From: Robert Klemme <lists@...>
Date: 2012-03-27T16:35:52+09:00
Subject: Re: include over extend ?

Thomas Sawyer wrote in post #1053450:
> I have a set of modules that contain methods intended for the class
> level. As such, does in make more sense to use straight interface:
>
>     class Foo
>       extend ModuleInQuestion
>
>       ...
>     end
>
> Or, would you say it is better to refactor to use more idiomatic
> inclusion, using some form ClassMethods/included callback allowing:
>
>     class Foo
>       include ModuleInQuestion
>
>       ...
>     end
>
> What say you?

Use #extend because include will also place methods in the scope of 
instances which is not what you want.  Note: you can make it work with 
include but IMHO that makes things overly complicated.

Kind regards

robert

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