From: gabriele renzi <surrender_it@...1.vip.ukl.yahoo.com>
Date: 2004-05-03T19:59:00+09:00
Subject: Re: Lazy evaluation (evil)

il Mon, 03 May 2004 12:30:53 +0200, Kristof Bastiaensen
<kristof@vleeuwen.org> ha scritto::

>
>I agree on everything except point (2).  Just because there are
>also methods, which are different things as procs, doesn't mean
>that there are no first class functions.  Take the following code:
>add = lambda { |x| lambda { |y| y + x }}
>add2 = add.call(2)
>add2.call(5)
>=> 7
>add2.call(7)
>=> 9

a little cosmethic change:
>> add = lambda { |x| lambda { |y| y + x }}
=> #<Proc:0x028b6448@(irb):1>
>> add7= add[7]
=> #<Proc:0x028b6490@(irb):1>
>> add7[5]
=> 12
>>

you can use var[args] with callable objects (continuations, methods,
procs)

>This works just like it does in scheme.  

I'm not an expert, but ruby models should be closer to LISP than
scheme, cause function/methods are not in the same 'namespace', wich
is true in scheme. I mean, we have method() and LISP has the
sharp-quote notation. But I may be cmpletely wrong.