From: 7stud -- <bbxx789_05ss@...>
Date: 2011-08-26T13:19:49+09:00
Subject: Re: calling a descendant's method

Alexey Muranov wrote in post #1018534:
> I think i've found an explanation: in fact i used a lambda and called a
> class method in the body of the lambda, so probably `self` was bound to
> the current self (the abstract class).
> Sorry again for the bad question.

class Dog
  def self.get_val
    10
  end

  def self.do_stuff
    #self = Dog

    x = 5
    my_lambda = lambda { get_val() + x}  #self.get_val()

    x += 1000
    return my_lambda
  end

end

class Cat
  def self.get_val
    0
  end

  def self.execute_lambda(callable)
    #self = Cat

    x = 0
    puts callable.call  #{get_val() + x}.call()
  end
end

a_lambda = Dog.do_stuff
Cat.execute_lambda(a_lambda)

--output:--
115

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