[self-interest] Re: blocks
Pablo de Marcos
deMarcosP at Hotmail.com
Fri Nov 21 12:41:14 UTC 2003
Steve, sorry but in the example [ add = method(n, block(x, x + n)) ] i
don't understand ...
Where does x live?
If I invoke
a = add(10)
then it signified to execute a method with 1 argument (n) whose
functionality is to process x+n, but where is x?
From: Steve Dekorte <steve at dekorte.com>
Reply-To: self-interest at yahoogroups.com
To: self-interest at yahoogroups.com
Subject: Re: [self-interest] Re: blocks
Date: Thu, 20 Nov 2003 13:30:16 -0800
On Nov 20, 2003, at 12:35 PM, Jecel Assumpcao Jr wrote:
> It certainly does work, but I wouldn't call it simple. Since Self
> doesn't allow non-lifo blocks, I'll rewrite your example in Smalltalk
> MyObject>>add: n
> ^ [:x | x + n]
> a := myObject add: 10.
> b := myObject add: 20.
> Transcript show: (a value: 10).
> Transcript show: (b value: 10).
I don't understand why this is simpler. Could you explain? It's not
important, I'm just confused and would prefer not to be. :-)
Here's a simplified Io version:
add = method(n, block(x, x + n))
a = add(10)
b = add(20)
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