source: branches/PersistenceOverhaul/HeuristicLab.Persistence/4.0/Transformers/Transformers.cs @ 13407

#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using Google.ProtocolBuffers;

namespace HeuristicLab.Persistence {
  public abstract class BoxTransformer<T> : Transformer {
    public override bool CanTransformType(Type type) {
      return type == typeof(T);
    }

    public override Box ToBox(object o, Mapper mapper) {
      var box = Box.CreateBuilder();
      box.TransformerId = mapper.GetTransformerId(this);
      box.TypeId = mapper.GetTypeId(o.GetType());
      Populate(box, (T)o, mapper);
      return box.Build();
    }
    public override object ToObject(Box box, Mapper mapper) {
      return Extract(box, mapper.GetType(box.TypeId), mapper);
    }
    protected abstract void Populate(Box.Builder box, T value, Mapper mapper);
    protected abstract T Extract(Box box, Type type, Mapper mapper);
  }

  #region Scalar Box Transformers
  public abstract class BoolBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = BoolBox.CreateBuilder();
      b.Value = ToBoxType(value, mapper);
      box.SetExtension<BoolBox>(BoolBox.Bool, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(BoolBox.Bool).Value, type, mapper);
    }
    protected abstract bool ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(bool value, Type type, Mapper mapper);
  }
  public abstract class IntBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = IntBox.CreateBuilder();
      b.Value = ToBoxType(value, mapper);
      box.SetExtension<IntBox>(IntBox.Int, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(IntBox.Int).Value, type, mapper);
    }
    protected abstract int ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(int value, Type type, Mapper mapper);
  }
  public abstract class LongBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = LongBox.CreateBuilder();
      b.Value = ToBoxType(value, mapper);
      box.SetExtension<LongBox>(LongBox.Long, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(LongBox.Long).Value, type, mapper);
    }
    protected abstract long ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(long value, Type type, Mapper mapper);
  }
  public abstract class UnsignedIntBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = UnsignedIntBox.CreateBuilder();
      b.Value = ToBoxType(value, mapper);
      box.SetExtension<UnsignedIntBox>(UnsignedIntBox.UnsignedInt, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(UnsignedIntBox.UnsignedInt).Value, type, mapper);
    }
    protected abstract uint ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(uint value, Type type, Mapper mapper);
  }
  public abstract class UnsignedLongBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = UnsignedLongBox.CreateBuilder();
      b.Value = ToBoxType(value, mapper);
      box.SetExtension<UnsignedLongBox>(UnsignedLongBox.UnsignedLong, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(UnsignedLongBox.UnsignedLong).Value, type, mapper);
    }
    protected abstract ulong ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(ulong value, Type type, Mapper mapper);
  }
  public abstract class FloatBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = FloatBox.CreateBuilder();
      b.Value = ToBoxType(value, mapper);
      box.SetExtension<FloatBox>(FloatBox.Float, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(FloatBox.Float).Value, type, mapper);
    }
    protected abstract float ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(float value, Type type, Mapper mapper);
  }
  public abstract class DoubleBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = DoubleBox.CreateBuilder();
      b.Value = ToBoxType(value, mapper);
      box.SetExtension<DoubleBox>(DoubleBox.Double, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(DoubleBox.Double).Value, type, mapper);
    }
    protected abstract double ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(double value, Type type, Mapper mapper);
  }
  public abstract class StringBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = StringBox.CreateBuilder();
      b.Value = ToBoxType(value, mapper);
      box.SetExtension<StringBox>(StringBox.String, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(StringBox.String).Value, type, mapper);
    }
    protected abstract string ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(string value, Type type, Mapper mapper);
  }
  public abstract class BytesBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = BytesBox.CreateBuilder();
      b.Value = ByteString.CopyFrom(ToBoxType(value, mapper));
      box.SetExtension<BytesBox>(BytesBox.Bytes, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(BytesBox.Bytes).Value.ToByteArray(), type, mapper);
    }
    protected abstract byte[] ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(byte[] value, Type type, Mapper mapper);
  }
  #endregion

