Make Map.plus accept Map out-projected by key type as either operand (receiver or parameter).

#KT-11301 Fixed
2016-03-30 23:01:49 +03:00
parent 0332217b70
commit d5d19f5595
3 changed files with 23 additions and 7 deletions
@@ -22,10 +22,10 @@ public fun <E> HashSet(c: Collection<E>): HashSet<E>
 public fun <E> LinkedHashSet(c: Collection<E>): HashSet<E>
        = LinkedHashSet<E>(c.size).apply { addAll(c) }

-public fun <K, V> HashMap(m: Map<K, V>): HashMap<K, V>
+public fun <K, V> HashMap(m: Map<out K, V>): HashMap<K, V>
        = HashMap<K, V>(m.size).apply { putAll(m) }

-public fun <K, V> LinkedHashMap(m: Map<K, V>): LinkedHashMap<K, V>
+public fun <K, V> LinkedHashMap(m: Map<out K, V>): LinkedHashMap<K, V>
        = LinkedHashMap<K, V>(m.size).apply { putAll(m) }

 public fun <E> ArrayList(c: Collection<E>): ArrayList<E>