First step towards implementing dart:typeddata library.

runtime/lib/typeddata.dart

+// Copyright (c) 2013, 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.
+
+// TODO(asiva): Remove this import of dart:scalarlist when we are ready to
+// drop scalarlist and move this implementation as the default.
+// import 'dart:scalartlist' as sl;
+
+// patch classes for Int8List ..... Float64List and ByteData implementations.
+
+patch class Int8List {
+  /* patch */ factory Int8List(int length) {
+    return new _Int8Array(length);
+  }
+
+  /* patch */ factory Int8List.transferable(int length) {
+    return _newTransferable(length);
+  }
+
+  /* patch */ factory Int8List.view(ByteBuffer buffer,
+                                    [int start = 0, int length]) {
+    return new _Int8ArrayView(buffer, start, length);
+  }
+
+  static _ExternalInt8Array _newTransferable(int length) {
+    return new _ExternalInt8Array(length);
+  }
+}
+
+
+patch class Uint8List {
+  /* patch */ factory Uint8List(int length) {
+    return new _Uint8Array(length);
+  }
+
+  /* patch */ factory Uint8List.transferable(int length) {
+    return _newTransferable(length);
+  }
+
+  /* patch */ factory Uint8List.view(ByteBuffer buffer,
+                                     [int start = 0, int length]) {
+    return new _Uint8ArrayView(buffer, start, length);
+  }
+
+  static _ExternalUint8Array _newTransferable(int length) {
+    return new _ExternalUint8Array(length);
+  }
+}
+
+
+patch class Uint8ClampedList {
+  /* patch */ factory Uint8ClampedList(int length) {
+    return new _Uint8ClampedArray(length);
+  }
+
+  /* patch */ factory Uint8ClampedList.transferable(int length) {
+    return _newTransferable(length);
+  }
+
+  /* patch */ factory Uint8ClampedList.view(ByteBuffer buffer,
+                                            [int start = 0, int length]) {
+    return new _Uint8ClampedArrayView(buffer, start, length);
+  }
+
+  static _ExternalUint8ClampedArray _newTransferable(int length) {
+    return new _ExternalUint8ClampedArray(length);
+  }
+}
+
+
+patch class Int16List {
+  /* patch */ factory Int16List(int length) {
+    return new _Int16Array(length);
+  }
+
+  /* patch */ factory Int16List.transferable(int length) {
+    return _newTransferable(length);
+  }
+
+  /* patch */ factory Int16List.view(ByteBuffer buffer,
+                                     [int start = 0, int length]) {
+    return new _Int16ArrayView(buffer, start, length);
+  }
+
+  static _ExternalInt16Array _newTransferable(int length) {
+    return new _ExternalInt16Array(length);
+  }
+}
+
+
+patch class Uint16List {
+  /* patch */ factory Uint16List(int length) {
+    return new _Uint16Array(length);
+  }
+
+  /* patch */ factory Uint16List.transferable(int length) {
+    return _newTransferable(length);
+  }
+
+  /* patch */ factory Uint16List.view(ByteBuffer buffer,
+                                      [int start = 0, int length]) {
+    return new _Uint16ArrayView(buffer, start, length);
+  }
+
+  static _ExternalUint16Array _newTransferable(int length) {
+    return new _ExternalUint16Array(length);
+  }
+}
+
+
+patch class Int32List {
+  /* patch */ factory Int32List(int length) {
+    return new _Int32Array(length);
+  }
+
+  /* patch */ factory Int32List.transferable(int length) {
+    return _newTransferable(length);
+  }
+
+  /* patch */ factory Int32List.view(ByteBuffer buffer,
+                                     [int start = 0, int length]) {
+    return new _Int32ArrayView(buffer, start, length);
+  }
+
+  static _ExternalInt32Array _newTransferable(int length) {
+    return new _ExternalInt32Array(length);
+  }
+}
+
+
+patch class Uint32List {
+  /* patch */ factory Uint32List(int length) {
+    return new _Uint32Array(length);
+  }
+
+  /* patch */ factory Uint32List.transferable(int length) {
+    return _newTransferable(length);
+  }
+
+  /* patch */ factory Uint32List.view(ByteBuffer buffer,
+                                      [int start = 0, int length]) {
+    return new _Uint32ArrayView(buffer, start, length);
+  }
+
+  static _ExternalUint32Array _newTransferable(int length) {
+    return new _ExternalUint32Array(length);
+  }
+}
+
+
+patch class Int64List {
+  /* patch */ factory Int64List(int length) {
+    return new _Int64Array(length);
+  }
+
+  /* patch */ factory Int64List.transferable(int length) {
+    return _newTransferable(length);
+  }
+
+  /* patch */ factory Int64List.view(ByteBuffer buffer,
+                                     [int start = 0, int length]) {
+    return new _Int64ArrayView(buffer, start, length);
+  }
+
+  static _ExternalInt64Array _newTransferable(int length) {
+    return new _ExternalInt64Array(length);
