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// Copyright (c) All contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System;
using System.Buffers;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
using System.Text;
using MessagePack.Formatters;
using MessagePack.Internal;
using MessagePack.Resolvers;
#pragma warning disable SA1403 // File may only contain a single namespace
#pragma warning disable SA1509 // Opening braces should not be preceded by blank line
namespace MessagePack.Resolvers
{
public sealed class BuiltinResolver : IFormatterResolver
{
/// <summary>
/// The singleton instance that can be used.
/// </summary>
public static readonly BuiltinResolver Instance = new BuiltinResolver();
private BuiltinResolver()
{
}
public IMessagePackFormatter<T> GetFormatter<T>()
{
return FormatterCache<T>.Formatter;
}
private static class FormatterCache<T>
{
public static readonly IMessagePackFormatter<T> Formatter;
static FormatterCache()
{
// Reduce IL2CPP code generate size(don't write long code in <T>)
Formatter = (IMessagePackFormatter<T>)BuiltinResolverGetFormatterHelper.GetFormatter(typeof(T));
}
}
}
}
namespace MessagePack.Internal
{
internal static class BuiltinResolverGetFormatterHelper
{
private static readonly Dictionary<Type, object> FormatterMap = new Dictionary<Type, object>()
{
// Primitive
{ typeof(Int16), Int16Formatter.Instance },
{ typeof(Int32), Int32Formatter.Instance },
{ typeof(Int64), Int64Formatter.Instance },
{ typeof(UInt16), UInt16Formatter.Instance },
{ typeof(UInt32), UInt32Formatter.Instance },
{ typeof(UInt64), UInt64Formatter.Instance },
{ typeof(Single), SingleFormatter.Instance },
{ typeof(Double), DoubleFormatter.Instance },
{ typeof(bool), BooleanFormatter.Instance },
{ typeof(byte), ByteFormatter.Instance },
{ typeof(sbyte), SByteFormatter.Instance },
{ typeof(DateTime), DateTimeFormatter.Instance },
{ typeof(char), CharFormatter.Instance },
// Nulllable Primitive
{ typeof(Int16?), NullableInt16Formatter.Instance },
{ typeof(Int32?), NullableInt32Formatter.Instance },
{ typeof(Int64?), NullableInt64Formatter.Instance },
{ typeof(UInt16?), NullableUInt16Formatter.Instance },
{ typeof(UInt32?), NullableUInt32Formatter.Instance },
{ typeof(UInt64?), NullableUInt64Formatter.Instance },
{ typeof(Single?), NullableSingleFormatter.Instance },
{ typeof(Double?), NullableDoubleFormatter.Instance },
{ typeof(bool?), NullableBooleanFormatter.Instance },
{ typeof(byte?), NullableByteFormatter.Instance },
{ typeof(sbyte?), NullableSByteFormatter.Instance },
{ typeof(DateTime?), NullableDateTimeFormatter.Instance },
{ typeof(char?), NullableCharFormatter.Instance },
// StandardClassLibraryFormatter
{ typeof(string), NullableStringFormatter.Instance },
{ typeof(decimal), DecimalFormatter.Instance },
{ typeof(decimal?), new StaticNullableFormatter<decimal>(DecimalFormatter.Instance) },
{ typeof(TimeSpan), TimeSpanFormatter.Instance },
{ typeof(TimeSpan?), new StaticNullableFormatter<TimeSpan>(TimeSpanFormatter.Instance) },
{ typeof(DateTimeOffset), DateTimeOffsetFormatter.Instance },
{ typeof(DateTimeOffset?), new StaticNullableFormatter<DateTimeOffset>(DateTimeOffsetFormatter.Instance) },
{ typeof(Guid), GuidFormatter.Instance },
{ typeof(Guid?), new StaticNullableFormatter<Guid>(GuidFormatter.Instance) },
{ typeof(Uri), UriFormatter.Instance },
{ typeof(Version), VersionFormatter.Instance },
{ typeof(StringBuilder), StringBuilderFormatter.Instance },
{ typeof(BitArray), BitArrayFormatter.Instance },
{ typeof(Type), TypeFormatter<Type>.Instance },
// special primitive
{ typeof(byte[]), ByteArrayFormatter.Instance },
// Nil
{ typeof(Nil), NilFormatter.Instance },
{ typeof(Nil?), NullableNilFormatter.Instance },
// optimized primitive array formatter
{ typeof(Int16[]), Int16ArrayFormatter.Instance },
{ typeof(Int32[]), Int32ArrayFormatter.Instance },
{ typeof(Int64[]), Int64ArrayFormatter.Instance },
{ typeof(UInt16[]), UInt16ArrayFormatter.Instance },
{ typeof(UInt32[]), UInt32ArrayFormatter.Instance },
{ typeof(UInt64[]), UInt64ArrayFormatter.Instance },
{ typeof(Single[]), SingleArrayFormatter.Instance },
{ typeof(Double[]), DoubleArrayFormatter.Instance },
{ typeof(Boolean[]), BooleanArrayFormatter.Instance },
{ typeof(SByte[]), SByteArrayFormatter.Instance },
{ typeof(DateTime[]), DateTimeArrayFormatter.Instance },
{ typeof(Char[]), CharArrayFormatter.Instance },
{ typeof(string[]), NullableStringArrayFormatter.Instance },
// well known collections
{ typeof(List<Int16>), new ListFormatter<Int16>() },
{ typeof(List<Int32>), new ListFormatter<Int32>() },
{ typeof(List<Int64>), new ListFormatter<Int64>() },
{ typeof(List<UInt16>), new ListFormatter<UInt16>() },
{ typeof(List<UInt32>), new ListFormatter<UInt32>() },
{ typeof(List<UInt64>), new ListFormatter<UInt64>() },
{ typeof(List<Single>), new ListFormatter<Single>() },
{ typeof(List<Double>), new ListFormatter<Double>() },
{ typeof(List<Boolean>), new ListFormatter<Boolean>() },
{ typeof(List<byte>), new ListFormatter<byte>() },
{ typeof(List<SByte>), new ListFormatter<SByte>() },
{ typeof(List<DateTime>), new ListFormatter<DateTime>() },
{ typeof(List<Char>), new ListFormatter<Char>() },
{ typeof(List<string>), new ListFormatter<string>() },
{ typeof(object[]), new ArrayFormatter<object>() },
{ typeof(List<object>), new ListFormatter<object>() },
{ typeof(Memory<byte>), ByteMemoryFormatter.Instance },
{ typeof(Memory<byte>?), new StaticNullableFormatter<Memory<byte>>(ByteMemoryFormatter.Instance) },
{ typeof(ReadOnlyMemory<byte>), ByteReadOnlyMemoryFormatter.Instance },
{ typeof(ReadOnlyMemory<byte>?), new StaticNullableFormatter<ReadOnlyMemory<byte>>(ByteReadOnlyMemoryFormatter.Instance) },
{ typeof(ReadOnlySequence<byte>), ByteReadOnlySequenceFormatter.Instance },
{ typeof(ReadOnlySequence<byte>?), new StaticNullableFormatter<ReadOnlySequence<byte>>(ByteReadOnlySequenceFormatter.Instance) },
{ typeof(ArraySegment<byte>), ByteArraySegmentFormatter.Instance },
{ typeof(ArraySegment<byte>?), new StaticNullableFormatter<ArraySegment<byte>>(ByteArraySegmentFormatter.Instance) },
{ typeof(System.Numerics.BigInteger), BigIntegerFormatter.Instance },
{ typeof(System.Numerics.BigInteger?), new StaticNullableFormatter<System.Numerics.BigInteger>(BigIntegerFormatter.Instance) },
{ typeof(System.Numerics.Complex), ComplexFormatter.Instance },
{ typeof(System.Numerics.Complex?), new StaticNullableFormatter<System.Numerics.Complex>(ComplexFormatter.Instance) },
#if NET5_0_OR_GREATER
{ typeof(System.Half), HalfFormatter.Instance },
#endif
};
internal static object GetFormatter(Type t)
{
object formatter;
if (FormatterMap.TryGetValue(t, out formatter))
{
return formatter;
}
if (typeof(Type).IsAssignableFrom(t))
{
return typeof(TypeFormatter<>).MakeGenericType(t).GetField(nameof(TypeFormatter<Type>.Instance)).GetValue(null);
}
return null;
}
}
}
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