From: Gavin Sinclair <gsinclair@...>
Date: 2012-02-02T20:55:40+09:00
Subject: Re: Multiple assignment in conditional

On Thu, Feb 2, 2012 at 7:15 AM, Joel VanderWerf
<joelvanderwerf@gmail.com> wrote:

> You can trick ruby:
>
> def foo; nil; end
>
> if (_ = (a, b = foo))   [...]

Done and done!

  def week_and_day(date)
    if not self.include? date
      nil
    elsif _ = (week, day = @t1.week_and_day(date))
      [week, day]
    elsif _= (week, day = @t2.week_and_day(date))
      [week + @t1.number_of_weeks, day]
    end
  end

I guess I need to document a Ruby 1.9.3+ requirement :)