Method: Emit::OutputGuard#initialize

Defined in:
lib/emit/output_guard.rb

#initialize(argument, message, action = nil) ⇒ OutputGuard

Returns a new instance of OutputGuard.



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# File 'lib/emit/output_guard.rb', line 5

def initialize(argument, message, action=nil)
  case argument
  when OutputGuard
    @channel_end, @message, @action = argument.channel_end, argument.message, argument.action
  when ChannelEndWrite
    @channel_end, @message, @action = argument, message, action
  when Array
    fail "Wrong number of arguments" unless argument.size == 3
    @channel_end, @message, @action = argument
  else
    fail "Unknown output guard type"
  end

  fail "OutputGuard must have a writing channel end." unless ChannelEndWrite === channel_end
  fail "OutputGuard action cannot be nil" if @action.nil?
end