lambda env construct

lambda_env.rb

class Pippo
  attr_accessor :name
    
  def initialize
    greet(&greeter)
  end
    
  def greet &block
    p block.call(self)
  end  
  
  def greeter 
    -> env {        
      env.name = 'Andrea'
    }
  end  
  
end

a = Pippo.new # 'Andrea'