Declare required fields in the documentation

common/dialer/router.go

@@ -0,0 +1,31 @@
+package dialer
+
+import (
+	"context"
+	"net"
+
+	"github.com/sagernet/sing-box/adapter"
+	C "github.com/sagernet/sing-box/constant"
+	M "github.com/sagernet/sing/common/metadata"
+	N "github.com/sagernet/sing/common/network"
+)
+
+type RouterDialer struct {
+	router adapter.Router
+}
+
+func NewRouter(router adapter.Router) N.Dialer {
+	return &RouterDialer{router: router}
+}
+
+func (d *RouterDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
+	return d.router.DefaultOutbound(network).DialContext(ctx, network, destination)
+}
+
+func (d *RouterDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
+	return d.router.DefaultOutbound(C.NetworkUDP).ListenPacket(ctx, destination)
+}
+
+func (d *RouterDialer) Upstream() any {
+	return d.router
+}