From: John Wells <lists@...>
Date: 2007-08-18T21:36:53+09:00
Subject: Emulating a Groovy feature?

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