using System;
using System.Buffers;
using System.Collections;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Numerics;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
using System.Security;
using System.Security.Cryptography;
using System.Security.Permissions;
using System.Threading;
using Microsoft.CodeAnalysis;
using MonoMod;
using MonoMod.Backports.ILHelpers;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: CLSCompliant(true)]
[assembly: TargetFramework(".NETFramework,Version=v4.5.2", FrameworkDisplayName = ".NET Framework 4.5.2")]
[assembly: AssemblyCompany("0x0ade, DaNike")]
[assembly: AssemblyConfiguration("Release")]
[assembly: AssemblyCopyright("Copyright 2024 0x0ade, DaNike")]
[assembly: AssemblyDescription("A set of backports of new BCL features to all frameworks which MonoMod supports.")]
[assembly: AssemblyFileVersion("1.1.2.0")]
[assembly: AssemblyInformationalVersion("1.1.2+a1b82852b")]
[assembly: AssemblyProduct("MonoMod.Backports")]
[assembly: AssemblyTitle("MonoMod.Backports")]
[assembly: AssemblyMetadata("RepositoryUrl", "https://github.com/MonoMod/MonoMod.git")]
[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
[assembly: AssemblyVersion("1.1.2.0")]
[assembly: TypeForwardedTo(typeof(ConcurrentBag<>))]
[assembly: TypeForwardedTo(typeof(ConcurrentDictionary<, >))]
[assembly: TypeForwardedTo(typeof(ConcurrentQueue<>))]
[assembly: TypeForwardedTo(typeof(ConcurrentStack<>))]
[assembly: TypeForwardedTo(typeof(EnumerablePartitionerOptions))]
[assembly: TypeForwardedTo(typeof(IProducerConsumerCollection<>))]
[assembly: TypeForwardedTo(typeof(OrderablePartitioner<>))]
[assembly: TypeForwardedTo(typeof(Partitioner))]
[assembly: TypeForwardedTo(typeof(Partitioner<>))]
[assembly: TypeForwardedTo(typeof(IReadOnlyCollection<>))]
[assembly: TypeForwardedTo(typeof(IReadOnlyList<>))]
[assembly: TypeForwardedTo(typeof(IStructuralComparable))]
[assembly: TypeForwardedTo(typeof(IStructuralEquatable))]
[assembly: TypeForwardedTo(typeof(IntrospectionExtensions))]
[assembly: TypeForwardedTo(typeof(IReflectableType))]
[assembly: TypeForwardedTo(typeof(TypeDelegator))]
[assembly: TypeForwardedTo(typeof(TypeInfo))]
[assembly: TypeForwardedTo(typeof(CallerFilePathAttribute))]
[assembly: TypeForwardedTo(typeof(CallerLineNumberAttribute))]
[assembly: TypeForwardedTo(typeof(CallerMemberNameAttribute))]
[assembly: TypeForwardedTo(typeof(ConditionalWeakTable<, >))]
[assembly: TypeForwardedTo(typeof(TupleElementNamesAttribute))]
[assembly: TypeForwardedTo(typeof(DefaultDllImportSearchPathsAttribute))]
[assembly: TypeForwardedTo(typeof(DllImportSearchPath))]
[assembly: TypeForwardedTo(typeof(SpinLock))]
[assembly: TypeForwardedTo(typeof(SpinWait))]
[assembly: TypeForwardedTo(typeof(ThreadLocal<>))]
[assembly: TypeForwardedTo(typeof(Volatile))]
[assembly: TypeForwardedTo(typeof(Tuple))]
[assembly: TypeForwardedTo(typeof(Tuple<>))]
[assembly: TypeForwardedTo(typeof(Tuple<, >))]
[assembly: TypeForwardedTo(typeof(Tuple<, , >))]
[assembly: TypeForwardedTo(typeof(Tuple<, , , >))]
[assembly: TypeForwardedTo(typeof(Tuple<, , , , >))]
[assembly: TypeForwardedTo(typeof(Tuple<, , , , , >))]
[assembly: TypeForwardedTo(typeof(Tuple<, , , , , , >))]
[assembly: TypeForwardedTo(typeof(Tuple<, , , , , , , >))]
[assembly: TypeForwardedTo(typeof(ValueTuple))]
[assembly: TypeForwardedTo(typeof(ValueTuple<>))]
[assembly: TypeForwardedTo(typeof(ValueTuple<, >))]
[assembly: TypeForwardedTo(typeof(ValueTuple<, , >))]
[assembly: TypeForwardedTo(typeof(ValueTuple<, , , >))]
[assembly: TypeForwardedTo(typeof(ValueTuple<, , , , >))]
[assembly: TypeForwardedTo(typeof(ValueTuple<, , , , , >))]
[assembly: TypeForwardedTo(typeof(ValueTuple<, , , , , , >))]
[assembly: TypeForwardedTo(typeof(ValueTuple<, , , , , , , >))]
[assembly: TypeForwardedTo(typeof(WeakReference<>))]
[module: UnverifiableCode]
[module: RefSafetyRules(11)]
namespace Microsoft.CodeAnalysis
{
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.Embedded]
	internal sealed class EmbeddedAttribute : Attribute
	{
	}
}
namespace System.Runtime.CompilerServices
{
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.Embedded]
	internal sealed class IsReadOnlyAttribute : Attribute
	{
	}
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.Embedded]
	internal sealed class IsByRefLikeAttribute : Attribute
	{
	}
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.Embedded]
	[AttributeUsage(AttributeTargets.Class | AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Event | AttributeTargets.Parameter | AttributeTargets.ReturnValue | AttributeTargets.GenericParameter, AllowMultiple = false, Inherited = false)]
	internal sealed class NullableAttribute : Attribute
	{
		public readonly byte[] NullableFlags;

		public NullableAttribute(byte P_0)
		{
			NullableFlags = new byte[1] { P_0 };
		}

		public NullableAttribute(byte[] P_0)
		{
			NullableFlags = P_0;
		}
	}
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.Embedded]
	[AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Method | AttributeTargets.Interface | AttributeTargets.Delegate, AllowMultiple = false, Inherited = false)]
	internal sealed class NullableContextAttribute : Attribute
	{
		public readonly byte Flag;

		public NullableContextAttribute(byte P_0)
		{
			Flag = P_0;
		}
	}
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.Embedded]
	[AttributeUsage(AttributeTargets.Class | AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Event | AttributeTargets.Parameter | AttributeTargets.ReturnValue | AttributeTargets.GenericParameter, AllowMultiple = false, Inherited = false)]
	internal sealed class NativeIntegerAttribute : Attribute
	{
		public readonly bool[] TransformFlags;

		public NativeIntegerAttribute()
		{
			TransformFlags = new bool[1] { true };
		}

		public NativeIntegerAttribute(bool[] P_0)
		{
			TransformFlags = P_0;
		}
	}
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.Embedded]
	[AttributeUsage(AttributeTargets.Module, AllowMultiple = false, Inherited = false)]
	internal sealed class RefSafetyRulesAttribute : Attribute
	{
		public readonly int Version;

		public RefSafetyRulesAttribute(int P_0)
		{
			Version = P_0;
		}
	}
}
internal static class AssemblyInfo
{
	public const string AssemblyName = "MonoMod.Backports";

	public const string AssemblyVersion = "1.1.2";
}
namespace MonoMod.SourceGen.Attributes
{
	[AttributeUsage(AttributeTargets.Class)]
	internal sealed class EmitILOverloadsAttribute : Attribute
	{
		public EmitILOverloadsAttribute(string filename, string kind)
		{
		}
	}
	internal static class ILOverloadKind
	{
		public const string Cursor = "ILCursor";

		public const string Matcher = "ILMatcher";
	}
}
namespace MonoMod.Backports
{
	public static class MethodImplOptionsEx
	{
		public const MethodImplOptions Unmanaged = MethodImplOptions.Unmanaged;

		public const MethodImplOptions NoInlining = MethodImplOptions.NoInlining;

		public const MethodImplOptions ForwardRef = MethodImplOptions.ForwardRef;

		public const MethodImplOptions Synchronized = MethodImplOptions.Synchronized;

		public const MethodImplOptions NoOptimization = MethodImplOptions.NoOptimization;

		public const MethodImplOptions PreserveSig = MethodImplOptions.PreserveSig;

		public const MethodImplOptions AggressiveInlining = MethodImplOptions.AggressiveInlining;

		public const MethodImplOptions AggressiveOptimization = MethodImplOptions.AggressiveOptimization;

		public const MethodImplOptions InternalCall = MethodImplOptions.InternalCall;
	}
}
namespace System
{
	public static class ArrayEx
	{
		private static class TypeHolder<T>
		{
			public static readonly T[] Empty = new T[0];
		}

		public static int MaxLength => 1879048191;

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static T[] Empty<T>()
		{
			return TypeHolder<T>.Empty;
		}
	}
	public readonly struct SequencePosition : IEquatable<SequencePosition>
	{
		private readonly object? _object;

		private readonly int _integer;

		public SequencePosition(object? @object, int integer)
		{
			_object = @object;
			_integer = integer;
		}

		[EditorBrowsable(EditorBrowsableState.Never)]
		public object? GetObject()
		{
			return _object;
		}

		[EditorBrowsable(EditorBrowsableState.Never)]
		public int GetInteger()
		{
			return _integer;
		}

		public bool Equals(SequencePosition other)
		{
			if (_integer == other._integer)
			{
				return object.Equals(_object, other._object);
			}
			return false;
		}

		[EditorBrowsable(EditorBrowsableState.Never)]
		public override bool Equals(object? obj)
		{
			if (obj is SequencePosition other)
			{
				return Equals(other);
			}
			return false;
		}

		[EditorBrowsable(EditorBrowsableState.Never)]
		public override int GetHashCode()
		{
			return HashCode.Combine(_object, _integer);
		}
	}
	public static class EnvironmentEx
	{
		public static int CurrentManagedThreadId => Environment.CurrentManagedThreadId;
	}
	public sealed class Gen2GcCallback : CriticalFinalizerObject
	{
		private readonly Func<bool>? _callback0;

		private readonly Func<object, bool>? _callback1;

		private GCHandle _weakTargetObj;

		private Gen2GcCallback(Func<bool> callback)
		{
			_callback0 = callback;
		}

		private Gen2GcCallback(Func<object, bool> callback, object targetObj)
		{
			_callback1 = callback;
			_weakTargetObj = GCHandle.Alloc(targetObj, GCHandleType.Weak);
		}

		public static void Register(Func<bool> callback)
		{
			new Gen2GcCallback(callback);
		}

		public static void Register(Func<object, bool> callback, object targetObj)
		{
			new Gen2GcCallback(callback, targetObj);
		}