+  }
+}
+
+
+patch class Uint64List {
+  /* patch */ factory Uint64List(int length) {
+    return new _Uint64Array(length);
+  }
+
+  /* patch */ factory Uint64List.transferable(int length) {
+    return _newTransferable(length);
+  }
+
+  /* patch */ factory Uint64List.view(ByteBuffer buffer,
+                                      [int start = 0, int length]) {
+    return new _Uint64ArrayView(buffer, start, length);
+  }
+
+  static _ExternalUint64Array _newTransferable(int length) {
+    return new _ExternalUint64Array(length);
+  }
+}
+
+
+patch class Float32List {
+  /* patch */ factory Float32List(int length) {
+    return new _Float32Array(length);
+  }
+
+  /* patch */ factory Float32List.transferable(int length) {
+    return _newTransferable(length);
+  }
+
+  /* patch */ factory Float32List.view(ByteBuffer buffer,
+                                       [int start = 0, int length]) {
+    return new _Float32ArrayView(buffer, start, length);
+  }
+
+  static _ExternalFloat32Array _newTransferable(int length) {
+    return new _ExternalFloat32Array(length);
+  }
+}
+
+
+patch class Float64List {
+  /* patch */ factory Float64List(int length) {
+    return new _Float64Array(length);
+  }
+
+  /* patch */ factory Float64List.transferable(int length) {
+    return _newTransferable(length);
+  }
+
+  /* patch */ factory Float64List.view(ByteBuffer buffer,
+                                       [int start = 0, int length]) {
+    return new _Float64ArrayView(buffer, start, length);
+  }
+
+  static _ExternalFloat64Array _newTransferable(int length) {
+    return new _ExternalFloat64Array(length);
+  }
+}
+
+
+patch class ByteData {
+  /* patch */ factory ByteData(int length) {
+    var list = new _Uint8Array(length);
+    return new _ByteDataView(list.buffer);
+  }
+
+  /* patch */ factory ByteData.transferable(int length) {
+    var list = new _Uint8Array.transferable(length);
+    return new _ByteDataView(list.buffer);
+  }
+
+  /* patch */ factory ByteData.view(ByteBuffer buffer,
+                                    [int start = 0, int length]) {
+    if (length == null) {
+      length = buffer.lengthInBytes();
+    }
+    return new _ByteDataView(buffer, start, length);
+  }
+}
+
+
+// Based class for _TypedData that provides common methods for implementing
+// the collection and list interfaces.
+
+abstract class _TypedDataBase {

[Ivan Posva, 2013/02/26 23:26:20]

Shouldn't this be _TypedListBase? As not all implementations of TypedData are
going to inherit from here.

[siva, 2013/02/27 19:51:51]

Renamed it _TypedListBase

On 2013/02/26 23:26:20, Ivan Posva wrote:

+  // Method(s) implementing the Collection interface.
+  bool contains(element) => IterableMixinWorkaround.contains(this, element);
+
+  void forEach(void f(element)) {
+    var len = this.length;
+    for (var i = 0; i < len; i++) {
+      f(this[i]);
+    }
+  }
+
+  Iterable map(f(int element)) {
+    return IterableMixinWorkaround.mapList(this, f);
+  }
+
+  String join([String separator]) {
+    return IterableMixinWorkaround.join(this, separator);
+  }
+
+  dynamic reduce(dynamic initialValue,
+                 dynamic combine(dynamic initialValue, element)) {
+    return IterableMixinWorkaround.reduce(this, initialValue, combine);
+  }
+
+  Collection where(bool f(int element)) {
+    return IterableMixinWorkaround.where(this, f);
+  }
+
+  Iterable expand(Iterable f(int element)) {
+    return IterableMixinWorkaround.expand(this, f);
+  }
+
+  Iterable<int> take(int n) {
+    return IterableMixinWorkaround.takeList(this, n);
+  }
+
+  Iterable<int> takeWhile(bool test(int value)) {
+    return IterableMixinWorkaround.takeWhile(this, test);
+  }
+
+  Iterable<int> skip(int n) {
+    return IterableMixinWorkaround.skipList(this, n);
+  }
+
+  Iterable<int> skipWhile(bool test(int value)) {
+    return IterableMixinWorkaround.skipWhile(this, test);
+  }
+
+  bool every(bool f(element)) {
+    return IterableMixinWorkaround.every(this, f);
+  }
+
+  bool any(bool f(element)) {
+    return IterableMixinWorkaround.any(this, f);
+  }
+
+  int firstMatching(bool test(int value), {int orElse()}) {
+    return IterableMixinWorkaround.firstMatching(this, test, orElse);
+  }
+
+  int lastMatching(bool test(int value), {int orElse()}) {
+    return IterableMixinWorkaround.lastMatchingInList(this, test, orElse);
+  }
+
+  int singleMatching(bool test(int value)) {
+    return IterableMixinWorkaround.singleMatching(this, test);
+  }
+
+  int elementAt(int index) {
+    return this[index];
+  }
+
+  bool get isEmpty {
+    return this.length == 0;
+  }
+
+  int get length {
+    return _length();
+  }
+
+  // Method(s) implementing the List interface.
