////////////////////////////////////////////////////////////////////////////////////////////////////

        private static void Recurse(object obj, JsonBuilder json, int depth)
        {
            if (obj == null)
            {
                json.Value("null");
                return;
            }

            depth++;

            var type = obj.GetType();

            // primitives

            if (type == typeof(string))
            {
                json.Value(JsonTypeConverters.EscapedString(obj as string));
            }
            else if (type.IsPrimitive)
            {
                if (type == typeof(bool))
                {
                    json.Value(obj.ToString().ToLower());
                }
                else if (type == typeof(char))
                {
                    json.Value(JsonTypeConverters.EscapedString(obj.ToString()));
                }
                else
                {
                    json.Value(obj.ToString());
                }
            }

            // custom

            else if (mConverters.HasOverride(type))
            {
                json.Value(mConverters.Serialise(obj));
            }

            // enum

            else if (type.IsEnum)
            {
                json.Value(JsonTypeConverters.EscapedString(Enum.GetName(type, obj)));
            }

            else if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Dictionary <,>))
            {
                json.BeginObject();

                var dict = obj as IDictionary;

                foreach (var key in dict.Keys)
                {
                    json.Name(key.ToString());

                    if (depth == 1)
                    {
                        Recurse(dict[key], json, depth);
                    }
                    else
                    {
                        json.Value("{}");
                    }
                }

                json.EndObject();
            }


            // arrays

            else if (typeof(IEnumerable).IsAssignableFrom(type))
            {
                json.BeginArray();

                if (depth <= 2)
                {
                    foreach (var child in obj as IEnumerable)
                    {
                        Recurse(child, json, depth);
                    }
                }

                json.EndArray();
            }
            else if (type.IsArray)
            {
                json.BeginArray();

                if (depth <= 2)
                {
                    if (type.GetArrayRank() == 1)
                    {
                        foreach (var elem in obj as Array)
                        {
                            Recurse(elem, json, depth);
                        }
                    }
                }

                json.EndArray();
            }

            // objects

            else if (type.IsValueType)
            {
                json.BeginObject();

                foreach (var field in type.GetFields(BindingFlags.Instance | BindingFlags.Public))
                {
                    var value = field.GetValue(obj);

                    json.Name(field.Name);
                    json.Value(JsonTypeConverters.SerialiseValueType(value));
                }

                json.EndObject();
            }

            else if (type.IsClass)
            {
                ReflectObject(obj, json, depth);
            }

            // unknown type!

            else
            {
                json.Value("null");
            }
        }