		~Gen2GcCallback()
		{
			if (_weakTargetObj.IsAllocated)
			{
				object target = _weakTargetObj.Target;
				if (target == null)
				{
					_weakTargetObj.Free();
					return;
				}
				try
				{
					if (!_callback1(target))
					{
						_weakTargetObj.Free();
						return;
					}
				}
				catch
				{
				}
			}
			else
			{
				try
				{
					if (!_callback0())
					{
						return;
					}
				}
				catch
				{
				}
			}
			GC.ReRegisterForFinalize(this);
		}
	}
	public struct HashCode
	{
		private static readonly uint s_seed = GenerateGlobalSeed();

		private const uint Prime1 = 2654435761u;

		private const uint Prime2 = 2246822519u;

		private const uint Prime3 = 3266489917u;

		private const uint Prime4 = 668265263u;

		private const uint Prime5 = 374761393u;

		private uint _v1;

		private uint _v2;

		private uint _v3;

		private uint _v4;

		private uint _queue1;

		private uint _queue2;

		private uint _queue3;

		private uint _length;

		private static uint GenerateGlobalSeed()
		{
			Span<byte> destination = stackalloc byte[4];
			using (RandomNumberGenerator randomNumberGenerator = RandomNumberGenerator.Create())
			{
				byte[] array = new byte[destination.Length];
				randomNumberGenerator.GetBytes(array);
				MemoryExtensions.AsSpan(array).CopyTo(destination);
			}
			return Unsafe.ReadUnaligned<uint>(ref destination[0]);
		}

		public static int Combine<T1>(T1 value1)
		{
			uint queuedValue = (uint)(value1?.GetHashCode() ?? 0);
			return (int)MixFinal(QueueRound(MixEmptyState() + 4, queuedValue));
		}

		public static int Combine<T1, T2>(T1 value1, T2 value2)
		{
			uint queuedValue = (uint)(value1?.GetHashCode() ?? 0);
			uint queuedValue2 = (uint)(value2?.GetHashCode() ?? 0);
			return (int)MixFinal(QueueRound(QueueRound(MixEmptyState() + 8, queuedValue), queuedValue2));
		}

		public static int Combine<T1, T2, T3>(T1 value1, T2 value2, T3 value3)
		{
			uint queuedValue = (uint)(value1?.GetHashCode() ?? 0);
			uint queuedValue2 = (uint)(value2?.GetHashCode() ?? 0);
			uint queuedValue3 = (uint)(value3?.GetHashCode() ?? 0);
			return (int)MixFinal(QueueRound(QueueRound(QueueRound(MixEmptyState() + 12, queuedValue), queuedValue2), queuedValue3));
		}

		public static int Combine<T1, T2, T3, T4>(T1 value1, T2 value2, T3 value3, T4 value4)
		{
			uint input = (uint)(value1?.GetHashCode() ?? 0);
			uint input2 = (uint)(value2?.GetHashCode() ?? 0);
			uint input3 = (uint)(value3?.GetHashCode() ?? 0);
			uint input4 = (uint)(value4?.GetHashCode() ?? 0);
			Initialize(out var v, out var v2, out var v3, out var v4);
			v = Round(v, input);
			v2 = Round(v2, input2);
			v3 = Round(v3, input3);
			v4 = Round(v4, input4);
			return (int)MixFinal(MixState(v, v2, v3, v4) + 16);
		}

		public static int Combine<T1, T2, T3, T4, T5>(T1 value1, T2 value2, T3 value3, T4 value4, T5 value5)
		{
			uint input = (uint)(value1?.GetHashCode() ?? 0);
			uint input2 = (uint)(value2?.GetHashCode() ?? 0);
			uint input3 = (uint)(value3?.GetHashCode() ?? 0);
			uint input4 = (uint)(value4?.GetHashCode() ?? 0);
			uint queuedValue = (uint)(value5?.GetHashCode() ?? 0);
			Initialize(out var v, out var v2, out var v3, out var v4);
			v = Round(v, input);
			v2 = Round(v2, input2);
			v3 = Round(v3, input3);
			v4 = Round(v4, input4);
			return (int)MixFinal(QueueRound(MixState(v, v2, v3, v4) + 20, queuedValue));
		}

		public static int Combine<T1, T2, T3, T4, T5, T6>(T1 value1, T2 value2, T3 value3, T4 value4, T5 value5, T6 value6)
		{
			uint input = (uint)(value1?.GetHashCode() ?? 0);
			uint input2 = (uint)(value2?.GetHashCode() ?? 0);
			uint input3 = (uint)(value3?.GetHashCode() ?? 0);
			uint input4 = (uint)(value4?.GetHashCode() ?? 0);
			uint queuedValue = (uint)(value5?.GetHashCode() ?? 0);
			uint queuedValue2 = (uint)(value6?.GetHashCode() ?? 0);
			Initialize(out var v, out var v2, out var v3, out var v4);
			v = Round(v, input);
			v2 = Round(v2, input2);
			v3 = Round(v3, input3);
			v4 = Round(v4, input4);
			return (int)MixFinal(QueueRound(QueueRound(MixState(v, v2, v3, v4) + 24, queuedValue), queuedValue2));
		}

		public static int Combine<T1, T2, T3, T4, T5, T6, T7>(T1 value1, T2 value2, T3 value3, T4 value4, T5 value5, T6 value6, T7 value7)
		{
			uint input = (uint)(value1?.GetHashCode() ?? 0);
			uint input2 = (uint)(value2?.GetHashCode() ?? 0);
			uint input3 = (uint)(value3?.GetHashCode() ?? 0);
			uint input4 = (uint)(value4?.GetHashCode() ?? 0);
			uint queuedValue = (uint)(value5?.GetHashCode() ?? 0);
			uint queuedValue2 = (uint)(value6?.GetHashCode() ?? 0);
			uint queuedValue3 = (uint)(value7?.GetHashCode() ?? 0);
			Initialize(out var v, out var v2, out var v3, out var v4);
			v = Round(v, input);
			v2 = Round(v2, input2);
			v3 = Round(v3, input3);
			v4 = Round(v4, input4);
			return (int)MixFinal(QueueRound(QueueRound(QueueRound(MixState(v, v2, v3, v4) + 28, queuedValue), queuedValue2), queuedValue3));
		}

		public static int Combine<T1, T2, T3, T4, T5, T6, T7, T8>(T1 value1, T2 value2, T3 value3, T4 value4, T5 value5, T6 value6, T7 value7, T8 value8)
		{
			uint input = (uint)(value1?.GetHashCode() ?? 0);
			uint input2 = (uint)(value2?.GetHashCode() ?? 0);
			uint input3 = (uint)(value3?.GetHashCode() ?? 0);
			uint input4 = (uint)(value4?.GetHashCode() ?? 0);
			uint input5 = (uint)(value5?.GetHashCode() ?? 0);
			uint input6 = (uint)(value6?.GetHashCode() ?? 0);
			uint input7 = (uint)(value7?.GetHashCode() ?? 0);
			uint input8 = (uint)(value8?.GetHashCode() ?? 0);
			Initialize(out var v, out var v2, out var v3, out var v4);
			v = Round(v, input);
			v2 = Round(v2, input2);
			v3 = Round(v3, input3);
			v4 = Round(v4, input4);
			v = Round(v, input5);
			v2 = Round(v2, input6);
			v3 = Round(v3, input7);
			v4 = Round(v4, input8);
			return (int)MixFinal(MixState(v, v2, v3, v4) + 32);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		private static void Initialize(out uint v1, out uint v2, out uint v3, out uint v4)
		{
			v1 = (uint)((int)s_seed + -1640531535 + -2048144777);
			v2 = s_seed + 2246822519u;
			v3 = s_seed;
			v4 = s_seed - 2654435761u;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		private static uint Round(uint hash, uint input)
		{
			return BitOperations.RotateLeft(hash + (uint)((int)input * -2048144777), 13) * 2654435761u;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		private static uint QueueRound(uint hash, uint queuedValue)
		{
			return BitOperations.RotateLeft(hash + (uint)((int)queuedValue * -1028477379), 17) * 668265263;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		private static uint MixState(uint v1, uint v2, uint v3, uint v4)
		{
			return BitOperations.RotateLeft(v1, 1) + BitOperations.RotateLeft(v2, 7) + BitOperations.RotateLeft(v3, 12) + BitOperations.RotateLeft(v4, 18);
		}

		private static uint MixEmptyState()
		{
			return s_seed + 374761393;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		private static uint MixFinal(uint hash)
		{
			hash ^= hash >> 15;
			hash *= 2246822519u;
			hash ^= hash >> 13;
			hash *= 3266489917u;
			hash ^= hash >> 16;
			return hash;
		}

		public void Add<T>(T value)
		{
			Add(value?.GetHashCode() ?? 0);
		}

		public void Add<T>(T value, IEqualityComparer<T>? comparer)
		{
			Add((value != null) ? (comparer?.GetHashCode(value) ?? value.GetHashCode()) : 0);
		}

		public void AddBytes(ReadOnlySpan<byte> value)
		{
			ref byte reference = ref MemoryMarshal.GetReference(value);
			ref byte reference2 = ref Unsafe.Add(ref reference, value.Length);
			while (Unsafe.ByteOffset(ref reference, ref reference2) >= 4)
			{
				Add(Unsafe.ReadUnaligned<int>(ref reference));
				reference = ref Unsafe.Add(ref reference, 4);
			}
			while (Unsafe.IsAddressLessThan(ref reference, ref reference2))
			{
				Add((int)reference);
				reference = ref Unsafe.Add(ref reference, 1);
			}
		}

		private void Add(int value)
		{
			uint num = _length++;
			switch (num % 4)
			{
			case 0u:
				_queue1 = (uint)value;
				return;
			case 1u:
				_queue2 = (uint)value;
				return;
			case 2u:
				_queue3 = (uint)value;
				return;
			}
			if (num == 3)
			{
				Initialize(out _v1, out _v2, out _v3, out _v4);
			}
			_v1 = Round(_v1, _queue1);
			_v2 = Round(_v2, _queue2);
			_v3 = Round(_v3, _queue3);
			_v4 = Round(_v4, (uint)value);
		}

		public int ToHashCode()
		{
			uint length = _length;
			uint num = length % 4;
			uint num2 = ((length < 4) ? MixEmptyState() : MixState(_v1, _v2, _v3, _v4));
			num2 += length * 4;
			if (num != 0)
			{
				num2 = QueueRound(num2, _queue1);
				if (num > 1)
				{
					num2 = QueueRound(num2, _queue2);
					if (num > 2)
					{
						num2 = QueueRound(num2, _queue3);
					}
				}
			}
			return (int)MixFinal(num2);
		}

		[Obsolete("HashCode is a mutable struct and should not be compared with other HashCodes. Use ToHashCode to retrieve the computed hash code.", true)]
		[EditorBrowsable(EditorBrowsableState.Never)]
		public override int GetHashCode()
		{
			throw new NotSupportedException("GetHashCode on HashCode is not supported");
		}

		[Obsolete("HashCode is a mutable struct and should not be compared with other HashCodes.", true)]
		[EditorBrowsable(EditorBrowsableState.Never)]
		public override bool Equals(object? obj)
		{
			throw new NotSupportedException("Equals on HashCode is not supported");
		}
	}
	public static class MathEx
	{
		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static byte Clamp(byte value, byte min, byte max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static decimal Clamp(decimal value, decimal min, decimal max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static double Clamp(double value, double min, double max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static short Clamp(short value, short min, short max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int Clamp(int value, int min, int max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static long Clamp(long value, long min, long max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static nint Clamp(nint value, nint min, nint max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		[CLSCompliant(false)]
		public static sbyte Clamp(sbyte value, sbyte min, sbyte max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static float Clamp(float value, float min, float max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		[CLSCompliant(false)]
		public static ushort Clamp(ushort value, ushort min, ushort max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		[CLSCompliant(false)]
		public static uint Clamp(uint value, uint min, uint max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		[CLSCompliant(false)]
		public static ulong Clamp(ulong value, ulong min, ulong max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		[CLSCompliant(false)]
		public static nuint Clamp(nuint value, nuint min, nuint max)
		{
			if (min > max)
			{
				ThrowMinMaxException(min, max);
			}
			if (value < min)
			{
				return min;
			}
			if (value > max)
			{
				return max;
			}
			return value;
		}