+
+  set length(newLength) {
+    throw new UnsupportedError(
+        "Cannot resize a non-extendable array");
+  }
+
+  void add(value) {
+    throw new UnsupportedError(
+        "Cannot add to a non-extendable array");
+  }
+
+  void addLast(value) {
+    throw new UnsupportedError(
+        "Cannot add to a non-extendable array");
+  }
+
+  void addAll(Iterable value) {
+    throw new UnsupportedError(
+        "Cannot add to a non-extendable array");
+  }
+
+  void sort([int compare(var a, var b)]) {
+    return IterableMixinWorkaround.sortList(this, compare);
+  }
+
+  int indexOf(element, [int start = 0]) {
+    return Arrays.indexOf(this, element, start, this.length);
+  }
+
+  int lastIndexOf(element, [int start = null]) {
+    if (start == null) start = length - 1;
+    return Arrays.lastIndexOf(this, element, start);
+  }
+
+  void clear() {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  int removeLast() {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void remove(Object element) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void removeAll(Iterable elements) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void retainAll(Iterable elements) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void removeMatching(bool test(int element)) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void retainMatching(bool test(int element)) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  int get first {
+    if (length > 0) return this[0];
+    throw new StateError("No elements");
+  }
+
+  int get last {
+    if (length > 0) return this[length - 1];
+    throw new StateError("No elements");
+  }
+
+  int get single {
+    if (length == 1) return this[0];
+    if (length == 0) throw new StateError("No elements");
+    throw new StateError("More than one element");
+  }
+
+  int min([int compare(int a, int b)]) =>
+    IterableMixinWorkaround.min(this, compare);
+
+  int max([int compare(int a, int b)]) =>
+    IterableMixinWorkaround.max(this, compare);
+
+  void removeRange(int start, int length) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void insertRange(int start, int length, [initialValue]) {
+    throw new UnsupportedError(
+        "Cannot add to a non-extendable array");
+  }
+
+  List<int> toList() {
+    return new List<int>.from(this);
+  }
+
+  Set<int> toSet() {
+    return new Set<int>.from(this);
+  }
+
+
+  // Internal utility methods.
+
+  int _length() {
+    return _array.length;
+  }
+
+  sl.ByteArrayViewable _array;
+}
+
+
+abstract class _TypedData extends _TypedDataBase

[Ivan Posva, 2013/02/26 23:26:20]

ditto

[siva, 2013/02/27 19:51:51]

Renamed _TypedData to _TypedList and _TypedDataBase to _TypedListBase
On 2013/02/26 23:26:20, Ivan Posva wrote:

+                          implements TypedData, ByteBuffer {
+  // Default method implementing parts of the TypedData interface.
+  int offsetInBytes() {
+    return 0;
+  }
+
+  int lengthInBytes() {
+    return _length() * elementSizeInBytes();
+  }
+
+  ByteBuffer get buffer {
+    return this;
+  }
+}
+
+
+class _Int8Array extends _TypedData implements Int8List {
+  // Factory constructors.
+
+  _Int8Array(int length) {
+    _array = new sl.Int8List(length);
+  }
+
+  factory _Int8Array.view(ByteBuffer buffer, [int start = 0, int length]) {
+    if (length == null) {
+      length = buffer.lengthInBytes();
+    }
+    return new _Int8ArrayView(buffer, start, length);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toInt8(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = _new(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _Int8Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 1;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _Uint8Array extends _TypedData implements Uint8List {
+  // Factory constructors.
+
+  _Uint8Array(int length) {
+    _array = new sl.Uint8List(length);
+  }
+
+  factory _Uint8Array.view(ByteBuffer buffer, [int start = 0, int length]) {
+    if (length == null) {
+      length = buffer.lengthInBytes();
+    }
+    return new _Uint8ArrayView(buffer, start, length);
+  }
+
+  // Methods implementing List interface.
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toUint8(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = _new(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _Uint8Array || from is _ExternalUint8Array ||
+        from is _Uint8ClampedArray || from is _ExternalUint8ClampedArray) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+  // Methods implementing Object interface.
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+  // Methods implementing TypedData interface.
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  // Internal utility methods.
+  static const int _BYTES_PER_ELEMENT = 1;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _Uint8ClampedArray extends _TypedData implements Uint8ClampedList {
+  // Factory constructors.
+
+  _Uint8ClampedArray(int length) {
+    _array = new sl.Uint8ClampedList(length);
+  }
+
+  factory _Uint8ClampedArray.view(ByteBuffer buffer,
+                                 [int start = 0, int length]) {
+    if (length == null) {
+      length = buffer.lengthInBytes();
+    }
+    return new _Uint8ClampedArrayView(buffer, start, length);
+  }
+
+  // Methods implementing List interface.
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toClampedUint8(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = _new(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _Uint8Array || from is _ExternalUint8Array ||
+        from is _Uint8ClampedArray || from is _ExternalUint8ClampedArray) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+  // Methods implementing Object interface.
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+  // Methods implementing TypedData interface.
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  // Internal utility methods.
+  static const int _BYTES_PER_ELEMENT = 1;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _Int16Array extends _TypedData implements Int16List {
+  // Factory constructors.
+
+  _Int16Array(int length) {
+    _array = new sl.Int16List(length);
+  }
+
+  factory _Int16Array.view(ByteBuffer buffer, [int start = 0, int length]) {
+    if (length == null) {
+      length = (buffer.lengthInBytes() - start) ~/ _BYTES_PER_ELEMENT;
+    }
+    return new _Int16ArrayView(buffer, start, length);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toInt16(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = _new(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _Int16Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 2;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _Uint16Array extends _TypedData implements Uint16List {
+  // Factory constructors.
+
+  _Uint16Array(int length) {
+    _array = new sl.Uint16List(length);
+  }
+
+  factory _Uint16Array.view(ByteBuffer buffer, [int start = 0, int length]) {
+    if (length == null) {
+      length = (buffer.lengthInBytes() - start) ~/ _BYTES_PER_ELEMENT;
+    }
+    return new _Uint16ArrayView(buffer, start, length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toUint16(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = _new(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _Uint16Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 2;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _Int32Array extends _TypedData implements Int32List {
+  // Factory constructors.
+
+  _Int32Array(int length) {
+    _array = new sl.Int32List(length);
+  }
+
+  factory _Int32Array.view(ByteBuffer buffer, [int start = 0, int length]) {
+    if (length == null) {
+      length = (buffer.lengthInBytes() - start) ~/ _BYTES_PER_ELEMENT;
+    }
+    return new _Int32ArrayView(buffer, start, length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toInt32(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = _new(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _Int32Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 4;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _Uint32Array extends _TypedData implements Uint32List {
+  // Factory constructors.
