Create associated packages for the dart:collection and dart:async libs.

pkg/collection_helpers/lib/typed_buffers.dart

Index: pkg/collection_helpers/lib/typed_buffers.dart
diff --git a/pkg/collection_helpers/lib/typed_buffers.dart b/pkg/collection_helpers/lib/typed_buffers.dart
index 2f331e7b0dde4902edf5f27f68688601a3da7aef..612e3dfbe2bc2f01de6a20c8ffd19bc2e7f03a10 100644
--- a/pkg/collection_helpers/lib/typed_buffers.dart
+++ b/pkg/collection_helpers/lib/typed_buffers.dart
@@ -2,234 +2,7 @@
 // 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.
 
-/**
- * Growable typed-data lists.
- *
- * These lists works just as a typed-data list, except that they are growable.
- * They use an underlying buffer, and when that buffer becomes too small, it
- * is replaced by a new buffer.
- *
- * That means that using the [TypedDataView.buffer] getter is not guaranteed
- * to return the same result each time it is used, and that the buffer may
- * be larger than what the list is using.
- */
+@deprecated
 library dart.collection_helpers.typed_buffers;
 
-import "dart:collection" show ListBase;
-import "dart:typed_data";
-
-abstract class _TypedDataBuffer<E> extends ListBase<E> {
-  static const int INITIAL_LENGTH = 8;
-
-  /// This is a Uint8List for Uint8Buffer. It's both a List<E> and a TypedData,
-  /// which we don't have a type for here.
-  var _buffer;
-  /// The length of the list being built.
-  int _length;
-
-  _TypedDataBuffer(List<E> buffer)
-      : this._buffer = buffer, this._length = buffer.length;
-
-  int get length => _length;
-  E operator[](int index) {
-    if (index >= length) throw new RangeError.range(index, 0, length - 1);
-    return _buffer[index];
-  }
-
-  void operator[]=(int index, E value) {
-    if (index >= length) throw new RangeError.range(index, 0, length - 1);
-    _buffer[index] = value;
-  }
-
-  void set length(int newLength) {
-    if (newLength < _length) {
-      E defaultValue = _defaultValue;
-      for (int i = newLength; i < _length; i++) {
-        _buffer[i] = defaultValue;
-      }
-    } else if (newLength > _buffer.length) {
-      List<E> newBuffer;
-      if (_buffer.length == 0) {
-        newBuffer = _createBuffer(newLength);
-      } else {
-        newBuffer = _createBiggerBuffer(newLength);
-      }
-      newBuffer.setRange(0, _length, _buffer);
-      _buffer = newBuffer;
-    }
-    _length = newLength;
-  }
-
-  void _add(E value) {
-    if (_length == _buffer.length) _grow();
-    _buffer[_length++] = value;
-  }
-
-  // We override the default implementation of `add` and `addAll` because
-  // they grow by setting the length in increments of one. We want to grow
-  // by doubling capacity in most cases.
-  void add(E value) { _add(value); }
-
-  void addAll(Iterable<E> values) {
-    for (E value in values) _add(value);
-  }
-
-  void insert(int index, E element) {
-    if (index < 0 || index > _length) {
-      throw new RangeError.range(index, 0, _length);
-    }
-    if (_length < _buffer.length) {
-      _buffer.setRange(index + 1, _length + 1, _buffer, index);
-      _buffer[index] = element;
-      _length++;
-      return;
-    }
-    List<E> newBuffer = _createBiggerBuffer(null);
-    newBuffer.setRange(0, index, _buffer);
-    newBuffer.setRange(index + 1, _length + 1, _buffer, index);
-    newBuffer[index] = element;
-    _length++;
-    _buffer = newBuffer;
-  }
-
-  /**
-   * Create a bigger buffer.
-   *
-   * This method determines how much bigger a bigger buffer should
-   * be. If [requiredLength] is not null, it will be at least that
-   * size. It will always have at least have double the capacity of
-   * the current buffer.
-   */
-  List<E> _createBiggerBuffer(int requiredLength) {
-    int newLength = _buffer.length * 2;
-    if (requiredLength != null && newLength < requiredLength) {
-      newLength = requiredLength;
-    } else if (newLength < INITIAL_LENGTH) {
-      newLength = INITIAL_LENGTH;
-    }
-    return _createBuffer(newLength);
-  }
-
-  void _grow() {
-    _buffer = _createBiggerBuffer(null)..setRange(0, _length, _buffer);
-  }
-
