From: "David A. Black" <dblack@...>
Date: 2004-12-01T11:10:13+09:00
Subject: Re: singleton methods : when are they not permitted?

Hi --

On Wed, 1 Dec 2004, Christoph wrote:

> Francis Hwang schrieb:
> 
> >
> > On Nov 30, 2004, at 6:12 PM, Florian Gross wrote:
> >
> >> It also seems not to be possible to directly add methods to literals 
> >> like this: (Not sure why -- maybe Ruby optimizes literals?)
> >
> Pardon my igmorance but what is a literal?
> 
> > Errrr. So what's the difference between
> >
> > def ("x").foo; end
> >
> > and
> >
> > def (("x")).foo; end
> >
> > Why do the extra parens make the parser treat it differently? My head 
> > hurts.
> 
> Mine too - I find these error messages rather missleading
> after all both
> 
> ("x") == "x"
> 
> (("x")) == "x"
> 
> evalute to true

So does:

  a = "x"
  a == "x"

but still, during parsing a bare identifier like 'a' and a literal
like '"x"' are not treated the same way.


David

-- 
David A. Black
dblack@wobblini.net