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Unified Diff: sdk/lib/typed_data/dart2js/native_typed_data_dart2js.dart

Issue 138543005: Redo "Make dart2js typed_data implementation classes private" (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: dart2dart status Created 6 years, 11 months ago
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Index: sdk/lib/typed_data/dart2js/native_typed_data_dart2js.dart
diff --git a/sdk/lib/typed_data/dart2js/native_typed_data_dart2js.dart b/sdk/lib/typed_data/dart2js/native_typed_data_dart2js.dart
new file mode 100644
index 0000000000000000000000000000000000000000..17a61b65e77a51285b63a7536b6674c27694aee3
--- /dev/null
+++ b/sdk/lib/typed_data/dart2js/native_typed_data_dart2js.dart
@@ -0,0 +1,970 @@
+// 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.
+
+/**
+ * Specialized integers and floating point numbers,
+ * with SIMD support and efficient lists.
+ */
+library dart.typed_data.implementation;
+
+import 'dart:collection';
+import 'dart:_internal';
+import 'dart:_interceptors' show JSIndexable, JSUInt32, JSUInt31;
+import 'dart:_js_helper'
+ show Creates, JavaScriptIndexingBehavior, JSName, Null, Returns;
+import 'dart:_foreign_helper' show JS;
+import 'dart:math' as Math;
+
+import 'dart:typed_data';
+
+/**
+ * Describes endianness to be used when accessing a sequence of bytes.
+ */
+class Endianness {
+ const Endianness._(this._littleEndian);
+
+ static const Endianness BIG_ENDIAN = const Endianness._(false);
+ static const Endianness LITTLE_ENDIAN = const Endianness._(true);
+ static final Endianness HOST_ENDIAN =
+ (new ByteData.view(new Int16List.fromList([1]).buffer)).getInt8(0) == 1
+ ? LITTLE_ENDIAN
+ : BIG_ENDIAN;
+
+ final bool _littleEndian;
+}
+
+
+class NativeByteBuffer implements ByteBuffer native "ArrayBuffer" {
+ @JSName('byteLength')
+ final int lengthInBytes;
+
+ Type get runtimeType => ByteBuffer;
+}
+
+class NativeTypedData implements TypedData native "ArrayBufferView" {
+ /**
+ * Returns the byte buffer associated with this object.
+ */
+ @Creates('NativeByteBuffer')
+ // May be Null for IE's CanvasPixelArray.
+ @Returns('NativeByteBuffer|Null')
+ final ByteBuffer buffer;
+
+ /**
+ * Returns the length of this view, in bytes.
+ */
+ @JSName('byteLength')
+ final int lengthInBytes;
+
+ /**
+ * Returns the offset in bytes into the underlying byte buffer of this view.
+ */
+ @JSName('byteOffset')
+ final int offsetInBytes;
+
+ /**
+ * Returns the number of bytes in the representation of each element in this
+ * list.
+ */
+ @JSName('BYTES_PER_ELEMENT')
+ final int elementSizeInBytes;
+
+ void _invalidIndex(int index, int length) {
+ if (index < 0 || index >= length) {
+ throw new RangeError.range(index, 0, length);
+ } else {
+ throw new ArgumentError('Invalid list index $index');
+ }
+ }
+
+ void _checkIndex(int index, int length) {
+ if (JS('bool', '(# >>> 0 != #)', index, index) || index >= length) {
+ _invalidIndex(index, length);
+ }
+ }
+
+ int _checkSublistArguments(int start, int end, int length) {
+ // For `sublist` the [start] and [end] indices are allowed to be equal to
+ // [length]. However, [_checkIndex] only allows indices in the range
+ // 0 .. length - 1. We therefore increment the [length] argument by one
+ // for the [_checkIndex] checks.
+ _checkIndex(start, length + 1);
+ if (end == null) return length;
+ _checkIndex(end, length + 1);
+ if (start > end) throw new RangeError.range(start, 0, end);
+ return end;
+ }
+}
+
+
+// Validates the unnamed constructor length argument. Checking is necessary
+// because passing unvalidated values to the native constructors can cause
+// conversions or create views.
+int _checkLength(length) {
+ if (length is! int) throw new ArgumentError('Invalid length $length');
+ return length;
+}
+
+// Validates `.view` constructor arguments. Checking is necessary because
+// passing unvalidated values to the native constructors can cause conversions
+// (e.g. String arguments) or create typed data objects that are not actually
+// views of the input.
