From: Robert Klemme <shortcutter@...>
Date: 2010-08-29T21:55:07+09:00
Subject: Re: require from a method

On 29.08.2010 13:11, Markus Fischer wrote:
> Hi,
>
> On 29.08.2010 12:40, Robert Klemme wrote:
>> On 29.08.2010 12:25, Ammar Ali wrote:
>>
>>> Are there any gotchas in requiring files from within a method? It
>>> seems to work, but I have a sinking feeling that I'm missing something
>>> here.
>>
>> Not technically.  It might even be more efficient if you require a
>> particular functionality only rarely and include the "require" in the
>> method that needs that functionality.
>
> Sorry for hijacking, but I'm wondering how require exactly works in the
> context of a class or method; does scoping play any role if I've defined
> classes/modules in the required file?

No.  It would be bad because then if the require statements would be 
executed in a different order totally unpredictable behavior would occur.

Robert@babelfish ~
$ echo 'p self' >x.rb

Robert@babelfish ~
$ ruby19 -r x -e 1
main

Robert@babelfish ~
$ ruby19 -r x -e 'class X; def m;require "x"; end; end; X.new.m'
main

Robert@babelfish ~
$

Cheers

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/