		[DoesNotReturn]
		private static void ThrowMinMaxException<T>(T min, T max)
		{
			throw new ArgumentException($"Minimum {min} is less than maximum {max}");
		}
	}
	[DebuggerTypeProxy(typeof(System.MemoryDebugView<>))]
	[DebuggerDisplay("{ToString(),raw}")]
	public readonly struct Memory<T>
	{
		private readonly object? _object;

		private readonly int _index;

		private readonly int _length;

		private const int RemoveFlagsBitMask = int.MaxValue;

		public static Memory<T> Empty => default(Memory<T>);

		public int Length => _length & 0x7FFFFFFF;

		public bool IsEmpty => (_length & 0x7FFFFFFF) == 0;

		public Span<T> Span
		{
			[MethodImpl(MethodImplOptions.AggressiveInlining)]
			get
			{
				Span<T> result;
				if (_index < 0)
				{
					result = ((MemoryManager<T>)_object).GetSpan();
					return result.Slice(_index & 0x7FFFFFFF, _length);
				}
				if (typeof(T) == typeof(char) && _object is string text)
				{
					result = new Span<T>(text, (IntPtr)RuntimeHelpers.OffsetToStringData, text.Length);
					return result.Slice(_index, _length);
				}
				if (_object != null)
				{
					return new Span<T>((T[])_object, _index, _length & 0x7FFFFFFF);
				}
				result = default(Span<T>);
				return result;
			}
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public Memory(T[]? array)
		{
			if (array == null)
			{
				this = default(Memory<T>);
				return;
			}
			if (default(T) == null && array.GetType() != typeof(T[]))
			{
				System.ThrowHelper.ThrowArrayTypeMismatchException();
			}
			_object = array;
			_index = 0;
			_length = array.Length;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		internal Memory(T[]? array, int start)
		{
			if (array == null)
			{
				if (start != 0)
				{
					System.ThrowHelper.ThrowArgumentOutOfRangeException();
				}
				this = default(Memory<T>);
				return;
			}
			if (default(T) == null && array.GetType() != typeof(T[]))
			{
				System.ThrowHelper.ThrowArrayTypeMismatchException();
			}
			if ((uint)start > (uint)array.Length)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException();
			}
			_object = array;
			_index = start;
			_length = array.Length - start;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public Memory(T[]? array, int start, int length)
		{
			if (array == null)
			{
				if (start != 0 || length != 0)
				{
					System.ThrowHelper.ThrowArgumentOutOfRangeException();
				}
				this = default(Memory<T>);
				return;
			}
			if (default(T) == null && array.GetType() != typeof(T[]))
			{
				System.ThrowHelper.ThrowArrayTypeMismatchException();
			}
			if ((uint)start > (uint)array.Length || (uint)length > (uint)(array.Length - start))
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException();
			}
			_object = array;
			_index = start;
			_length = length;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		internal Memory(MemoryManager<T> manager, int length)
		{
			if (length < 0)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException();
			}
			_object = manager;
			_index = int.MinValue;
			_length = length;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		internal Memory(MemoryManager<T> manager, int start, int length)
		{
			if (length < 0 || start < 0)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException();
			}
			_object = manager;
			_index = start | int.MinValue;
			_length = length;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		internal Memory(object? obj, int start, int length)
		{
			_object = obj;
			_index = start;
			_length = length;
		}

		public static implicit operator Memory<T>(T[]? array)
		{
			return new Memory<T>(array);
		}

		public static implicit operator Memory<T>(ArraySegment<T> segment)
		{
			return new Memory<T>(segment.Array, segment.Offset, segment.Count);
		}

		public static implicit operator ReadOnlyMemory<T>(Memory<T> memory)
		{
			return Unsafe.As<Memory<T>, ReadOnlyMemory<T>>(ref memory);
		}

		public override string ToString()
		{
			if (typeof(T) == typeof(char))
			{
				if (!(_object is string text))
				{
					return Span.ToString();
				}
				return text.Substring(_index, _length & 0x7FFFFFFF);
			}
			return $"System.Memory<{typeof(T).Name}>[{_length & 0x7FFFFFFF}]";
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public Memory<T> Slice(int start)
		{
			int length = _length;
			int num = length & 0x7FFFFFFF;
			if ((uint)start > (uint)num)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			return new Memory<T>(_object, _index + start, length - start);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public Memory<T> Slice(int start, int length)
		{
			int length2 = _length;
			int num = length2 & 0x7FFFFFFF;
			if ((uint)start > (uint)num || (uint)length > (uint)(num - start))
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException();
			}
			return new Memory<T>(_object, _index + start, length | (length2 & int.MinValue));
		}

		public void CopyTo(Memory<T> destination)
		{
			Span.CopyTo(destination.Span);
		}

		public bool TryCopyTo(Memory<T> destination)
		{
			return Span.TryCopyTo(destination.Span);
		}

		public unsafe MemoryHandle Pin()
		{
			if (_index < 0)
			{
				return ((MemoryManager<T>)_object).Pin(_index & 0x7FFFFFFF);
			}
			if (typeof(T) == typeof(char) && _object is string value)
			{
				GCHandle handle = GCHandle.Alloc(value, GCHandleType.Pinned);
				return new MemoryHandle(Unsafe.Add<T>((void*)handle.AddrOfPinnedObject(), _index), handle);
			}
			if (_object is T[] array)
			{
				if (_length < 0)
				{
					return new MemoryHandle(Unsafe.Add<T>(Unsafe.AsPointer(ref MemoryMarshal.GetReference<T>(array)), _index));
				}
				GCHandle handle2 = GCHandle.Alloc(array, GCHandleType.Pinned);
				return new MemoryHandle(Unsafe.Add<T>((void*)handle2.AddrOfPinnedObject(), _index), handle2);
			}
			return default(MemoryHandle);
		}

		public T[] ToArray()
		{
			return Span.ToArray();
		}

		[EditorBrowsable(EditorBrowsableState.Never)]
		public override bool Equals(object? obj)
		{
			if (obj is ReadOnlyMemory<T> readOnlyMemory)
			{
				return readOnlyMemory.Equals(this);
			}
			if (obj is Memory<T> other)
			{
				return Equals(other);
			}
			return false;
		}

		public bool Equals(Memory<T> other)
		{
			if (_object == other._object && _index == other._index)
			{
				return _length == other._length;
			}
			return false;
		}

		[EditorBrowsable(EditorBrowsableState.Never)]
		public override int GetHashCode()
		{
			if (_object == null)
			{
				return 0;
			}
			return HashCode.Combine(_object, _index, _length);
		}
	}
	internal sealed class MemoryDebugView<T>
	{
		private readonly ReadOnlyMemory<T> _memory;

		[DebuggerBrowsable(DebuggerBrowsableState.RootHidden)]
		public T[] Items => _memory.ToArray();

		public MemoryDebugView(Memory<T> memory)
		{
			_memory = memory;
		}

		public MemoryDebugView(ReadOnlyMemory<T> memory)
		{
			_memory = memory;
		}
	}
	public static class MemoryExtensions
	{
		public static ReadOnlySpan<char> Trim(this ReadOnlySpan<char> span)
		{
			return span.TrimStart().TrimEnd();
		}

		public static ReadOnlySpan<char> TrimStart(this ReadOnlySpan<char> span)
		{
			int i;
			for (i = 0; i < span.Length && char.IsWhiteSpace(span[i]); i++)
			{
			}
			return span.Slice(i);
		}

		public static ReadOnlySpan<char> TrimEnd(this ReadOnlySpan<char> span)
		{
			int num = span.Length - 1;
			while (num >= 0 && char.IsWhiteSpace(span[num]))
			{
				num--;
			}
			return span.Slice(0, num + 1);
		}

		public static ReadOnlySpan<char> Trim(this ReadOnlySpan<char> span, char trimChar)
		{
			return span.TrimStart(trimChar).TrimEnd(trimChar);
		}

		public static ReadOnlySpan<char> TrimStart(this ReadOnlySpan<char> span, char trimChar)
		{
			int i;
			for (i = 0; i < span.Length && span[i] == trimChar; i++)
			{
			}
			return span.Slice(i);
		}

		public static ReadOnlySpan<char> TrimEnd(this ReadOnlySpan<char> span, char trimChar)
		{
			int num = span.Length - 1;
			while (num >= 0 && span[num] == trimChar)
			{
				num--;
			}
			return span.Slice(0, num + 1);
		}

		public static ReadOnlySpan<char> Trim(this ReadOnlySpan<char> span, ReadOnlySpan<char> trimChars)
		{
			return span.TrimStart(trimChars).TrimEnd(trimChars);
		}

		public static ReadOnlySpan<char> TrimStart(this ReadOnlySpan<char> span, ReadOnlySpan<char> trimChars)
		{
			if (trimChars.IsEmpty)
			{
				return span.TrimStart();
			}
			int i;
			for (i = 0; i < span.Length; i++)
			{
				int num = 0;
				while (num < trimChars.Length)
				{
					if (span[i] != trimChars[num])
					{
						num++;
						continue;
					}
					goto IL_003c;
				}
				break;
				IL_003c:;
			}
			return span.Slice(i);
		}

		public static ReadOnlySpan<char> TrimEnd(this ReadOnlySpan<char> span, ReadOnlySpan<char> trimChars)
		{
			if (trimChars.IsEmpty)
			{
				return span.TrimEnd();
			}
			int num;
			for (num = span.Length - 1; num >= 0; num--)
			{
				int num2 = 0;
				while (num2 < trimChars.Length)
				{
					if (span[num] != trimChars[num2])
					{
						num2++;
						continue;
					}
					goto IL_0044;
				}
				break;
				IL_0044:;
			}
			return span.Slice(0, num + 1);
		}

		public static bool IsWhiteSpace(this ReadOnlySpan<char> span)
		{
			for (int i = 0; i < span.Length; i++)
			{
				if (!char.IsWhiteSpace(span[i]))
				{
					return false;
				}
			}
			return true;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int IndexOf<T>(this Span<T> span, T value) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.IndexOf(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value), span.Length);
			}
			if (typeof(T) == typeof(char))
			{
				return System.SpanHelpers.IndexOf(ref Unsafe.As<T, char>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, char>(ref value), span.Length);
			}
			return System.SpanHelpers.IndexOf(ref MemoryMarshal.GetReference(span), value, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int IndexOf<T>(this Span<T> span, ReadOnlySpan<T> value) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.IndexOf(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(value)), value.Length);
			}
			return System.SpanHelpers.IndexOf(ref MemoryMarshal.GetReference(span), span.Length, ref MemoryMarshal.GetReference(value), value.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int LastIndexOf<T>(this Span<T> span, T value) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.LastIndexOf(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value), span.Length);
			}
			if (typeof(T) == typeof(char))
			{
				return System.SpanHelpers.LastIndexOf(ref Unsafe.As<T, char>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, char>(ref value), span.Length);
			}
			return System.SpanHelpers.LastIndexOf(ref MemoryMarshal.GetReference(span), value, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int LastIndexOf<T>(this Span<T> span, ReadOnlySpan<T> value) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.LastIndexOf(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(value)), value.Length);
			}
			return System.SpanHelpers.LastIndexOf(ref MemoryMarshal.GetReference(span), span.Length, ref MemoryMarshal.GetReference(value), value.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static bool SequenceEqual<T>(this Span<T> span, ReadOnlySpan<T> other) where T : IEquatable<T>
		{
			int length = span.Length;
			if (default(T) != null && IsTypeComparableAsBytes<T>(out var size))
			{
				if (length == other.Length)
				{
					return System.SpanHelpers.SequenceEqual(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(other)), (nuint)length * size);
				}
				return false;
			}
			if (length == other.Length)
			{
				return System.SpanHelpers.SequenceEqual(ref MemoryMarshal.GetReference(span), ref MemoryMarshal.GetReference(other), length);
			}
			return false;
		}

