From: Michael Morin <uzimonkey@...>
Date: 2008-07-01T02:19:24+09:00
Subject: Re: Something like import/package in java?

Christoffer Lern� wrote:
> Hi,
> 
> 
> I keep feeling frustrated with my ruby project.
> 
> My problem is one of organization.
> 
> My code looks a bit like this:
> 
> lib/
>     main.rb
>     comman    ds/
>         logio.rb
>         create.rb
>         chat.rb
>     server/
>     io/
>     protocol/
>     utils/
> 
> And I keep writing code like
> 
> require 'commands/logio'
> require 'commands/create'
> require 'commands/chat'
> 
> etc.
> 
> 
> What is annoying is the disconnect from what actually happens.
> 
> With "require 'commands/logio'" I am actually importing the two classes 
> LogIn and LogOut as well as ensuring a bunch of other files are included.
> "require 'commands/create'" is importing classes CreateNew and 
> ReturnDead and so on.
> 
> To some extent I can fix this by enforcing a strict 1 file - 1 class 
> policy, but the problem does not quite go away.
> 
> In java it's a bit simpler although far from perfect: "import 
> commands.*" would import all the classes in one sweep, and of course the 
> strict 1 file - 1 class policy is maintained in java for public classes.
> 
> 
> What I'd love to have is something like this instead of require:
> 
> <logio.rb>
> package commands
> 
> class LogIn
> ...
> end
> 
> class LogOut
> ...
> end
> 
> end
> 
> <main.rb>
> import commands.LogIn
> 
> where import goes into the commands dir and just loads that single class.
> 
> Is there something like this available? Any ideas?
> 
> 
> /C
> 

Not really.  If you're worried about namespace pollution, you can put 
everything into a module.  Besides including the module and "importing" 
everything within it, I don't think there's a way to selectively include 
classes or methods from the module.

What exactly are your concerns?  Neatness aside.

-- 
Michael Morin
Guide to Ruby
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