Project

General

Profile

Actions

Bug #5698

closed

rexml Encoding logic creates unnecessary singleton classes, aliases at runtime

Added by headius (Charles Nutter) about 10 years ago. Updated about 9 years ago.

Status:
Rejected
Priority:
Normal
Assignee:
-
Target version:
ruby -v:
1.8.7 head
[ruby-core:41440]

Description

The logic for switching a given parser to a new encoding currently does the following:

  • Reopens the Encoding module (only on first use of the encoding)
  • Defines two new methods for the encoding being applied (only on first use)
  • Singletonizes the parser object and aliases the encoding-specific methods to "encode" and "decode"

This last phase is unnecessary, but happens at runtime whenever an encoding is applied to a parser. The resulting singletonizing and method aliasing causes cache flushes.

I have created a patch that does not use this singleton logic and which will not cause any singletons or method table updates at steady-state.

https://gist.github.com/1420708

I know 1.8.7 is only in security patch mode, but I thought I'd throw this out there. JRuby will probably apply it to our fork of 1.8.7 stdlib.

Actions

Also available in: Atom PDF