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A dependency-free utility library containing 100+ useful functions.

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moar lib atom.ex
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lib/atom.ex 

defmodule Moar.Atom do

  # @related [test](/test/atom_test.exs)



  @moduledoc "Atom-related functions"



  @doc """

  When given a string, converts it to an atom via `String.to_atom/1`. When given an atom, returns it unchanged.



  Useful when you aren't sure ahead of time whether you have a string or an atom and want an atom.

  """

  @spec from_string(atom() | binary()) :: atom()

  def from_string(nil), do: raise(ArgumentError, message: "Unable to convert nil into an atom")

  def from_string(s) when is_binary(s), do: String.to_atom(s)

  def from_string(a) when is_atom(a), do: a



  @doc """

  When given an atom, converts it to a string via `Atom.to_string/1`. When given a string, returns it unchanged.



  Useful when you aren't sure ahead of time whether you have a string or an atom and want a string.

  """

  @spec to_string(atom() | binary()) :: binary()

  def to_string(nil), do: raise(ArgumentError, message: "Unable to convert nil into a string")

  def to_string(a) when is_atom(a), do: Atom.to_string(a)

  def to_string(s) when is_binary(s), do: s

end