# File lib/bson/bson_ruby.rb, line 539 def serialize_string_element(buf, key, val, type) buf.put(type) self.class.serialize_key(buf, key) # Make a hole for the length len_pos = buf.position buf.put_int(0) # Save the string start_pos = buf.position self.class.serialize_cstr(buf, val) end_pos = buf.position # Put the string size in front buf.put_int(end_pos - start_pos, len_pos) # Go back to where we were buf.position = end_pos end