From: Robert Dober <robert.dober@...>
Date: 2009-01-05T05:43:30+09:00
Subject: [ruby-core:21121] Re: Definable != is a Bad Thing???

On Fri, Jan 2, 2009 at 12:42 PM, Kornelius Kalnbach <murphy@rubychan.de> wrote:
> Daniel Luz wrote:
>> What I personally don't like about this is that it gives you a false
>> sense of control. We still can't handle && and ||
> the problem is short-circuit evaluation, I guess. this one should not
> run the command:
>
>  false && `rm -rf .`
>
> it has to be part of the AST, and can't be changed at runtime. AFAIK,
> you can't translate "a && b" into a method call in Ruby. they are more
> like "and" and "or".
You sure could
def && a, &blk
  return blk.call if a
  a
end

and
a && b
is syntactic sugar for
&&(a){b}

Now I am not saying that this is a good idea, I am just saying that it
can be done easily enough :)
Cheers
Robert
 --
It is change, continuing change, inevitable change, that is the
dominant factor in society today. No sensible decision can be made any
longer without taking into account not only the world as it is, but
the world as it will be ... ~ Isaac Asimov