From: Justin Bailey <jgbailey@...>
Date: 2006-05-09T05:38:33+09:00
Subject: Re: Question about instance_eval

------=_Part_42884_21137293.1147120709035
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

No. Define method missing to dispatch calls to "foo" to the accessor, and
change your block just a little bit. E.g.

class IETest
  def method_misssing(sym, *args, &blk)
    # dispatches any methods missing to "assignment" version of method.
    self.__send__(sym + "=3D", *args, &blk)
  end
end

t =3D IETest.new
t.instance_eval { foo 'foo' } # notice lack of assignment operator
puts t.foo


On 5/8/06, Pat Maddox <pergesu@gmail.com> wrote:
>
> I'm trying to use instance_eval in a project I'm doing, and I
> extracted a very simple example:
>
> class IETest
>   attr_accessor :foo
> end
>
> t =3D IETest.new
> t.instance_eval { self.foo =3D 'foo' }
> puts t.foo
>
> This works as expected.  However if I do
> t.instance_eval { foo =3D 'foo' }
>
> then t.foo =3D> nil
>
> I also know that t.instance_eval { @foo =3D> 'foo' } would work in this
> case.  However, I'm trying to set a Rails attribute, so I have to go
> through the method accessor.  Is there any way that I can make this
> work with just { foo =3D 'foo' } instead of { self.foo =3D 'foo' } ?
>
> Pat
>
>

------=_Part_42884_21137293.1147120709035--