+void _checkViewArguments(buffer, offsetInBytes, length) {
+ if (buffer is! NativeByteBuffer) {
+ throw new ArgumentError('Invalid view buffer');
+ }
+ if (offsetInBytes is! int) {
+ throw new ArgumentError('Invalid view offsetInBytes $offsetInBytes');
+ }
+ if (length != null && length is! int) {
+ throw new ArgumentError('Invalid view length $length');
+ }
+}
+
+// Ensures that [list] is a JavaScript Array or a typed array. If necessary,
+// returns a copy of the list.
+List _ensureNativeList(List list) {
+ if (list is JSIndexable) return list;
+ List result = new List(list.length);
+ for (int i = 0; i < list.length; i++) {
+ result[i] = list[i];
+ }
+ return result;
+}
+
+
+class NativeByteData extends NativeTypedData implements ByteData
+ native "DataView" {
+ /**
+ * Creates a [ByteData] of the specified length (in elements), all of
+ * whose elements are initially zero.
+ */
+ factory NativeByteData(int length) => _create1(_checkLength(length));
+
+ /**
+ * Creates an [ByteData] _view_ of the specified region in the specified
+ * byte buffer. Changes in the [ByteData] will be visible in the byte
+ * buffer and vice versa. If the [offsetInBytes] index of the region is not
+ * specified, it defaults to zero (the first byte in the byte buffer).
+ * If the length is not specified, it defaults to null, which indicates
+ * that the view extends to the end of the byte buffer.
+ *
+ * Throws [RangeError] if [offsetInBytes] or [length] are negative, or
+ * if [offsetInBytes] + ([length] * elementSizeInBytes) is greater than
+ * the length of [buffer].
+ */
+ factory NativeByteData.view(ByteBuffer buffer,
+ [int offsetInBytes = 0, int length]) {
+ _checkViewArguments(buffer, offsetInBytes, length);
+ return length == null
+ ? _create2(buffer, offsetInBytes)
+ : _create3(buffer, offsetInBytes, length);
+ }
+
+ Type get runtimeType => ByteData;
+
+ int get elementSizeInBytes => 1;
+
+ /**
+ * Returns the floating point number represented by the four bytes at
+ * the specified [byteOffset] in this object, in IEEE 754
+ * single-precision binary floating-point format (binary32).
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 4` is greater than the length of this object.
+ */
+ num getFloat32(int byteOffset, [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _getFloat32(byteOffset, endian._littleEndian);
+
+ @JSName('getFloat32')
+ @Returns('num')
+ num _getFloat32(int byteOffset, [bool littleEndian]) native;
+
+ /**
+ * Returns the floating point number represented by the eight bytes at
+ * the specified [byteOffset] in this object, in IEEE 754
+ * double-precision binary floating-point format (binary64).
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 8` is greater than the length of this object.
+ */
+ num getFloat64(int byteOffset, [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _getFloat64(byteOffset, endian._littleEndian);
+
+ @JSName('getFloat64')
+ @Returns('num')
+ num _getFloat64(int byteOffset, [bool littleEndian]) native;
+
+ /**
+ * Returns the (possibly negative) integer represented by the two bytes at
+ * the specified [byteOffset] in this object, in two's complement binary
+ * form.
+ * The return value will be between 2<sup>15</sup> and 2<sup>15</sup> - 1,
+ * inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 2` is greater than the length of this object.
+ */
+ int getInt16(int byteOffset, [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _getInt16(byteOffset, endian._littleEndian);
+
+ @JSName('getInt16')
+ @Returns('int')
+ int _getInt16(int byteOffset, [bool littleEndian]) native;
+
+ /**
+ * Returns the (possibly negative) integer represented by the four bytes at
+ * the specified [byteOffset] in this object, in two's complement binary
+ * form.
+ * The return value will be between 2<sup>31</sup> and 2<sup>31</sup> - 1,
+ * inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 4` is greater than the length of this object.
+ */
+ int getInt32(int byteOffset, [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _getInt32(byteOffset, endian._littleEndian);
+
+ @JSName('getInt32')
+ @Returns('int')
+ int _getInt32(int byteOffset, [bool littleEndian]) native;
+
+ /**
+ * Returns the (possibly negative) integer represented by the eight bytes at
+ * the specified [byteOffset] in this object, in two's complement binary
+ * form.
+ * The return value will be between 2<sup>63</sup> and 2<sup>63</sup> - 1,
+ * inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 8` is greater than the length of this object.
