twelixir.ex

defmodule Twelixir do
  defmacro __using__(_) do
    quote do
      import Kernel, except: [@: 1]
      import Twelixir
    end
  end

  defmacro @({name, _, [message]}) do
    var = Macro.var(name, __MODULE__)

    quote do
      send var!(unquote(var)), unquote(message)
    end
  end
end

defmodule Example do
  use Twelixir

  def run do
    pid = spawn fn ->
      receive do
        {:hello, thing} -> IO.puts "Hi, #{thing}!"
      end
    end

    @pid {:hello, "Twitter"}
  end
end

Example.run