Merge pull request #23 from passsy/feature/indexed_setter_operator

New KMutableList indexed set operator []=

lib/src/collection/list_mutable.dart

@@ -112,6 +112,9 @@ class DartMutableList<T>
     return old;
   }
 
+  @override
+  void operator []=(int index, T element) => set(index, element);
+
   @override
   bool removeAll(KIterable<T> elements) {
     var changed = false;

lib/src/k_list_mutable.dart

@@ -54,6 +54,11 @@ abstract class KMutableList<T>
   @nullable
   T set(int index, T element);
 
+  /**
+   * Replaces the element at the specified position in this list with the specified element.
+   */
+  void operator []=(int index, T element);
+
   /**
    * Inserts an element into the list at the specified [index].
    */

test/collection/iterable_extensions_test.dart

@@ -32,7 +32,7 @@ void main() {
 
 void testIterable(KIterable<T> Function<T>() emptyIterable,
     KIterable<T> Function<T>(Iterable<T> iterable) iterableOf,
-    {ordered = true}) {
+    {bool ordered = true}) {
   group('any', () {
     test("matches single", () {
       final iterable = iterableOf(["abc", "bcd", "cde"]);

test/collection/list_mutable_test.dart

@@ -83,6 +83,26 @@ void main() {
       expect(list0.hashCode, isNot(equals(list2.hashCode)));
     });
 
+    test("set", () {
+      final list = mutableListOf([1, 2, 3, 4, 5]);
+      list.set(2, 10);
+      expect(list, listOf([1, 2, 10, 4, 5]));
+      list.set(0, 4);
+      expect(list, listOf([4, 2, 10, 4, 5]));
+      list.set(4, 1);
+      expect(list, listOf([4, 2, 10, 4, 1]));
+    });
+
+    test("set operator", () {
+      final list = mutableListOf([1, 2, 3, 4, 5]);
+      list[2] = 10;
+      expect(list, listOf([1, 2, 10, 4, 5]));
+      list[0] = 4;
+      expect(list, listOf([4, 2, 10, 4, 5]));
+      list[4] = 1;
+      expect(list, listOf([4, 2, 10, 4, 1]));
+    });
+
     test("sublist works ", () {
       final list = mutableListOf(["a", "b", "c"]);
       final subList = list.subList(1, 3);