  #region Array Box Transformers
  public abstract class BoolArrayBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = BoolArrayBox.CreateBuilder();
      b.AddRangeValues(ToBoxType(value, mapper));
      box.SetExtension<BoolArrayBox>(BoolArrayBox.BoolArray, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(BoolArrayBox.BoolArray).ValuesList, type, mapper);
    }
    protected abstract IEnumerable<bool> ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(IEnumerable<bool> value, Type type, Mapper mapper);
  }
  public abstract class IntArrayBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = IntArrayBox.CreateBuilder();
      b.AddRangeValues(ToBoxType(value, mapper));
      box.SetExtension<IntArrayBox>(IntArrayBox.IntArray, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(IntArrayBox.IntArray).ValuesList, type, mapper);
    }
    protected abstract IEnumerable<int> ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(IEnumerable<int> value, Type type, Mapper mapper);
  }
  public abstract class LongArrayBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = LongArrayBox.CreateBuilder();
      b.AddRangeValues(ToBoxType(value, mapper));
      box.SetExtension<LongArrayBox>(LongArrayBox.LongArray, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(LongArrayBox.LongArray).ValuesList, type, mapper);
    }
    protected abstract IEnumerable<long> ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(IEnumerable<long> value, Type type, Mapper mapper);
  }
  public abstract class UnsignedIntArrayBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = UnsignedIntArrayBox.CreateBuilder();
      b.AddRangeValues(ToBoxType(value, mapper));
      box.SetExtension<UnsignedIntArrayBox>(UnsignedIntArrayBox.UnsignedIntArray, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(UnsignedIntArrayBox.UnsignedIntArray).ValuesList, type, mapper);
    }
    protected abstract IEnumerable<uint> ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(IEnumerable<uint> value, Type type, Mapper mapper);
  }
  public abstract class UnsignedLongArrayBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = UnsignedLongArrayBox.CreateBuilder();
      b.AddRangeValues(ToBoxType(value, mapper));
      box.SetExtension<UnsignedLongArrayBox>(UnsignedLongArrayBox.UnsignedLongArray, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(UnsignedLongArrayBox.UnsignedLongArray).ValuesList, type, mapper);
    }
    protected abstract IEnumerable<ulong> ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(IEnumerable<ulong> value, Type type, Mapper mapper);
  }
  public abstract class FloatArrayBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = FloatArrayBox.CreateBuilder();
      b.AddRangeValues(ToBoxType(value, mapper));
      box.SetExtension<FloatArrayBox>(FloatArrayBox.FloatArray, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(FloatArrayBox.FloatArray).ValuesList, type, mapper);
    }
    protected abstract IEnumerable<float> ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(IEnumerable<float> value, Type type, Mapper mapper);
  }
  public abstract class DoubleArrayBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = DoubleArrayBox.CreateBuilder();
      b.AddRangeValues(ToBoxType(value, mapper));
      box.SetExtension<DoubleArrayBox>(DoubleArrayBox.DoubleArray, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(DoubleArrayBox.DoubleArray).ValuesList, type, mapper);
    }
    protected abstract IEnumerable<double> ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(IEnumerable<double> value, Type type, Mapper mapper);
  }
  public abstract class StringArrayBoxTransformer<T> : BoxTransformer<T> {
    protected override void Populate(Box.Builder box, T value, Mapper mapper) {
      var b = StringArrayBox.CreateBuilder();
      b.AddRangeValues(ToBoxType(value, mapper));
      box.SetExtension<StringArrayBox>(StringArrayBox.StringArray, b.Build());
    }
    protected override T Extract(Box box, Type type, Mapper mapper) {
      return ToValueType(box.GetExtension(StringArrayBox.StringArray).ValuesList, type, mapper);
    }
    protected abstract IEnumerable<string> ToBoxType(T value, Mapper mapper);
    protected abstract T ToValueType(IEnumerable<string> value, Type type, Mapper mapper);
  }
  #endregion

  #region Primitive Value Types
  [Transformer("9FA1C6A8-517E-4623-AC1B-7E9AEF6ED13D", 200)]
  internal sealed class BoolTransformer : BoolBoxTransformer<bool> {
    protected override bool ToBoxType(bool value, Mapper mapper) { return value; }
    protected override bool ToValueType(bool value, Type type, Mapper mapper) { return value; }
  }

  [Transformer("059633E9-12CB-43EC-8544-57746536E281", 201)]
  internal sealed class ByteTransformer : UnsignedIntBoxTransformer<byte> {
    protected override uint ToBoxType(byte value, Mapper mapper) { return value; }
    protected override byte ToValueType(uint value, Type type, Mapper mapper) { return (byte)value; }
  }

  [Transformer("5DC2F3AC-0852-4B57-A861-D29CC814A94C", 202)]
  internal sealed class SByteTransformer : IntBoxTransformer<sbyte> {
    protected override int ToBoxType(sbyte value, Mapper mapper) { return value; }
    protected override sbyte ToValueType(int value, Type type, Mapper mapper) { return (sbyte)value; }
  }

  [Transformer("B862E642-A94A-4870-8065-06126A35A9E1", 203)]
  internal sealed class ShortTransformer : IntBoxTransformer<short> {
    protected override int ToBoxType(short value, Mapper mapper) { return value; }
    protected override short ToValueType(int value, Type type, Mapper mapper) { return (short)value; }
  }

  [Transformer("D1D3062D-F1BB-4189-AE50-D6986E1DEB4E", 204)]
  internal sealed class UShortTransformer : UnsignedIntBoxTransformer<ushort> {
    protected override uint ToBoxType(ushort value, Mapper mapper) { return value; }
    protected override ushort ToValueType(uint value, Type type, Mapper mapper) { return (ushort)value; }
  }

  [Transformer("6C444645-3062-4D15-AD01-E6E1B0692A2B", 205)]
  internal sealed class CharTransformer : UnsignedIntBoxTransformer<char> {
    protected override uint ToBoxType(char value, Mapper mapper) { return value; }
    protected override char ToValueType(uint value, Type type, Mapper mapper) { return (char)value; }
  }

  [Transformer("649E73B2-EFA6-4E01-BCB4-4B29D652C9CB", 206)]
  internal sealed class IntTransformer : IntBoxTransformer<int> {
    protected override int ToBoxType(int value, Mapper mapper) { return value; }
    protected override int ToValueType(int value, Type type, Mapper mapper) { return value; }
  }

  [Transformer("BCF25010-81A2-49BC-88CC-407D3F393D5B", 207)]
  internal sealed class UIntTransformer : UnsignedIntBoxTransformer<uint> {
    protected override uint ToBoxType(uint value, Mapper mapper) { return value; }
    protected override uint ToValueType(uint value, Type type, Mapper mapper) { return value; }
  }

  [Transformer("B6F6ACAE-755C-47EE-B8BF-7CDECBE19C30", 208)]
  internal sealed class LongTransformer : LongBoxTransformer<long> {
    protected override long ToBoxType(long value, Mapper mapper) { return value; }
    protected override long ToValueType(long value, Type type, Mapper mapper) { return value; }
  }

  [Transformer("82333ACA-F041-44E0-B365-27C399594BA7", 209)]
  internal sealed class ULongTransformer : UnsignedLongBoxTransformer<ulong> {
    protected override ulong ToBoxType(ulong value, Mapper mapper) { return value; }
    protected override ulong ToValueType(ulong value, Type type, Mapper mapper) { return value; }
  }

  [Transformer("8FE91ECF-2261-4934-BECD-C38923B7A703", 210)]
  internal sealed class FloatTransformer : FloatBoxTransformer<float> {
    protected override float ToBoxType(float value, Mapper mapper) { return value; }
    protected override float ToValueType(float value, Type type, Mapper mapper) { return value; }
  }

