Small clean-ups.

3 files changed, 14 insertions, 26 deletions

diff --git a/src/actors/scala/actors/distributed/SystemMessage.scala b/src/actors/scala/actors/distributed/SystemMessage.scala
index 274100f98f..344973e010 100644
--- a/src/actors/scala/actors/distributed/SystemMessage.scala
+++ b/src/actors/scala/actors/distributed/SystemMessage.scala
@@ -16,30 +16,18 @@ abstract class MessageTyper {
   type DataType = Array[Byte]
 }
 
-case class Send(rec: RemotePid, data: MessageTyper#DataType)
-case class NamedSend(sym: Symbol, data: MessageTyper#DataType)
-case class Spawn(replyto: RemotePid, p: String)
-case class SpawnObject(replyto: RemotePid, data: MessageTyper#DataType)
-case class Exit1(from: RemotePid, to: RemotePid, reason: Symbol)
+abstract class SystemMessage
+case class Send(rec: RemotePid, data: MessageTyper#DataType) extends SystemMessage
+case class NamedSend(sym: Symbol, data: MessageTyper#DataType) extends SystemMessage
+case class Spawn(replyto: RemotePid, p: String) extends SystemMessage
+case class SpawnObject(replyto: RemotePid, data: MessageTyper#DataType) extends SystemMessage
+case class Exit1(from: RemotePid, to: RemotePid, reason: Symbol) extends SystemMessage
 
-case class RemotePidReply(res: RemotePid)
-case class Disconnect()
-case class NodeDown()
+case class RemotePidReply(res: RemotePid) extends SystemMessage
+case class Disconnect() extends SystemMessage
+case class NodeDown() extends SystemMessage
 
 // CAUTION: Tells "from" to create a _uni-directional_ link!
-case class Link(from: RemotePid, to: RemotePid)
-case class UnLink(from: RemotePid, to: RemotePid)
-case class ForwardExc(destDesc: ExcHandlerDesc, e: Throwable)
-
-/*
-case class NamedSendRep (ser:Serializer) extends TypeRep[NamedSend](ser) {
-  def serialize(content: NamedSend, w: java.io.Writer): unit = {
-    StringRep(ser).serialize(content.sym.name, w)
-    StringRep(ser).serialize(content.data, w)
-  }
-  def deserialize(r:java.io.Reader): NamedSend = {
-    NamedSend(Symbol(StringRep(ser).deserialize(r)),
-	      StringRep(ser).deserialize(r))
-  }
-}
-*/
+case class Link(from: RemotePid, to: RemotePid) extends SystemMessage
+case class UnLink(from: RemotePid, to: RemotePid) extends SystemMessage
+case class ForwardExc(destDesc: ExcHandlerDesc, e: Throwable) extends SystemMessage
diff --git a/src/actors/scala/actors/gui/Button.scala b/src/actors/scala/actors/gui/Button.scala
index 99b74d27be..59ae64b9d8 100644
--- a/src/actors/scala/actors/gui/Button.scala
+++ b/src/actors/scala/actors/gui/Button.scala
@@ -9,7 +9,7 @@ class Button(val jbutton: JButton) extends Container(jbutton) with SwingComponen
   def this() = this(new JButton())
   def text: String = jbutton.getText()
   def text_=(s: String) = jbutton.setText(s)
- 	def icon: Icon = jbutton.getIcon()
+  def icon: Icon = jbutton.getIcon()
   def icon_=(i: Icon) = jbutton.setIcon(i)
   jbutton.addActionListener {
     new java.awt.event.ActionListener {
diff --git a/src/actors/scala/actors/gui/Frame.scala b/src/actors/scala/actors/gui/Frame.scala
index 10b79f54c3..f5269e3d5f 100644
--- a/src/actors/scala/actors/gui/Frame.scala
+++ b/src/actors/scala/actors/gui/Frame.scala
@@ -9,7 +9,7 @@ class Frame(val jframe: JFrame) extends Container(jframe) with Publisher {
   def title_=(s: String) = jframe.setTitle(s)
   val contents = new Container(jframe.getContentPane())
   private var default_button: Button = null
- 	def defaultButton = default_button
+  def defaultButton = default_button
   def defaultButton_=(b: Button) = { default_button = b; jframe.getRootPane().setDefaultButton(b.jbutton) }
   def pack: this.type = { jframe.pack(); this }
   jframe.addWindowListener {