Minor. Utility moved to a common place

2014-06-06 15:00:11 +04:00
parent 346c491ebd
commit 42aa9e2378
2 changed files with 6 additions and 4 deletions
@@ -79,4 +79,8 @@ public fun <T> Iterable<Iterable<T>>.flatten(): List<T> {
    return flatMapTo(ArrayList<T>(), {it})
 }

-public fun <T: Any> emptyOrSingletonList(item: T?): List<T> = if (item == null) listOf() else listOf(item)
+public fun <T: Any> emptyOrSingletonList(item: T?): List<T> = if (item == null) listOf() else listOf(item)
+
+public fun <T: Any> MutableCollection<T>.addIfNotNull(t: T?) {
+    if (t != null) add(t)
+}