defmodule Aoc2023.Common do
  def stringify(s) when is_binary(s) do s end
  def stringify(n) when is_integer(n) do inspect(n) end
  def stringify(nil), do: "nil"

  def map_nth(tup, n, fun) do
    put_elem(tup, n, fun.(elem(tup, n)))
  end

  defmacro pipe(expr) do
    quote do
      fn (val) -> val |> unquote(expr) end
    end
  end
end