defrecord Person, first_name: nil, last_name: "Dudington" do
  def name record do # huh ?
    "#{record.first_name} #{record.last_name}"
  end
end

defrecord User, name: "José", age: 25

guy = Person.new first_name: "Guy"
guy.name

defmodule ListServer do
  @moduledoc """
  This module provides an easy to use ListServer, useful for keeping
  lists of things.
  """
  use GenServer.Behaviour
  alias Foo.Bar

  ### Public API
  @doc """
  Starts and links a new ListServer, returning {:ok, pid}

  ## Example

    iex> {:ok, pid} = ListServer.start_link

  """
  def start_link do
    :gen_server.start_link({:local, :list}, __MODULE__, [], [])
  end

  ### GenServer API
  def init(list) do
    {:ok, list}
  end

  # Clear the list
  def handle_cast :clear, list do
    {:noreply, []}
  end
end

{:ok, pid} = ListServer.start_link
pid <- {:foo, "bar"}

greeter = fn(x) -> IO.puts "hey #{x}" end
greeter.("Bob")