Ruby global scoping

gistfile1.rb

class Animal
  def dog
    "I'm a dog"
  end
  
  def cat
    "I'm a cat"
  end
  
  def bird
    "I'm a bird"
  end
end

# I want something like this to happend:

animal = Animal.new() do
  dog # => "I'm a dog"
  cat # => "I'm a cat"
  bird # => "I'm a bird"
end

Add this to your animal class:

def initialize(&block)
  instance_eval(&block)
end

What it basically does is, it will run that block on the instance you just created (Animal.new)