From: Austin Ziegler <halostatue@...>
Date: 2005-10-14T23:15:43+09:00
Subject: Re: Default argument values for blocks

On 10/13/05, Eric Mahurin <eric_mahurin@yahoo.com> wrote:
> --- Austin Ziegler <halostatue@gmail.com> wrote:
> >   foo = lambda { |foo = 1 | 2| puts foo }
> How do you interpret the above?
>
> foo = lambda { |foo = 1| (2|puts foo) }
>
> or
>
> foo = lambda { |foo = (1|2)| puts foo }

The first isn't a reasonable interpretation. (Why? Execute it
mentally; we "puts foo", and puts returns +nil+; 2 | nil is a
TypeError.) The second is by far the bettter interpretation -- and
it's a lot cleaner than ->(foo = 1 | 2) { puts foo } will *ever* be.
I'd much rather put up with a performance hit than that ....
trainwreck in Ruby.

-austin
--
Austin Ziegler * halostatue@gmail.com
               * Alternate: austin@halostatue.ca