Inserting a dynamic variable using meta programming

Questions & Help Questions
,
1

I am trying to insert a dynamically named variable using the following code:


defmodule Revive do
  defmacro revive(key, val) do
    quote do
      var!(unquote(key)) = unquote(val)
    end
  end
end

require Revive

Revive.revive(:user, "Aku")

Error:

** (ArgumentError) expected a variable to be given to var!, got: :user
    (elixir) lib/kernel.ex:3496: Kernel."MACRO-var!"/3
    (elixir) expanding macro: Kernel.var!/1
    iex:6: (file)
    expanding macro: Revive.revive/2
    iex:6: (file)

Is this even possible in Elixir?