From: Aredridel <aredridel@...>
Date: 2006-02-13T05:16:30+09:00
Subject: Re: Struct creates non-standard classes

On Mon, 2006-02-13 at 04:45 +0900, Mark Volkmann wrote:
> If Struct is a shorthand way for creating Classes, why don't objects
> created from those Classes have instance_variables?
> 
> Struct.new 'Car', :make, :model, :year
> c = Struct::Car.new 'Saturn', 'SC2', 1997
> c.instance_variables => []
> c.members => ["make", "model", "year"]
> 
> Note that members is an instance method of Struct, whereas
> instance_variables is an instance method of Object.


Because they're not stored as instance variables.