Add setAll, insertAll, replaceRange and fillRange.

sdk/lib/collection/collections.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dart.collection;
 
 /**
  * This class provides default implementations for Iterables (including Lists).
  *
  * Once Dart receives Mixins it will be replaced with mixin classes.
@@ skipping 240 matching lines @@
 
   static int indexOfList(List list, var element, int start) {
     return Arrays.indexOf(list, element, start, list.length);
   }
 
   static int lastIndexOfList(List list, var element, int start) {
     if (start == null) start = list.length - 1;
     return Arrays.lastIndexOf(list, element, start);
   }
 
-  static Iterable getRangeList(List list, int start, int end) {
+  static void _rangeCheck(List list, int start, int end) {
     if (start < 0 || start > list.length) {
       throw new RangeError.range(start, 0, list.length);
     }
     if (end < start || end > list.length) {
       throw new RangeError.range(end, start, list.length);
     }
+  }
+
+  static Iterable getRangeList(List list, int start, int end) {
+    _rangeCheck(list, start, end);
     // The generic type is currently lost. It will be fixed with mixins.
     return new SubListIterable(list, start, end);
   }
 
   static void setRangeList(List list, int start, int end,
                            Iterable from, int skipCount) {
-    if (start < 0 || start > list.length) {
-      throw new RangeError.range(start, 0, list.length);
-    }
-    if (end < start || end > list.length) {
-      throw new RangeError.range(end, start, list.length);
-    }
+    _rangeCheck(list, start, end);
     int length = end - start;
     if (length == 0) return;
 
     if (skipCount < 0) throw new ArgumentError(skipCount);
 
     // TODO(floitsch): Make this accept more.
     List otherList;
     int otherStart;
     if (from is List) {
       otherList = from;
       otherStart = skipCount;
     } else {
       otherList = from.skip(skipCount).toList(growable: false);
       otherStart = 0;
     }
     if (otherStart + length > otherList.length) {
       throw new StateError("Not enough elements");
     }
     Arrays.copy(otherList, otherStart, list, start, length);
   }
 
+  static void replaceRangeList(List list, int start, int end,
+                               Iterable iterable) {
+    _rangeCheck(list, start, end);
+    // TODO(floitsch): optimize this.
+    list.removeRange(start, end);
+    list.insertAll(start, iterable);
+  }
+
+  static void fillRangeList(List list, int start, int end, fillValue) {
+    _rangeCheck(list, start, end);
+    for (int i = start; i < end; i++) {
+      list[i] = fillValue;
+    }
+  }
+
+  static void insertAllList(List list, int index, Iterable iterable) {
+    if (index < 0 || index > list.length) {
+      throw new RangeError.range(index, 0, list.length);
+    }
+    if (iterable is! List && iterable is! Set) {
+      iterable = iterable.toList(growable: false);
+    }
+    int insertionLength = iterable.length;
+    list.length += insertionLength;
+    list.setRange(index + insertionLength, list.length, list, index);
+    for (var element in iterable) {
+      list[index++] = element;
+    }
+  }
+
+  static void setAllList(List list, int index, Iterable iterable) {
+    if (index < 0 || index > list.length) {
+      throw new RangeError.range(index, 0, list.length);
+    }
+    for (var element in iterable) {
+      list[index++] = element;
+    }
+  }
+
   static Map<int, dynamic> asMapList(List l) {
     return new ListMapView(l);
   }
 
   static bool setContainsAll(Set set, Iterable other) {
     for (var element in other) {
       if (!set.contains(element)) return false;
     }
     return true;
   }
@@ skipping 38 matching lines @@
  * The source of the elements may be a [List] or any [Iterable] with
  * efficient [Iterable.length] and [Iterable.elementAt].
  */
 class UnmodifiableListView<E> extends UnmodifiableListBase<E> {
   Iterable<E> _source;
   /** Create an unmodifiable list backed by [source]. */
   UnmodifiableListView(Iterable<E> source) : _source = source;
   int get length => _source.length;
   E operator[](int index) => _source.elementAt(index);
 }