+ */
+ int getInt64(int byteOffset, [Endianness endian=Endianness.BIG_ENDIAN]) {
+ throw new UnsupportedError("Int64 accessor not supported by dart2js.");
+ }
+
+ /**
+ * Returns the (possibly negative) integer represented by the byte at the
+ * specified [byteOffset] in this object, in two's complement binary
+ * representation. The return value will be between -128 and 127, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * greater than or equal to the length of this object.
+ */
+ int getInt8(int byteOffset) native;
+
+ /**
+ * Returns the positive integer represented by the two bytes starting
+ * at the specified [byteOffset] in this object, in unsigned binary
+ * form.
+ * The return value will be between 0 and 2<sup>16</sup> - 1, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 2` is greater than the length of this object.
+ */
+ int getUint16(int byteOffset, [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _getUint16(byteOffset, endian._littleEndian);
+
+ @JSName('getUint16')
+ @Returns('JSUInt31')
+ int _getUint16(int byteOffset, [bool littleEndian]) native;
+
+ /**
+ * Returns the positive integer represented by the four bytes starting
+ * at the specified [byteOffset] in this object, in unsigned binary
+ * form.
+ * The return value will be between 0 and 2<sup>32</sup> - 1, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 4` is greater than the length of this object.
+ */
+ int getUint32(int byteOffset, [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _getUint32(byteOffset, endian._littleEndian);
+
+ @JSName('getUint32')
+ @Returns('JSUInt32')
+ int _getUint32(int byteOffset, [bool littleEndian]) native;
+
+ /**
+ * Returns the positive integer represented by the eight bytes starting
+ * at the specified [byteOffset] in this object, in unsigned binary
+ * form.
+ * The return value will be between 0 and 2<sup>64</sup> - 1, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 8` is greater than the length of this object.
+ */
+ int getUint64(int byteOffset, [Endianness endian=Endianness.BIG_ENDIAN]) {
+ throw new UnsupportedError("Uint64 accessor not supported by dart2js.");
+ }
+
+ /**
+ * Returns the positive integer represented by the byte at the specified
+ * [byteOffset] in this object, in unsigned binary form. The
+ * return value will be between 0 and 255, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * greater than or equal to the length of this object.
+ */
+ int getUint8(int byteOffset) native;
+
+ /**
+ * Sets the four bytes starting at the specified [byteOffset] in this
+ * object to the IEEE 754 single-precision binary floating-point
+ * (binary32) representation of the specified [value].
+ *
+ * **Note that this method can lose precision.** The input [value] is
+ * a 64-bit floating point value, which will be converted to 32-bit
+ * floating point value by IEEE 754 rounding rules before it is stored.
+ * If [value] cannot be represented exactly as a binary32, it will be
+ * converted to the nearest binary32 value. If two binary32 values are
+ * equally close, the one whose least significant bit is zero will be used.
+ * Note that finite (but large) values can be converted to infinity, and
+ * small non-zero values can be converted to zero.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 4` is greater than the length of this object.
+ */
+ void setFloat32(int byteOffset, num value,
+ [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _setFloat32(byteOffset, value, endian._littleEndian);
+
+ @JSName('setFloat32')
+ void _setFloat32(int byteOffset, num value, [bool littleEndian]) native;
+
+ /**
+ * Sets the eight bytes starting at the specified [byteOffset] in this
+ * object to the IEEE 754 double-precision binary floating-point
+ * (binary64) representation of the specified [value].
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 8` is greater than the length of this object.
+ */
+ void setFloat64(int byteOffset, num value,
+ [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _setFloat64(byteOffset, value, endian._littleEndian);
+
+ @JSName('setFloat64')
+ void _setFloat64(int byteOffset, num value, [bool littleEndian]) native;
+
+ /**
+ * Sets the two bytes starting at the specified [byteOffset] in this
+ * object to the two's complement binary representation of the specified
+ * [value], which must fit in two bytes. In other words, [value] must lie
+ * between 2<sup>15</sup> and 2<sup>15</sup> - 1, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 2` is greater than the length of this object.
+ */
+ void setInt16(int byteOffset, int value,
+ [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _setInt16(byteOffset, value, endian._littleEndian);
+
+ @JSName('setInt16')
+ void _setInt16(int byteOffset, int value, [bool littleEndian]) native;
+
+ /**
+ * Sets the four bytes starting at the specified [byteOffset] in this
+ * object to the two's complement binary representation of the specified
+ * [value], which must fit in four bytes. In other words, [value] must lie
+ * between 2<sup>31</sup> and 2<sup>31</sup> - 1, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 4` is greater than the length of this object.