+
+  _Uint32Array(int length) {
+    _array = new sl.Uint32List(length);
+  }
+
+  factory _Uint32Array.view(ByteBuffer buffer, [int start = 0, int length]) {
+    if (length == null) {
+      length = (buffer.lengthInBytes() - start) ~/ _BYTES_PER_ELEMENT;
+    }
+    return new _Uint32ArrayView(buffer, start, length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toUint32(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = _new(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _Uint32Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 4;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _Int64Array extends _TypedData implements Int64List {
+  // Factory constructors.
+
+  _Int64Array(int length) {
+    _array = new sl.Int64List(length);
+  }
+
+  factory _Int64Array.view(ByteBuffer buffer, [int start = 0, int length]) {
+    if (length == null) {
+      length = (buffer.lengthInBytes() - start) ~/ _BYTES_PER_ELEMENT;
+    }
+    return new _Int64ArrayView(buffer, start, length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toInt64(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = _new(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _Int64Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 8;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _Uint64Array extends _TypedData implements Uint64List {
+  // Factory constructors.
+
+  _Uint64Array(int length) {
+    _array = new sl.Uint64List(length);
+  }
+
+  factory _Uint64Array.view(ByteBuffer buffer, [int start = 0, int length]) {
+    if (length == null) {
+      length = (buffer.lengthInBytes() - start) ~/ _BYTES_PER_ELEMENT;
+    }
+    return new _Uint64ArrayView(buffer, start, length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toUint64(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = _new(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _Uint64Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 8;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _Float32Array extends _TypedData implements Float32List {
+  // Factory constructors.
+
+  _Float32Array(int length) {
+    _array = new sl.Float32List(length);
+  }
+
+  factory _Float32Array.view(ByteBuffer buffer, [int start = 0, int length]) {
+    if (length == null) {
+      length = (buffer.lengthInBytes() - start) ~/ _BYTES_PER_ELEMENT;
+    }
+    return new _Float32ArrayView(buffer, start, length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  double operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, double value) {
+    _setIndexed(index, value);
+  }
+
+  Iterator<double> get iterator {
+    return new _ByteDataIterator<double>(this);
+  }
+
+  List<double> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<double> result = _new(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<double> from, [int startFrom = 0]) {
+    /**
+    if (from is _Float32Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 4;
+
+  double _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, double value) {
+    _array[index] = value;
+  }
+}
+
+
+class _Float64Array extends _TypedData implements Float64List {
+  // Factory constructors.
+
+  _Float64Array(int length) {
+    _array = new sl.Float64List(length);
+  }
+
+  factory _Float64Array.view(ByteBuffer buffer, [int start = 0, int length]) {
+    if (length == null) {
+      length = (buffer.lengthInBytes() - start) ~/ _BYTES_PER_ELEMENT;
+    }
+    return new _Float64ArrayView(buffer, start, length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  double operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, double value) {
+    _setIndexed(index, value);
+  }
+
+  Iterator<double> get iterator {
+    return new _ByteDataIterator<double>(this);
+  }
+
+  List<double> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<double> result = _new(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<double> from, [int startFrom = 0]) {
+    /**
+    if (from is _Float64Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 8;
+
+  double _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, double value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ExternalInt8Array extends _TypedData implements Int8List {
+  // Factory constructors.
+
+  _ExternalInt8Array(int length) {
+    _array = new sl.Int8List.transferable(length);
+  }
+
+
+  // Method(s) implementing the List interface.
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toInt8(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Int8List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _ExternalInt8Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 1;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ExternalUint8Array extends _TypedData implements Uint8List {
+  // Factory constructors.
+
+  _ExternalUint8Array(int length) {
+    _array = new sl.Uint8List.transferable(length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toUint8(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Uint8List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _ExternalUint8Array || from is _Uint8Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 1;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ExternalUint8ClampedArray extends _TypedData implements Uint8ClampedList {
+  // Factory constructors.
+
+  _ExternalUint8ClampedArray(int length) {
+    _array = new sl.Uint8ClampedList.transferable(length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toClampedUint8(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Uint8ClampedList(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _ExternalUint8ClampedArray || from is _Uint8ClampedArray) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 1;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ExternalInt16Array extends _TypedData implements Int16List {
+  // Factory constructors.
+
+  _ExternalInt16Array(int length) {
+    _array = new sl.Int16List.transferable(length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toInt16(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Int16List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _ExternalInt16Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 2;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ExternalUint16Array extends _TypedData implements Uint16List {
+  // Factory constructors.
+
+  _ExternalUint16Array(int length) {
+    _array = new sl.Uint16List.transferable(length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toUint16(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Uint16List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _ExternalUint16Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 2;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ExternalInt32Array extends _TypedData implements Int32List {
+  // Factory constructors.
+  
+  _ExternalInt32Array(int length) {
+    _array = new sl.Int32List.transferable(length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toInt32(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Int32List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _ExternalInt32Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 4;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ExternalUint32Array extends _TypedData implements Uint32List {
+  // Factory constructors.
+
+  _ExternalUint32Array(int length) {
+    _array = new sl.Uint32List.transferable(length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toUint32(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Uint32List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _ExternalUint32Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 4;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ExternalInt64Array extends _TypedData implements Int64List {
+  // Factory constructors.
+
+  _ExternalInt64Array(int length) {
+    _array = new sl.Int64List.transferable(length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toInt64(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Int64List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _ExternalInt64Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 8;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ExternalUint64Array extends _TypedData implements Uint64List {
+  // Factory constructors.
