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diplomacy: be more robust using Java introspection

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If an error occures, some objects might only be partially initialized.
We want to still be able to get nice names for error messages.
This commit is contained in:
Wesley W. Terpstra 2017-01-30 14:25:12 -08:00
parent 280af9684b
commit dc66c8857f
1 changed files with 8 additions and 3 deletions
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11
src/main/scala/diplomacy/LazyModule.scala
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@ -27,10 +27,15 @@ abstract class LazyModule()(implicit val p: Parameters)
m.getName != "children"
}.flatMap { m =>
if (classOf[LazyModule].isAssignableFrom(m.getReturnType)) {
Seq((m.getName, m.invoke(this)))
val obj = m.invoke(this)
if (obj eq null) Seq() else Seq((m.getName, obj))
} else if (classOf[Seq[LazyModule]].isAssignableFrom(m.getReturnType)) {
m.invoke(this).asInstanceOf[Seq[Object]].zipWithIndex.map { case (l, i) =>
(m.getName + "_" + i, l)
val obj = m.invoke(this)
if (obj eq null) Seq() else {
val seq = try { obj.asInstanceOf[Seq[Object]] } catch { case _ => null }
if (seq eq null) Seq() else {
seq.zipWithIndex.map { case (l, i) => (m.getName + "_" + i, l) }
}
}
} else Seq()
}