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Diffstat (limited to 'tests/run/view-headoption.scala')
-rw-r--r-- | tests/run/view-headoption.scala | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/run/view-headoption.scala b/tests/run/view-headoption.scala new file mode 100644 index 000000000..659c7e6b8 --- /dev/null +++ b/tests/run/view-headoption.scala @@ -0,0 +1,18 @@ +object Test { + val failer = () => { println("fail") ; None } + val succeeder = () => { println("success") ; Some(5) } + val fs = List(failer, succeeder, failer, failer, succeeder, failer, failer, failer, succeeder) + + def f0 = fs.view flatMap (f => f()) + def f1 = f0.headOption + def f2 = f0.head + def f3 = f0.lastOption + def f4 = f0.last + + def main(args: Array[String]): Unit = { + println("f1: " + f1) + println("f2: " + f2) + println("f3: " + f3) + println("f4: " + f4) + } +} |