+
+  _ExternalUint64Array(int length) {
+    _array = new sl.Uint64List.transferable(length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  int operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, int value) {
+    _setIndexed(index, _toUint64(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Uint64List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    /**
+    if (from is _ExternalUint64Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 8;
+
+  int _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, int value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ExternalFloat32Array extends _TypedData implements Float32List {
+  // Factory constructors.
+
+  _ExternalFloat32Array(int length) {
+    _array = new sl.Float32List.transferable(length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  double operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, double value) {
+    _setIndexed(index, value);
+  }
+
+  Iterator<double> get iterator {
+    return new _ByteDataIterator<double>(this);
+  }
+
+  List<double> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<double> result = new Float32List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<double> from, [int startFrom = 0]) {
+    /**
+    if (from is _ExternalFloat32Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 4;
+
+  double _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, double value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ExternalFloat64Array extends _TypedData implements Float64List {
+  // Factory constructors.
+
+  _ExternalFloat64Array(int length) {
+    _array = new sl.Float64List.transferable(length);
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  double operator[](int index) {
+    return _getIndexed(index);
+  }
+
+  void operator[]=(int index, double value) {
+    _setIndexed(index, value);
+  }
+
+  Iterator<double> get iterator {
+    return new _ByteDataIterator<double>(this);
+  }
+
+  List<double> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<double> result = new Float64List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<double> from, [int startFrom = 0]) {
+    /**
+    if (from is _ExternalFloat64Array) {
+      _setRange(start * _BYTES_PER_ELEMENT,
+                length * _BYTES_PER_ELEMENT,
+                from,
+                startFrom * _BYTES_PER_ELEMENT);
+    } else {
+      Arrays.copy(from, startFrom, this, start, length);
+    }
+    */
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing the Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+
+  // Internal utility methods.
+
+  static const int _BYTES_PER_ELEMENT = 8;
+
+  double _getIndexed(int index) {
+    return _array[index];
+  }
+  void _setIndexed(int index, double value) {
+    _array[index] = value;
+  }
+}
+
+
+class _ByteDataIterator<E> implements Iterator<E> {
+  final List<E> _array;
+  final int _length;
+  int _position;
+  E _current;
+
+  _ByteDataIterator(List array)
+      : _array = array, _length = array.length, _position = -1 {
+    assert(array is _TypedData || array is _TypedDataView);
+  }
+
+  bool moveNext() {
+    int nextPosition = _position + 1;
+    if (nextPosition < _length) {
+      _current = _array[nextPosition];
+      _position = nextPosition;
+      return true;
+    }
+    _position = _length;
+    _current = null;
+    return false;
+  }
+
+  E get current => _current;
+}
+
+
+// TODO(floitsch): extending the collection adds extra cost (because of type
+// parameters). Consider copying the functions from Collection into this class
+// and just implementing Collection<int>.
+class _TypedDataView extends Collection<int> implements TypedData {
+  _TypedDataView(ByteBuffer _buffer, int _offset, int _length)
+    : _typeddata = _buffer as TypedData,
+      offsetInBytes = _offset,
+      length = _length {
+  }
+
+
+  // Method(s) implementing the TypedData interface.
+
+  int lengthInBytes() {
+    return length * elementSizeInBytes();
+  }
+
+  ByteBuffer get buffer {
+    return _typeddata.buffer;
+  }
+
+  // Method(s) implementing the Collection interface.
+
+  void forEach(void f(element)) {
+    var len = this.length;
+    for (var i = 0; i < len; i++) {
+      f(this[i]);
+    }
+  }
+
+  bool get isEmpty {
+    return this.length == 0;
+  }
+
+
+  // Method(s) implementing the List interface.
+
+  set length(newLength) {
+    throw new UnsupportedError(
+        "Cannot resize a non-extendable array");
+  }
+
+  void add(value) {
+    throw new UnsupportedError(
+        "Cannot add to a non-extendable array");
+  }
+
+  void addLast(value) {
+    throw new UnsupportedError(
+        "Cannot add to a non-extendable array");
+  }
+
+  void addAll(Iterable value) {
+    throw new UnsupportedError(
+        "Cannot add to a non-extendable array");
+  }
+
+  void sort([int compare(var a, var b)]) {
+    return IterableMixinWorkaround.sortList(this, compare);
+  }
+
+  int indexOf(element, [int start = 0]) {
+    return Arrays.indexOf(this, element, start, this.length);
+  }
+
+  int lastIndexOf(element, [int start = null]) {
+    if (start == null) start = length - 1;
+    return Arrays.lastIndexOf(this, element, start);
+  }
+
+  void clear() {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  int removeLast() {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  int removeAt(int index) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void remove(Object element) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void removeAll(Iterable elements) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void retainAll(Iterable elements) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void removeMatching(bool test(int element)) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void retainMatching(bool test(int element)) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  int get first {
+    if (length > 0) return this[0];
+    throw new StateError("No elements");
+  }
+
+  int get last {
+    if (length > 0) return this[length - 1];
+    throw new StateError("No elements");
+  }
+
+  int get single {
+    if (length == 1) return this[0];
+    if (length == 0) throw new StateError("No elements");
+    throw new StateError("More than one element");
+  }
+
+  void removeRange(int start, int length) {
+    throw new UnsupportedError(
+        "Cannot remove from a non-extendable array");
+  }
+
+  void insertRange(int start, int length, [initialValue]) {
+    throw new UnsupportedError(
+        "Cannot add to a non-extendable array");
+  }
+
+  final TypedData _typeddata;
+  final int offsetInBytes;
+  final int length;
+}
+
+
+class _Int8ArrayView extends _TypedDataView implements Int8List {
+  // Constructor.
