From: ptkwt@...1.aracnet.com (Phil Tomson)
Date: 2003-01-21T06:54:32+09:00
Subject: Re: Local variable scope

In article <3E2C5674.8020002@path.berkeley.edu>,
Joel VanderWerf  <vjoel@PATH.Berkeley.EDU> wrote:
>Daniel Carrera wrote:
>
>> Since 'foo' was defined before 'function' and both 'function' and 'foo' 
>> are in the same scope (I think) shouldn't 'function' see 'foo'?
>
>You can do this in 1.7:
>
>module M
>   foo = "bar"
>   define_method :function do
>     puts foo
>   end
>end
>include M
>
>function      # prints: bar

This falls into the catagory of 
one-of-those-1.8-features-I-didn't-know-about.

So define_method can define a method that 'knows' about all of the 
variables in the scope in which it is defined?  Useful, but one needs to 
be careful.

Phil

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