Typed array constructors with optional buffer offset and length.

lib/dom/frog/dom_frog.dart

Index: lib/dom/frog/dom_frog.dart
diff --git a/lib/dom/frog/dom_frog.dart b/lib/dom/frog/dom_frog.dart
index 90c36ddb45321e931d5b22401249ccc33bc1f28e..ffb9a34490191ff4cebee8ea14259a96504a3edd 100644
--- a/lib/dom/frog/dom_frog.dart
+++ b/lib/dom/frog/dom_frog.dart
@@ -14891,7 +14891,7 @@ interface Float32Array extends ArrayBufferView, List<num> default _TypedArrayFac
 
   Float32Array.fromList(List<num> list);
 
-  Float32Array.fromBuffer(ArrayBuffer buffer);
+  Float32Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length]);
 
   static final int BYTES_PER_ELEMENT = 4;
 
@@ -14913,7 +14913,7 @@ interface Float64Array extends ArrayBufferView, List<num> default _TypedArrayFac
 
   Float64Array.fromList(List<num> list);
 
-  Float64Array.fromBuffer(ArrayBuffer buffer);
+  Float64Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length]);
 
   static final int BYTES_PER_ELEMENT = 8;
 
@@ -17200,7 +17200,7 @@ interface Int16Array extends ArrayBufferView, List<int> default _TypedArrayFacto
 
   Int16Array.fromList(List<int> list);
 
-  Int16Array.fromBuffer(ArrayBuffer buffer);
+  Int16Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length]);
 
   static final int BYTES_PER_ELEMENT = 2;
 
@@ -17222,7 +17222,7 @@ interface Int32Array extends ArrayBufferView, List<int> default _TypedArrayFacto
 
   Int32Array.fromList(List<int> list);
 
-  Int32Array.fromBuffer(ArrayBuffer buffer);
+  Int32Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length]);
 
   static final int BYTES_PER_ELEMENT = 4;
 
@@ -17244,7 +17244,7 @@ interface Int8Array extends ArrayBufferView, List<int> default _TypedArrayFactor
 
   Int8Array.fromList(List<int> list);
 
-  Int8Array.fromBuffer(ArrayBuffer buffer);
+  Int8Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length]);
 
   static final int BYTES_PER_ELEMENT = 1;
 
@@ -22057,7 +22057,7 @@ interface Uint16Array extends ArrayBufferView, List<int> default _TypedArrayFact
 
   Uint16Array.fromList(List<int> list);
 
-  Uint16Array.fromBuffer(ArrayBuffer buffer);
+  Uint16Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length]);
 
   static final int BYTES_PER_ELEMENT = 2;
 
@@ -22079,7 +22079,7 @@ interface Uint32Array extends ArrayBufferView, List<int> default _TypedArrayFact
 
   Uint32Array.fromList(List<int> list);
 
-  Uint32Array.fromBuffer(ArrayBuffer buffer);
+  Uint32Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length]);
 
   static final int BYTES_PER_ELEMENT = 4;
 
@@ -22101,7 +22101,7 @@ interface Uint8Array extends ArrayBufferView, List<int> default _TypedArrayFacto
 
   Uint8Array.fromList(List<int> list);
 
-  Uint8Array.fromBuffer(ArrayBuffer buffer);
+  Uint8Array.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length]);
 
   static final int BYTES_PER_ELEMENT = 1;
 
@@ -22123,7 +22123,7 @@ interface Uint8ClampedArray extends Uint8Array default _TypedArrayFactoryProvide
 
   Uint8ClampedArray.fromList(List<int> list);
 
-  Uint8ClampedArray.fromBuffer(ArrayBuffer buffer);
+  Uint8ClampedArray.fromBuffer(ArrayBuffer buffer, [int byteOffset, int length]);
 
   final int length;
 
