Src/Newtonsoft.Json/Converters/ExpandoObjectConverter.cs

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#if !(NET35 || NET20 || WINDOWS_PHONE)

using System;
using System.Collections.Generic;
using System.Dynamic;
using System.Globalization;
using System.Linq;
using System.Text;
using Newtonsoft.Json.Utilities;

namespace Newtonsoft.Json.Converters
{
  /// <summary>
  /// Converts an ExpandoObject to and from JSON.
  /// </summary>
  public class ExpandoObjectConverter : JsonConverter
  {
    /// <summary>
    /// Writes the JSON representation of the object.
    /// </summary>
    /// <param name="writer">The <see cref="JsonWriter"/> to write to.</param>
    /// <param name="value">The value.</param>
    /// <param name="serializer">The calling serializer.</param>
    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
    {
      // can write is set to false
    }

    /// <summary>
    /// Reads the JSON representation of the object.
    /// </summary>
    /// <param name="reader">The <see cref="JsonReader"/> to read from.</param>
    /// <param name="objectType">Type of the object.</param>
    /// <param name="existingValue">The existing value of object being read.</param>
    /// <param name="serializer">The calling serializer.</param>
    /// <returns>The object value.</returns>
    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
      return ReadValue(reader);
    }

    private object ReadValue(JsonReader reader)
    {
      while (reader.TokenType == JsonToken.Comment)
      {
        if (!reader.Read())
          throw new Exception("Unexpected end.");
      }

      switch (reader.TokenType)
      {
        case JsonToken.StartObject:
          return ReadObject(reader);
        case JsonToken.StartArray:
          return ReadList(reader);
        default:
          if (JsonReader.IsPrimitiveToken(reader.TokenType))
            return reader.Value;

          throw new Exception("Unexpected token when converting ExpandoObject: {0}".FormatWith(CultureInfo.InvariantCulture, reader.TokenType));