From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2010-02-16T01:50:57+09:00
Subject: Re: Parallel assignments vs. Serial assigments

2010/2/15 Jesús Gabriel y Galán <jgabrielygalan@gmail.com>:
> I think it might be because the parallel assigment creates an array
> under the hood?
>
> class One
>
>  def initialize(first_name, last_name)
>   @first_name = first_name
>   @last_name  = last_name
>  end
>
> end
>
> class Two
>
>  def initialize(first_name, last_name)
>   @first_name, @last_name = first_name, last_name
>  end
> end
>
> class Three
>
>  def initialize(*args)
>   @first_name, @last_name = *args
>  end
> end

I have a class Three cause I was also testing this other form, which
also creates arrays:

GC.disable
puts "Arrays before serial: #{ObjectSpace.each_object(Array){}}"
10000.times { |n| var =  One.new("gavin#{n}", "morrice")}
puts "Arrays after serial: #{ObjectSpace.each_object(Array){}}"
10000.times { |n| var =  Two.new("gavin#{n}", "morrice")}
puts "Arrays after parallel: #{ObjectSpace.each_object(Array){}}"
10000.times { |n| var =  Three.new("gavin#{n}", "morrice")}
puts "Arrays after parallel with array: #{ObjectSpace.each_object(Array){}}"

$ ruby test_parallel_assignment.rb
Arrays before serial: 3589
Arrays after serial: 3589
Arrays after parallel: 13589
Arrays after parallel with array: 23589

Jesus.