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-rw-r--r--tests/untried/neg/t6526.scala41
1 files changed, 41 insertions, 0 deletions
diff --git a/tests/untried/neg/t6526.scala b/tests/untried/neg/t6526.scala
new file mode 100644
index 000000000..0bc249aa9
--- /dev/null
+++ b/tests/untried/neg/t6526.scala
@@ -0,0 +1,41 @@
+import scala.annotation.tailrec
+
+class TailRec {
+ def bar(f: => Any) = ""
+
+ // transform the qualifier of a Select
+ bar {
+ @tailrec def inner(i: Int): Int = 1 + inner(i)
+ inner(0)
+ }.length
+
+ // transform the body of a function
+ () => {
+ @tailrec def inner(i: Int): Int = 1 + inner(i)
+ inner(0)
+ }
+
+ // transform the qualifier of a Select
+ {
+ @tailrec def inner(i: Int): Int = 1 + inner(i)
+ inner(0)
+ ""
+ }.length
+
+ // The receiver of a tail recursive call must itself be transformed
+ object X {
+ @tailrec // okay, all other annotated methods should fail.
+ def foo: Any = {
+ {
+ @tailrec def inner(i: Int): Int = 1 + inner(i)
+ inner(0)
+ this
+ }.foo
+ }
+ }
+
+ Some(new AnyRef) map { phooie =>
+ @tailrec
+ def inner(i: Int): Int = 1 + inner(i)
+ } getOrElse 42
+}