+ */
+ void setInt32(int byteOffset, int value,
+ [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _setInt32(byteOffset, value, endian._littleEndian);
+
+ @JSName('setInt32')
+ void _setInt32(int byteOffset, int value, [bool littleEndian]) native;
+
+ /**
+ * Sets the eight bytes starting at the specified [byteOffset] in this
+ * object to the two's complement binary representation of the specified
+ * [value], which must fit in eight bytes. In other words, [value] must lie
+ * between 2<sup>63</sup> and 2<sup>63</sup> - 1, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 8` is greater than the length of this object.
+ */
+ void setInt64(int byteOffset, int value,
+ [Endianness endian=Endianness.BIG_ENDIAN]) {
+ throw new UnsupportedError("Int64 accessor not supported by dart2js.");
+ }
+
+ /**
+ * Sets the byte at the specified [byteOffset] in this object to the
+ * two's complement binary representation of the specified [value], which
+ * must fit in a single byte. In other words, [value] must be between
+ * -128 and 127, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * greater than or equal to the length of this object.
+ */
+ void setInt8(int byteOffset, int value) native;
+
+ /**
+ * Sets the two bytes starting at the specified [byteOffset] in this object
+ * to the unsigned binary representation of the specified [value],
+ * which must fit in two bytes. in other words, [value] must be between
+ * 0 and 2<sup>16</sup> - 1, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 2` is greater than the length of this object.
+ */
+ void setUint16(int byteOffset, int value,
+ [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _setUint16(byteOffset, value, endian._littleEndian);
+
+ @JSName('setUint16')
+ void _setUint16(int byteOffset, int value, [bool littleEndian]) native;
+
+ /**
+ * Sets the four bytes starting at the specified [byteOffset] in this object
+ * to the unsigned binary representation of the specified [value],
+ * which must fit in four bytes. in other words, [value] must be between
+ * 0 and 2<sup>32</sup> - 1, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 4` is greater than the length of this object.
+ */
+ void setUint32(int byteOffset, int value,
+ [Endianness endian=Endianness.BIG_ENDIAN]) =>
+ _setUint32(byteOffset, value, endian._littleEndian);
+
+ @JSName('setUint32')
+ void _setUint32(int byteOffset, int value, [bool littleEndian]) native;
+
+ /**
+ * Sets the eight bytes starting at the specified [byteOffset] in this object
+ * to the unsigned binary representation of the specified [value],
+ * which must fit in eight bytes. in other words, [value] must be between
+ * 0 and 2<sup>64</sup> - 1, inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative, or
+ * `byteOffset + 8` is greater than the length of this object.
+ */
+ void setUint64(int byteOffset, int value,
+ [Endianness endian=Endianness.BIG_ENDIAN]) {
+ throw new UnsupportedError("Uint64 accessor not supported by dart2js.");
+ }
+
+ /**
+ * Sets the byte at the specified [byteOffset] in this object to the
+ * unsigned binary representation of the specified [value], which must fit
+ * in a single byte. in other words, [value] must be between 0 and 255,
+ * inclusive.
+ *
+ * Throws [RangeError] if [byteOffset] is negative,
+ * or greater than or equal to the length of this object.
+ */
+ void setUint8(int byteOffset, int value) native;
+
+ static NativeByteData _create1(arg) =>
+ JS('NativeByteData', 'new DataView(new ArrayBuffer(#))', arg);
+
+ static NativeByteData _create2(arg1, arg2) =>
+ JS('NativeByteData', 'new DataView(#, #)', arg1, arg2);
+
+ static NativeByteData _create3(arg1, arg2, arg3) =>
+ JS('NativeByteData', 'new DataView(#, #, #)', arg1, arg2, arg3);
+}
+
+
+// TODO(sra): Move this type to a public name in a private library so that other
+// platform libraries like dart:html and dart:webaudio can tell a native array
+// from a list that implements the implicit interface.