@@ -24646,43 +24646,92 @@ class _AudioContextFactoryProvider {
 ''';
 }
 
+class _WebKitPointFactoryProvider {
+
+  factory WebKitPoint(num x, num y) native '''return new WebKitPoint(x, y);''';
+}
+
+class _WebSocketFactoryProvider {
+
+  factory WebSocket(String url) native '''return new WebSocket(url);''';
+}
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
 class _TypedArrayFactoryProvider {
 
   factory Float32Array(int length) => _F32(length);
   factory Float32Array.fromList(List<num> list) => _F32(ensureNative(list));
-  factory Float32Array.fromBuffer(ArrayBuffer buffer) => _F32(buffer);
+  factory Float32Array.fromBuffer(ArrayBuffer buffer,
+                                  [int byteOffset = 0, int length]) {
+    if (length == null) return _F32_2(buffer, byteOffset);
+    return _F32_3(buffer, byteOffset, length);
+  }
 
   factory Float64Array(int length) => _F64(length);
   factory Float64Array.fromList(List<num> list) => _F64(ensureNative(list));
-  factory Float64Array.fromBuffer(ArrayBuffer buffer) => _F64(buffer);
+  factory Float64Array.fromBuffer(ArrayBuffer buffer,
+                                  [int byteOffset = 0, int length]) {
+    if (length == null) return _F64_2(buffer, byteOffset);
+    return _F64_3(buffer, byteOffset, length);
+  }
 
   factory Int8Array(int length) => _I8(length);
   factory Int8Array.fromList(List<num> list) => _I8(ensureNative(list));
-  factory Int8Array.fromBuffer(ArrayBuffer buffer) => _I8(buffer);
+  factory Int8Array.fromBuffer(ArrayBuffer buffer,
+                               [int byteOffset = 0, int length]) {
+    if (length == null) return _I8_2(buffer, byteOffset);
+    return _I8_3(buffer, byteOffset, length);
+  }
 
   factory Int16Array(int length) => _I16(length);
   factory Int16Array.fromList(List<num> list) => _I16(ensureNative(list));
-  factory Int16Array.fromBuffer(ArrayBuffer buffer) => _I16(buffer);
+  factory Int16Array.fromBuffer(ArrayBuffer buffer,
+                                [int byteOffset = 0, int length]) {
+    if (length == null) return _I16_2(buffer, byteOffset);
+    return _I16_3(buffer, byteOffset, length);
+  }
 
   factory Int32Array(int length) => _I32(length);
   factory Int32Array.fromList(List<num> list) => _I32(ensureNative(list));
-  factory Int32Array.fromBuffer(ArrayBuffer buffer) => _I32(buffer);
+  factory Int32Array.fromBuffer(ArrayBuffer buffer,
+                                [int byteOffset = 0, int length]) {
+    if (length == null) return _I32_2(buffer, byteOffset);
+    return _I32_3(buffer, byteOffset, length);
+  }
 
   factory Uint8Array(int length) => _U8(length);
   factory Uint8Array.fromList(List<num> list) => _U8(ensureNative(list));
-  factory Uint8Array.fromBuffer(ArrayBuffer buffer) => _U8(buffer);
+  factory Uint8Array.fromBuffer(ArrayBuffer buffer,
+                                [int byteOffset = 0, int length]) {
+    if (length == null) return _U8_2(buffer, byteOffset);
+    return _U8_3(buffer, byteOffset, length);
+  }
 
   factory Uint16Array(int length) => _U16(length);
   factory Uint16Array.fromList(List<num> list) => _U16(ensureNative(list));
-  factory Uint16Array.fromBuffer(ArrayBuffer buffer) => _U16(buffer);
+  factory Uint16Array.fromBuffer(ArrayBuffer buffer,
+                                 [int byteOffset = 0, int length]) {
+    if (length == null) return _U16_2(buffer, byteOffset);
+    return _U16_3(buffer, byteOffset, length);
+  }
 
   factory Uint32Array(int length) => _U32(length);
   factory Uint32Array.fromList(List<num> list) => _U32(ensureNative(list));
-  factory Uint32Array.fromBuffer(ArrayBuffer buffer) => _U32(buffer);
+  factory Uint32Array.fromBuffer(ArrayBuffer buffer,
+                                 [int byteOffset = 0, int length]) {
+    if (length == null) return _U32_2(buffer, byteOffset);
+    return _U32_3(buffer, byteOffset, length);
+  }
 
