From: "James F.Hranicky" <jfh@...>
Date: 2002-10-04T20:08:41+09:00
Subject: Re: Specifying local and external block parameters (that old chestnut)

On Fri, 4 Oct 2002 18:54:45 +0900
Nikodemus Siivola <tsiivola@cc.hut.fi> wrote:

> a and c are local
> ::b and ::c refer to the enclosing environment.
> 
> array.each {|a, ::b|
>   c = a + ::b
>   ::d = a - ::b
> }

I proposed this a while back, too. In this case, though, you wouldn't need
to specify "::b" within the block, as it was declared external to the block
in the paramter list, right:

  array.each {|a, ::b|
    c = a + b
    ::d = a - b
  }

That is, unless this fall into the same category as "__var" , where we
have to specify scope at compile time (why "attr_private" won't work).

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