		public static int SequenceCompareTo<T>(this Span<T> span, ReadOnlySpan<T> other) where T : IComparable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.SequenceCompareTo(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(other)), other.Length);
			}
			if (typeof(T) == typeof(char))
			{
				return System.SpanHelpers.SequenceCompareTo(ref Unsafe.As<T, char>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, char>(ref MemoryMarshal.GetReference(other)), other.Length);
			}
			return System.SpanHelpers.SequenceCompareTo(ref MemoryMarshal.GetReference(span), span.Length, ref MemoryMarshal.GetReference(other), other.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int IndexOf<T>(this ReadOnlySpan<T> span, T value) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.IndexOf(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value), span.Length);
			}
			if (typeof(T) == typeof(char))
			{
				return System.SpanHelpers.IndexOf(ref Unsafe.As<T, char>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, char>(ref value), span.Length);
			}
			return System.SpanHelpers.IndexOf(ref MemoryMarshal.GetReference(span), value, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int IndexOf<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> value) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.IndexOf(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(value)), value.Length);
			}
			return System.SpanHelpers.IndexOf(ref MemoryMarshal.GetReference(span), span.Length, ref MemoryMarshal.GetReference(value), value.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int LastIndexOf<T>(this ReadOnlySpan<T> span, T value) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.LastIndexOf(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value), span.Length);
			}
			if (typeof(T) == typeof(char))
			{
				return System.SpanHelpers.LastIndexOf(ref Unsafe.As<T, char>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, char>(ref value), span.Length);
			}
			return System.SpanHelpers.LastIndexOf(ref MemoryMarshal.GetReference(span), value, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int LastIndexOf<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> value) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.LastIndexOf(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(value)), value.Length);
			}
			return System.SpanHelpers.LastIndexOf(ref MemoryMarshal.GetReference(span), span.Length, ref MemoryMarshal.GetReference(value), value.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int IndexOfAny<T>(this Span<T> span, T value0, T value1) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.IndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value0), Unsafe.As<T, byte>(ref value1), span.Length);
			}
			return System.SpanHelpers.IndexOfAny(ref MemoryMarshal.GetReference(span), value0, value1, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int IndexOfAny<T>(this Span<T> span, T value0, T value1, T value2) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.IndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value0), Unsafe.As<T, byte>(ref value1), Unsafe.As<T, byte>(ref value2), span.Length);
			}
			return System.SpanHelpers.IndexOfAny(ref MemoryMarshal.GetReference(span), value0, value1, value2, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int IndexOfAny<T>(this Span<T> span, ReadOnlySpan<T> values) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.IndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(values)), values.Length);
			}
			return System.SpanHelpers.IndexOfAny(ref MemoryMarshal.GetReference(span), span.Length, ref MemoryMarshal.GetReference(values), values.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int IndexOfAny<T>(this ReadOnlySpan<T> span, T value0, T value1) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.IndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value0), Unsafe.As<T, byte>(ref value1), span.Length);
			}
			return System.SpanHelpers.IndexOfAny(ref MemoryMarshal.GetReference(span), value0, value1, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int IndexOfAny<T>(this ReadOnlySpan<T> span, T value0, T value1, T value2) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.IndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value0), Unsafe.As<T, byte>(ref value1), Unsafe.As<T, byte>(ref value2), span.Length);
			}
			return System.SpanHelpers.IndexOfAny(ref MemoryMarshal.GetReference(span), value0, value1, value2, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int IndexOfAny<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> values) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.IndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(values)), values.Length);
			}
			return System.SpanHelpers.IndexOfAny(ref MemoryMarshal.GetReference(span), span.Length, ref MemoryMarshal.GetReference(values), values.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int LastIndexOfAny<T>(this Span<T> span, T value0, T value1) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.LastIndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value0), Unsafe.As<T, byte>(ref value1), span.Length);
			}
			return System.SpanHelpers.LastIndexOfAny(ref MemoryMarshal.GetReference(span), value0, value1, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int LastIndexOfAny<T>(this Span<T> span, T value0, T value1, T value2) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.LastIndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value0), Unsafe.As<T, byte>(ref value1), Unsafe.As<T, byte>(ref value2), span.Length);
			}
			return System.SpanHelpers.LastIndexOfAny(ref MemoryMarshal.GetReference(span), value0, value1, value2, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int LastIndexOfAny<T>(this Span<T> span, ReadOnlySpan<T> values) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.LastIndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(values)), values.Length);
			}
			return System.SpanHelpers.LastIndexOfAny(ref MemoryMarshal.GetReference(span), span.Length, ref MemoryMarshal.GetReference(values), values.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int LastIndexOfAny<T>(this ReadOnlySpan<T> span, T value0, T value1) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.LastIndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value0), Unsafe.As<T, byte>(ref value1), span.Length);
			}
			return System.SpanHelpers.LastIndexOfAny(ref MemoryMarshal.GetReference(span), value0, value1, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int LastIndexOfAny<T>(this ReadOnlySpan<T> span, T value0, T value1, T value2) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.LastIndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), Unsafe.As<T, byte>(ref value0), Unsafe.As<T, byte>(ref value1), Unsafe.As<T, byte>(ref value2), span.Length);
			}
			return System.SpanHelpers.LastIndexOfAny(ref MemoryMarshal.GetReference(span), value0, value1, value2, span.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int LastIndexOfAny<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> values) where T : IEquatable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.LastIndexOfAny(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(values)), values.Length);
			}
			return System.SpanHelpers.LastIndexOfAny(ref MemoryMarshal.GetReference(span), span.Length, ref MemoryMarshal.GetReference(values), values.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static bool SequenceEqual<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> other) where T : IEquatable<T>
		{
			int length = span.Length;
			if (default(T) != null && IsTypeComparableAsBytes<T>(out var size))
			{
				if (length == other.Length)
				{
					return System.SpanHelpers.SequenceEqual(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(other)), (nuint)length * size);
				}
				return false;
			}
			if (length == other.Length)
			{
				return System.SpanHelpers.SequenceEqual(ref MemoryMarshal.GetReference(span), ref MemoryMarshal.GetReference(other), length);
			}
			return false;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int SequenceCompareTo<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> other) where T : IComparable<T>
		{
			if (typeof(T) == typeof(byte))
			{
				return System.SpanHelpers.SequenceCompareTo(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(other)), other.Length);
			}
			if (typeof(T) == typeof(char))
			{
				return System.SpanHelpers.SequenceCompareTo(ref Unsafe.As<T, char>(ref MemoryMarshal.GetReference(span)), span.Length, ref Unsafe.As<T, char>(ref MemoryMarshal.GetReference(other)), other.Length);
			}
			return System.SpanHelpers.SequenceCompareTo(ref MemoryMarshal.GetReference(span), span.Length, ref MemoryMarshal.GetReference(other), other.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static bool StartsWith<T>(this Span<T> span, ReadOnlySpan<T> value) where T : IEquatable<T>
		{
			int length = value.Length;
			if (default(T) != null && IsTypeComparableAsBytes<T>(out var size))
			{
				if (length <= span.Length)
				{
					return System.SpanHelpers.SequenceEqual(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(value)), (nuint)length * size);
				}
				return false;
			}
			if (length <= span.Length)
			{
				return System.SpanHelpers.SequenceEqual(ref MemoryMarshal.GetReference(span), ref MemoryMarshal.GetReference(value), length);
			}
			return false;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static bool StartsWith<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> value) where T : IEquatable<T>
		{
			int length = value.Length;
			if (default(T) != null && IsTypeComparableAsBytes<T>(out var size))
			{
				if (length <= span.Length)
				{
					return System.SpanHelpers.SequenceEqual(ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(span)), ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(value)), (nuint)length * size);
				}
				return false;
			}
			if (length <= span.Length)
			{
				return System.SpanHelpers.SequenceEqual(ref MemoryMarshal.GetReference(span), ref MemoryMarshal.GetReference(value), length);
			}
			return false;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static bool EndsWith<T>(this Span<T> span, ReadOnlySpan<T> value) where T : IEquatable<T>
		{
			int length = span.Length;
			int length2 = value.Length;
			if (default(T) != null && IsTypeComparableAsBytes<T>(out var size))
			{
				if (length2 <= length)
				{
					return System.SpanHelpers.SequenceEqual(ref Unsafe.As<T, byte>(ref Unsafe.Add(ref MemoryMarshal.GetReference(span), length - length2)), ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(value)), (nuint)length2 * size);
				}
				return false;
			}
			if (length2 <= length)
			{
				return System.SpanHelpers.SequenceEqual(ref Unsafe.Add(ref MemoryMarshal.GetReference(span), length - length2), ref MemoryMarshal.GetReference(value), length2);
			}
			return false;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static bool EndsWith<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> value) where T : IEquatable<T>
		{
			int length = span.Length;
			int length2 = value.Length;
			if (default(T) != null && IsTypeComparableAsBytes<T>(out var size))
			{
				if (length2 <= length)
				{
					return System.SpanHelpers.SequenceEqual(ref Unsafe.As<T, byte>(ref Unsafe.Add(ref MemoryMarshal.GetReference(span), length - length2)), ref Unsafe.As<T, byte>(ref MemoryMarshal.GetReference(value)), (nuint)length2 * size);
				}
				return false;
			}
			if (length2 <= length)
			{
				return System.SpanHelpers.SequenceEqual(ref Unsafe.Add(ref MemoryMarshal.GetReference(span), length - length2), ref MemoryMarshal.GetReference(value), length2);
			}
			return false;
		}

		public static void Reverse<T>(this Span<T> span)
		{
			if (span.Length > 1)
			{
				ref T reference = ref MemoryMarshal.GetReference(span);
				ref T reference2 = ref Unsafe.Add(ref Unsafe.Add(ref reference, span.Length), -1);
				do
				{
					T val = reference;
					reference = reference2;
					reference2 = val;
					reference = ref Unsafe.Add(ref reference, 1);
					reference2 = ref Unsafe.Add(ref reference2, -1);
				}
				while (Unsafe.IsAddressLessThan(ref reference, ref reference2));
			}
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static Span<T> AsSpan<T>(this T[]? array)
		{
			return new Span<T>(array);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static Span<T> AsSpan<T>(this T[]? array, int start, int length)
		{
			return new Span<T>(array, start, length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static Span<T> AsSpan<T>(this ArraySegment<T> segment)
		{
			return new Span<T>(segment.Array, segment.Offset, segment.Count);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static Span<T> AsSpan<T>(this ArraySegment<T> segment, int start)
		{
			if ((uint)start > segment.Count)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			return new Span<T>(segment.Array, segment.Offset + start, segment.Count - start);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static Span<T> AsSpan<T>(this ArraySegment<T> segment, int start, int length)
		{
			if ((uint)start > segment.Count)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			if ((uint)length > segment.Count - start)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.length);
			}
			return new Span<T>(segment.Array, segment.Offset + start, length);
		}

		public static Memory<T> AsMemory<T>(this T[]? array)
		{
			return new Memory<T>(array);
		}

		public static Memory<T> AsMemory<T>(this T[]? array, int start)
		{
			return new Memory<T>(array, start);
		}

		public static Memory<T> AsMemory<T>(this T[]? array, int start, int length)
		{
			return new Memory<T>(array, start, length);
		}

		public static Memory<T> AsMemory<T>(this ArraySegment<T> segment)
		{
			return new Memory<T>(segment.Array, segment.Offset, segment.Count);
		}

		public static Memory<T> AsMemory<T>(this ArraySegment<T> segment, int start)
		{
			if ((uint)start > segment.Count)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			return new Memory<T>(segment.Array, segment.Offset + start, segment.Count - start);
		}

		public static Memory<T> AsMemory<T>(this ArraySegment<T> segment, int start, int length)
		{
			if ((uint)start > segment.Count)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			if ((uint)length > segment.Count - start)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.length);
			}
			return new Memory<T>(segment.Array, segment.Offset + start, length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static void CopyTo<T>(this T[]? source, Span<T> destination)
		{
			new ReadOnlySpan<T>(source).CopyTo(destination);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static void CopyTo<T>(this T[]? source, Memory<T> destination)
		{
			source.CopyTo(destination.Span);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static bool Overlaps<T>(this Span<T> span, ReadOnlySpan<T> other)
		{
			return ((ReadOnlySpan<T>)span).Overlaps(other);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static bool Overlaps<T>(this Span<T> span, ReadOnlySpan<T> other, out int elementOffset)
		{
			return ((ReadOnlySpan<T>)span).Overlaps(other, out elementOffset);
		}

		public static bool Overlaps<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> other)
		{
			if (span.IsEmpty || other.IsEmpty)
			{
				return false;
			}
			nint num = Unsafe.ByteOffset(ref MemoryMarshal.GetReference(span), ref MemoryMarshal.GetReference(other));
			if (Unsafe.SizeOf<IntPtr>() == 4)
			{
				if ((uint)(int)(IntPtr)num >= (uint)(span.Length * Unsafe.SizeOf<T>()))
				{
					return (uint)(int)(IntPtr)num > (uint)(-(other.Length * Unsafe.SizeOf<T>()));
				}
				return true;
			}
			if ((ulong)(long)(IntPtr)num >= (ulong)((long)span.Length * (long)Unsafe.SizeOf<T>()))
			{
				return (ulong)(long)(IntPtr)num > (ulong)(-((long)other.Length * (long)Unsafe.SizeOf<T>()));
			}
			return true;
		}

