From: Paul Brannan <pbrannan@...>
Date: 2001-10-24T06:21:03+09:00
Subject: [ruby-talk:23098] Re: Bruce Eckel's opinion of Ruby

On Wed, 24 Oct 2001, Rich Kilmer wrote:

> I realize it does not in the sense that overriding a method on class
> Array will effect the entire interpreter, but in the sense that it
> partitions symbols (variables, classes, modules, etc).
>
> Are you speeking here of an ability to actually change Array, but have
> that change only be available to the originating "namespace" and
> classes (or modules) defined within a "namespace" are only visible to
> that "namespace"?

Someone brought this up at the conference.  Does this give the desired
result?

module Foo
  class Array < Array
    def []=(foo, bar)
      super(foo, bar)
      puts 'foo'
    end
  end

  def self.foo
    a = Array.new
    a[0] = 42
  end

  foo
end

a = Array.new
a[0] = 42

Paul