   factory Uint8ClampedArray(int length) => _U8C(length);
   factory Uint8ClampedArray.fromList(List<num> list) => _U8C(ensureNative(list));
-  factory Uint8ClampedArray.fromBuffer(ArrayBuffer buffer) => _U8C(buffer);
+  factory Uint8ClampedArray.fromBuffer(ArrayBuffer buffer,
+                                       [int byteOffset = 0, int length]) {
+    if (length == null) return _U8C_2(buffer, byteOffset);
+    return _U8C_3(buffer, byteOffset, length);
+  }
 
   static Float32Array _F32(arg) native 'return new Float32Array(arg);';
   static Float64Array _F64(arg) native 'return new Float64Array(arg);';
@@ -24694,18 +24743,31 @@ class _TypedArrayFactoryProvider {
   static Uint32Array _U32(arg) native 'return new Uint32Array(arg);';
   static Uint8ClampedArray _U8C(arg) native 'return new Uint8ClampedArray(arg);';
 
+  static Float32Array _F32_2(arg1, arg2) native 'return new Float32Array(arg1, arg2);';
+  static Float64Array _F64_2(arg1, arg2) native 'return new Float64Array(arg1, arg2);';
+  static Int8Array _I8_2(arg1, arg2) native 'return new Int8Array(arg1, arg2);';
+  static Int16Array _I16_2(arg1, arg2) native 'return new Int16Array(arg1, arg2);';
+  static Int32Array _I32_2(arg1, arg2) native 'return new Int32Array(arg1, arg2);';
+  static Uint8Array _U8_2(arg1, arg2) native 'return new Uint8Array(arg1, arg2);';
+  static Uint16Array _U16_2(arg1, arg2) native 'return new Uint16Array(arg1, arg2);';
+  static Uint32Array _U32_2(arg1, arg2) native 'return new Uint32Array(arg1, arg2);';
+  static Uint8ClampedArray _U8C_2(arg1, arg2) native 'return new Uint8ClampedArray(arg1, arg2);';
+
+  static Float32Array _F32_3(arg1, arg2, arg3) native 'return new Float32Array(arg1, arg2, arg3);';
+  static Float64Array _F64_3(arg1, arg2, arg3) native 'return new Float64Array(arg1, arg2, arg3);';
+  static Int8Array _I8_3(arg1, arg2, arg3) native 'return new Int8Array(arg1, arg2, arg3);';
+  static Int16Array _I16_3(arg1, arg2, arg3) native 'return new Int16Array(arg1, arg2, arg3);';
+  static Int32Array _I32_3(arg1, arg2, arg3) native 'return new Int32Array(arg1, arg2, arg3);';
+  static Uint8Array _U8_3(arg1, arg2, arg3) native 'return new Uint8Array(arg1, arg2, arg3);';
+  static Uint16Array _U16_3(arg1, arg2, arg3) native 'return new Uint16Array(arg1, arg2, arg3);';
+  static Uint32Array _U32_3(arg1, arg2, arg3) native 'return new Uint32Array(arg1, arg2, arg3);';
+  static Uint8ClampedArray _U8C_3(arg1, arg2, arg3) native 'return new Uint8ClampedArray(arg1, arg2, arg3);';
+
+
+  // Ensures that [list] is a JavaScript Array or a typed array.  If necessary,
+  // copies the list.
   static ensureNative(List list) => list;  // TODO: make sure.
 }
-
-class _WebKitPointFactoryProvider {
-
-  factory WebKitPoint(num x, num y) native '''return new WebKitPoint(x, y);''';
-}
-
-class _WebSocketFactoryProvider {
-
-  factory WebSocket(String url) native '''return new WebSocket(url);''';
-}
 // Copyright (c) 2011, 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.