		public static bool Overlaps<T>(this ReadOnlySpan<T> span, ReadOnlySpan<T> other, out int elementOffset)
		{
			if (span.IsEmpty || other.IsEmpty)
			{
				elementOffset = 0;
				return false;
			}
			nint num = Unsafe.ByteOffset(ref MemoryMarshal.GetReference(span), ref MemoryMarshal.GetReference(other));
			if (Unsafe.SizeOf<IntPtr>() == 4)
			{
				if ((uint)(int)(IntPtr)num < (uint)(span.Length * Unsafe.SizeOf<T>()) || (uint)(int)(IntPtr)num > (uint)(-(other.Length * Unsafe.SizeOf<T>())))
				{
					if ((int)(IntPtr)num % Unsafe.SizeOf<T>() != 0)
					{
						System.ThrowHelper.ThrowArgumentException_OverlapAlignmentMismatch();
					}
					elementOffset = (int)(IntPtr)num / Unsafe.SizeOf<T>();
					return true;
				}
				elementOffset = 0;
				return false;
			}
			if ((ulong)(long)(IntPtr)num < (ulong)((long)span.Length * (long)Unsafe.SizeOf<T>()) || (ulong)(long)(IntPtr)num > (ulong)(-((long)other.Length * (long)Unsafe.SizeOf<T>())))
			{
				if ((long)(IntPtr)num % Unsafe.SizeOf<T>() != 0L)
				{
					System.ThrowHelper.ThrowArgumentException_OverlapAlignmentMismatch();
				}
				elementOffset = (int)((long)(IntPtr)num / Unsafe.SizeOf<T>());
				return true;
			}
			elementOffset = 0;
			return false;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int BinarySearch<T>(this Span<T> span, IComparable<T> comparable)
		{
			return span.BinarySearch<T, IComparable<T>>(comparable);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int BinarySearch<T, TComparable>(this Span<T> span, TComparable comparable) where TComparable : IComparable<T>
		{
			return BinarySearch((ReadOnlySpan<T>)span, comparable);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int BinarySearch<T, TComparer>(this Span<T> span, T value, TComparer comparer) where TComparer : IComparer<T>
		{
			return ((ReadOnlySpan<T>)span).BinarySearch(value, comparer);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int BinarySearch<T>(this ReadOnlySpan<T> span, IComparable<T> comparable)
		{
			return MemoryExtensions.BinarySearch<T, IComparable<T>>(span, comparable);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int BinarySearch<T, TComparable>(this ReadOnlySpan<T> span, TComparable comparable) where TComparable : IComparable<T>
		{
			return System.SpanHelpers.BinarySearch(span, comparable);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int BinarySearch<T, TComparer>(this ReadOnlySpan<T> span, T value, TComparer comparer) where TComparer : IComparer<T>
		{
			if (comparer == null)
			{
				System.ThrowHelper.ThrowArgumentNullException(System.ExceptionArgument.comparer);
			}
			System.SpanHelpers.ComparerComparable<T, TComparer> comparable = new System.SpanHelpers.ComparerComparable<T, TComparer>(value, comparer);
			return BinarySearch(span, comparable);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		private static bool IsTypeComparableAsBytes<T>(out nuint size)
		{
			if (typeof(T) == typeof(byte) || typeof(T) == typeof(sbyte))
			{
				size = 1u;
				return true;
			}
			if (typeof(T) == typeof(char) || typeof(T) == typeof(short) || typeof(T) == typeof(ushort))
			{
				size = 2u;
				return true;
			}
			if (typeof(T) == typeof(int) || typeof(T) == typeof(uint))
			{
				size = 4u;
				return true;
			}
			if (typeof(T) == typeof(long) || typeof(T) == typeof(ulong))
			{
				size = 8u;
				return true;
			}
			size = 0u;
			return false;
		}

		public static Span<T> AsSpan<T>(this T[]? array, int start)
		{
			return Span<T>.Create(array, start);
		}

		public static bool Contains(this ReadOnlySpan<char> span, ReadOnlySpan<char> value, StringComparison comparisonType)
		{
			return span.IndexOf(value, comparisonType) >= 0;
		}

		public static bool Equals(this ReadOnlySpan<char> span, ReadOnlySpan<char> other, StringComparison comparisonType)
		{
			switch (comparisonType)
			{
			case StringComparison.Ordinal:
				return span.SequenceEqual(other);
			case StringComparison.OrdinalIgnoreCase:
				if (span.Length != other.Length)
				{
					return false;
				}
				return EqualsOrdinalIgnoreCase(span, other);
			default:
				return span.ToString().Equals(other.ToString(), comparisonType);
			}
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		private static bool EqualsOrdinalIgnoreCase(ReadOnlySpan<char> span, ReadOnlySpan<char> other)
		{
			if (other.Length == 0)
			{
				return true;
			}
			return CompareToOrdinalIgnoreCase(span, other) == 0;
		}

		public static int CompareTo(this ReadOnlySpan<char> span, ReadOnlySpan<char> other, StringComparison comparisonType)
		{
			return comparisonType switch
			{
				StringComparison.Ordinal => span.SequenceCompareTo(other), 
				StringComparison.OrdinalIgnoreCase => CompareToOrdinalIgnoreCase(span, other), 
				_ => string.Compare(span.ToString(), other.ToString(), comparisonType), 
			};
		}

		private unsafe static int CompareToOrdinalIgnoreCase(ReadOnlySpan<char> strA, ReadOnlySpan<char> strB)
		{
			int num = Math.Min(strA.Length, strB.Length);
			int num2 = num;
			fixed (char* ptr = &MemoryMarshal.GetReference(strA))
			{
				fixed (char* ptr3 = &MemoryMarshal.GetReference(strB))
				{
					char* ptr2 = ptr;
					char* ptr4 = ptr3;
					while (num != 0 && *ptr2 <= '\u007f' && *ptr4 <= '\u007f')
					{
						int num3 = *ptr2;
						int num4 = *ptr4;
						if (num3 == num4)
						{
							ptr2++;
							ptr4++;
							num--;
							continue;
						}
						if ((uint)(num3 - 97) <= 25u)
						{
							num3 -= 32;
						}
						if ((uint)(num4 - 97) <= 25u)
						{
							num4 -= 32;
						}
						if (num3 != num4)
						{
							return num3 - num4;
						}
						ptr2++;
						ptr4++;
						num--;
					}
					if (num == 0)
					{
						return strA.Length - strB.Length;
					}
					num2 -= num;
					return string.Compare(strA.Slice(num2).ToString(), strB.Slice(num2).ToString(), StringComparison.OrdinalIgnoreCase);
				}
			}
		}

		public static int IndexOf(this ReadOnlySpan<char> span, ReadOnlySpan<char> value, StringComparison comparisonType)
		{
			if (comparisonType == StringComparison.Ordinal)
			{
				return span.IndexOf(value);
			}
			return span.ToString().IndexOf(value.ToString(), comparisonType);
		}

		public static int ToLower(this ReadOnlySpan<char> source, Span<char> destination, CultureInfo culture)
		{
			System.ThrowHelper.ThrowIfArgumentNull(culture, System.ExceptionArgument.culture);
			if (destination.Length < source.Length)
			{
				return -1;
			}
			string str = source.ToString();
			AsSpan(culture.TextInfo.ToLower(str)).CopyTo(destination);
			return source.Length;
		}

		public static int ToLowerInvariant(this ReadOnlySpan<char> source, Span<char> destination)
		{
			return source.ToLower(destination, CultureInfo.InvariantCulture);
		}

		public static int ToUpper(this ReadOnlySpan<char> source, Span<char> destination, CultureInfo culture)
		{
			System.ThrowHelper.ThrowIfArgumentNull(culture, System.ExceptionArgument.culture);
			if (destination.Length < source.Length)
			{
				return -1;
			}
			string str = source.ToString();
			AsSpan(culture.TextInfo.ToUpper(str)).CopyTo(destination);
			return source.Length;
		}

		public static int ToUpperInvariant(this ReadOnlySpan<char> source, Span<char> destination)
		{
			return source.ToUpper(destination, CultureInfo.InvariantCulture);
		}

		public static bool EndsWith(this ReadOnlySpan<char> span, ReadOnlySpan<char> value, StringComparison comparisonType)
		{
			switch (comparisonType)
			{
			case StringComparison.Ordinal:
				return span.EndsWith(value);
			case StringComparison.OrdinalIgnoreCase:
				if (value.Length <= span.Length)
				{
					return EqualsOrdinalIgnoreCase(span.Slice(span.Length - value.Length), value);
				}
				return false;
			default:
			{
				string text = span.ToString();
				string value2 = value.ToString();
				return text.EndsWith(value2, comparisonType);
			}
			}
		}

		public static bool StartsWith(this ReadOnlySpan<char> span, ReadOnlySpan<char> value, StringComparison comparisonType)
		{
			switch (comparisonType)
			{
			case StringComparison.Ordinal:
				return span.StartsWith(value);
			case StringComparison.OrdinalIgnoreCase:
				if (value.Length <= span.Length)
				{
					return EqualsOrdinalIgnoreCase(span.Slice(0, value.Length), value);
				}
				return false;
			default:
			{
				string text = span.ToString();
				string value2 = value.ToString();
				return text.StartsWith(value2, comparisonType);
			}
			}
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static ReadOnlySpan<char> AsSpan(this string? text)
		{
			if (text == null)
			{
				return default(ReadOnlySpan<char>);
			}
			return new ReadOnlySpan<char>(text, (IntPtr)RuntimeHelpers.OffsetToStringData, text.Length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static ReadOnlySpan<char> AsSpan(this string? text, int start)
		{
			if (text == null)
			{
				if (start != 0)
				{
					System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
				}
				return default(ReadOnlySpan<char>);
			}
			if ((uint)start > (uint)text.Length)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			return new ReadOnlySpan<char>(text, (nint)RuntimeHelpers.OffsetToStringData + (nint)(start * 2), text.Length - start);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static ReadOnlySpan<char> AsSpan(this string? text, int start, int length)
		{
			if (text == null)
			{
				if (start != 0 || length != 0)
				{
					System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
				}
				return default(ReadOnlySpan<char>);
			}
			if ((uint)start > (uint)text.Length || (uint)length > (uint)(text.Length - start))
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			return new ReadOnlySpan<char>(text, (nint)RuntimeHelpers.OffsetToStringData + (nint)(start * 2), length);
		}

		public static ReadOnlyMemory<char> AsMemory(this string? text)
		{
			if (text == null)
			{
				return default(ReadOnlyMemory<char>);
			}
			return new ReadOnlyMemory<char>(text, 0, text.Length);
		}

		public static ReadOnlyMemory<char> AsMemory(this string? text, int start)
		{
			if (text == null)
			{
				if (start != 0)
				{
					System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
				}
				return default(ReadOnlyMemory<char>);
			}
			if ((uint)start > (uint)text.Length)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			return new ReadOnlyMemory<char>(text, start, text.Length - start);
		}

		public static ReadOnlyMemory<char> AsMemory(this string? text, int start, int length)
		{
			if (text == null)
			{
				if (start != 0 || length != 0)
				{
					System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
				}
				return default(ReadOnlyMemory<char>);
			}
			if ((uint)start > (uint)text.Length || (uint)length > (uint)(text.Length - start))
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			return new ReadOnlyMemory<char>(text, start, length);
		}
	}
	[DebuggerTypeProxy(typeof(System.MemoryDebugView<>))]
	[DebuggerDisplay("{ToString(),raw}")]
	public readonly struct ReadOnlyMemory<T>
	{
		private readonly object? _object;

		private readonly int _index;

		private readonly int _length;

		internal const int RemoveFlagsBitMask = int.MaxValue;

		public static ReadOnlyMemory<T> Empty => default(ReadOnlyMemory<T>);

		public int Length => _length & 0x7FFFFFFF;

		public bool IsEmpty => (_length & 0x7FFFFFFF) == 0;

		public ReadOnlySpan<T> Span
		{
			[MethodImpl(MethodImplOptions.AggressiveInlining)]
			get
			{
				if (_index < 0)
				{
					return ((MemoryManager<T>)_object).GetSpan().Slice(_index & 0x7FFFFFFF, _length);
				}
				ReadOnlySpan<T> result;
				if (typeof(T) == typeof(char) && _object is string text)
				{
					result = new ReadOnlySpan<T>(text, (IntPtr)RuntimeHelpers.OffsetToStringData, text.Length);
					return result.Slice(_index, _length);
				}
				if (_object != null)
				{
					return new ReadOnlySpan<T>((T[])_object, _index, _length & 0x7FFFFFFF);
				}
				result = default(ReadOnlySpan<T>);
				return result;
			}
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public ReadOnlyMemory(T[]? array)
		{
			if (array == null)
			{
				this = default(ReadOnlyMemory<T>);
				return;
			}
			_object = array;
			_index = 0;
			_length = array.Length;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public ReadOnlyMemory(T[]? array, int start, int length)
		{
			if (array == null)
			{
				if (start != 0 || length != 0)
				{
					System.ThrowHelper.ThrowArgumentOutOfRangeException();
				}
				this = default(ReadOnlyMemory<T>);
				return;
			}
			if ((uint)start > (uint)array.Length || (uint)length > (uint)(array.Length - start))
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException();
			}
			_object = array;
			_index = start;
			_length = length;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		internal ReadOnlyMemory(object? obj, int start, int length)
		{
			_object = obj;
			_index = start;
			_length = length;
		}

		public static implicit operator ReadOnlyMemory<T>(T[]? array)
		{
			return new ReadOnlyMemory<T>(array);
		}

		public static implicit operator ReadOnlyMemory<T>(ArraySegment<T> segment)
		{
			return new ReadOnlyMemory<T>(segment.Array, segment.Offset, segment.Count);
		}

		public override string ToString()
		{
			if (typeof(T) == typeof(char))
			{
				if (!(_object is string text))
				{
					return Span.ToString();
				}
				return text.Substring(_index, _length & 0x7FFFFFFF);
			}
			return $"System.ReadOnlyMemory<{typeof(T).Name}>[{_length & 0x7FFFFFFF}]";
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public ReadOnlyMemory<T> Slice(int start)
		{
			int length = _length;
			int num = length & 0x7FFFFFFF;
			if ((uint)start > (uint)num)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			return new ReadOnlyMemory<T>(_object, _index + start, length - start);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public ReadOnlyMemory<T> Slice(int start, int length)
		{
			int length2 = _length;
			int num = _length & 0x7FFFFFFF;
			if ((uint)start > (uint)num || (uint)length > (uint)(num - start))
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			return new ReadOnlyMemory<T>(_object, _index + start, length | (length2 & int.MinValue));
		}

		public void CopyTo(Memory<T> destination)
		{
			Span.CopyTo(destination.Span);
		}

		public bool TryCopyTo(Memory<T> destination)
		{
			return Span.TryCopyTo(destination.Span);
		}

		public unsafe MemoryHandle Pin()
		{
			if (_index < 0)
			{
				return ((MemoryManager<T>)_object).Pin(_index & 0x7FFFFFFF);
			}
			if (typeof(T) == typeof(char) && _object is string value)
			{
				GCHandle handle = GCHandle.Alloc(value, GCHandleType.Pinned);
				return new MemoryHandle(Unsafe.Add<T>((void*)handle.AddrOfPinnedObject(), _index), handle);
			}
			if (_object is T[] array)
			{
				if (_length < 0)
				{
					return new MemoryHandle(Unsafe.Add<T>(Unsafe.AsPointer(ref MemoryMarshal.GetReference<T>(array)), _index));
				}
				GCHandle handle2 = GCHandle.Alloc(array, GCHandleType.Pinned);
				return new MemoryHandle(Unsafe.Add<T>((void*)handle2.AddrOfPinnedObject(), _index), handle2);
			}
			return default(MemoryHandle);
		}

		public T[] ToArray()
		{
			return Span.ToArray();
		}

		[EditorBrowsable(EditorBrowsableState.Never)]
		public override bool Equals(object? obj)
		{
			if (obj is ReadOnlyMemory<T> other)
			{
				return Equals(other);
			}
			if (obj is Memory<T> memory)
			{
				return Equals(memory);
			}
			return false;
		}

		public bool Equals(ReadOnlyMemory<T> other)
		{
			if (_object == other._object && _index == other._index)
			{
				return _length == other._length;
			}
			return false;
		}

		[EditorBrowsable(EditorBrowsableState.Never)]
		public override int GetHashCode()
		{
			if (_object == null)
			{
				return 0;
			}
			return HashCode.Combine(_object, _index, _length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		internal object? GetObjectStartLength(out int start, out int length)
		{
			start = _index;
			length = _length;
			return _object;
		}
	}
	[DebuggerTypeProxy(typeof(System.SpanDebugView<>))]
	[DebuggerDisplay("{ToString(),raw}")]
	public readonly ref struct ReadOnlySpan<T>
	{
		public ref struct Enumerator
		{
			private readonly ReadOnlySpan<T> _span;

			private int _index;

			public ref readonly T Current
			{
				[MethodImpl(MethodImplOptions.AggressiveInlining)]
				get
				{
					return ref _span[_index];
				}
			}

			[MethodImpl(MethodImplOptions.AggressiveInlining)]
			internal Enumerator(ReadOnlySpan<T> span)
			{
				_span = span;
				_index = -1;
			}

			[MethodImpl(MethodImplOptions.AggressiveInlining)]
			public bool MoveNext()
			{
				int num = _index + 1;
				if (num < _span.Length)
				{
					_index = num;
					return true;
				}
				return false;
			}
		}

		private readonly object? _pinnable;

		private readonly IntPtr _byteOffset;

		private readonly int _length;

		public int Length => _length;

		public bool IsEmpty => _length == 0;

		public static ReadOnlySpan<T> Empty => default(ReadOnlySpan<T>);

		public ref readonly T this[int index]
		{
			[MethodImpl(MethodImplOptions.AggressiveInlining)]
			get
			{
				if ((uint)index >= (uint)_length)
				{
					System.ThrowHelper.ThrowIndexOutOfRangeException();
				}
				return ref Unsafe.Add(ref DangerousGetPinnableReference(), index);
			}
		}

		internal object? Pinnable => _pinnable;

		internal IntPtr ByteOffset => _byteOffset;

		public static bool operator !=(ReadOnlySpan<T> left, ReadOnlySpan<T> right)
		{
			return !(left == right);
		}

		[Obsolete("Equals() on ReadOnlySpan will always throw an exception. Use == instead.")]
		[EditorBrowsable(EditorBrowsableState.Never)]
		public override bool Equals(object? obj)
		{
			throw new NotSupportedException("Cannot call Equals on Span");
		}

		[Obsolete("GetHashCode() on ReadOnlySpan will always throw an exception.")]
		[EditorBrowsable(EditorBrowsableState.Never)]
		public override int GetHashCode()
		{
			throw new NotSupportedException("Cannot call GetHashCodee on Span");
		}

		public static implicit operator ReadOnlySpan<T>(T[]? array)
		{
			return new ReadOnlySpan<T>(array);
		}

		public static implicit operator ReadOnlySpan<T>(ArraySegment<T> segment)
		{
			return new ReadOnlySpan<T>(segment.Array ?? throw new ArgumentNullException("segment"), segment.Offset, segment.Count);
		}

		public Enumerator GetEnumerator()
		{
			return new Enumerator(this);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public ReadOnlySpan(T[]? array)
		{
			if (array == null)
			{
				this = default(ReadOnlySpan<T>);
				return;
			}
			_length = array.Length;
			_pinnable = array;
			_byteOffset = System.SpanHelpers.PerTypeValues<T>.ArrayAdjustment;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public ReadOnlySpan(T[]? array, int start, int length)
		{
			if (array == null)
			{
				if (start != 0 || length != 0)
				{
					System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
				}
				this = default(ReadOnlySpan<T>);
				return;
			}
			if ((uint)start > (uint)array.Length || (uint)length > (uint)(array.Length - start))
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			_length = length;
			_pinnable = array;
			_byteOffset = System.SpanHelpers.PerTypeValues<T>.ArrayAdjustment.Add<T>(start);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		[CLSCompliant(false)]
		public unsafe ReadOnlySpan(void* pointer, int length)
		{
			if (System.SpanHelpers.IsReferenceOrContainsReferences<T>())
			{
				System.ThrowHelper.ThrowArgumentException_InvalidTypeWithPointersNotSupported(typeof(T));
			}
			if (length < 0)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			_length = length;
			_pinnable = null;
			_byteOffset = new IntPtr(pointer);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		internal ReadOnlySpan(object? pinnable, IntPtr byteOffset, int length)
		{
			_length = length;
			_pinnable = pinnable;
			_byteOffset = byteOffset;
		}

		[EditorBrowsable(EditorBrowsableState.Never)]
		public unsafe ref readonly T GetPinnableReference()
		{
			if (_length != 0)
			{
				return ref DangerousGetPinnableReference();
			}
			return ref Unsafe.AsRef<T>(null);
		}

		public void CopyTo(Span<T> destination)
		{
			if (!TryCopyTo(destination))
			{
				System.ThrowHelper.ThrowArgumentException_DestinationTooShort();
			}
		}

		public bool TryCopyTo(Span<T> destination)
		{
			int length = _length;
			int length2 = destination.Length;
			if (length == 0)
			{
				return true;
			}
			if ((uint)length > (uint)length2)
			{
				return false;
			}
			ref T src = ref DangerousGetPinnableReference();
			System.SpanHelpers.CopyTo(ref destination.DangerousGetPinnableReference(), length2, ref src, length);
			return true;
		}

		public static bool operator ==(ReadOnlySpan<T> left, ReadOnlySpan<T> right)
		{
			if (left._length == right._length)
			{
				return Unsafe.AreSame(ref left.DangerousGetPinnableReference(), ref right.DangerousGetPinnableReference());
			}
			return false;
		}

		public unsafe override string ToString()
		{
			if (typeof(T) == typeof(char))
			{
				if (_byteOffset == (IntPtr)RuntimeHelpers.OffsetToStringData && Unsafe.As<object>(_pinnable) is string text && _length == text.Length)
				{
					return text;
				}
				fixed (char* value = &Unsafe.As<T, char>(ref DangerousGetPinnableReference()))
				{
					return new string(value, 0, _length);
				}
			}
			return $"System.ReadOnlySpan<{typeof(T).Name}>[{_length}]";
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public ReadOnlySpan<T> Slice(int start)
		{
			if ((uint)start > (uint)_length)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			IntPtr byteOffset = _byteOffset.Add<T>(start);
			int length = _length - start;
			return new ReadOnlySpan<T>(_pinnable, byteOffset, length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public ReadOnlySpan<T> Slice(int start, int length)
		{
			if ((uint)start > (uint)_length || (uint)length > (uint)(_length - start))
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			IntPtr byteOffset = _byteOffset.Add<T>(start);
			return new ReadOnlySpan<T>(_pinnable, byteOffset, length);
		}

		public T[] ToArray()
		{
			if (_length == 0)
			{
				return System.SpanHelpers.PerTypeValues<T>.EmptyArray;
			}
			T[] array = new T[_length];
			CopyTo(array);
			return array;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		internal ref T DangerousGetPinnableReference()
		{
			return ref Unsafe.AddByteOffset(ref ILHelpers.ObjectAsRef<T>(_pinnable), _byteOffset);
		}
	}
	[DebuggerTypeProxy(typeof(System.SpanDebugView<>))]
	[DebuggerDisplay("{ToString(),raw}")]
	public readonly ref struct Span<T>
	{
		public ref struct Enumerator
		{
			private readonly Span<T> _span;

			private int _index;

			public ref T Current
			{
				[MethodImpl(MethodImplOptions.AggressiveInlining)]
				get
				{
					return ref _span[_index];
				}
			}

			[MethodImpl(MethodImplOptions.AggressiveInlining)]
			internal Enumerator(Span<T> span)
			{
				_span = span;
				_index = -1;
			}

			[MethodImpl(MethodImplOptions.AggressiveInlining)]
			public bool MoveNext()
			{
				int num = _index + 1;
				if (num < _span.Length)
				{
					_index = num;
					return true;
				}
				return false;
			}
		}

		private readonly object? _pinnable;

		private readonly IntPtr _byteOffset;

		private readonly int _length;

		public int Length => _length;

		public bool IsEmpty => _length == 0;

		public static Span<T> Empty => default(Span<T>);

		public ref T this[int index]
		{
			[MethodImpl(MethodImplOptions.AggressiveInlining)]
			get
			{
				if ((uint)index >= (uint)_length)
				{
					System.ThrowHelper.ThrowIndexOutOfRangeException();
				}
				return ref Unsafe.Add(ref DangerousGetPinnableReference(), index);
			}
		}

		internal object? Pinnable => _pinnable;

		internal IntPtr ByteOffset => _byteOffset;

		public static bool operator !=(Span<T> left, Span<T> right)
		{
			return !(left == right);
		}

