Delegate indexOf and lastIndexOf to List if the Iterable is List.

2015-10-15 19:23:42 +03:00
parent 45d13fafc8
commit c5cd599e30
2 changed files with 16 additions and 35 deletions
@@ -241,6 +241,7 @@ public fun <T> List<T>.getOrNull(index: Int): T? {
 * Returns first index of [element], or -1 if the collection does not contain element.
 */
 public fun <T> Iterable<T>.indexOf(element: T): Int {
+    if (this is List) return this.indexOf(element)
    var index = 0
    for (item in this) {
        if (element == item)
@@ -370,6 +371,7 @@ public inline fun <T> List<T>.last(predicate: (T) -> Boolean): T {
 * Returns last index of [element], or -1 if the collection does not contain element.
 */
 public fun <T> Iterable<T>.lastIndexOf(element: T): Int {
+    if (this is List) return this.lastIndexOf(element)
    var lastIndex = -1
    var index = 0
    for (item in this) {