Overhaul cluster module

Author: exoego

app/current/src/main/scala/io/scalajs/nodejs/HasFileDescriptor.scala

@@ -0,0 +1,7 @@
+package io.scalajs.nodejs
+
+import scala.scalajs.js
+
+trait HasFileDescriptor extends js.Object {
+  def fd: FileDescriptor
+}

app/current/src/main/scala/io/scalajs/nodejs/HasHandle.scala

@@ -0,0 +1,7 @@
+package io.scalajs.nodejs
+
+import scala.scalajs.js
+
+trait HasHandle extends js.Object {
+  def _handle: js.Any
+}

app/current/src/main/scala/io/scalajs/nodejs/cluster/Address.scala

@@ -1,16 +1,14 @@
 package io.scalajs.nodejs.cluster
 
 import scala.scalajs.js
+import scala.scalajs.js.|
 
-/**
-  * Address
-  */
 @js.native
 trait Address extends js.Object {
 
   def address: String = js.native
 
-  def port: Integer = js.native
+  def port: Int = js.native
 
   /**
     * The addressType is one of:
@@ -19,6 +17,6 @@ trait Address extends js.Object {
     * -1 (unix domain socket)
     * "udp4" or "udp6" (UDP v4 or v6)
     */
-  def addressType: js.Any = js.native
+  def addressType: String | Int = js.native
 
 }

app/current/src/main/scala/io/scalajs/nodejs/cluster/Cluster.scala

@@ -85,15 +85,15 @@ trait Cluster extends IEventEmitter {
     * This can only be called from the master process.
     * @example cluster.disconnect([callback])
     */
-  def disconnect(callback: js.Function = null): Unit = js.native
+  def disconnect(callback: js.Function = js.native): Unit = js.native
 
   /**
     * Spawn a new worker process.
     * This can only be called from the master process.
     * @return a new worker
     * @example cluster.fork([env])
     */
-  def fork(env: js.Any = null): Worker = js.native
+  def fork(env: js.Any = js.native): Worker = js.native
 
   /**
     * setupMaster is used to change the default 'fork' behavior. Once called, the settings will be present in cluster.settings.

app/current/src/main/scala/io/scalajs/nodejs/cluster/ClusterSettings.scala

@@ -1,8 +1,12 @@
 package io.scalajs.nodejs.cluster
 
+import com.thoughtworks.enableIf
+import io.scalajs.JsNumber
+import io.scalajs.nodejs.{GID, UID}
 import io.scalajs.util.ScalaJsHelper._
 
 import scala.scalajs.js
+import scala.scalajs.js.|
 
 /**
   * Cluster Settings
@@ -11,35 +15,55 @@ import scala.scalajs.js
 trait ClusterSettings extends js.Object {
 
   /** <Array> list of string arguments passed to the Node.js executable. (Default=process.execArgv) */
-  var execArgv: js.Array[js.Any] = js.native
+  var execArgv: js.Array[String] = js.native
 
   /** <String> file path to worker file. (Default=process.argv[1]) */
   var exec: String = js.native
 
   /** <Array> string arguments passed to worker. (Default=process.argv.slice(2)) */
-  var args: js.Array[js.Any] = js.native
+  var args: js.Array[String] = js.native
 
   /** <Boolean> whether or not to send output to parent's stdio. (Default=false) */
   var silent: Boolean = js.native
 
   /** <Number> Sets the user identity of the process. (See setuid(2).) */
-  var uid: Integer = js.native
+  var uid: UID = js.native
 
-  /* <Number> Sets the group identity of the process. (See setgid(2).) */
-  var gid: Integer = js.native
+  /** <Number> Sets the group identity of the process. (See setgid(2).) */
+  var gid: GID = js.native
+
+  var stdio: js.Array[js.Any] = js.native
+
+  var inspectPort: JsNumber | js.Function = js.native
+
+  @enableIf(io.scalajs.nodejs.CompilerSwitches.gteNodeJs10)
+  var cwd: String = js.native
+
+  @enableIf(io.scalajs.nodejs.CompilerSwitches.gteNodeJs10)
+  var windowsHide: Boolean = js.native
 }
 