		[Obsolete("Equals() on Span will always throw an exception. Use == instead.")]
		[EditorBrowsable(EditorBrowsableState.Never)]
		public override bool Equals(object? obj)
		{
			throw new NotSupportedException("Cannot call Equals on Span");
		}

		[Obsolete("GetHashCode() on Span will always throw an exception.")]
		[EditorBrowsable(EditorBrowsableState.Never)]
		public override int GetHashCode()
		{
			throw new NotSupportedException("Cannot call GetHashCode on Span");
		}

		public static implicit operator Span<T>(T[]? array)
		{
			return new Span<T>(array);
		}

		public static implicit operator Span<T>(ArraySegment<T> segment)
		{
			return new Span<T>(segment.Array, segment.Offset, segment.Count);
		}

		public Enumerator GetEnumerator()
		{
			return new Enumerator(this);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public Span(T[]? array)
		{
			if (array == null)
			{
				this = default(Span<T>);
				return;
			}
			if (default(T) == null && array.GetType() != typeof(T[]))
			{
				System.ThrowHelper.ThrowArrayTypeMismatchException();
			}
			_length = array.Length;
			_pinnable = array;
			_byteOffset = System.SpanHelpers.PerTypeValues<T>.ArrayAdjustment;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		internal static Span<T> Create(T[]? array, int start)
		{
			if (array == null)
			{
				if (start != 0)
				{
					System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
				}
				return default(Span<T>);
			}
			if (default(T) == null && array.GetType() != typeof(T[]))
			{
				System.ThrowHelper.ThrowArrayTypeMismatchException();
			}
			if ((uint)start > (uint)array.Length)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			IntPtr byteOffset = System.SpanHelpers.PerTypeValues<T>.ArrayAdjustment.Add<T>(start);
			int length = array.Length - start;
			return new Span<T>(array, byteOffset, length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public Span(T[]? array, int start, int length)
		{
			if (array == null)
			{
				if (start != 0 || length != 0)
				{
					System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
				}
				this = default(Span<T>);
				return;
			}
			if (default(T) == null && array.GetType() != typeof(T[]))
			{
				System.ThrowHelper.ThrowArrayTypeMismatchException();
			}
			if ((uint)start > (uint)array.Length || (uint)length > (uint)(array.Length - start))
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			_length = length;
			_pinnable = array;
			_byteOffset = System.SpanHelpers.PerTypeValues<T>.ArrayAdjustment.Add<T>(start);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		[CLSCompliant(false)]
		public unsafe Span(void* pointer, int length)
		{
			if (System.SpanHelpers.IsReferenceOrContainsReferences<T>())
			{
				System.ThrowHelper.ThrowArgumentException_InvalidTypeWithPointersNotSupported(typeof(T));
			}
			if (length < 0)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			_length = length;
			_pinnable = null;
			_byteOffset = new IntPtr(pointer);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		internal Span(object? pinnable, IntPtr byteOffset, int length)
		{
			_length = length;
			_pinnable = pinnable;
			_byteOffset = byteOffset;
		}

		[EditorBrowsable(EditorBrowsableState.Never)]
		public ref T GetPinnableReference()
		{
			if (_length != 0)
			{
				return ref DangerousGetPinnableReference();
			}
			return ref Unsafe.NullRef<T>();
		}

		public unsafe void Clear()
		{
			int length = _length;
			if (length == 0)
			{
				return;
			}
			nuint byteLength = (UIntPtr)(ulong)((uint)length * Unsafe.SizeOf<T>());
			if ((Unsafe.SizeOf<T>() & (sizeof(IntPtr) - 1)) != 0)
			{
				if (_pinnable == null)
				{
					IntPtr byteOffset = _byteOffset;
					byte* ptr = (byte*)byteOffset.ToPointer();
					System.SpanHelpers.ClearLessThanPointerSized(ptr, byteLength);
				}
				else
				{
					System.SpanHelpers.ClearLessThanPointerSized(ref Unsafe.As<T, byte>(ref DangerousGetPinnableReference()), byteLength);
				}
			}
			else if (System.SpanHelpers.IsReferenceOrContainsReferences<T>())
			{
				nuint pointerSizeLength = (UIntPtr)(ulong)(length * Unsafe.SizeOf<T>() / sizeof(IntPtr));
				System.SpanHelpers.ClearPointerSizedWithReferences(ref Unsafe.As<T, IntPtr>(ref DangerousGetPinnableReference()), pointerSizeLength);
			}
			else
			{
				System.SpanHelpers.ClearPointerSizedWithoutReferences(ref Unsafe.As<T, byte>(ref DangerousGetPinnableReference()), byteLength);
			}
		}

		public void Fill(T value)
		{
			int length = _length;
			if (length == 0)
			{
				return;
			}
			if (Unsafe.SizeOf<T>() == 1)
			{
				byte value2 = Unsafe.As<T, byte>(ref value);
				Unsafe.InitBlockUnaligned(ref Unsafe.As<T, byte>(ref DangerousGetPinnableReference()), value2, (uint)length);
				return;
			}
			ref T source = ref DangerousGetPinnableReference();
			int i;
			for (i = 0; i < (length & -8); i += 8)
			{
				Unsafe.Add(ref source, i) = value;
				Unsafe.Add(ref source, i + 1) = value;
				Unsafe.Add(ref source, i + 2) = value;
				Unsafe.Add(ref source, i + 3) = value;
				Unsafe.Add(ref source, i + 4) = value;
				Unsafe.Add(ref source, i + 5) = value;
				Unsafe.Add(ref source, i + 6) = value;
				Unsafe.Add(ref source, i + 7) = value;
			}
			if (i < (length & -4))
			{
				Unsafe.Add(ref source, i) = value;
				Unsafe.Add(ref source, i + 1) = value;
				Unsafe.Add(ref source, i + 2) = value;
				Unsafe.Add(ref source, i + 3) = value;
				i += 4;
			}
			for (; i < length; i++)
			{
				Unsafe.Add(ref source, i) = value;
			}
		}

		public void CopyTo(Span<T> destination)
		{
			if (!TryCopyTo(destination))
			{
				System.ThrowHelper.ThrowArgumentException_DestinationTooShort();
			}
		}

		public bool TryCopyTo(Span<T> destination)
		{
			int length = _length;
			int length2 = destination._length;
			if (length == 0)
			{
				return true;
			}
			if ((uint)length > (uint)length2)
			{
				return false;
			}
			ref T src = ref DangerousGetPinnableReference();
			System.SpanHelpers.CopyTo(ref destination.DangerousGetPinnableReference(), length2, ref src, length);
			return true;
		}

		public static bool operator ==(Span<T> left, Span<T> right)
		{
			if (left._length == right._length)
			{
				return Unsafe.AreSame(ref left.DangerousGetPinnableReference(), ref right.DangerousGetPinnableReference());
			}
			return false;
		}

		public static implicit operator ReadOnlySpan<T>(Span<T> span)
		{
			return new ReadOnlySpan<T>(span._pinnable, span._byteOffset, span._length);
		}

		public unsafe override string ToString()
		{
			if (typeof(T) == typeof(char))
			{
				fixed (char* value = &Unsafe.As<T, char>(ref DangerousGetPinnableReference()))
				{
					return new string(value, 0, _length);
				}
			}
			return $"System.Span<{typeof(T).Name}>[{_length}]";
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public Span<T> Slice(int start)
		{
			if ((uint)start > (uint)_length)
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			IntPtr byteOffset = _byteOffset.Add<T>(start);
			int length = _length - start;
			return new Span<T>(_pinnable, byteOffset, length);
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public Span<T> Slice(int start, int length)
		{
			if ((uint)start > (uint)_length || (uint)length > (uint)(_length - start))
			{
				System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument.start);
			}
			IntPtr byteOffset = _byteOffset.Add<T>(start);
			return new Span<T>(_pinnable, byteOffset, length);
		}

		public T[] ToArray()
		{
			if (_length == 0)
			{
				return System.SpanHelpers.PerTypeValues<T>.EmptyArray;
			}
			T[] array = new T[_length];
			CopyTo(array);
			return array;
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		internal ref T DangerousGetPinnableReference()
		{
			return ref Unsafe.AddByteOffset(ref ILHelpers.ObjectAsRef<T>(_pinnable), _byteOffset);
		}
	}
	internal sealed class SpanDebugView<T>
	{
		private readonly T[] _array;

		[DebuggerBrowsable(DebuggerBrowsableState.RootHidden)]
		public T[] Items => _array;

		public SpanDebugView(Span<T> span)
		{
			_array = span.ToArray();
		}

		public SpanDebugView(ReadOnlySpan<T> span)
		{
			_array = span.ToArray();
		}
	}
	internal static class SpanHelpers
	{
		internal struct ComparerComparable<T, TComparer> : IComparable<T> where TComparer : IComparer<T>
		{
			private readonly T _value;

			private readonly TComparer _comparer;

			public ComparerComparable(T value, TComparer comparer)
			{
				_value = value;
				_comparer = comparer;
			}

			[MethodImpl(MethodImplOptions.AggressiveInlining)]
			public int CompareTo(T? other)
			{
				return _comparer.Compare(_value, other);
			}
		}

		[StructLayout(LayoutKind.Sequential, Size = 64)]
		private struct Reg64
		{
		}

		[StructLayout(LayoutKind.Sequential, Size = 32)]
		private struct Reg32
		{
		}

		[StructLayout(LayoutKind.Sequential, Size = 16)]
		private struct Reg16
		{
		}

		public static class PerTypeValues<T>
		{
			public static readonly bool IsReferenceOrContainsReferences = IsReferenceOrContainsReferencesCore(typeof(T));

			public static readonly T[] EmptyArray = ArrayEx.Empty<T>();

			public static readonly IntPtr ArrayAdjustment = MeasureArrayAdjustment();

			private static IntPtr MeasureArrayAdjustment()
			{
				T[] array = new T[1];
				return Unsafe.ByteOffset(ref ILHelpers.ObjectAsRef<T>((object)array), ref array[0]);
			}
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static int BinarySearch<T, TComparable>(this ReadOnlySpan<T> span, TComparable comparable) where TComparable : IComparable<T>
		{
			if (comparable == null)
			{
				System.ThrowHelper.ThrowArgumentNullException(System.ExceptionArgument.comparable);
			}
			return BinarySearch(ref MemoryMarshal.GetReference(span), span.Length, comparable);
		}

		public static int BinarySearch<T, TComparable>(ref T spanStart, int length, TComparable comparable) where TComparable : IComparable<T>
		{
			int num = 0;
			int num2 = length - 1;
			while (num <= num2)
			{
				int num3 = num2 + num >>> 1;
				ref TComparable reference = ref comparable;
				TComparable val = default(TComparable);
				if (val == null)
				{
					val = reference;
					reference = ref val;
				}
				int num4 = reference.CompareTo(Unsafe.Add(ref spanStart, num3));
				if (num4 == 0)
				{
					return num3;
				}
				if (num4 > 0)
				{
					num = num3 + 1;
				}
				else
				{
					num2 = num3 - 1;
				}
			}
			return ~num;
		}

		public static int IndexOf(ref byte searchSpace, int searchSpaceLength, ref byte value, int valueLength)
		{
			if (valueLength == 0)
			{
				return 0;
			}
			byte value2 = value;
			ref byte second = ref Unsafe.Add(ref value, 1);
			int num = valueLength - 1;
			int num2 = 0;
			while (true)
			{
				int num3 = searchSpaceLength - num2 - num;
				if (num3 <= 0)
				{
					break;
				}
				int num4 = IndexOf(ref Unsafe.Add(ref searchSpace, num2), value2, num3);
				if (num4 == -1)
				{
					break;
				}
				num2 += num4;
				if (SequenceEqual(ref Unsafe.Add(ref searchSpace, num2 + 1), ref second, num))
				{
					return num2;
				}
				num2++;
			}
			return -1;
		}

