Typed array constructors with optional buffer offset and length.

lib/dom/src/frog_TypedArrayFactoryProvider.dart

Index: lib/dom/src/frog_TypedArrayFactoryProvider.dart
diff --git a/lib/dom/src/frog_TypedArrayFactoryProvider.dart b/lib/dom/src/frog_TypedArrayFactoryProvider.dart
new file mode 100644
index 0000000000000000000000000000000000000000..89e720eaa808e6fc87a0303724543fa2ea56de30
--- /dev/null
+++ b/lib/dom/src/frog_TypedArrayFactoryProvider.dart
@@ -0,0 +1,113 @@
+// 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,
+                                  [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,
+                                  [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,
+                               [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,
+                                [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,
+                                [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,
+                                [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,
+                                 [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,
+                                 [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,
+                                       [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);';
+  static Int8Array _I8(arg) native 'return new Int8Array(arg);';
+  static Int16Array _I16(arg) native 'return new Int16Array(arg);';
+  static Int32Array _I32(arg) native 'return new Int32Array(arg);';
+  static Uint8Array _U8(arg) native 'return new Uint8Array(arg);';
+  static Uint16Array _U16(arg) native 'return new Uint16Array(arg);';
+  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.
+}