From: Brian Candler <b.candler@...>
Date: 2010-07-16T01:39:06+09:00
Subject: Re: Can't change the value of self

Ralph Shnelvar wrote:
> I have been taught that "an object should take care of itself" ... 

It can take care of itself, it can't turn into someone else :-)

If YAML.load is returning an instance of class UD_Config directly, then 
just return that to the user. Make a class method, so they call

   res = UD_Config.load(...)

instead of

   res = UD_Config.new(...)

Otherwise, YAML.load is returning some other object - possibly a Hash - 
with which you wish to initialize your new UD_Config object. So you need 
to copy values out of that object into your object's instance variables.

If YAML.load gives an object with instance variables, you can copy them 
in a loop: look at 'instance_variables' and 'instance_variable_get' / 
'instance_variable_set'
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