+abstract class NativeTypedArray extends NativeTypedData
+ implements JavaScriptIndexingBehavior {
+ int get length => JS("JSUInt32", '#.length', this);
+
+ bool _setRangeFast(int start, int end,
+ NativeTypedArray source, int skipCount) {
+ int targetLength = this.length;
+ _checkIndex(start, targetLength + 1);
+ _checkIndex(end, targetLength + 1);
+ if (start > end) throw new RangeError.range(start, 0, end);
+ int count = end - start;
+
+ if (skipCount < 0) throw new ArgumentError(skipCount);
+
+ int sourceLength = source.length;
+ if (sourceLength - skipCount < count) {
+ throw new StateError("Not enough elements");
+ }
+
+ if (skipCount != 0 || sourceLength != count) {
+ // Create a view of the exact subrange that is copied from the source.
+ source = JS('', '#.subarray(#, #)',
+ source, skipCount, skipCount + count);
+ }
+ JS('void', '#.set(#, #)', this, source, start);
+ }
+}
+
+// TODO(sra): Move to private library, like [NativeTypedArray].
+abstract class NativeTypedArrayOfDouble
+ extends NativeTypedArray
+ with ListMixin<double>, FixedLengthListMixin<double>
+ implements List<double> {
+
+ void setRange(int start, int end, Iterable<double> iterable,
+ [int skipCount = 0]) {
+ if (iterable is NativeTypedArrayOfDouble) {
+ _setRangeFast(start, end, iterable, skipCount);
+ return;
+ }
+ super.setRange(start, end, iterable, skipCount);
+ }
+}
+
+// TODO(sra): Move to private library, like [NativeTypedArray].
+abstract class NativeTypedArrayOfInt
+ extends NativeTypedArray
+ with ListMixin<int>, FixedLengthListMixin<int>
+ implements List<int> {
+
+ void setRange(int start, int end, Iterable<int> iterable,
+ [int skipCount = 0]) {
+ if (iterable is NativeTypedArrayOfInt) {
+ _setRangeFast(start, end, iterable, skipCount);
+ return;
+ }
+ super.setRange(start, end, iterable, skipCount);
+ }
+}
+
+
+class NativeFloat32List
+ extends NativeTypedArrayOfDouble
+ implements Float32List
+ native "Float32Array" {
+
+ factory NativeFloat32List(int length) => _create1(_checkLength(length));
+
+ factory NativeFloat32List.fromList(List<double> elements) =>
+ _create1(_ensureNativeList(elements));
+
+ factory NativeFloat32List.view(ByteBuffer buffer,
+ int offsetInBytes, int length) {
+ _checkViewArguments(buffer, offsetInBytes, length);
+ return length == null
+ ? _create2(buffer, offsetInBytes)
+ : _create3(buffer, offsetInBytes, length);
+ }
+
+ Type get runtimeType => Float32List;
+
+ num operator[](int index) {
+ _checkIndex(index, length);
+ return JS("num", "#[#]", this, index);
+ }
+
+ void operator[]=(int index, num value) {
+ _checkIndex(index, length);
+ JS("void", "#[#] = #", this, index, value);
+ }
+
+ List<double> sublist(int start, [int end]) {
+ end = _checkSublistArguments(start, end, length);
+ var source = JS('NativeFloat32List', '#.subarray(#, #)', this, start, end);
+ return _create1(source);
+ }
+
+ static NativeFloat32List _create1(arg) =>
+ JS('NativeFloat32List', 'new Float32Array(#)', arg);
+
+ static NativeFloat32List _create2(arg1, arg2) =>
+ JS('NativeFloat32List', 'new Float32Array(#, #)', arg1, arg2);
+
+ static NativeFloat32List _create3(arg1, arg2, arg3) =>
+ JS('NativeFloat32List', 'new Float32Array(#, #, #)', arg1, arg2, arg3);
+}
+
+
+class NativeFloat64List
+ extends NativeTypedArrayOfDouble
+ implements Float64List
+ native "Float64Array" {
+
+ factory NativeFloat64List(int length) => _create1(_checkLength(length));
+
+ factory NativeFloat64List.fromList(List<double> elements) =>
+ _create1(_ensureNativeList(elements));
+
+ factory NativeFloat64List.view(ByteBuffer buffer,
+ int offsetInBytes, int length) {
+ _checkViewArguments(buffer, offsetInBytes, length);
