From: lasitha <lasitha.ranatunga@...>
Date: 2009-03-03T14:13:21+09:00
Subject: Re: Using inline "rescue" with error class

On Tue, Mar 3, 2009 at 5:58 AM, Iñaki Baz Castillo <ibc@aliax.net> wrote:
> I would like to just write:
>  IPAddr.new(value) rescue ArgumentError puts "Invalid IP"
>
> Unfortunatelly it doesn't work when the rescue action occurs:
> ------------
> Invalid IP
> NoMethodError: undefined method `ArgumentError' for main:Object
> ------------
>

The rescue statement modifier doesn't take an exception parameter.
You'd have to make do with:
IPAddr.new(value) rescue puts "Invalid IP"

This of course makes the construct much less appealing.
There has been a very recent thread related to this.

Solidarity,
lasitha