From: Trans <transfire@...>
Date: 2005-11-12T22:22:14+09:00
Subject: Execute block in context of yielding method's module

Mental block. Is there a reasonable way to do this?

  def dothis ; puts "NO!" ; end

  module M
    class << self
      def dothis
        puts "THIS" + @number.to_s
      end
      def wrap( n, &yld )
        old = @number
        @number = n
        yld.call
        @number = old
      end
    end
  end

  M.wrap( 10 ) do
    dothis
  end

This produces "NO!". How do I get it to execute the block in the
context of M, so that it produces "THIS10" (w/o having to out
M.dothis).

Thanks,
T.