JsonPrimitiveContract
Contract details for a  Type used by the  JsonSerializer.
            
                using Newtonsoft.Json.Utilities;
using System;
using System.Collections.Generic;
namespace Newtonsoft.Json.Serialization
{
    public class JsonPrimitiveContract : JsonContract
    {
        private static readonly Dictionary<Type, ReadType> ReadTypeMap = new Dictionary<Type, ReadType> {
            [typeof(byte[])] = ReadType.ReadAsBytes,
            [typeof(byte)] = ReadType.ReadAsInt32,
            [typeof(short)] = ReadType.ReadAsInt32,
            [typeof(int)] = ReadType.ReadAsInt32,
            [typeof(decimal)] = ReadType.ReadAsDecimal,
            [typeof(bool)] = ReadType.ReadAsBoolean,
            [typeof(string)] = ReadType.ReadAsString,
            [typeof(DateTime)] = ReadType.ReadAsDateTime,
            [typeof(DateTimeOffset)] = ReadType.ReadAsDateTimeOffset,
            [typeof(float)] = ReadType.ReadAsDouble,
            [typeof(double)] = ReadType.ReadAsDouble
        };
        internal PrimitiveTypeCode TypeCode { get; set; }
        public JsonPrimitiveContract(Type underlyingType)
            : base(underlyingType)
        {
            ContractType = JsonContractType.Primitive;
            TypeCode = ConvertUtils.GetTypeCode(underlyingType);
            IsReadOnlyOrFixedSize = true;
            if (ReadTypeMap.TryGetValue(NonNullableUnderlyingType, out ReadType value))
                InternalReadType = value;
        }
    }
}