-  void setRange(int start, int end, Iterable<E> source, [int skipCount = 0]) {
-    if (end > _length) throw new RangeError.range(end, 0, _length);
-    if (source is _TypedDataBuffer<E>) {
-      _buffer.setRange(start, end, source._buffer, skipCount);
-    } else {
-      _buffer.setRange(start, end, source, skipCount);
-    }
-  }
-
-  // TypedData.
-
-  int get elementSizeInBytes => _buffer.elementSizeInBytes;
-
-  int get lengthInBytes => _length * _buffer.elementSizeInBytes;
-
-  int get offsetInBytes => _buffer.offsetInBytes;
-
-  /**
-    * Returns the underlying [ByteBuffer].
-    *
-    * The returned buffer may be replaced by operations that change the [length]
-    * of this list.
-    *
-    * The buffer may be larger than [lengthInBytes] bytes, but never smaller.
-    */
-  ByteBuffer get buffer => _buffer.buffer;
-
-  // Specialization for the specific type.
-
-  // Return zero for integers, 0.0 for floats, etc.
-  // Used to fill buffer when changing length.
-  E get _defaultValue;
-
-  // Create a new typed list to use as buffer.
-  List<E> _createBuffer(int size);
-}
-
-abstract class _IntBuffer extends _TypedDataBuffer<int> {
-  _IntBuffer(buffer): super(buffer);
-  int get _defaultValue => 0;
-}
-
-abstract class _FloatBuffer extends _TypedDataBuffer<double> {
-  _FloatBuffer(buffer): super(buffer);
-  double get _defaultValue => 0.0;
-}
-
-class Uint8Buffer extends _IntBuffer {
-  Uint8Buffer([int initialLength = 0]) : super(new Uint8List(initialLength));
-  Uint8List _createBuffer(int size) => new Uint8List(size);
-}
-
-class Int8Buffer extends _IntBuffer {
-  Int8Buffer([int initialLength = 0]) : super(new Int8List(initialLength));
-  Int8List _createBuffer(int size) => new Int8List(size);
-}
-
-class Uint8ClampedBuffer extends _IntBuffer {
-  Uint8ClampedBuffer([int initialLength = 0])
-      : super(new Uint8ClampedList(initialLength));
-  Uint8ClampedList _createBuffer(int size) => new Uint8ClampedList(size);
-}
-
-class Uint16Buffer extends _IntBuffer {
-  Uint16Buffer([int initialLength = 0]) : super(new Uint16List(initialLength));
-  Uint16List _createBuffer(int size) => new Uint16List(size);
-}
-
-class Int16Buffer extends _IntBuffer {
-  Int16Buffer([int initialLength = 0]) : super(new Int16List(initialLength));
-  Int16List _createBuffer(int size) => new Int16List(size);
-}
-
-class Uint32Buffer extends _IntBuffer {
-  Uint32Buffer([int initialLength = 0]) : super(new Uint32List(initialLength));
-  Uint32List _createBuffer(int size) => new Uint32List(size);
-}
-
-class Int32Buffer extends _IntBuffer {
-  Int32Buffer([int initialLength = 0]) : super(new Int32List(initialLength));
-  Int32List _createBuffer(int size) => new Int32List(size);
-}
-
-class Uint64Buffer extends _IntBuffer {
-  Uint64Buffer([int initialLength = 0]) : super(new Uint64List(initialLength));
-  Uint64List _createBuffer(int size) => new Uint64List(size);
-}
-
-class Int64Buffer extends _IntBuffer {
-  Int64Buffer([int initialLength = 0]) : super(new Int64List(initialLength));
-  Int64List _createBuffer(int size) => new Int64List(size);
-}
-
-class Float32Buffer extends _FloatBuffer {
-  Float32Buffer([int initialLength = 0])
-      : super(new Float32List(initialLength));
-  Float32List _createBuffer(int size) => new Float32List(size);
-}
-
-class Float64Buffer extends _FloatBuffer {
-  Float64Buffer([int initialLength = 0])
-      : super(new Float64List(initialLength));
-  Float64List _createBuffer(int size) => new Float64List(size);
-}
-
-class Int32x4Buffer extends _TypedDataBuffer<Int32x4> {
-  static Int32x4 _zero = new Int32x4(0, 0, 0, 0);
-  Int32x4Buffer([int initialLength = 0])
-      : super(new Int32x4List(initialLength));
-  Int32x4 get _defaultValue => _zero;
-  Int32x4List _createBuffer(int size) => new Int32x4List(size);
-}
-
-class Float32x4Buffer extends _TypedDataBuffer<Float32x4> {
-  Float32x4Buffer([int initialLength = 0])
-      : super(new Float32x4List(initialLength));
-  Float32x4 get _defaultValue => new Float32x4.zero();
-  Float32x4List _createBuffer(int size) => new Float32x4List(size);
-}
+export "package:typed_data/typed_buffers.dart";