From: Logan Capaldo <logancapaldo@...>
Date: 2007-09-05T07:58:13+09:00
Subject: Re: Struct is cleverer than the documentation claims

On 9/4/07, Daniel DeLorme <dan-ml@dan42.com> wrote:
> Robert Klemme wrote:
> > Why should I reopen a class if I can have everything with the block?
> >
> > Customer = Struct.new :name, :address do
> >   def to_s
> >     "Customer called '#{name}' living at '#{address}'"
> >   end
> > end
>
> because, say, you'd want to add a constant to that class
>    Customer = Struct.new :name, :address do
>      K = 42
>    end
>    Customer::K
>    (irb):7: warning: toplevel constant K referenced by Customer::K
>
This is workaroundable, if a bit ugly as I recently learned:
Customer = Struct.new :name, :address do
  self::K = 42
end
Customer::K

> Daniel
>
>