From 9b3d357371d7c2213aad2bad16997a423e32cf0b Mon Sep 17 00:00:00 2001
From: Christian Laakmann <clxris@gmail.com>
Date: Fri, 24 Jan 2014 18:12:45 +0400
Subject: [PATCH] added extension methods MutableCollection#addAll(Iterable)
 and MutableCollection#addAll(Iterator) (#KT-4202 fixed)

---
 .../stdlib/src/kotlin/MutableCollections.kt   | 15 ++++++++++
 .../stdlib/test/MutableCollectionsTest.kt     | 29 +++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 libraries/stdlib/src/kotlin/MutableCollections.kt
 create mode 100644 libraries/stdlib/test/MutableCollectionsTest.kt

diff --git a/libraries/stdlib/src/kotlin/MutableCollections.kt b/libraries/stdlib/src/kotlin/MutableCollections.kt
new file mode 100644
index 00000000000..fccea3c9d21
--- /dev/null
+++ b/libraries/stdlib/src/kotlin/MutableCollections.kt
@@ -0,0 +1,15 @@
+package kotlin
+
+/**
+ * Adds all elements of the given *iterator* to this [[MutableCollection]]
+ */
+public fun <T> MutableCollection<T>.addAll(iterator: Iterator<T>): Unit {
+    for (e in iterator) add(e)
+}
+
+/**
+ * Adds all elements of the given *iterable* to this [[MutableCollection]]
+ */
+public fun <T> MutableCollection<T>.addAll(iterable: Iterable<T>): Unit {
+    for (e in iterable) add(e)
+}
diff --git a/libraries/stdlib/test/MutableCollectionsTest.kt b/libraries/stdlib/test/MutableCollectionsTest.kt
new file mode 100644
index 00000000000..86b33d126db
--- /dev/null
+++ b/libraries/stdlib/test/MutableCollectionsTest.kt
@@ -0,0 +1,29 @@
+package test.collections
+
+import kotlin.test.*
+
+import java.util.*
+
+import org.junit.Test as test
+
+class MutableCollectionTest {
+
+    test fun fromIterable() {
+        val data: Iterable<String> = arrayListOf("foo", "bar")
+
+        val collection = ArrayList<String>()
+        collection.addAll(data)
+
+        assertEquals(data, collection)
+    }
+
+    test fun fromIterator() {
+        val list = arrayListOf("foo", "bar")
+        val collection = ArrayList<String>()
+
+        collection.addAll(list.iterator())
+
+        assertEquals(list, collection)
+    }
+
+}