Merge pull request #1535 from paulp/stream-distinct

Fix SI-6584, Stream#distinct uses too much memory.

1 files changed, 16 insertions, 0 deletions

diff --git a/test/files/run/t6584.scala b/test/files/run/t6584.scala
new file mode 100644
index 0000000000..24c236ef35
--- /dev/null
+++ b/test/files/run/t6584.scala
@@ -0,0 +1,16 @@
+object Test {
+  def main(args: Array[String]): Unit = {
+    val size = 100 * 1024
+    val doubled = (1 to size) ++ (1 to size)
+
+    println("Array: " + Array.tabulate(size)(x => x).distinct.size)
+    println("Vector: " + Vector.tabulate(size)(x => x).distinct.size)
+    println("List: " + List.tabulate(size)(x => x).distinct.size)
+    println("Stream: " + Stream.tabulate(size)(x => x).distinct.size)
+
+    println("Array: " + doubled.toArray.distinct.size)
+    println("Vector: " + doubled.toVector.distinct.size)
+    println("List: " + doubled.toList.distinct.size)
+    println("Stream: " + doubled.toStream.distinct.size)
+  }
+}