using Newtonsoft.Json.Utilities; using System; using System.Globalization; namespace Newtonsoft.Json { [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Enum | AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Interface | AttributeTargets.Parameter, AllowMultiple = false)] public sealed class JsonConverterAttribute : Attribute { private readonly Type _converterType; public Type ConverterType => _converterType; public JsonConverterAttribute(Type converterType) { if (converterType == (Type)null) throw new ArgumentNullException("converterType"); _converterType = converterType; } internal static JsonConverter CreateJsonConverterInstance(Type converterType) { try { return (JsonConverter)Activator.CreateInstance(converterType); } catch (Exception innerException) { throw new JsonException("Error creating {0}".FormatWith(CultureInfo.InvariantCulture, converterType), innerException); } } } }