From: Trans <transfire@...>
Date: 2005-09-16T04:01:35+09:00
Subject: Re: you can't get in trouble with your boss for picking C#


Florian Gro� wrote:
> John wrote:
>
> > There is nothing to set C# apart from Java, except for the impossibly
> > huge .NET framework for developing a billion different kinds of
> > applications.
>
> Please, have a look at
> http://taubz.for.net/blog?entry=http://taubz.for.net/blog/blog-6956298/dd7d1bf8-3fcd-4a3a-8fba-d4dca0c5da12
>
> How can a language where you can write this be as bad as Java?
>
>    var old_numbers = new [] {1, 2, 3, 4};
>    // And yes, I still don't like arrows. :/
>    var new_numbers = old_numbers.map(number => { number * 2 });
>
> True, this is not possible just yet, but C# 2 already introduced
> features like yield return and delegate(int x) { return x * 2; } that
> are a huge step away from the simple mindedness of Java.

Had to do it.

require 'blankslate'

class Delegate < BlankSlate
  def initialize( obj, &yld )
    @obj = obj
    @yld = yld
  end
  def method_missing( sym, *args, &blk )
    if @yld
      @yld[ @obj ].__send__( sym, *args, &blk )
    else
      @obj.__send__( sym, *args, &blk )
    end
  end
end

module Kernel
  def delegate( obj, &yld )
    Delegate.new( obj, &yld )
  end
end

if $0 == __FILE__

  i1 = 1
  i2 = delegate( i1 ) { |x| x*2 }

  p i2
  puts i2

end