binding() method - Ruby reflection -

binding_ruby_reflection

class Girl
  attr_accessor :age, :height
  def initialize(a, h)
    @age = a
    @height = h
  end
  
  def getBinding
    return binding()# a method defined in Kernel module
  end

  def to_s
    "Age : #{@age}, Height: #{@height}"
  end
end
girlfriend = Girl.new(25, 160)
puts girlfriend
#get the value of the instance variable @age stored in the binding of object girlfriend
eval("@age -= 1", girlfriend.getBinding) 
eval("@height += 3", girlfriend.getBinding)
puts girlfriend