Implement getRange (returning an Iterable).

sdk/lib/html/dart2js/html_dart2js.dart

Index: sdk/lib/html/dart2js/html_dart2js.dart
diff --git a/sdk/lib/html/dart2js/html_dart2js.dart b/sdk/lib/html/dart2js/html_dart2js.dart
index a29d6436a49a21a6c47211b133dee4e94d328d71..5ddf360aab91ab9f61b85dbb714ead34826f8284 100644
--- a/sdk/lib/html/dart2js/html_dart2js.dart
+++ b/sdk/lib/html/dart2js/html_dart2js.dart
@@ -6986,14 +6986,14 @@ class DomMimeTypeArray implements JavaScriptIndexingBehavior, List<DomMimeType>
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<DomMimeType> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<DomMimeType> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <DomMimeType>[]);
   }
 
-  List<DomMimeType> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, DomMimeType> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -7261,14 +7261,14 @@ class DomPluginArray implements JavaScriptIndexingBehavior, List<DomPlugin> nati
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<DomPlugin> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<DomPlugin> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <DomPlugin>[]);
   }
 
-  List<DomPlugin> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, DomPlugin> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -7613,14 +7613,14 @@ class DomStringList implements JavaScriptIndexingBehavior, List<String> native "
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<String> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<String> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <String>[]);
   }
 
-  List<String> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, String> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -7884,14 +7884,15 @@ class _ChildrenElementList extends ListBase<Element> {
     throw new UnimplementedError();
   }
 
+  Iterable getRange(int start, int end)  {
+    throw new UnimplementedError();
+  }
+
   List sublist(int start, [int end]) {
     if (end == null) end = length;
     return new _FrozenElementList._wrap(Lists.getRange(this, start, end, []));
   }
 
-  List getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   int indexOf(Element element, [int start = 0]) {
     return Lists.indexOf(this, element, start, this.length);
   }
@@ -10374,14 +10375,14 @@ class FileList implements JavaScriptIndexingBehavior, List<File> native "*FileLi
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<File> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<File> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <File>[]);
   }
 
-  List<File> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, File> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -10871,14 +10872,14 @@ class Float32Array extends ArrayBufferView implements JavaScriptIndexingBehavior
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<num> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<num> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <num>[]);
   }
 
-  List<num> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, num> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -11110,14 +11111,14 @@ class Float64Array extends ArrayBufferView implements JavaScriptIndexingBehavior
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<num> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<num> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <num>[]);
   }
 
-  List<num> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, num> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -11769,14 +11770,14 @@ class HtmlAllCollection implements JavaScriptIndexingBehavior, List<Node> native
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<Node> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<Node> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <Node>[]);
   }
 
-  List<Node> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, Node> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -11997,14 +11998,14 @@ class HtmlCollection implements JavaScriptIndexingBehavior, List<Node> native "*
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<Node> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<Node> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <Node>[]);
   }
 
-  List<Node> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, Node> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -14044,14 +14045,14 @@ class Int16Array extends ArrayBufferView implements JavaScriptIndexingBehavior,
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<int> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<int> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <int>[]);
   }
 
-  List<int> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, int> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -14283,14 +14284,14 @@ class Int32Array extends ArrayBufferView implements JavaScriptIndexingBehavior,
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<int> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<int> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <int>[]);
   }
 
-  List<int> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, int> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -14522,14 +14523,14 @@ class Int8Array extends ArrayBufferView implements JavaScriptIndexingBehavior, L
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<int> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<int> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <int>[]);
   }
 
-  List<int> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, int> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -16978,14 +16979,16 @@ class _ChildNodeListLazy extends ListBase<Node> {
     throw new UnsupportedError(
         "Cannot insertRange on immutable List.");
   }
+
+  Iterable<Node> getRange(int start, int end) {
+    throw new UnimplementedError("NodeList.getRange");
+  }
+
   List<Node> sublist(int start, [int end]) {
     if (end == null) end == length;
     return Lists.getRange(this, start, end, <Node>[]);
   }
 
-  List<Node> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   String toString() {
     StringBuffer buffer = new StringBuffer('[');
     buffer.writeAll(this, ', ');
@@ -17556,14 +17559,14 @@ class NodeList implements JavaScriptIndexingBehavior, List<Node> native "*NodeLi
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<Node> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<Node> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <Node>[]);
   }
 
-  List<Node> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, Node> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -19866,14 +19869,14 @@ class SourceBufferList extends EventTarget implements JavaScriptIndexingBehavior
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<SourceBuffer> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<SourceBuffer> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <SourceBuffer>[]);
   }
 
-  List<SourceBuffer> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, SourceBuffer> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -20167,14 +20170,14 @@ class SpeechGrammarList implements JavaScriptIndexingBehavior, List<SpeechGramma
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<SpeechGrammar> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<SpeechGrammar> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <SpeechGrammar>[]);
   }
 
-  List<SpeechGrammar> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, SpeechGrammar> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -21631,14 +21634,14 @@ class TextTrackCueList implements List<TextTrackCue>, JavaScriptIndexingBehavior
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<TextTrackCue> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<TextTrackCue> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <TextTrackCue>[]);
   }
 
