class Console::Output::Failure

A wrapper for outputting failure messages, which can include exceptions.

def call(subject = nil, *arguments, exception: nil, **options, &block)

@parameter block [Proc] An optional block to pass to the output.
@parameter options [Hash] Additional options to pass to the output.
@parameter exception [Exception] The exception to output.
@parameter arguments [Array] The arguments to output.
@parameter subject [String] The subject of the message.

The exception must be either the last argument or passed as an option. 
def call(subject = nil, *arguments, exception: nil, **options, &block)
	if exception.nil?
		last = arguments.last
		if last.is_a?(Exception)
			options[:event] = Event::Failure.for(last)
		end
	elsif exception.is_a?(Exception)
		options[:event] = Event::Failure.for(exception)
	else
		# We don't know what this is, so we just pass it through:
		options[:exception] = exception
	end
	
	super(subject, *arguments, **options, &block)
end

def initialize(output, **options)

Create a new failure output wrapper. 
def initialize(output, **options)
	super(output, **options)
end