From: Joel VanderWerf <vjoel@...>
Date: 2004-07-15T02:16:32+09:00
Subject: Re: 'Initializing' modules

ts wrote:
>>>>>>"A" == Ara T Howard <ahoward@noaa.gov> writes:
> 
> 
> A>    def method(*args, &block)
> A>      ret = super(*args, &block)
> 
>   Same than
> 
>         ret = super

And note that

   ret = super()

is different from

   ret = super

The first one passes no arguments. The second one passes the original 
arguments. In other words, you can explicitly specify the argument list 
by using parens.

But be careful: if the method was called with a block, it will be passed 
to the superclass in both cases. For example:

class A
   def initialize
     yield 3 if block_given?
   end
end

class B < A
   def initialize
     super()
   end
end

B.new {|x| p x}  # ==> 3

One way to explicitly prevent the block from being passed is:

class B < A
   def initialize
     super(&nil)  # or: super() {}
   end
end