-  List<TextTrackCue> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, TextTrackCue> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -21857,14 +21860,14 @@ class TextTrackList extends EventTarget implements JavaScriptIndexingBehavior, L
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<TextTrack> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<TextTrack> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <TextTrack>[]);
   }
 
-  List<TextTrack> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, TextTrack> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -22309,14 +22312,14 @@ class TouchList implements JavaScriptIndexingBehavior, List<Touch> native "*Touc
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<Touch> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<Touch> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <Touch>[]);
   }
 
-  List<Touch> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, Touch> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -22798,14 +22801,14 @@ class Uint16Array extends ArrayBufferView implements JavaScriptIndexingBehavior,
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<int> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<int> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <int>[]);
   }
 
-  List<int> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, int> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -23037,14 +23040,14 @@ class Uint32Array extends ArrayBufferView implements JavaScriptIndexingBehavior,
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<int> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<int> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <int>[]);
   }
 
-  List<int> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, int> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -23276,14 +23279,14 @@ class Uint8Array extends ArrayBufferView implements JavaScriptIndexingBehavior,
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<int> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<int> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <int>[]);
   }
 
-  List<int> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, int> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -23512,14 +23515,14 @@ class Uint8ClampedArray extends Uint8Array implements JavaScriptIndexingBehavior
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<int> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<int> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <int>[]);
   }
 
-  List<int> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, int> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -25799,14 +25802,14 @@ class _ClientRectList implements JavaScriptIndexingBehavior, List<Rect> native "
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<Rect> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<Rect> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <Rect>[]);
   }
 
-  List<Rect> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, Rect> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -26026,14 +26029,14 @@ class _CssRuleList implements JavaScriptIndexingBehavior, List<CssRule> native "
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<CssRule> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<CssRule> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <CssRule>[]);
   }
 
-  List<CssRule> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, CssRule> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -26244,14 +26247,14 @@ class _CssValueList extends _CSSValue implements JavaScriptIndexingBehavior, Lis
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<_CSSValue> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<_CSSValue> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <_CSSValue>[]);
   }
 
-  List<_CSSValue> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, _CSSValue> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -26530,14 +26533,14 @@ class _EntryArray implements JavaScriptIndexingBehavior, List<Entry> native "*En
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<Entry> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<Entry> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <Entry>[]);
   }
 
-  List<Entry> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, Entry> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -26748,14 +26751,14 @@ class _EntryArraySync implements JavaScriptIndexingBehavior, List<_EntrySync> na
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<_EntrySync> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<_EntrySync> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <_EntrySync>[]);
   }
 
-  List<_EntrySync> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, _EntrySync> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -27009,14 +27012,14 @@ class _GamepadList implements JavaScriptIndexingBehavior, List<Gamepad> native "
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<Gamepad> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<Gamepad> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <Gamepad>[]);
   }
 
-  List<Gamepad> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, Gamepad> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -27290,14 +27293,14 @@ class _NamedNodeMap implements JavaScriptIndexingBehavior, List<Node> native "*N
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<Node> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<Node> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <Node>[]);
   }
 
-  List<Node> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, Node> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -27579,14 +27582,14 @@ class _SpeechInputResultList implements JavaScriptIndexingBehavior, List<SpeechI
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<SpeechInputResult> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<SpeechInputResult> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <SpeechInputResult>[]);
   }
 
-  List<SpeechInputResult> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, SpeechInputResult> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -27797,14 +27800,14 @@ class _SpeechRecognitionResultList implements JavaScriptIndexingBehavior, List<S
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<SpeechRecognitionResult> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<SpeechRecognitionResult> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <SpeechRecognitionResult>[]);
   }
 
-  List<SpeechRecognitionResult> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, SpeechRecognitionResult> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -28015,14 +28018,14 @@ class _StyleSheetList implements JavaScriptIndexingBehavior, List<StyleSheet> na
     throw new UnsupportedError("Cannot insertRange on immutable List.");
   }
 
+  Iterable<StyleSheet> getRange(int start, int end) =>
+    IterableMixinWorkaround.getRangeList(this, start, end);
+
   List<StyleSheet> sublist(int start, [int end]) {
     if (end == null) end = length;
     return Lists.getRange(this, start, end, <StyleSheet>[]);
   }
 
-  List<StyleSheet> getRange(int start, int rangeLength) =>
-      sublist(start, start + rangeLength);
-
   Map<int, StyleSheet> asMap() =>
     IterableMixinWorkaround.asMapList(this);
 
@@ -31154,7 +31157,7 @@ class _WrappedList<E> implements List<E> {
 
   List<E> sublist(int start, [int end]) => _list.sublist(start, end);
 
-  List<E> getRange(int start, int length) => sublist(start, start + length);
+  Iterable<E> getRange(int start, int end) => _list.getRange(start, end);
 
   void setRange(int start, int length, List<E> from, [int startFrom]) {
     _list.setRange(start, length, from, startFrom);