class Async::HTTP::Response

def self.[](status, headers = {}, body = [])
	body = Body::Buffered.wrap(body)
	
	self.new(nil, status, nil, headers, body)
end

def self.for_exception(exception)
	Async::HTTP::Response[500, {'content-type' => 'text/plain'}, ["#{exception.class}: #{exception.message}"]]
end

def continue?
	status == 100
end

def failure?
	status >= 400 && status < 600
end

def preserve_method?
	status == 307 || status == 308
end

def redirection?
	status >= 300 && status < 400
end

def success?
	status >= 200 && status < 300
end