uses a block.



Dave