From: dblack@...
Date: 2006-03-09T00:38:21+09:00
Subject: Re: newbie question about scope, variables, declarations of variables and option strict (as in perl)

Hi --

On Thu, 9 Mar 2006, James Edward Gray II wrote:

> On Mar 8, 2006, at 8:39 AM, dblack@wobblini.net wrote:
>
>> Hi --
>> 
>> On Wed, 8 Mar 2006, James Edward Gray II wrote:
>> 
>>> On Mar 8, 2006, at 3:01 AM, Talha Oktay wrote:
>>> 
>>>> When I qualify log with $ as
>>>> $log, it becomes global and I no longer receive error. I have tried it
>>>> qualifying with @ etc. but the received the same error.
>>> 
>>> No, this works too (after you fix your Logger constructor call):
>>> 
>>> require 'logger'
>>> 
>>> @log = Logger.new("test.log")  #some other logger settings are ignored.
>>> 
>>> def func
>>> @log.debug "a statement" # error is reported here when func is called 
>>> below
>> 
>> That's a different @log from the one you assigned to, though.
>
> I'm not sure why you say this, but you're wrong.  ;)  Here's the proof:
>
> Neo:~/Desktop$ ls
> log.rb
> Neo:~/Desktop$ cat log.rb
> require 'logger'
>
> @log = Logger.new("test.log")  #some other logger settings are ignored.
> p @log.object_id
>
> def func
> @log.debug "a statement" # error is reported here when func is called below
> p @log.object_id
> # some code
> end
>
> #some code continues
> func
> Neo:~/Desktop$ ruby log.rb
> 923180
> 923180

Weird.  I guess Logger does something bizarre in its constructor.


David

-- 
David A. Black (dblack@wobblini.net)
Ruby Power and Light, LLC (http://www.rubypowerandlight.com)

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