| // 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) || |
| JS('int', '#', index) >= length) { // 'int' guaranteed by above test. |
| _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); |
| } |