From: repeatr <repeater@...>
Date: 2003-05-17T02:43:57+09:00
Subject: procs and context

According to the Pickaxe:
______________
new  Proc.new [{| | block } ] -> aProc

Creates a new Proc object, bound to the current context. It may be called
without a block only within a method with an attached block, in which case
that block is converted to the Proc object.
--------------

But if i try to convert the block into a proc and rebind it "to the current
context" it fails. In the following snippet, i wish that the proc that is
defined in main context, be rebound into a Room's context.
______________
def method_missing(action)
  puts "#{action}...in the city"
end

class Room
  def method_missing(action)
    puts "#{action}...in the the privacy of your own room"
  end

  def live(&block)
    instance_eval { Proc.new.call }
  end

  def initialize
    put_feet_on_table
    snore
  end
end

walk
go_to_work

room = Room.new
room.live do
  walk_around_naked!
end
--------------

output:
walk...in the city
go_to_work...in the city
put_feet_on_table...in the the privacy of your own room
snore...in the the privacy of your own room
walk_around_naked!...in the city


oh dear, how embarassing! ;-)
Please explain, kind sirs.  I think i'm understanding the word "context"
wrong. Also, could a proc rebinding possibly be done?

regards
Peter