Comments on: super is your friend http://blog.fallingsnow.net/2008/04/02/super-is-your-friend/ life and tech stuff by Evan Phoenix Sat, 29 Oct 2011 15:31:08 +0000 hourly 1 http://wordpress.com/ By: Graeme Mathieson http://blog.fallingsnow.net/2008/04/02/super-is-your-friend/#comment-9965 Fri, 25 Apr 2008 14:14:39 +0000 http://evanphx.wordpress.com/?p=42#comment-9965 It gets better. N is an ancestor of A, so you could do:

class A < B
include N
def go
puts "A#go"
super
end
end

which will then print:

irb(main):021:0> A.new.go
A#go
N#go
B#go

]]> By: Piers Cawley http://blog.fallingsnow.net/2008/04/02/super-is-your-friend/#comment-9729 Thu, 03 Apr 2008 13:40:09 +0000 http://evanphx.wordpress.com/?p=42#comment-9729 Hang on, this isn’t a ‘trick’ this one of the fundamental ideas of OO programming.

]]> By: Brian Mitchell http://blog.fallingsnow.net/2008/04/02/super-is-your-friend/#comment-9722 Wed, 02 Apr 2008 16:23:21 +0000 http://evanphx.wordpress.com/?p=42#comment-9722 Underused indeed. I do avoid it in some cases where I don’t want the module to be tightly coupled to the superclass’s interface. As you say, this is a good way to implement a “plug-in” module which is probably a case where you are working with a specific interface to beging with anyway.

]]> By: Reg Braithwaite http://blog.fallingsnow.net/2008/04/02/super-is-your-friend/#comment-9721 Wed, 02 Apr 2008 14:45:52 +0000 http://evanphx.wordpress.com/?p=42#comment-9721 “if N were included in B directly rather than A, N#go would never be called.”

If wishes were horses then beggars would ride, as they say. But I have always wished that if you called super in a module that it would call the method in its including class. IOW, I have always wished that if class B includes N, you will still get N#go followed by B#go…

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