From: Brad Wilson <dotnetguy@...>
Date: 2005-07-26T02:50:32+09:00
Subject: Re: An array updatable?

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attr_reader means you can get a reference to the cars collection, to which=
=20
then you are adding items. attr_reader doesn't imply that the thing it's=20
returning will be treated as read only. That it means is that the user is=
=20
not allowed to replace the collection itself.

On 7/25/05, EdUarDo <eduardo.yanezNOSPAM@nospamgmail.com> wrote:
>=20
> Hi again,
>=20
> I have this class:
>=20
> class A
> attr_reader :name, :cars
> attr_writer :name
>=20
> def initialize(name)
> @name =3D name
> @cars =3D Array.new()
> end
> end
>=20
> a =3D A.new("xxxx")
> a.cars << "vectra" << "megane"
> puts a
>=20
> output:
>=20
> vectra
> megane
>=20
> Why can I access cars and modify it if I have not declared it how
> attr_writer. Must I simply declare it private?
>=20
>=20


--=20
Brad Wilson
http://www.dotnetdevs.com/
http://www.agileprogrammer.com/dotnetguy/

Peter: "Oh my god, Brian, there's a message in my Alphabits. It says,=20
'Oooooo.' "
Brian: "Peter, those are Cheerios."
- Family Guy

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