From: matz@... (Yukihiro Matsumoto)
Date: 2003-01-30T02:50:00+09:00
Subject: Re: Local variables & blocks

Hi,

In message "Re: Local variables & blocks"
    on 03/01/30, ahoward <ahoward@fsl.noaa.gov> writes:

|> I may drop ':=' part, i.e.
|>
|>   * block parameters are local to the block
|>   * shadowing cause warnings
|>   * no other way to make block local variables
|
|so, correct me if i am wrong, but this does not address the need to do
|
|  x = nil
|  a.each do |item|
|    x = ...
|  end
|  p x
|
|does it?

It does.  The key is:

  * no other way to make block local variables

So that x in

  a.each do |item|
    x = ...
  end
  p x

would not be a block local variable.  The code above will work without
preceding "nil" assignment.

							matz.