 /**
   * Cluster Settings Companion
   */
 object ClusterSettings {
-
-  def apply(exec: String = null, args: js.Array[js.Any] = null, silent: Boolean = false): ClusterSettings = {
-    val settings = New[ClusterSettings]
+  def apply(execArgv: js.Array[String] = null,
+            exec: String = null,
+            args: js.Array[String] = null,
+            silent: Boolean = false,
+            stdio: js.Array[js.Any] = null,
+            inspectPort: JsNumber | js.Function = null,
+            cwd: String = null,
+            windowsHide: Boolean = false): ClusterSettings = {
+    val settings = js.Dynamic.literal()
+    settings.execArgv = execArgv
     settings.exec = exec
     settings.args = args
     settings.silent = silent
-    settings
+    settings.stdio = stdio
+    settings.inspectPort = inspectPort
+    settings.cwd = cwd
+    settings.windowsHide = windowsHide
+    settings.asInstanceOf[ClusterSettings]
   }
-
 }

app/current/src/main/scala/io/scalajs/nodejs/cluster/Worker.scala

@@ -1,6 +1,7 @@
 package io.scalajs.nodejs.cluster
 
-import io.scalajs.nodejs.Process
+import io.scalajs.nodejs.Handle
+import io.scalajs.nodejs.child_process.ChildProcess
 import io.scalajs.nodejs.events.IEventEmitter
 
 import scala.scalajs.js
@@ -22,13 +23,13 @@ trait Worker extends IEventEmitter {
     * The boolean worker.exitedAfterDisconnect lets you distinguish between voluntary and accidental exit, the master
     * may choose not to respawn a worker based on this value.
     */
-  def exitedAfterDisconnect: Boolean = js.native
+  def exitedAfterDisconnect: js.UndefOr[Boolean] = js.native
 
   /**
     * Each new worker is given its own unique id, this id is stored in the id.
     * While a worker is alive, this is the key that indexes it in cluster.workers
     */
-  def id: Integer = js.native
+  def id: Int = js.native
 
   /**
     * All workers are created using child_process.fork(), the returned object from this function is stored as .process.
@@ -37,7 +38,7 @@ trait Worker extends IEventEmitter {
     * Note that workers will call process.exit(0) if the 'disconnect' event occurs on process and .exitedAfterDisconnect
     * is not true. This protects against accidental disconnection.
     */
-  def process: Process = js.native
+  def process: ChildProcess = js.native
 
   /**
     * An alias to worker.exitedAfterDisconnect.
@@ -100,30 +101,14 @@ trait Worker extends IEventEmitter {
     * @param signal the name of the kill signal to send to the worker process.
     * @example kill([signal='SIGTERM'])
     */
-  def kill(signal: String = null): Unit = js.native
+  def kill(signal: String = js.native): Unit = js.native
 
   /**
     * Send a message to a worker or master, optionally with a handle.
     * In the master this sends a message to a specific worker. It is identical to ChildProcess.send().
     * In a worker this sends a message to the master. It is identical to process.send().
     * @example worker.send(message[, sendHandle][, callback])
     */
-  def send(message: Message, sendHandle: js.Function, callback: js.Function): Unit = js.native
-
-  /**
-    * Send a message to a worker or master, optionally with a handle.
-    * In the master this sends a message to a specific worker. It is identical to ChildProcess.send().
-    * In a worker this sends a message to the master. It is identical to process.send().
-    * @example worker.send(message[, sendHandle][, callback])
-    */
-  def send(message: Message, callback: js.Function): Unit = js.native
-
-  /**
-    * Send a message to a worker or master, optionally with a handle.
-    * In the master this sends a message to a specific worker. It is identical to ChildProcess.send().
-    * In a worker this sends a message to the master. It is identical to process.send().
-    * @example worker.send(message[, sendHandle][, callback])
-    */
-  def send(message: Message): Unit = js.native
+  def send(message: Message, sendHandle: Handle = js.native, callback: js.Function = js.native): Unit = js.native
 
