using System.Collections;
using System.Collections.Generic;
using System.Runtime.Serialization.Formatters;
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using System.Collections.ObjectModel;
using Newtonsoft.Json.Linq;
using Newtonsoft.Json.Converters;
using Newtonsoft.Json.Serialization;
public static void Test()
static string GetJson() => @"
public static partial class JsonExtensions
public static JsonReader AssertTokenType(this JsonReader reader, JsonToken tokenType) =>
reader.TokenType == tokenType ? reader : throw new JsonSerializationException(string.Format("Unexpected token {0}, expected {1}", reader.TokenType, tokenType));
public static JsonReader ReadToContentAndAssert(this JsonReader reader) =>
reader.ReadAndAssert().MoveToContentAndAssert();
public static JsonReader MoveToContentAndAssert(this JsonReader reader)
throw new ArgumentNullException();
if (reader.TokenType == JsonToken.None)
while (reader.TokenType == JsonToken.Comment)
public static JsonReader ReadAndAssert(this JsonReader reader)
throw new ArgumentNullException();
throw new JsonReaderException("Unexpected end of JSON stream.");
public static void Main()
Console.WriteLine("Environment version: {0} ({1})", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , Environment.Version);
Console.WriteLine("{0} version: {1}", typeof(JsonSerializer).Assembly.GetName().Name, typeof(JsonSerializer).Assembly.FullName);
Console.WriteLine("Failed with unhandled exception: ");