+  _Int8ArrayView(ByteBuffer buffer, [int _offsetInBytes = 0, int _length])
+    : super(buffer,
+            _requireInteger(_offsetInBytes),
+            _requireIntegerOrNull(_length,
+                                  ((buffer.lengthInBytes() - _offsetInBytes) ~/
+                                   _BYTES_PER_ELEMENT))) {
+    _rangeCheck(buffer.lengthInBytes(),
+                offsetInBytes,
+                length * _BYTES_PER_ELEMENT);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  int operator[](int index) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    return _typeddata.getInt8(offsetInBytes + (index * _BYTES_PER_ELEMENT));
+  }
+
+  void operator[]=(int index, int value) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    _typeddata.setInt8(offsetInBytes + (index * _BYTES_PER_ELEMENT),
+                       _toInt8(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Int8List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  static const int _BYTES_PER_ELEMENT = 1;
+}
+
+
+class _Uint8ArrayView extends _TypedDataView implements Uint8List {
+  // Constructor.
+  _Uint8ArrayView(ByteBuffer buffer, [int _offsetInBytes = 0, int _length])
+    : super(buffer,
+            _requireInteger(_offsetInBytes),
+            _requireIntegerOrNull(_length,
+                                  ((buffer.lengthInBytes() - _offsetInBytes) ~/
+                                  _BYTES_PER_ELEMENT))) {
+    _rangeCheck(buffer.lengthInBytes(),
+                offsetInBytes,
+                length * _BYTES_PER_ELEMENT);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  int operator[](int index) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    return _typeddata.getUint8(offsetInBytes + (index * _BYTES_PER_ELEMENT));
+  }
+
+  void operator[]=(int index, int value) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    _typeddata.setUint8(offsetInBytes + (index * _BYTES_PER_ELEMENT),
+                        _toUint8(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Uint8List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  static const int _BYTES_PER_ELEMENT = 1;
+}
+
+
+class _Int16ArrayView extends _TypedDataView implements Int16List {
+  // Constructor.
+  _Int16ArrayView(ByteBuffer buffer, [int _offsetInBytes = 0, int _length])
+    : super(buffer,
+            _requireInteger(_offsetInBytes),
+            _requireIntegerOrNull(_length,
+                                  ((buffer.lengthInBytes() - _offsetInBytes) ~/
+                                   _BYTES_PER_ELEMENT))) {
+    _rangeCheck(buffer.lengthInBytes(),
+                offsetInBytes,
+                length * _BYTES_PER_ELEMENT);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  int operator[](int index) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    return _typeddata.getInt16(offsetInBytes + (index * _BYTES_PER_ELEMENT));
+  }
+
+  void operator[]=(int index, int value) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    _typeddata.setInt16(offsetInBytes + (index * _BYTES_PER_ELEMENT),
+                        _toInt16(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Int16List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  static const int _BYTES_PER_ELEMENT = 2;
+}
+
+
+class _Uint16ArrayView extends _TypedDataView implements Uint16List {
+  // Constructor.
+  _Uint16ArrayView(ByteBuffer buffer, [int _offsetInBytes = 0, int _length])
+    : super(buffer,
+            _requireInteger(_offsetInBytes),
+            _requireIntegerOrNull(_length,
+                                  ((buffer.lengthInBytes() - _offsetInBytes) ~/
+                                   _BYTES_PER_ELEMENT))) {
+    _rangeCheck(buffer.lengthInBytes(),
+                offsetInBytes,
+                length * _BYTES_PER_ELEMENT);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  int operator[](int index) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    return _typeddata.getUint16(offsetInBytes + (index * _BYTES_PER_ELEMENT));
+  }
+
+  void operator[]=(int index, int value) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    _typeddata.setUint16(offsetInBytes + (index * _BYTES_PER_ELEMENT),
+                         _toUint16(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Uint16List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  static const int _BYTES_PER_ELEMENT = 2;
+}
+
+
+class _Int32ArrayView extends _TypedDataView implements Int32List {
+  // Constructor.
+  _Int32ArrayView(ByteBuffer buffer, [int _offsetInBytes = 0, int _length])
+    : super(buffer,
+            _requireInteger(_offsetInBytes),
+            _requireIntegerOrNull(_length,
+                                  ((buffer.lengthInBytes() - _offsetInBytes) ~/
+                                  _BYTES_PER_ELEMENT))) {
+    _rangeCheck(buffer.lengthInBytes(),
+                offsetInBytes,
+                length * _BYTES_PER_ELEMENT);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  int operator[](int index) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    return _typeddata.getInt32(offsetInBytes + (index * _BYTES_PER_ELEMENT));
+  }
+
+  void operator[]=(int index, int value) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    _typeddata.setInt32(offsetInBytes + (index * _BYTES_PER_ELEMENT),
+                        _toInt32(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Int32List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  static const int _BYTES_PER_ELEMENT = 4;
+}
+
+
+class _Uint32ArrayView extends _TypedDataView implements Uint32List {
+  // Constructor.
