chained-alias_method-calls.rb

class Example

  def foo; puts "foo"; end
  def bar; puts "bar"; end

  def foo_with_bar
    foo_without_bar
    bar
  end
end

e = Example.new
e.foo
e.bar
e.foo_with_bar
e.foo_without_bar

class Example
  alias_method :foo_without_bar, :foo
  alias_method :foo, :foo_with_bar
end

e.foo
e.bar
e.foo_with_bar
e.foo_without_bar