diff options
author | Adriaan Moors <adriaan.moors@epfl.ch> | 2012-07-22 10:16:27 -0700 |
---|---|---|
committer | Adriaan Moors <adriaan.moors@epfl.ch> | 2012-07-22 10:16:27 -0700 |
commit | 3813296892238cbaf803bf8e22b02541aaad080c (patch) | |
tree | 60895ed66f7a536b1f8f97ebcf1c13bc12b3c13e | |
parent | fa4c1de6e7dc5e5703ccf822c5815da9e8ae47ed (diff) | |
parent | 1413713bddd1d14e9cb51ca5b3f2d10f82000b6e (diff) | |
download | scala-3813296892238cbaf803bf8e22b02541aaad080c.tar.gz scala-3813296892238cbaf803bf8e22b02541aaad080c.tar.bz2 scala-3813296892238cbaf803bf8e22b02541aaad080c.zip |
Merge pull request #972 from adriaanm/ticket-6089
SI-6089 test file for pt2
-rw-r--r-- | test/files/pos/t6089b.scala | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/files/pos/t6089b.scala b/test/files/pos/t6089b.scala new file mode 100644 index 0000000000..ff7ca157eb --- /dev/null +++ b/test/files/pos/t6089b.scala @@ -0,0 +1,18 @@ +// this crazy code simply tries to nest pattern matches so that the last call is in a tricky-to-determine +// tail position (my initial tightenign of tailpos detection for SI-6089 ruled this out) +class BKTree { + @annotation.tailrec + final def -?-[AA](a: AA): Boolean = this match { + case BKTreeEmpty => false + case BKTreeNode(v) => { + val d = 1 + d == 0 || ( Map(1 -> this,2 -> this,3 -> this) get d match { + case None => false + case Some(w) => w -?- a // can tail call here (since || is shortcutting) + }) + } + } +} + +object BKTreeEmpty extends BKTree +case class BKTreeNode[A](v: A) extends BKTree
\ No newline at end of file |