MongoDB.Bson.LazyBsonDocument.MaterializeThisLevel C# (CSharp) Method

        private IEnumerable<BsonElement> MaterializeThisLevel()
        {
            var elements = new List<BsonElement>();
            var readerSettings = _readerSettings.Clone();
            readerSettings.MaxDocumentSize = _slice.Length;
            using (var bsonReader = new BsonBinaryReader(new BsonBuffer(CloneSlice(), true), true, readerSettings))
            {
                bsonReader.ReadStartDocument();
                BsonType bsonType;
                while ((bsonType = bsonReader.ReadBsonType()) != BsonType.EndOfDocument)
                {
                    var name = bsonReader.ReadName();
                    BsonValue value;
                    switch (bsonType)
                    {
                        case BsonType.Array: value = DeserializeLazyBsonArray(bsonReader); break;
                        case BsonType.Document: value = DeserializeLazyBsonDocument(bsonReader); break;
                        default: value = (BsonValue)BsonValueSerializer.Instance.Deserialize(bsonReader, typeof(BsonValue), null); break;
                    }
                    elements.Add(new BsonElement(name, value));
                }
                bsonReader.ReadEndDocument();
            }

            return elements;
        }
    }