  [Transformer("070D23EA-7F38-46B7-A667-219BEF914E49", 211)]
  internal sealed class DoubleTransformer : DoubleBoxTransformer<double> {
    protected override double ToBoxType(double value, Mapper mapper) { return value; }
    protected override double ToValueType(double value, Type type, Mapper mapper) { return value; }
  }

  [Transformer("BA55C7A6-C91E-4351-A889-E4A7E647F16D", 212)]
  internal sealed class DateTimeTransformer : LongBoxTransformer<DateTime> {
    protected override long ToBoxType(DateTime value, Mapper mapper) { return value.Ticks; }
    protected override DateTime ToValueType(long value, Type type, Mapper mapper) { return new DateTime(value); }
  }

  [Transformer("0C91441B-2D97-432B-B493-D6EC483FC5AD", 213)]
  internal sealed class TimeSpanTransformer : LongBoxTransformer<TimeSpan> {
    protected override long ToBoxType(TimeSpan value, Mapper mapper) { return value.Ticks; }
    protected override TimeSpan ToValueType(long value, Type type, Mapper mapper) { return new TimeSpan(value); }
  }

  [Transformer("0B540EAC-79AB-40CF-8277-D2C81135FEB6", 214)]
  internal sealed class ColorTransformers : IntBoxTransformer<Color> {
    protected override int ToBoxType(Color value, Mapper mapper) { return value.ToArgb(); }
    protected override Color ToValueType(int value, Type type, Mapper mapper) { return Color.FromArgb(value); }
  }

  [Transformer("2E6D4A40-B4BE-425F-8E35-2D7C00054639", 215)]
  internal sealed class PointTransformer : IntArrayBoxTransformer<Point> {
    protected override IEnumerable<int> ToBoxType(Point value, Mapper mapper) { return new int[] { value.X, value.Y }; }
    protected override Point ToValueType(IEnumerable<int> value, Type type, Mapper mapper) { return new Point(value.ElementAt(0), value.ElementAt(1)); }
  }

  [Transformer("97B5CFC8-CDFA-4EB5-B4CD-5B3CFA5CD844", 216)]
  internal sealed class KeyValuePairTransformer : UnsignedIntArrayBoxTransformer<object> {
    public override bool CanTransformType(Type type) {
      return type.IsGenericType && (type.GetGenericTypeDefinition() == typeof(KeyValuePair<,>));
    }
    protected override IEnumerable<uint> ToBoxType(object value, Mapper mapper) {
      var type = value.GetType();
      var pair = new uint[2];
      pair[0] = mapper.GetBoxId(type.GetProperty("Key").GetValue(value));
      pair[1] = mapper.GetBoxId(type.GetProperty("Value").GetValue(value));
      return pair;
    }
    protected override object ToValueType(IEnumerable<uint> value, Type type, Mapper mapper) {
      var key = mapper.GetObject(value.ElementAt(0));
      var val = mapper.GetObject(value.ElementAt(1));
      return Activator.CreateInstance(type, key, val);
    }
  }
  #endregion

  #region String
  [Transformer("E75A594C-0034-4DAB-B28E-8F84F9F6DE8D", 217)]
  internal sealed class StringTransformer : UnsignedIntBoxTransformer<string> {
    protected override uint ToBoxType(string value, Mapper mapper) { return mapper.GetStringId(value); }
    protected override string ToValueType(uint value, Type type, Mapper mapper) { return mapper.GetString(value); }
  }
  #endregion

