From: dohzya <dohzya@...>
Date: 2007-08-06T19:32:37+09:00
Subject: Re: Dynamic method call

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...

-- 
Etienne Vallette d'Osia