From: Bertram Scharpf <lists@...>
Date: 2009-01-21T13:23:21+09:00
Subject: Re: efficient access of instance variables

Hi Tom,

Am Mittwoch, 21. Jan 2009, 09:49:04 +0900 schrieb Tom Cloyd:
> Tom Cloyd wrote:
>> manlog = ManageLog.new
>> manlog.open
>> log, logging_now = manlog.log, manlog.logging_now
>>
> Scratch this call for help. I getting it figure out. ~t.
>

Anyway I'm egged to advertise my private philosophy.

  class ManageLog
    class <<self
      private :new
      def open
        o = new
        o.open
        yield o
      end
    end
    def logged
      yield $stdout, $stderr
    end
  end

  ManageLog.open |m| do
    m.logged do |log,log_now|
      ...
    end
  end

Or maybe

  class ManageLog
    def log_my_pipes stdout, stderr
      $stdout.reopen stdout
      $stderr.reopen stderr
      yield
    ensure
      $stdout.reopen STDOUT
      $stderr.reopen STDERR
    end
  end

This is, of course, untested and just a suggestion.

Bertram


-- 
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de