From: Hidetoshi NAGAI <nagai@...>
Date: 2005-12-02T16:51:52+09:00
Subject: Re: Ruby/Tk: pack() with block doesn't work

From: Hidetoshi NAGAI <nagai@ai.kyutech.ac.jp>
Subject: Re: Ruby/Tk: pack() with block doesn't work
Date: Fri, 2 Dec 2005 16:31:20 +0900
Message-ID: <20051202.163115.59666027.nagai@ai.kyutech.ac.jp>
> 'pack' method doesn't accept a block.
> So, I think that it is a bug in the Pickaxe example.

If use the following definition, 'pack' can accept a block. ;-)
-----------------------------------------------------------
class TkWindow
  alias _pack pack
  def pack(h=nil, &b)
    _pack(h)

    if b
      dummy_obj = Object.new
      dummy_obj.instance_variable_set('@w', self)
      class << dummy_obj
        def method_missing(id, val)
          @w.pack(id=>val)
        end
      end
      dummy_obj.instance_eval(&b)
    end

    self
  end
end
-----------------------------------------------------------
-- 
Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)