show Incomplete

tasks/Incomplete.scala

@@ -9,4 +9,24 @@ final case class Incomplete(tpe: IValue = Error, message: Option[String] = None,
 
 object Incomplete extends Enumeration {
 	val Skipped, Error = Value
+	def show(i: Incomplete, traces: Boolean): String =
+	{
+		val exceptions = allExceptions(i)
+		val traces = exceptions.map(_.getStackTrace).mkString("\n")
+		val causeStr = if(i.causes.isEmpty) "" else (i.causes.length + " cause(s)")
+		"Incomplete (" + show(i.tpe) + ") " + i.message.getOrElse("") + causeStr + "\n" + traces
+	}
+	def allExceptions(i: Incomplete): Iterable[Throwable] =
+	{
+		val exceptions = IDSet.create[Throwable]
+		val visited = IDSet.create[Incomplete]
+		def visit(inc: Incomplete): Unit =
+			visited.process(inc)( () ) {
+				exceptions ++= inc.directCause.toList
+				inc.causes.foreach(visit)
+			}
+		visit(i)
+		exceptions.all
+	}
+	def show(tpe: Value) = tpe match { case Skipped=> "skipped"; case Error => "error" }
 }