  #region Enum
  [Transformer("93FF076B-BC4B-4C39-8C40-15E004468C98", 218)]
  internal sealed class EnumTransformer : Transformer {
    public override bool CanTransformType(Type type) {
      return typeof(Enum).IsAssignableFrom(type);
    }

    public override Box ToBox(object o, Mapper mapper) {
      var boxBuilder = Box.CreateBuilder();
      var enumBuilder = new UnsignedIntBox.Builder();

      boxBuilder.TransformerId = mapper.GetTransformerId(this);
      boxBuilder.TypeId = mapper.GetStringId(o.GetType().AssemblyQualifiedName);
      enumBuilder.Value = mapper.GetStringId(Enum.Format(o.GetType(), o, "G"));

      boxBuilder.SetExtension(UnsignedIntBox.UnsignedInt, enumBuilder.Build());
      return boxBuilder.Build();
    }

    public override object ToObject(Box box, Mapper mapper) {
      uint value = box.GetExtension(UnsignedIntBox.UnsignedInt).Value;
      return Enum.Parse(Type.GetType(mapper.GetString(box.TypeId)), mapper.GetString(value));
    }
  }
  #endregion

  #region Type
  [Transformer("8D17FD28-383B-44E9-9BBF-B19D351C5E38", 219)]
  internal sealed class TypeTransformer : Transformer {
    public override bool CanTransformType(Type type) {
      return typeof(Type).IsAssignableFrom(type);
    }
    public override Box ToBox(object o, Mapper mapper) {
      var boxBuilder = Box.CreateBuilder();

      boxBuilder.TransformerId = mapper.GetTransformerId(this);
      boxBuilder.TypeId = mapper.GetStringId(((Type)o).AssemblyQualifiedName);

      return boxBuilder.Build();
    }

    public override object ToObject(Box box, Mapper mapper) {
      return Type.GetType(mapper.GetString(box.TypeId));
    }
  }
  #endregion

  #region Array Types
  [Transformer("F25A73B2-6B67-4493-BD59-B836AF4455D1", 300)]
  internal sealed class BoolArrayTransformer : BoolArrayBoxTransformer<bool[]> {
    protected override IEnumerable<bool> ToBoxType(bool[] value, Mapper mapper) { return value; }
    protected override bool[] ToValueType(IEnumerable<bool> value, Type type, Mapper mapper) { return value.ToArray(); }
  }

  [Transformer("FF89F6D1-CDE3-498E-9166-F70AC6EB01F1", 301)]
  internal sealed class ByteArrayTransformer : UnsignedIntArrayBoxTransformer<byte[]> {
    protected override IEnumerable<uint> ToBoxType(byte[] value, Mapper mapper) { return value.Cast<uint>(); }
    protected override byte[] ToValueType(IEnumerable<uint> value, Type type, Mapper mapper) { return value.Cast<byte>().ToArray(); }
  }

  [Transformer("B49B3F2D-2E97-4BAB-8705-8D29DA707C6A", 302)]
  internal sealed class SByteArrayTransformer : IntArrayBoxTransformer<sbyte[]> {
    protected override IEnumerable<int> ToBoxType(sbyte[] value, Mapper mapper) { return value.Cast<int>(); }
    protected override sbyte[] ToValueType(IEnumerable<int> value, Type type, Mapper mapper) { return value.Cast<sbyte>().ToArray(); }
  }

  [Transformer("2811FDD4-6800-4CBA-86D7-9071ED5775ED", 303)]
  internal sealed class ShortArrayTransformer : IntArrayBoxTransformer<short[]> {
    protected override IEnumerable<int> ToBoxType(short[] value, Mapper mapper) { return value.Cast<int>(); }
    protected override short[] ToValueType(IEnumerable<int> value, Type type, Mapper mapper) { return value.Cast<short>().ToArray(); }
  }

  [Transformer("1AAC2625-356C-40BC-8CB4-15CB3D047EB8", 304)]
  internal sealed class UShortArrayTransformer : UnsignedIntArrayBoxTransformer<ushort[]> {
    protected override IEnumerable<uint> ToBoxType(ushort[] value, Mapper mapper) { return value.Cast<uint>(); }
    protected override ushort[] ToValueType(IEnumerable<uint> value, Type type, Mapper mapper) { return value.Cast<ushort>().ToArray(); }
  }

