attilapiros commented on a change in pull request #24241:
[SPARK-27323][CORE][SQL][STREAMING] Use Single-Abstract-Method support in Scala
2.12 to simplify code
URL: https://github.com/apache/spark/pull/24241#discussion_r270969881
##########
File path:
core/src/main/scala/org/apache/spark/util/collection/ExternalSorter.scala
##########
@@ -400,13 +395,12 @@ private[spark] class ExternalSorter[K, V, C](
mergeCombiners: (C, C) => C,
comparator: Comparator[K],
totalOrder: Boolean)
- : Iterator[Product2[K, C]] =
- {
+ : Iterator[Product2[K, C]] = {
if (!totalOrder) {
// We only have a partial ordering, e.g. comparing the keys by hash
code, which means that
// multiple distinct keys might be treated as equal by the ordering. To
deal with this, we
// need to read all keys considered equal by the ordering at once and
compare them.
- new Iterator[Iterator[Product2[K, C]]] {
+ val it = new Iterator[Iterator[Product2[K, C]]] {
Review comment:
Nit (more like a question): why a new `val` is introduced here?
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