+ return length == null
+ ? _create2(buffer, offsetInBytes)
+ : _create3(buffer, offsetInBytes, length);
+ }
+
+ Type get runtimeType => Float64List;
+
+ num operator[](int index) {
+ _checkIndex(index, length);
+ return JS("num", "#[#]", this, index);
+ }
+
+ void operator[]=(int index, num value) {
+ _checkIndex(index, length);
+ JS("void", "#[#] = #", this, index, value);
+ }
+
+ List<double> sublist(int start, [int end]) {
+ end = _checkSublistArguments(start, end, length);
+ var source = JS('NativeFloat64List', '#.subarray(#, #)', this, start, end);
+ return _create1(source);
+ }
+
+ static NativeFloat64List _create1(arg) =>
+ JS('NativeFloat64List', 'new Float64Array(#)', arg);
+
+ static NativeFloat64List _create2(arg1, arg2) =>
+ JS('NativeFloat64List', 'new Float64Array(#, #)', arg1, arg2);
+
+ static NativeFloat64List _create3(arg1, arg2, arg3) =>
+ JS('NativeFloat64List', 'new Float64Array(#, #, #)', arg1, arg2, arg3);
+}
+
+
+class NativeInt16List
+ extends NativeTypedArrayOfInt
+ implements Int16List
+ native "Int16Array" {
+
+ factory NativeInt16List(int length) => _create1(_checkLength(length));
+
+ factory NativeInt16List.fromList(List<int> elements) =>
+ _create1(_ensureNativeList(elements));
+
+ factory NativeInt16List.view(ByteBuffer buffer,
+ [int offsetInBytes = 0, int length]) {
+ _checkViewArguments(buffer, offsetInBytes, length);
+ return length == null
+ ? _create2(buffer, offsetInBytes)
+ : _create3(buffer, offsetInBytes, length);
+ }
+
+ Type get runtimeType => Int16List;
+
+ int operator[](int index) {
+ _checkIndex(index, length);
+ return JS("int", "#[#]", this, index);
+ }
+
+ void operator[]=(int index, int value) {
+ _checkIndex(index, length);
+ JS("void", "#[#] = #", this, index, value);
+ }
+
+ List<int> sublist(int start, [int end]) {
+ end = _checkSublistArguments(start, end, length);
+ var source = JS('NativeInt16List', '#.subarray(#, #)', this, start, end);
+ return _create1(source);
+ }
+
+ static NativeInt16List _create1(arg) =>
+ JS('NativeInt16List', 'new Int16Array(#)', arg);
+
+ static NativeInt16List _create2(arg1, arg2) =>
+ JS('NativeInt16List', 'new Int16Array(#, #)', arg1, arg2);
+
+ static NativeInt16List _create3(arg1, arg2, arg3) =>
+ JS('NativeInt16List', 'new Int16Array(#, #, #)', arg1, arg2, arg3);
+}
+
+
+class NativeInt32List
+ extends NativeTypedArrayOfInt
+ implements Int32List
+ native "Int32Array" {
+
+ factory NativeInt32List(int length) => _create1(_checkLength(length));
+
+ factory NativeInt32List.fromList(List<int> elements) =>
+ _create1(_ensureNativeList(elements));
+
+ factory NativeInt32List.view(ByteBuffer buffer,
+ int offsetInBytes, int length) {
+ _checkViewArguments(buffer, offsetInBytes, length);
+ return length == null
+ ? _create2(buffer, offsetInBytes)
+ : _create3(buffer, offsetInBytes, length);
+ }
+
+ Type get runtimeType => Int32List;
+
+ int operator[](int index) {
+ _checkIndex(index, length);
+ return JS("int", "#[#]", this, index);
+ }
+
+ void operator[]=(int index, int value) {
+ _checkIndex(index, length);
+ JS("void", "#[#] = #", this, index, value);
+ }
+
+ List<int> sublist(int start, [int end]) {
+ end = _checkSublistArguments(start, end, length);
+ var source = JS('NativeInt32List', '#.subarray(#, #)', this, start, end);
+ return _create1(source);
+ }
+
+ static NativeInt32List _create1(arg) =>
+ JS('NativeInt32List', 'new Int32Array(#)', arg);
+
+ static NativeInt32List _create2(arg1, arg2) =>
+ JS('NativeInt32List', 'new Int32Array(#, #)', arg1, arg2);
+
+ static NativeInt32List _create3(arg1, arg2, arg3) =>
+ JS('NativeInt32List', 'new Int32Array(#, #, #)', arg1, arg2, arg3);
+}
+
+
