MongoDB.Bson.IO.BsonBinaryWriter.BackpatchSize C# (CSharp) Method

        private void BackpatchSize()
        {
            int size = _buffer.Position - _context.StartPosition;
            if (size > _maxDocumentSizeStack.Peek())
            {
                var message = string.Format("Size {0} is larger than MaxDocumentSize {1}.", size, _maxDocumentSizeStack.Peek());
                throw new Exception(message);
            }
            _buffer.Backpatch(_context.StartPosition, size);
        }