From: dblack@...
Date: 2007-07-24T18:50:39+09:00
Subject: Re: Static variables in Ruby.

Hi --

On Tue, 24 Jul 2007, Jeremy Henty wrote:

> On 2007-07-24, Robert Klemme <shortcutter@googlemail.com> wrote:
>
>> If you mean static variables that are visible in a single method
>> only, then no, there is no way to do it.
>
> *cough*
>
> class Foo
>  count = 0
>  define_method(:foo) { count += 1 }
> end
> x = Foo.new
> 3.times { puts x.foo }
>
> ==>
> 1
> 2
> 3

"Static" is a misleading term, though.  It's just a local variable
that happens to get wrapped in a closure.  In general, I don't think
Ruby and the word "static" mix very well :-)  Constants are sort of
statically scoped, but that's about it.


David

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