From: Stefan Rusterholz <apeiros@...>
Date: 2007-08-18T22:32:50+09:00
Subject: Re: Emulating a Groovy feature?

John Wells wrote:
> Guys,
> 
> There's something called Safe Navigation in Groovy 
> (http://groovy.codehaus.org/Statements#Statements-Safenavigation) that I 
> find very appealing.
> 
> So, Groovy will allow you to safely walk an object graph, even if that 
> graph has nulls in it (the walk will short circuit):
> 
> def foo = null
> def bar = foo?.something?.myMethod()
> assert bar == null
> 
> Is there an easy way to hack an equivalent out in Ruby?
> 
> Thanks,
> John

Good to see that I'm not alone on this :)
I still intend to write an RCR for this. You might want to read through 
http://www.ruby-forum.com/topic/115720

Regards
Stefan
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