From: Jamis Buck <jgb3@...>
Date: 2003-12-10T06:46:02+09:00
Subject: Referencing writable attributes as block parameters

I stumbled on this, almost by accident, and I'm curious as to whether 
this is a "feature" or a "bug".

  S = Struct.new( "S", :a )
  s = S.new
  [ 1, 2, 3, 4, 5, 6 ].each { |s.a| puts s.a }

This prints each element of the array, but what I'm curous about, is 
that the block actually assigns each value to s.a.

I like this.

However, I don't want to use this if it is liable to change.  Is this 
simply a side-effect of the way block parameters are being handled right 
now?  In other words, is this something that may potentially change in 
Ruby2?

-- 
Jamis Buck
jgb3@email.byu.edu

ruby -h | ruby -e 'a=[];readlines.join.scan(/-(.)\[e|Kk(\S*)|le.l(..)e|#!(\S*)/) {|r| a << r.compact.first };puts "\n>#{a.join(%q/ /)}<\n\n"'