+class NativeInt8List
+ extends NativeTypedArrayOfInt
+ implements Int8List
+ native "Int8Array" {
+
+ factory NativeInt8List(int length) => _create1(_checkLength(length));
+
+ factory NativeInt8List.fromList(List<int> elements) =>
+ _create1(_ensureNativeList(elements));
+
+ factory NativeInt8List.view(ByteBuffer buffer,
+ int offsetInBytes, int length) {
+ _checkViewArguments(buffer, offsetInBytes, length);
+ return length == null
+ ? _create2(buffer, offsetInBytes)
+ : _create3(buffer, offsetInBytes, length);
+ }
+
+ Type get runtimeType => Int8List;
+
+ int operator[](int index) {
+ _checkIndex(index, length);
+ return JS("int", "#[#]", this, index);
+ }
+
+ void operator[]=(int index, int value) {
+ _checkIndex(index, length);
+ JS("void", "#[#] = #", this, index, value);
+ }
+
+ List<int> sublist(int start, [int end]) {
+ end = _checkSublistArguments(start, end, length);
+ var source = JS('NativeInt8List', '#.subarray(#, #)', this, start, end);
+ return _create1(source);
+ }
+
+ static NativeInt8List _create1(arg) =>
+ JS('NativeInt8List', 'new Int8Array(#)', arg);
+
+ static NativeInt8List _create2(arg1, arg2) =>
+ JS('NativeInt8List', 'new Int8Array(#, #)', arg1, arg2);
+
+ static Int8List _create3(arg1, arg2, arg3) =>
+ JS('NativeInt8List', 'new Int8Array(#, #, #)', arg1, arg2, arg3);
+}
+
+
+class NativeUint16List
+ extends NativeTypedArrayOfInt
+ implements Uint16List
+ native "Uint16Array" {
+
+ factory NativeUint16List(int length) => _create1(_checkLength(length));
+
+ factory NativeUint16List.fromList(List<int> list) =>
+ _create1(_ensureNativeList(list));
+
+ factory NativeUint16List.view(ByteBuffer buffer,
+ int offsetInBytes, int length) {
+ _checkViewArguments(buffer, offsetInBytes, length);
+ return length == null
+ ? _create2(buffer, offsetInBytes)
+ : _create3(buffer, offsetInBytes, length);
+ }
+
+ Type get runtimeType => Uint16List;
+
+ int operator[](int index) {
+ _checkIndex(index, length);
+ return JS("JSUInt31", "#[#]", this, index);
+ }
+
+ void operator[]=(int index, int value) {
+ _checkIndex(index, length);
+ JS("void", "#[#] = #", this, index, value);
+ }
+
+ List<int> sublist(int start, [int end]) {
+ end = _checkSublistArguments(start, end, length);
+ var source = JS('NativeUint16List', '#.subarray(#, #)', this, start, end);
+ return _create1(source);
+ }
+
+ static NativeUint16List _create1(arg) =>
+ JS('NativeUint16List', 'new Uint16Array(#)', arg);
+
+ static NativeUint16List _create2(arg1, arg2) =>
+ JS('NativeUint16List', 'new Uint16Array(#, #)', arg1, arg2);
+
+ static NativeUint16List _create3(arg1, arg2, arg3) =>
+ JS('NativeUint16List', 'new Uint16Array(#, #, #)', arg1, arg2, arg3);
+}
+
+
+class NativeUint32List
+ extends NativeTypedArrayOfInt
+ implements Uint32List
+ native "Uint32Array" {
+
+ factory NativeUint32List(int length) => _create1(_checkLength(length));
+
+ factory NativeUint32List.fromList(List<int> elements) =>
+ _create1(_ensureNativeList(elements));
+
+ factory NativeUint32List.view(ByteBuffer buffer,
+ int offsetInBytes, int length) {
+ _checkViewArguments(buffer, offsetInBytes, length);
+ return length == null
+ ? _create2(buffer, offsetInBytes)
+ : _create3(buffer, offsetInBytes, length);
+ }
+
+ Type get runtimeType => Uint32List;
+
+ int operator[](int index) {
+ _checkIndex(index, length);
+ return JS("JSUInt32", "#[#]", this, index);
+ }
+
+ void operator[]=(int index, int value) {
+ _checkIndex(index, length);
+ JS("void", "#[#] = #", this, index, value);
+ }
+
+ List<int> sublist(int start, [int end]) {
+ end = _checkSublistArguments(start, end, length);
+ var source = JS('NativeUint32List', '#.subarray(#, #)', this, start, end);
