From: Francis Cianfrocca <garbagecat10@...>
Date: 2006-05-23T06:28:45+09:00
Subject: Re: initializing instance variables in a module

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Looks promising but what if you have to assign to the variable? This code
throws an exception:

module Mixin
  def myvar
    @myvar ||=3D 100
    @myvar
  end

  def inc_myvar
    myvar +=3D 1
  end
end

class Klass
  include Mixin
end

Klass.new.inc_myvar




On 5/22/06, Simon Kr=F6ger <SimonKroeger@gmx.de> wrote:
>
> Francis Cianfrocca schrieb:
> > You still have to call it every time you use the variable.
> >
>
> Do you realy need to use the variable directly?
> My scripts tend to have very little use of '@'.
>
> module Foo
> def bar(key)
>    @myvar ||=3D Hash.new {|k,v| k[v] =3D []}
>    @myvar[key]
> end
> end
>
> class Test
>   include Foo
> end
>
> t =3D Test.new
> t.bar('baz') << 'eeek'
> p t.bar('baz')
>
>
> I didn't followed the whole thread so please ignore me
> if this was suggested before.
>
> cheers
>
> Simon
>
>

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