mv metrics/service to x

chain/route.go

@@ -26,6 +26,7 @@ type Route interface {
 	Nodes() []*Node
 }
 
+// route is a Route without nodes.
 type route struct{}
 
 func (*route) Dial(ctx context.Context, network, address string, opts ...DialOption) (net.Conn, error) {

chain/router.go

@@ -18,10 +18,10 @@ type SockOpts struct {
 }
 
 type RouterOptions struct {
+	Retries    int
+	Timeout    time.Duration
 	IfceName   string
 	SockOpts   *SockOpts
-	Timeout    time.Duration
-	Retries    int
 	Chain      Chainer
 	Resolver   resolver.Resolver
 	HostMapper hosts.HostMapper