+ return _create1(source);
+ }
+
+ static NativeUint32List _create1(arg) =>
+ JS('NativeUint32List', 'new Uint32Array(#)', arg);
+
+ static NativeUint32List _create2(arg1, arg2) =>
+ JS('NativeUint32List', 'new Uint32Array(#, #)', arg1, arg2);
+
+ static NativeUint32List _create3(arg1, arg2, arg3) =>
+ JS('NativeUint32List', 'new Uint32Array(#, #, #)', arg1, arg2, arg3);
+}
+
+
+class NativeUint8ClampedList
+ extends NativeTypedArrayOfInt
+ implements Uint8ClampedList
+ native "Uint8ClampedArray,CanvasPixelArray" {
+
+ factory NativeUint8ClampedList(int length) => _create1(_checkLength(length));
+
+ factory NativeUint8ClampedList.fromList(List<int> elements) =>
+ _create1(_ensureNativeList(elements));
+
+ factory NativeUint8ClampedList.view(ByteBuffer buffer,
+ int offsetInBytes, int length) {
+ _checkViewArguments(buffer, offsetInBytes, length);
+ return length == null
+ ? _create2(buffer, offsetInBytes)
+ : _create3(buffer, offsetInBytes, length);
+ }
+
+ Type get runtimeType => Uint8ClampedList;
+
+ int get length => JS("JSUInt32", '#.length', this);
+
+ int operator[](int index) {
+ _checkIndex(index, length);
+ return JS("JSUInt31", "#[#]", this, index);
+ }
+
+ void operator[]=(int index, int value) {
+ _checkIndex(index, length);
+ JS("void", "#[#] = #", this, index, value);
+ }
+
+ List<int> sublist(int start, [int end]) {
+ end = _checkSublistArguments(start, end, length);
+ var source = JS('NativeUint8ClampedList', '#.subarray(#, #)',
+ this, start, end);
+ return _create1(source);
+ }
+
+ static NativeUint8ClampedList _create1(arg) =>
+ JS('NativeUint8ClampedList', 'new Uint8ClampedArray(#)', arg);
+
+ static NativeUint8ClampedList _create2(arg1, arg2) =>
+ JS('NativeUint8ClampedList', 'new Uint8ClampedArray(#, #)', arg1, arg2);
+
+ static NativeUint8ClampedList _create3(arg1, arg2, arg3) =>
+ JS('NativeUint8ClampedList', 'new Uint8ClampedArray(#, #, #)',
+ arg1, arg2, arg3);
+}
+
+
+class NativeUint8List
+ extends NativeTypedArrayOfInt
+ implements Uint8List
+ // On some browsers Uint8ClampedArray is a subtype of Uint8Array. Marking
+ // Uint8List as !nonleaf ensures that the native dispatch correctly handles
+ // the potential for Uint8ClampedArray to 'accidentally' pick up the
+ // dispatch record for Uint8List.
+ native "Uint8Array,!nonleaf" {
+
+ factory NativeUint8List(int length) => _create1(_checkLength(length));
+
+ factory NativeUint8List.fromList(List<int> elements) =>
+ _create1(_ensureNativeList(elements));
+
+ factory NativeUint8List.view(ByteBuffer buffer,
+ int offsetInBytes, int length) {
+ _checkViewArguments(buffer, offsetInBytes, length);
+ return length == null
+ ? _create2(buffer, offsetInBytes)
+ : _create3(buffer, offsetInBytes, length);
+ }
+
+ Type get runtimeType => Uint8List;
+
+ int get length => JS("JSUInt32", '#.length', this);
+
+ int operator[](int index) {
+ _checkIndex(index, length);
+ return JS("JSUInt31", "#[#]", this, index);
+ }
+
+ void operator[]=(int index, int value) {
+ _checkIndex(index, length);
+ JS("void", "#[#] = #", this, index, value);
+ }
+
+ List<int> sublist(int start, [int end]) {
+ end = _checkSublistArguments(start, end, length);
+ var source = JS('NativeUint8List', '#.subarray(#, #)', this, start, end);
+ return _create1(source);
+ }
+
+ static NativeUint8List _create1(arg) =>
+ JS('NativeUint8List', 'new Uint8Array(#)', arg);
+
+ static NativeUint8List _create2(arg1, arg2) =>
+ JS('NativeUint8List', 'new Uint8Array(#, #)', arg1, arg2);
+
+ static NativeUint8List _create3(arg1, arg2, arg3) =>
+ JS('NativeUint8List', 'new Uint8Array(#, #, #)', arg1, arg2, arg3);
+}
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