 }

app/current/src/main/scala/io/scalajs/nodejs/cluster/package.scala

@@ -1,6 +1,7 @@
 package io.scalajs.nodejs
 
 import io.scalajs.nodejs
+import io.scalajs.nodejs.cluster.Worker
 import io.scalajs.util.PromiseHelper._
 
 import scala.concurrent.Future
@@ -21,7 +22,7 @@ package object cluster {
     * Cluster Events
     * @param cluster the given [[Cluster cluster]]
     */
-  implicit class ClusterEvents(val cluster: Cluster) extends AnyVal {
+  implicit final class ClusterEvents(private val cluster: Cluster) extends AnyVal {
 
     /**
       * Emitted after the worker IPC channel has disconnected. This can occur when a worker exits gracefully, is killed,
@@ -32,7 +33,7 @@ package object cluster {
       * @param callback the event handler
       */
     @inline
-    def onDisconnect(callback: Worker => Any): cluster.type = cluster.on("disconnect", callback)
+    def onDisconnect(callback: Worker => Any): Cluster = cluster.on("disconnect", callback)
 
     /**
       * Similar to the cluster.on('exit') event, but specific to this worker.
@@ -44,15 +45,15 @@ package object cluster {
       *                 </ul>
       */
     @inline
-    def onExit(callback: (Worker, Int, String) => Any): cluster.type = cluster.on("exit", callback)
+    def onExit(callback: (Worker, Int, String) => Any): Cluster = cluster.on("exit", callback)
 
     /**
       * When a new worker is forked the cluster module will emit a 'fork' event. This can be used to log worker activity,
       * and create your own timeout.
       * @param callback the event handler
       */
     @inline
-    def onFork(callback: Worker => Any): cluster.type = cluster.on("fork", callback)
+    def onFork(callback: Worker => Any): Cluster = cluster.on("fork", callback)
 
     /**
       * After calling listen() from a worker, when the 'listening' event is emitted on the server, a 'listening' event
@@ -64,7 +65,7 @@ package object cluster {
       * @param callback the event handler
       */
     @inline
-    def onListening(callback: (Worker, Address) => Any): cluster.type = cluster.on("listening", callback)
+    def onListening(callback: (Worker, Address) => Any): Cluster = cluster.on("listening", callback)
 
     /**
       * Emitted when any worker receives a message.
@@ -75,7 +76,7 @@ package object cluster {
       * @param callback the event handler
       */
     @inline
-    def onMessage(callback: (Worker, Message, js.Any) => Any): cluster.type = cluster.on("message", callback)
+    def onMessage(callback: (Worker, Message, js.Any) => Any): Cluster = cluster.on("message", callback)
 
     /**
       * After forking a new worker, the worker should respond with an online message. When the master receives an online
@@ -84,7 +85,7 @@ package object cluster {
       * @param callback the event handler
       */
     @inline
-    def onOnline(callback: Worker => Any): cluster.type = cluster.on("online", callback)
+    def onOnline(callback: Worker => Any): Cluster = cluster.on("online", callback)
 
     /**
       * Emitted every time .setupMaster() is called.
@@ -95,7 +96,7 @@ package object cluster {
       * @param callback the event handler
       */
     @inline
-    def onSetup(callback: ClusterSettings => Any): cluster.type = cluster.on("setup", callback)
+    def onSetup(callback: ClusterSettings => Any): Cluster = cluster.on("setup", callback)
 
   }
 
@@ -107,7 +108,7 @@ package object cluster {
     * Worker Events and Extensions
     * @param worker the given [[Worker worker]]
     */
-  implicit class WorkerEvents(val worker: Worker) extends AnyVal {
+  implicit final class WorkerEvents(private val worker: Worker) extends AnyVal {
 
