From: Greg McIntyre <greg@...>
Date: 2003-11-20T20:32:20+09:00
Subject: Re: x.f! RCR

Dan Doel <djd15@po.cwru.edu> wrote:
> Oh, that's actually a very good point about ! methods. They're usually
> defined to have
> a return value that evaluates to true when the object was modified,
> and evaluates to
> false when not modified.
> 
> So  f.b! => f = f.b doesn't work because it always returns true 
> (essentially) unless
> f.b is false or nil for some reason.
> 
> I had forgotten about that. That effectively kills this proposal 
> assuming you want to
> preserve existing semantics.

Gosh, I had no idea! Well, at least I've learnt something new. :-)

-- 
Greg McIntyre ======[ greg@puyo.cjb.net ]===[ http://puyo.cjb.net ]===