class Passenger::Dependency::Result

def found(filename_or_boolean = nil)
	if filename_or_boolean.nil?
		@found = true
	else
		@found = filename_or_boolean
	end
end

def found?
	return !@found.nil? && @found
end

def found_at
	if @found.is_a?(TrueClass) || @found.is_a?(FalseClass)
		return nil
	else
		return @found
	end
end

def not_found
	found(false)
end