From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2010-05-27T23:29:29+09:00
Subject: Re: Module methods

2010/5/27 Une Bévue <unbewusst.sein@google.com.invalid>:
> i wanted to have a Module method having the same name as another one
> (from Kernel ?) :
>
> module PlaySound
> ...
>  def PlaySound.rand
>     play a random sound
>  end
> ...
> end
>
> then i had a stack overflow and found renaming the method to
> "PlaySound.random" was OK.
>
> I don' understand because i thougth Modules are designed to avoid names
> collision ?

I guess you are doing something like this:

irb(main):001:0> module PlaySound
irb(main):002:1> def PlaySound.rand
irb(main):003:2> rand
irb(main):004:2> end
irb(main):005:1> end
=> nil
irb(main):006:0> PlaySound.rand
SystemStackError: stack level too deep
	from (irb):3:in `rand'
	from (irb):3:in `rand'
	from (irb):6
	from :0


The rand that you call inside the PlaySound.rand is itself, not
Kernel's rand. Try this instead:

irb(main):007:0> module PlaySound
irb(main):008:1> def PlaySound.rand
irb(main):009:2> Kernel.rand
irb(main):010:2> end
irb(main):011:1> end
=> nil
irb(main):012:0> PlaySound.rand
=> 0.821838053097397

Jesus.