From: Christian Leskowsky <christian.leskowsky@...>
Date: 2005-11-14T02:03:50+09:00
Subject: Re: Execute block in context of yielding method's module

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Thanks for the reply guys!

This last one looks much better to my eyes, but I'm still having problems.

I like the code I write to tell as much to the reader about what's going on
as it possibly can-right there (without having to jump to other methods, in
other classes, in other modules).

I think I'd probably have a hard time figuring out what:

C.new do |c|
c.x =3D 1
end

did, without having:

class C
attr_accessor :x
def initialize
yield self
end
end

being directly above it (on the same screen somewhere). It might take a few
more keystrokes to write:

c =3D C.new
c.x =3D 1

in general, but to me, it's much more readable.

The other thing that bugs me (and it's probably just an unfortunate
example), is that it looks like I'm passing out a reference to myself,
before I'm completely initialized. ugh!

Strange stuff... I think I'll just stay about as for away from it as I can
:).


--
-

'There was an owl lived in an oak.
The more he heard, the less he spoke.
The less he spoke, the more he heard.'

Christian Leskowsky
christian.leskowsky@gmail.com




On 11/13/05, David A. Black <dblack@wobblini.net> wrote:
>
> Hi --
>
> On Sun, 13 Nov 2005, Christian Leskowsky wrote:
>
> > Hey guys,
> >
> > I'm very new to ruby.
> >
> > This is some freaky shite! Could somebody give me a use case as to when
> I'd
> > want to do something like this?
>
> Somewhat rarely :-) I actually prefer to know what 'self' is when I
> write a block. I'm uneasy with the idea that here:
>
> some_method { another_method }
>
> I can't tell by looking who's receiving the another_method message.
>
> A more common idiom is to provide the object so that you can see
> exactly who's doing what:
>
> class C
> attr_accessor :x
> def initialize
> yield self
> end
> end
>
> C.new do |c|
> c.x =3D 1
> end
>
> and things like that.
>
>
> David
>
> --
> David A. Black
> dblack@wobblini.net
>
>

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