		public static int IndexOfAny(ref byte searchSpace, int searchSpaceLength, ref byte value, int valueLength)
		{
			if (valueLength == 0)
			{
				return 0;
			}
			int num = -1;
			for (int i = 0; i < valueLength; i++)
			{
				int num2 = IndexOf(ref searchSpace, Unsafe.Add(ref value, i), searchSpaceLength);
				if ((uint)num2 < (uint)num)
				{
					num = num2;
					searchSpaceLength = num2;
					if (num == 0)
					{
						break;
					}
				}
			}
			return num;
		}

		public static int LastIndexOfAny(ref byte searchSpace, int searchSpaceLength, ref byte value, int valueLength)
		{
			if (valueLength == 0)
			{
				return 0;
			}
			int num = -1;
			for (int i = 0; i < valueLength; i++)
			{
				int num2 = LastIndexOf(ref searchSpace, Unsafe.Add(ref value, i), searchSpaceLength);
				if (num2 > num)
				{
					num = num2;
				}
			}
			return num;
		}

		public static int IndexOf(ref byte searchSpace, byte value, int length)
		{
			nint num = 0;
			nint num2 = length;
			while (true)
			{
				if ((nuint)num2 >= (nuint)8u)
				{
					num2 -= 8;
					if (value != Unsafe.AddByteOffset(ref searchSpace, num))
					{
						if (value == Unsafe.AddByteOffset(ref searchSpace, num + 1))
						{
							goto IL_0109;
						}
						if (value == Unsafe.AddByteOffset(ref searchSpace, num + 2))
						{
							goto IL_010f;
						}
						if (value != Unsafe.AddByteOffset(ref searchSpace, num + 3))
						{
							if (value != Unsafe.AddByteOffset(ref searchSpace, num + 4))
							{
								if (value != Unsafe.AddByteOffset(ref searchSpace, num + 5))
								{
									if (value != Unsafe.AddByteOffset(ref searchSpace, num + 6))
									{
										if (value == Unsafe.AddByteOffset(ref searchSpace, num + 7))
										{
											break;
										}
										num += 8;
										continue;
									}
									return (int)(num + 6);
								}
								return (int)(num + 5);
							}
							return (int)(num + 4);
						}
						goto IL_0115;
					}
				}
				else
				{
					if ((nuint)num2 >= (nuint)4u)
					{
						num2 -= 4;
						if (value == Unsafe.AddByteOffset(ref searchSpace, num))
						{
							goto IL_0106;
						}
						if (value == Unsafe.AddByteOffset(ref searchSpace, num + 1))
						{
							goto IL_0109;
						}
						if (value == Unsafe.AddByteOffset(ref searchSpace, num + 2))
						{
							goto IL_010f;
						}
						if (value == Unsafe.AddByteOffset(ref searchSpace, num + 3))
						{
							goto IL_0115;
						}
						num += 4;
					}
					while (true)
					{
						if (num2 != 0)
						{
							num2--;
							if (value == Unsafe.AddByteOffset(ref searchSpace, num))
							{
								break;
							}
							num++;
							continue;
						}
						return -1;
					}
				}
				goto IL_0106;
				IL_010f:
				return (int)(num + 2);
				IL_0106:
				return (int)num;
				IL_0109:
				return (int)(num + 1);
				IL_0115:
				return (int)(num + 3);
			}
			return (int)(num + 7);
		}

		public static int LastIndexOf(ref byte searchSpace, int searchSpaceLength, ref byte value, int valueLength)
		{
			if (valueLength == 0)
			{
				return 0;
			}
			byte value2 = value;
			ref byte second = ref Unsafe.Add(ref value, 1);
			int num = valueLength - 1;
			int num2 = 0;
			while (true)
			{
				int num3 = searchSpaceLength - num2 - num;
				if (num3 <= 0)
				{
					break;
				}
				int num4 = LastIndexOf(ref searchSpace, value2, num3);
				if (num4 == -1)
				{
					break;
				}
				if (SequenceEqual(ref Unsafe.Add(ref searchSpace, num4 + 1), ref second, num))
				{
					return num4;
				}
				num2 += num3 - num4;
			}
			return -1;
		}

		public static int LastIndexOf(ref byte searchSpace, byte value, int length)
		{
			nint num = length;
			nint num2 = length;
			while (true)
			{
				if ((nuint)num2 >= (nuint)8u)
				{
					num2 -= 8;
					num -= 8;
					if (value == Unsafe.AddByteOffset(ref searchSpace, num + 7))
					{
						break;
					}
					if (value == Unsafe.AddByteOffset(ref searchSpace, num + 6))
					{
						return (int)(num + 6);
					}
					if (value == Unsafe.AddByteOffset(ref searchSpace, num + 5))
					{
						return (int)(num + 5);
					}
					if (value == Unsafe.AddByteOffset(ref searchSpace, num + 4))
					{
						return (int)(num + 4);
					}
					if (value == Unsafe.AddByteOffset(ref searchSpace, num + 3))
					{
						goto IL_010f;
					}
					if (value == Unsafe.AddByteOffset(ref searchSpace, num + 2))
					{
						goto IL_0109;
					}
					if (value == Unsafe.AddByteOffset(ref searchSpace, num + 1))
					{
						goto IL_0103;
					}
					if (value != Unsafe.AddByteOffset(ref searchSpace, num))
					{
						continue;
					}
				}
				else
				{
					if ((nuint)num2 >= (nuint)4u)
					{
						num2 -= 4;
						num -= 4;
						if (value == Unsafe.AddByteOffset(ref searchSpace, num + 3))
						{
							goto IL_010f;
						}
						if (value == Unsafe.AddByteOffset(ref searchSpace, num + 2))
						{
							goto IL_0109;
						}
						if (value == Unsafe.AddByteOffset(ref searchSpace, num + 1))
						{
							goto IL_0103;
						}
						if (value == Unsafe.AddByteOffset(ref searchSpace, num))
						{
							goto IL_0100;
						}
					}
					do
					{
						if (num2 != 0)
						{
							num2--;
							num--;
							continue;
						}
						return -1;
					}
					while (value != Unsafe.AddByteOffset(ref searchSpace, num));
				}
				goto IL_0100;
				IL_0109:
				return (int)(num + 2);
				IL_010f:
				return (int)(num + 3);
				IL_0103:
				return (int)(num + 1);
				IL_0100:
				return (int)num;
			}
			return (int)(num + 7);
		}

		public static int IndexOfAny(ref byte searchSpace, byte value0, byte value1, int length)
		{
			nint num = 0;
			nint num2 = length;
			while (true)
			{
				if ((nuint)num2 >= (nuint)8u)
				{
					num2 -= 8;
					uint num3 = Unsafe.AddByteOffset(ref searchSpace, num);
					if (value0 != num3 && value1 != num3)
					{
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 1);
						if (value0 == num3 || value1 == num3)
						{
							goto IL_019b;
						}
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 2);
						if (value0 == num3 || value1 == num3)
						{
							goto IL_01a1;
						}
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 3);
						if (value0 != num3 && value1 != num3)
						{
							num3 = Unsafe.AddByteOffset(ref searchSpace, num + 4);
							if (value0 != num3 && value1 != num3)
							{
								num3 = Unsafe.AddByteOffset(ref searchSpace, num + 5);
								if (value0 != num3 && value1 != num3)
								{
									num3 = Unsafe.AddByteOffset(ref searchSpace, num + 6);
									if (value0 != num3 && value1 != num3)
									{
										num3 = Unsafe.AddByteOffset(ref searchSpace, num + 7);
										if (value0 == num3 || value1 == num3)
										{
											break;
										}
										num += 8;
										continue;
									}
									return (int)(num + 6);
								}
								return (int)(num + 5);
							}
							return (int)(num + 4);
						}
						goto IL_01a7;
					}
				}
				else
				{
					if ((nuint)num2 >= (nuint)4u)
					{
						num2 -= 4;
						uint num3 = Unsafe.AddByteOffset(ref searchSpace, num);
						if (value0 == num3 || value1 == num3)
						{
							goto IL_0198;
						}
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 1);
						if (value0 == num3 || value1 == num3)
						{
							goto IL_019b;
						}
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 2);
						if (value0 == num3 || value1 == num3)
						{
							goto IL_01a1;
						}
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 3);
						if (value0 == num3 || value1 == num3)
						{
							goto IL_01a7;
						}
						num += 4;
					}
					while (true)
					{
						if (num2 != 0)
						{
							num2--;
							uint num3 = Unsafe.AddByteOffset(ref searchSpace, num);
							if (value0 == num3 || value1 == num3)
							{
								break;
							}
							num++;
							continue;
						}
						return -1;
					}
				}
				goto IL_0198;
				IL_01a1:
				return (int)(num + 2);
				IL_019b:
				return (int)(num + 1);
				IL_01a7:
				return (int)(num + 3);
				IL_0198:
				return (int)num;
			}
			return (int)(num + 7);
		}

		public static int IndexOfAny(ref byte searchSpace, byte value0, byte value1, byte value2, int length)
		{
			nint num = 0;
			nint num2 = length;
			while (true)
			{
				if ((nuint)num2 >= (nuint)8u)
				{
					num2 -= 8;
					uint num3 = Unsafe.AddByteOffset(ref searchSpace, num);
					if (value0 != num3 && value1 != num3 && value2 != num3)
					{
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 1);
						if (value0 == num3 || value1 == num3 || value2 == num3)
						{
							goto IL_020a;
						}
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 2);
						if (value0 == num3 || value1 == num3 || value2 == num3)
						{
							goto IL_0210;
						}
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 3);
						if (value0 != num3 && value1 != num3 && value2 != num3)
						{
							num3 = Unsafe.AddByteOffset(ref searchSpace, num + 4);
							if (value0 != num3 && value1 != num3 && value2 != num3)
							{
								num3 = Unsafe.AddByteOffset(ref searchSpace, num + 5);
								if (value0 != num3 && value1 != num3 && value2 != num3)
								{
									num3 = Unsafe.AddByteOffset(ref searchSpace, num + 6);
									if (value0 != num3 && value1 != num3 && value2 != num3)
									{
										num3 = Unsafe.AddByteOffset(ref searchSpace, num + 7);
										if (value0 == num3 || value1 == num3 || value2 == num3)
										{
											break;
										}
										num += 8;
										continue;
									}
									return (int)(num + 6);
								}
								return (int)(num + 5);
							}
							return (int)(num + 4);
						}
						goto IL_0216;
					}
				}
				else
				{
					if ((nuint)num2 >= (nuint)4u)
					{
						num2 -= 4;
						uint num3 = Unsafe.AddByteOffset(ref searchSpace, num);
						if (value0 == num3 || value1 == num3 || value2 == num3)
						{
							goto IL_0207;
						}
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 1);
						if (value0 == num3 || value1 == num3 || value2 == num3)
						{
							goto IL_020a;
						}
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 2);
						if (value0 == num3 || value1 == num3 || value2 == num3)
						{
							goto IL_0210;
						}
						num3 = Unsafe.AddByteOffset(ref searchSpace, num + 3);
						if (value0 == num3 || value1 == num3 || value2 == num3)
						{
							goto IL_0216;
						}
						num += 4;
					}
					while (true)
					{
						if (num2 != 0)
						{
							num2--;
							uint num3 = Unsafe.AddByteOffset(ref searchSpace, num);
							if (value0 == num3 || value1 == num3 || value2 == num3)
							{
								break;
							}
							num++;
							continue;
						}
						return -1;
					}
				}
				goto IL_0207;
				IL_0207:
				return (int)num;
				IL_0210:
				return (int)(num + 2);
				IL_020a:
				return (int)(num + 1);
				IL_0216:
				return (int)(num + 3);
			}
			return (int)(num + 7);
		}

		public static int LastIndexOfAny(ref byte searchSpace, byte value0, byte value1, int length)
		{
			nint num = length;
			nint num2 = length;
			while (true)
			{
				if ((nuint)num2 >= (nuint)8u)
				{
					num2 -= 8;
					num -= 8;
					uint num3 = Unsafe.AddByteOffset(ref searchSpace, num + 7);
					if (value0 == num3 || value1 == num3)
					{
						break;
					}
					num3 = Unsafe.AddByteOffset(ref searchSpace, num + 6);
					if (value0 == num3 || value1 == nu