module ActionDispatch module Journey # :nodoc: # The Routing table. Contains all routes for a system. Routes can be # added to the table by calling Routes#add_route. class Routes # :nodoc: include Enumerable attr_reader :routes, :named_routes def initialize @routes = [] @named_routes = {} @ast = nil @partitioned_routes = nil @simulator = nil end def length @routes.length end alias :size :length def last @routes.last end def each(&block) routes.each(&block) end def clear routes.clear end def partitioned_routes @partitioned_routes ||= routes.partition do |r| r.path.anchored && r.ast.grep(Nodes::Symbol).all?(&:default_regexp?) end end def ast @ast ||= begin asts = partitioned_routes.first.map(&:ast) Nodes::Or.new(asts) unless asts.empty? end end def simulator @simulator ||= begin gtg = GTG::Builder.new(ast).transition_table GTG::Simulator.new(gtg) end end # Add a route to the routing table. def add_route(app, path, conditions, defaults, name = nil) route = Route.new(name, app, path, conditions, defaults) route.precedence = routes.length routes << route named_routes[name] = route if name && !named_routes[name] clear_cache! route end private def clear_cache! @ast = nil @partitioned_routes = nil @simulator = nil end end end end