  [Transformer("12F19098-5D49-4C23-8897-69087F1C146D", 305)]
  internal sealed class CharArrayTransformer : UnsignedIntArrayBoxTransformer<char[]> {
    protected override IEnumerable<uint> ToBoxType(char[] value, Mapper mapper) { return value.Cast<uint>(); }
    protected override char[] ToValueType(IEnumerable<uint> value, Type type, Mapper mapper) { return value.Cast<char>().ToArray(); }
  }

  [Transformer("5F6DC3BC-4433-4AE9-A636-4BD126F7DACD", 306)]
  internal sealed class IntArrayTransformer : IntArrayBoxTransformer<int[]> {
    protected override IEnumerable<int> ToBoxType(int[] value, Mapper mapper) { return value; }
    protected override int[] ToValueType(IEnumerable<int> value, Type type, Mapper mapper) { return value.ToArray(); }
  }

  [Transformer("3F10274F-D350-4C82-89EA-A5EB36D4EFCC", 307)]
  internal sealed class UIntArrayTransformer : UnsignedIntArrayBoxTransformer<uint[]> {
    protected override IEnumerable<uint> ToBoxType(uint[] value, Mapper mapper) { return value; }
    protected override uint[] ToValueType(IEnumerable<uint> value, Type type, Mapper mapper) { return value.ToArray(); }
  }

  [Transformer("E9D550E2-57F7-47F3-803D-37A619DA1A5C", 308)]
  internal sealed class LongArrayTransformer : LongArrayBoxTransformer<long[]> {
    protected override IEnumerable<long> ToBoxType(long[] value, Mapper mapper) { return value; }
    protected override long[] ToValueType(IEnumerable<long> value, Type type, Mapper mapper) { return value.ToArray(); }
  }

  [Transformer("C02A205B-2176-4282-AC2B-ADEF96DDBE24", 309)]
  internal sealed class ULongArrayTransformer : UnsignedLongArrayBoxTransformer<ulong[]> {
    protected override IEnumerable<ulong> ToBoxType(ulong[] value, Mapper mapper) { return value; }
    protected override ulong[] ToValueType(IEnumerable<ulong> value, Type type, Mapper mapper) { return value.ToArray(); }
  }

  [Transformer("3C4590D9-C76E-4AFB-98FD-E50D3D051648", 310)]
  internal sealed class FloatArrayTransformer : FloatArrayBoxTransformer<float[]> {
    protected override IEnumerable<float> ToBoxType(float[] value, Mapper mapper) { return value; }
    protected override float[] ToValueType(IEnumerable<float> value, Type type, Mapper mapper) { return value.ToArray(); }
  }

  [Transformer("FB98C399-9323-4470-9A85-9186C2B2D5D4", 311)]
  internal sealed class DoubleArrayTransformer : DoubleArrayBoxTransformer<double[]> {
    protected override IEnumerable<double> ToBoxType(double[] value, Mapper mapper) { return value; }
    protected override double[] ToValueType(IEnumerable<double> value, Type type, Mapper mapper) { return value.ToArray(); }
  }

  [Transformer("68332513-9CF1-47FA-A093-6DDB663186EC", 312)]
  internal sealed class StringArrayTransformer : StringArrayBoxTransformer<string[]> {
    protected override IEnumerable<string> ToBoxType(string[] value, Mapper mapper) { return value; }
    protected override string[] ToValueType(IEnumerable<string> value, Type type, Mapper mapper) { return value.ToArray(); }
  }

  [Transformer("C83F0B5A-68D8-4271-81F9-FF259FC6F126", 400)]
  internal sealed class GenericArrayTransformer : UnsignedIntArrayBoxTransformer<object> {
    public override bool CanTransformType(Type type) {
      return type.IsArray;
    }
    protected override IEnumerable<uint> ToBoxType(object value, Mapper mapper) {
      var arr = (object[])value;
      return arr.Select(x => mapper.GetBoxId(x));
    }
    protected override object ToValueType(IEnumerable<uint> value, Type type, Mapper mapper) {
      return value.Select(x => mapper.GetObject(x)).ToArray();
    }
  }
  #endregion
}