CustomCreationConverter<T>
Creates a custom object.
using System;
using System.Diagnostics.CodeAnalysis;
using System.Runtime.CompilerServices;
namespace Newtonsoft.Json.Converters
{
[System.Runtime.CompilerServices.NullableContext(1)]
[System.Runtime.CompilerServices.Nullable(0)]
[RequiresUnreferencedCode("Newtonsoft.Json relies on reflection over types that may be removed when trimming.")]
[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Newtonsoft.Json relies on dynamically creating types that may not be available with Ahead of Time compilation.")]
public abstract class CustomCreationConverter<[System.Runtime.CompilerServices.Nullable(2)] T> : JsonConverter
{
public override bool CanWrite => false;
public override void WriteJson(JsonWriter writer, [System.Runtime.CompilerServices.Nullable(2)] object value, JsonSerializer serializer)
{
throw new NotSupportedException("CustomCreationConverter should only be used while deserializing.");
}
[return: System.Runtime.CompilerServices.Nullable(2)]
public override object ReadJson(JsonReader reader, Type objectType, [System.Runtime.CompilerServices.Nullable(2)] object existingValue, JsonSerializer serializer)
{
if (reader.TokenType == JsonToken.Null)
return null;
T val = Create(objectType);
if (val == null)
throw new JsonSerializationException("No object created.");
serializer.Populate(reader, val);
return val;
}
public abstract T Create(Type objectType);
public override bool CanConvert(Type objectType)
{
return typeof(T).IsAssignableFrom(objectType);
}
}
}