Merge "diagnostic with Java 8" tests with general diagnostic tests

2017-08-01 10:49:08 -07:00
parent 8db736e2b4
commit 770441c212
70 changed files with 346 additions and 458 deletions
@@ -0,0 +1,9 @@
+// FULL_JDK
+
+import java.util.*
+import java.util.stream.Stream
+
+fun <T> Stream<T>?.getIfSingle() =
+        this?.map { Optional.ofNullable(it) }
+        ?.reduce(Optional.empty()) { _, _ -> Optional.empty() }
+        ?.orElse(null) // <<---- should not be an error