From: Chris Pine <nemo@...>
Date: 2003-04-18T02:13:24+09:00
Subject: Re: case statements and classes

----- Original Message -----
From: "Dave Thomas" <dave@pragprog.com>

It's because the more common use is to compare objects with their
classes:

   case 1
   when Integer then 'int'
   ...
   end
----------------------------

Oh, I know *why* it does what it does, and I love it the way it is.


----------------------------
How about using a Hash:
----------------------------

Well, that was a smaller example.  I suppose I could use a hash and bind
classes to procs... but I have since come up with this (somewhat ugly)
trick:

  irb(main):001:0> case Integer.id
  irb(main):002:1> when String.id  then 'str'
  irb(main):003:1> when Integer.id then 'int'
  irb(main):004:1> when Array.id   then 'arr'
  irb(main):005:1> else '???'
  irb(main):006:1> end
  => "int"

Good enough for now,

Chris