Merge pull request Comcast#430 from armanbilge/topic/socket-address-r…

…esolve

Move `resolve` method to `SocketAddress`

jvm-native/src/main/scala/com/comcast/ip4s/SocketAddressPlatform.scala

@@ -17,7 +17,6 @@
 package com.comcast.ip4s
 
 import cats.Applicative
-import cats.syntax.all._
 
 import java.net.InetSocketAddress
 
@@ -30,15 +29,14 @@ private[ip4s] trait SocketAddressPlatform[+A <: Host] {
 }
 
 private[ip4s] trait SocketAddressCompanionPlatform {
-  implicit class ResolveOps(private val self: SocketAddress[Host]) {
+  // bincompat
+  @deprecated("resolve is now defined on SocketAddress", "3.2.1")
+  def ResolveOps(self: SocketAddress[Host]): ResolveOps = new ResolveOps(self)
+  @deprecated("resolve is now defined on SocketAddress", "3.2.1")
+  class ResolveOps(private val self: SocketAddress[Host]) {
 
     /** Resolves this `SocketAddress[Hostname]` to a `SocketAddress[IpAddress]`. */
-    def resolve[F[_]: Dns: Applicative]: F[SocketAddress[IpAddress]] =
-      self.host match {
-        case ip: IpAddress      => Applicative[F].pure(SocketAddress(ip, self.port))
-        case hostname: Hostname => Dns[F].resolve(hostname).map(ip => SocketAddress(ip, self.port))
-        case idn: IDN           => Dns[F].resolve(idn.hostname).map(ip => SocketAddress(ip, self.port))
-      }
+    def resolve[F[_]: Dns: Applicative]: F[SocketAddress[IpAddress]] = self.resolve
   }
 
   /** Converts an `InetSocketAddress` to a `SocketAddress[IpAddress]`. */

shared/src/main/scala/com/comcast/ip4s/SocketAddress.scala

@@ -16,7 +16,8 @@
 
 package com.comcast.ip4s
 
-import cats.{Order, Show}
+import cats.{Applicative, Order, Show}
+import cats.syntax.all._
 
 /** An IP address of the specified type and a port number. Used to describe the source or destination of a socket.
   */
@@ -26,6 +27,10 @@ final case class SocketAddress[+A <: Host](host: A, port: Port) extends SocketAd
       case _: Ipv6Address => s"[$host]:$port"
       case _              => s"$host:$port"
     }
+
+  /** Resolves this `SocketAddress[Hostname]` to a `SocketAddress[IpAddress]`. */
+  final def resolve[F[_]: Dns: Applicative]: F[SocketAddress[IpAddress]] =
+    host.resolve.map(SocketAddress(_, port))
 }
 
 object SocketAddress extends SocketAddressCompanionPlatform {