     /////////////////////////////////////////////////////////////////////////////////
     //      Worker Extensions
@@ -131,15 +132,15 @@ package object cluster {
       * @param callback the event handler
       */
     @inline
-    def onDisconnect(callback: () => Any): worker.type = worker.on("disconnect", callback)
+    def onDisconnect(callback: () => Any): Worker = worker.on("disconnect", callback)
 
     /**
       * This event is the same as the one provided by child_process.fork().
       * In a worker you can also use process.on('error').
       * @param callback the error handler
       */
     @inline
-    def onError(callback: nodejs.Error => Any): worker.type = worker.on("error", callback)
+    def onError(callback: nodejs.Error => Any): Worker = worker.on("error", callback)
 
     /**
       * Similar to the cluster.on('exit') event, but specific to this worker.
@@ -151,14 +152,14 @@ package object cluster {
       *                 </ul>
       */
     @inline
-    def onExit(callback: (Worker, Int, String) => Any): worker.type = worker.on("exit", callback)
+    def onExit(callback: (Worker, Int, String) => Any): Worker = worker.on("exit", callback)
 
     /**
       * Similar to the cluster.on('listening') event, but specific to this worker.
       * @param callback the event handler
       */
     @inline
-    def onListening(callback: Address => Any): worker.type = worker.on("listening", callback)
+    def onListening(callback: Address => Any): Worker = worker.on("listening", callback)
 
     /**
       * Similar to the cluster.on('message') event, but specific to this worker.
@@ -167,14 +168,14 @@ package object cluster {
       * @param callback the event handler
       */
     @inline
-    def onMessage(callback: Message => Any): worker.type = worker.on("message", callback)
+    def onMessage(callback: Message => Any): Worker = worker.on("message", callback)
 
     /**
       * Similar to the cluster.on('online') event, but specific to this worker.
       * @param callback the event handler
       */
     @inline
-    def onOnline(callback: () => Any): worker.type = worker.on("online", callback)
+    def onOnline(callback: () => Any): Worker = worker.on("online", callback)
 
   }
 

app/current/src/main/scala/io/scalajs/nodejs/net/Socket.scala

@@ -15,7 +15,7 @@ import scala.scalajs.js.|
   */
 @js.native
 @JSImport("net", "Socket")
-class Socket(options: SocketOptions | RawOptions = js.native) extends IDuplex {
+class Socket(options: SocketOptions | RawOptions = js.native) extends IDuplex with HasHandle {
 
   /////////////////////////////////////////////////////////////////////////////////
   //      Properties
@@ -218,6 +218,8 @@ class Socket(options: SocketOptions | RawOptions = js.native) extends IDuplex {
     */
   def unref(): this.type = js.native
 
+  // TODO: test me
+  override def _handle: js.Any = js.native
 }
 
 /**

app/current/src/main/scala/io/scalajs/nodejs/package.scala

@@ -45,6 +45,9 @@ package object nodejs {
 
   type UID = Int
 
+  // The handle object can be either a server, a socket (anything with an underlying _handle member), or an object with an fd member that is a valid file descriptor.
+  type Handle = js.Function | HasHandle | HasFileDescriptor
+
   /////////////////////////////////////////////////////////////////////////////////
   //      Built-in Properties
   /////////////////////////////////////////////////////////////////////////////////

core/src/main/scala/io/scalajs/util/ScalaJsHelper.scala

@@ -22,9 +22,6 @@ object ScalaJsHelper {
   @inline
   def isDefined(obj: js.Any): Boolean = obj != null && !js.isUndefined(obj)
 
-  @inline
-  def New[T <: js.Any]: T = new js.Object().asInstanceOf[T]
-
   ////////////////////////////////////////////////////////////////////////
   //    Implicit Definitions and Classes
   ////////////////////////////////////////////////////////////////////////