From: Tim Pease <tim.pease@...>
Date: 2007-01-13T02:24:25+09:00
Subject: Rake, Hoe, Meta-Programming, and Warnings (oh my!)

Is there a way to disable specific warnings from within a Ruby program
(not from the command line)?

The warnings are coming from some meta-programming code that is
redefining instance methods on the fly based on user input. So maybe a
better question would be, is there a way to redefine methods without
causing Ruby to spew out a warning each time the method is redefined.

This is the result of using Hoe (thanks Ryan, Eric, and other sun
deprived Rubyists) to run my unit tests. Hoe adds the -w flag to the
Ruby interpreter when it runs tests. This is a good thing as it found
several minor flaws in my code. But redefining methods is at the heart
of what I'm trying to do.


Example:

class Pattern
  def self.create_date_format_methods( pf )
    module_eval <<-CODE
      def pf.format_date
        Time.now.strftime "#{pf.date_pattern}"
       end
    CODE
  end
end

When running unit tests with the -w flag ...

(eval):1: warning: redefine format_date



Any thoughts on how to suppress the warning and/or change my
meta-programming so the warning does not show up?

Blessings,
TwP