From: Dave Thomas <Dave@...>
Date: 2001-03-06T15:11:35+09:00
Subject: [ruby-talk:12095] Re: Another hook

matz@zetabits.com (Yukihiro Matsumoto) writes:

> |If we're in to hooks, there's another that might be useful:
> |
> |  to_bool:
> |     analogous to to_s, called whenever an object is used in a context 
> |     that requires a boolean value (this one came up on
> |     #ruby-lang). Masochists could use this to emulate Perl
> 
> And performance would be the excuse again.

Would it be that bad in reality? You'd only have to do the call if
to_bool was defined anywhere, so for programs that didn't use it it
would only be a single instruction added to the path. I'm sure we can
find one to take away somewhere to compensate... :)


Dave