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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.Utils.Guards do
   6   @moduledoc """
   7   Project-wide custom guards.
   8   See: https://hexdocs.pm/elixir/master/patterns-and-guards.html#custom-patterns-and-guards-expressions
   9   """
  10
  11   @doc "Checks for non-empty string"
  12   defguard not_empty_string(string) when is_binary(string) and string != ""
  13 end