From: dblack@...
Date: 2002-08-08T12:27:21+09:00
Subject: Re: Redefining send()

Hi --

On Thu, 8 Aug 2002, Harry Ohlsen wrote:

> My code looked like ...
>
>    class Fred
>        alias old_send send
>
>        def send(name, *args)
>            $stderr.puts "send('#{name}')"
>            old_send(name, *args)
>        end
>
>        # ...
>    end
>
> Hence, I was expecting that when any method of Fred was called, I'd see the
> message, and then the real code would be called.  As I say, I never see the
> message, so I assume the re-definition has been ignored ... or maybe I'm
> missing the point entirely!

I can't get it not to work:

  class Fred
    alias old_send send

    def send(name, *args)
      $stderr.puts "send('#{name}')"
      old_send(name, *args)
    end

    def say(x)
      puts "hi: #{x}"
    end
  end

  Fred.new.send(:say, "there")

Output:

  send('say')
  hi: there

(Ruby 1.6.7)


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav