get modules that are in a class? - comp.lang.ruby

Message from discussion get modules that are in a class?

Travis D Warlick Jr

More options Jul 7 2007, 11:10 pm

Newsgroups: comp.lang.ruby

From: Travis D Warlick Jr <warli...@operissystems.com>

Date: Sun, 8 Jul 2007 12:10:00 +0900

Subject: Re: get modules that are in a class?

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Aaron Smith wrote:
> Wayne E. Seguin wrote:
>> On Jul 07, 2007, at 22:00 , Aaron Smith wrote:
>>> is it possible to find out what modules have been included inside of a
>>> class?

>> Yes Aaron it is, via the method "included_modules"

>> http://www.ruby-doc.org/core/classes/Module.html#M001697

> What about within a class?

> module TestModule
> def say_something
> puts "SOMETHING"
> end
> end

> class Test
> include TestModule
> end

> t = Test.new
> puts t.included_modules

Remember that when you include the module, you're including _all_ the
module's methods (including Module#included_modules)

So, use self.class to get the Class object of the current instance (this
will work from the included modules also), so you should be able to do:

self.class.included_modules

And a debugging efficiency tip: use the Array#sort method with the
Module#included_modules to sort the list of included modules for easier
viewing. I use this all the time in IRB. (This also works with
Class#methods and all the like)

irb(main):001:0> YourClass.methods.sort

--
Travis Warlick
Operis Systems, LLC
Lead Developer

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