module Concurrent::ErlangActor::EnvironmentConstants

These constants are useful where the body of an actor is defined. For convenience they are provided in this module for including. @example

include Concurrent::ErlangActor::EnvironmentConstants
actor = Concurrent::ErlangActor.spawn(:on_thread) do
  receive on(Numeric) { |v| v.succ },
          on(ANY) { terminate :bad_message },
          on(TIMEOUT) { terminate :no_message },
          timeout: 1
end