From: "Mauricio Fernández" <batsman.geo@...>
Date: 2003-02-15T08:00:24+09:00
Subject: Re: Lexical scope and closures

On Sat, Feb 15, 2003 at 07:01:21AM +0900, Tom Sawyer wrote:
> on another note:
> 
> this matter has become tricky to deal with because of the way in which ruby 
> deals with scoping instance variables, vs. instance methods, vs. local 
> variables, etc. point blank: it is not symmetrical. i wish it could be made 
> so, but that would of course break code. :-( 
> 
> just the same i'll put the idea out here:
> 
>   class A
>     def initialize
>       # local variables
>       initialize.a ="instead of just a"
>       %b = "as sugar for above (used in blocks)"      
>       # instance variables
>       self.c = "instead of @c"
>       d = "as above but where self is implied"

How do I use A#c then if there's @c?
Plus I think locals are more used than i.v. so it makes more sense to
prefix the latter...

>       # class variables
>       A.e = "instead of @@e"
>       @f = "this then could be class variable sugar"

You forgot my beloved class instance variables :)

class << A
 attr_accessor :e
end

A.e  # class instance variable, NOT class variable 


>       # globals
>       toplevel.g = "or global.g"
>       $h = "global sugar"
>     end
>   end

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