+  _Uint32ArrayView(ByteBuffer buffer, [int _offsetInBytes = 0, int _length])
+    : super(buffer,
+            _requireInteger(_offsetInBytes),
+            _requireIntegerOrNull(_length,
+                                  ((buffer.lengthInBytes() - _offsetInBytes) ~/
+                                   _BYTES_PER_ELEMENT))) {
+    _rangeCheck(buffer.lengthInBytes(),
+                offsetInBytes,
+                length * _BYTES_PER_ELEMENT);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  int operator[](int index) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    return _typeddata.getUint32(offsetInBytes + (index * _BYTES_PER_ELEMENT));
+  }
+
+  void operator[]=(int index, int value) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    _typeddata.setUint32(offsetInBytes + (index * _BYTES_PER_ELEMENT),
+                         _toUint32(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Uint32List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  static const int _BYTES_PER_ELEMENT = 4;
+}
+
+
+class _Int64ArrayView extends _TypedDataView implements Int64List {
+  // Constructor.
+  _Int64ArrayView(ByteBuffer buffer, [int _offsetInBytes = 0, int _length])
+    : super(buffer,
+            _requireInteger(_offsetInBytes),
+            _requireIntegerOrNull(_length,
+                                  ((buffer.lengthInBytes() - _offsetInBytes) ~/
+                                  _BYTES_PER_ELEMENT))) {
+    _rangeCheck(buffer.lengthInBytes(),
+                offsetInBytes,
+                length * _BYTES_PER_ELEMENT);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  int operator[](int index) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    return _typeddata.getInt64(offsetInBytes + (index * _BYTES_PER_ELEMENT));
+  }
+
+  void operator[]=(int index, int value) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    _typeddata.setInt64(offsetInBytes + (index * _BYTES_PER_ELEMENT),
+                        _toInt64(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Int64List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  static const int _BYTES_PER_ELEMENT = 8;
+}
+
+
+class _Uint64ArrayView extends _TypedDataView implements Uint64List {
+  // Constructor.
+  _Uint64ArrayView(ByteBuffer buffer, [int _offsetInBytes = 0, int _length])
+    : super(buffer,
+            _requireInteger(_offsetInBytes),
+            _requireIntegerOrNull(_length,
+                                  ((buffer.lengthInBytes() - _offsetInBytes) ~/
+                                  _BYTES_PER_ELEMENT))) {
+    _rangeCheck(buffer.lengthInBytes(),
+                offsetInBytes,
+                length * _BYTES_PER_ELEMENT);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  int operator[](int index) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    return _typeddata.getUint64(offsetInBytes + (index * _BYTES_PER_ELEMENT));
+  }
+
+  void operator[]=(int index, int value) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    _typeddata.setUint64(offsetInBytes + (index * _BYTES_PER_ELEMENT),
+                         _toUint64(value));
+  }
+
+  Iterator<int> get iterator {
+    return new _ByteDataIterator<int>(this);
+  }
+
+  List<int> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<int> result = new Uint64List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<int> from, [int startFrom = 0]) {
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  static const int _BYTES_PER_ELEMENT = 8;
+}
+
+
+class _Float32ArrayView extends _TypedDataView implements Float32List {
+  // Constructor.
+  _Float32ArrayView(ByteBuffer buffer, [int _offsetInBytes = 0, int _length])
+    : super(buffer,
+            _requireInteger(_offsetInBytes),
+            _requireIntegerOrNull(_length,
+                                  ((buffer.lengthInBytes() - _offsetInBytes) ~/
+                                   _BYTES_PER_ELEMENT))) {
+    _rangeCheck(buffer.lengthInBytes(),
+                offsetInBytes,
+                length * _BYTES_PER_ELEMENT);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  double operator[](int index) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    return _typeddata.getFloat32(offsetInBytes + (index * _BYTES_PER_ELEMENT));
+  }
+
+  void operator[]=(int index, double value) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    _typeddata.setFloat32(offsetInBytes + (index * _BYTES_PER_ELEMENT), value);
+  }
+
+  Iterator<double> get iterator {
+    return new _ByteDataIterator<double>(this);
+  }
+
+  List<double> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<double> result = new Float32List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<double> from, [int startFrom = 0]) {
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  static const int _BYTES_PER_ELEMENT = 4;
+}
+
+
+class _Float64ArrayView extends _TypedDataView implements Float64List {
+  // Constructor.
+  _Float64ArrayView(ByteBuffer buffer, [int _offsetInBytes = 0, int _length])
+    : super(buffer,
+            _requireInteger(_offsetInBytes),
+            _requireIntegerOrNull(_length,
+                                  ((buffer.lengthInBytes() - _offsetInBytes) ~/
+                                   _BYTES_PER_ELEMENT))) {
+    _rangeCheck(buffer.lengthInBytes(),
+                offsetInBytes,
+                length * _BYTES_PER_ELEMENT);
+  }
+
+
+  // Method(s) implementing List interface.
+
+  double operator[](int index) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    return _typeddata.getFloat64(offsetInBytes + (index * _BYTES_PER_ELEMENT));
+  }
+
+  void operator[]=(int index, double value) {
+    if (index < 0 || index >= length) {
+      String message = "$index must be in the range [0..$length)";
+      throw new RangeError(message);
+    }
+    _typeddata.setFloat64(offsetInBytes + (index * _BYTES_PER_ELEMENT), value);
+  }
+
+  Iterator<double> get iterator {
+    return new _ByteDataIterator<double>(this);
+  }
+
+  List<double> getRange(int start, int length) {
+    _rangeCheck(this.length, start, length);
+    List<double> result = new Float64List(length);
+    result.setRange(0, length, this, start);
+    return result;
+  }
+
+  void setRange(int start, int length, List<double> from, [int startFrom = 0]) {
+    Arrays.copy(from, startFrom, this, start, length);
+  }
+
+
+  // Method(s) implementing Object interface.
