From 20cafc969d1ebc4f2497645b9f1d11b9074bc217 Mon Sep 17 00:00:00 2001
From: Rex Kerr <ichoran@gmail.com>
Date: Fri, 21 Nov 2014 15:22:04 -0800
Subject: SI-8951  SeqView and StreamView stack-overflow on negative index
 after flatMap

Checks and throws IndexOutOfBounds now.

No test, caught and checked by scala-collections-laws (line 405 presently).
---
 src/library/scala/collection/SeqViewLike.scala | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/library')

diff --git a/src/library/scala/collection/SeqViewLike.scala b/src/library/scala/collection/SeqViewLike.scala
index e719f19c78..ef6d2272cb 100644
--- a/src/library/scala/collection/SeqViewLike.scala
+++ b/src/library/scala/collection/SeqViewLike.scala
@@ -83,6 +83,7 @@ trait SeqViewLike[+A,
     }
     def length = index(self.length)
     def apply(idx: Int) = {
+      if (idx < 0 || idx >= self.length) throw new IndexOutOfBoundsException(idx.toString)
       val row = findRow(idx, 0, self.length - 1)
       mapping(self(row)).seq.toSeq(idx - index(row))
     }
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