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A slick websocket client for Phoenix channels

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slipstream lib slipstream signatures.ex
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lib/slipstream/signatures.ex 

defmodule Slipstream.Signatures do

  @moduledoc false



  # a signature in this context is a unique marker attached to a datastructure

  # that allows us to match on it



  # this can either be used to

  # 1. wrap events in a marker that clearly states that it's a slipstream

  #    event

  # 2. match on an event in a receive/2 or function definition expression,

  #    ensuring that the pattern is indeed a slipstream event

  defmacro event(event_pattern) do

    quote do

      {:__slipstream_event__, unquote(event_pattern)}

    end

  end



  # same for commands

  defmacro command(command_pattern) do

    quote do

      {:__slipstream_command__, unquote(command_pattern)}

    end

  end



  # this one is because I feel bad writing :"$gen_call" twice

  defmacro gen_server_call(message_expr, from_expr) do

    quote do

      {:"$gen_call", unquote(from_expr), unquote(message_expr)}

    end

  end

end