+
+  String toString() {
+    return Collections.collectionToString(this);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  int elementSizeInBytes() {
+    return _BYTES_PER_ELEMENT;
+  }
+
+  static const int _BYTES_PER_ELEMENT = 8;
+}
+
+
+class _ByteDataView implements ByteData {
+  _ByteDataView(ByteBuffer _buffer, int _offsetInBytes, int _lengthInBytes)
+    : _typeddata = _buffer as TypedData,
+      _offset = _offsetInBytes,
+      _length = _lengthInBytes {
+    _rangeCheck(_buffer.lengthInBytes(), _offset, _length);
+  }
+
+
+  // Method(s) implementing TypedData interface.
+
+  ByteBuffer get buffer {
+    return _typeddata.buffer;
+  }
+
+  int lengthInBytes() {
+    return _length;
+  }
+
+  int offsetInBytes() {
+    return _offset;
+  }
+
+  // Method(s) implementing ByteData interface.
+
+  ByteData subByteData([int start = 0, int length]) {
+    if (start is! int) throw new ArgumentError("start is not an int");
+    if (length == null) {
+      length = this.lengthInBytes() - start;
+    } else if (length is! int) {
+      throw new ArgumentError("length is not an int");
+    }
+    return new _ByteDataView(_typeddata.buffer, _offset + start, length);
+  }
+
+  int getInt8(int byteOffset) {
+    return _typeddata._getInt8(_offset + byteOffset);
+  }
+  int setInt8(int byteOffset, int value) {
+    return _typeddata._setInt8(_offset + byteOffset, value);
+  }
+
+  int getUint8(int byteOffset) {
+    return _typeddata._getUint8(_offset + byteOffset);
+  }
+  int setUint8(int byteOffset, int value) {
+    return _typeddata._setUint8(_offset + byteOffset, value);
+  }
+
+  int getInt16(int byteOffset) {
+    return _typeddata._getInt16(_offset + byteOffset);
+  }
+  int setInt16(int byteOffset, int value) {
+    return _typeddata._setInt16(_offset + byteOffset, value);
+  }
+
+  int getUint16(int byteOffset) {
+    return _typeddata._getUint16(_offset + byteOffset);
+  }
+  int setUint16(int byteOffset, int value) {
+    return _typeddata._setUint16(_offset + byteOffset, value);
+  }
+
+  int getInt32(int byteOffset) {
+    return _typeddata._getInt32(_offset + byteOffset);
+  }
+  int setInt32(int byteOffset, int value) {
+    return _typeddata._setInt32(_offset + byteOffset, value);
+  }
+
+  int getUint32(int byteOffset) {
+    return _typeddata._getUint32(_offset + byteOffset);
+  }
+  int setUint32(int byteOffset, int value) {
+    return _typedata._setUint32(_offset + byteOffset, value);
+  }
+
+  int getInt64(int byteOffset) {
+    return _typedata._getInt64(_offset + byteOffset);
+  }
+  int setInt64(int byteOffset, int value) {
+    return _typedata._setInt64(_offset + byteOffset, value);
+  }
+
+  int getUint64(int byteOffset) {
+    return _typedata._getUint64(_offset + byteOffset);
+  }
+  int setUint64(int byteOffset, int value) {
+    return _typedata._setUint64(_offset + byteOffset, value);
+  }
+
+  double getFloat32(int byteOffset) {
+    return _typedata._getFloat32(_offset + byteOffset);
+  }
+  int setFloat32(int byteOffset, double value) {
+    return _typedata._setFloat32(_offset + byteOffset, value);
+  }
+
+  double getFloat64(int byteOffset) {
+    return _typedata._getFloat64(_offset + byteOffset);
+  }
+  int setFloat64(int byteOffset, double value) {
+    return _typedata._setFloat64(_offset + byteOffset, value);
+  }
+
+  final TypedData _typeddata;
+  final int _offset;
+  final int _length;
+}
+
+
+// Top level utility methods.
+int _toInt(int value, int mask) {
+  value &= mask;
+  if (value > (mask >> 1)) value -= mask + 1;
+  return value;
+}
+
+
+int _toInt8(int value) {
+  return _toInt(value, 0xFF);
+}
+
+
+int _toUint8(int value) {
+  return value & 0xFF;
+}
+
+
+int _toClampedUint8(int value) {
+  if (value < 0) return 0;
+  if (value > 0xFF) return 0xFF;
+  return value;
+}
+
+
+int _toInt16(int value) {
+  return _toInt(value, 0xFFFF);
+}
+
+
+int _toUint16(int value) {
+  return value & 0xFFFF;
+}
+
+
+int _toInt32(int value) {
+  return _toInt(value, 0xFFFFFFFF);
+}
+
+
+int _toUint32(int value) {
+  return value & 0xFFFFFFFF;
+}
+
+
+int _toInt64(int value) {
+  return _toInt(value, 0xFFFFFFFFFFFFFFFF);
+}
+
+
+int _toUint64(int value) {
+  return value & 0xFFFFFFFFFFFFFFFF;
+}
+
+
+void _rangeCheck(int listLength, int start, int length) {
+  if (length < 0) {
+    throw new RangeError.value(length);
+  }
+  if (start < 0) {
+    throw new RangeError.value(start);
+  }
+  if (start + length > listLength) {
+    throw new RangeError.value(start + length);
+  }
+}
+
+
+int _requireInteger(object) {
+  if (object is int) {
+    return object;
+  }
+  throw new ArgumentError("$object is not an integer");
+}
+
+
+int _requireIntegerOrNull(object, value) {
+  if (object is int) {
+    return object;
+  }
+  if (object == null) {
+    return _requireInteger(value);
+  }
+  throw new ArgumentError("$object is not an integer or null");
+}