From: Guillaume Marcais <guslist@...>
Date: 2003-07-09T23:36:10+09:00
Subject: Re: Array.each

On Wed, 2003-07-09 at 06:08, ts wrote:

> B> An exception would be better from my point of view though.
> 
>  and break old scripts ?

Is there a way to voluntary make the warnings errors. For example, a
switch on the ruby command line.

Something like:

% ruby -e '{1 => 1}.each {|i| p i}'
-e:1: warning: multiple values for a block parameter (2 for 1)
        from -e:1
[1, 1]

% ruby -W -e '{1 => 1}.each {|i| p i}'
WarningError: multiple values for a block parameter (2 for 1)
        from -e:1

How hard would it be to implement?
Guillaume.