From: Dumaiu <Dymaio@...>
Date: 2007-12-11T10:10:08+09:00
Subject: Re: How much would variable declarations in Ruby make you wince?

On Dec 10, 5:57 pm, Jay Levitt <jay+n...@jay.fm> wrote:
> On Mon, 10 Dec 2007 13:44:15 -0800 (PST), Dumaiu wrote:
> >    In languages that support this, isn't it normal for the compiler to
> > generate an error if you declare the same variable twice at the same
> > scope level?  So even if you do make this kind of mistake, it
> > announces its presence on the first pass?
>
> Sure, but again, if you mistyped the chronologically-second,
> semantically-first var as
>
>    def say_hello(destination, first_name)
>      var destination

     Boy, I know that if I were implementing this 'var' stuff, I would
make that illegal too!

>      var firsst_name

     ...And that wouldn't get written at all...

> Hey, no error, no overlap!

      ...and the real issue would be how to handle the naming of block
parms, which I don't think has been brought up yet.

>
> Ruby already has a way (several ways, actually!) for all these errors to be
> announced on the "first pass".  Test::Unit, RSpec, etc.

      I can get back to you once I've tried RSpec.

       -Jonathan