From: Robert Dober <robert.dober@...>
Date: 2007-08-06T19:44:40+09:00
Subject: Re: Dynamic method call

On 8/6/07, dohzya <dohzya@gmail.com> wrote:
> Le lundi 06 ao�t 2007 � 08:47 +0900, Gregory Brown a �crit :
> > On 8/4/07, Bas van Gils <bas@van-gils.org> wrote:
> > > On Thu, Aug 02, 2007 at 04:48:30AM +0900, dohzya wrote:
> > > >
> > > > Do you want something like this  :
> > > > ---
> > > > def sendif( args, &bloc )
> > > >   if args[:if]
> > > >     send args[:then].shift, *args[:then], &bloc
> > > >   else
> > > >     send args[:else].shift, *args[:else], &bloc if args[:else]
> > > >   end
> > > > end
> > > >
> > > > sendif :if => 1 < 2, :then => [:p, "gagne"], :else => [:puts, "perdu"]
> > > > ---
> > > > ?
> > >
> > > Damn, that's elegant!
> >
> > I dig it too, though I like better:
> >
> > sendif 1 < 2, :then => [:p, "gagne"],  :else => [:puts, "perdue"]
> >
> > just because it kills the redundant if.
> >
>
> in ruby 1.9 :
> ---
> sendif 1 < 2, then: [:p, "gagne"], else: [:puts, "perdue"]
> ---
> as elegant as Objective-C !
>
>
> if I am very evil :
> ---
> def then &b ; Proc.new &b ; end
> def else &b ; Proc.new &b ; end
> def sendif test, then, else
>   test ? then.call : else.call
> end
> sendif 1 < 2, then {p "gagne"}, else {puts "perdue"}
> ---
> but it's too expensive for a simple function...
let us make it cheaper then

def then &b; b.call end
def else &b;  b.call end
sendif 1 < 2, then { p "gagnee"}, else { puts "perdu"}

My wife made me change the output ;)

Cheers
Robert
-- 
[...] as simple as possible, but no simpler.
-- Attributed to Albert Einstein