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[abandoned] C extensions monkeypatching ActiveSupport for improved perfomance
Ruby C
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MonkeySupport is a collection of monkeypatches to Rails, replacing existing methods with (somewhat) optimized C equivalents.

If this interests you, you should also check out methodmissing's excellent HashWithIndifferentAccess at .


MonkeySupport is largely a bunch of modules, each overwriting a part of ActiveSupport. By setting $MonkeyModuleExcludes to an array of module names before loading MonkeySupport, those modules will not be loaded. For example:

$MonkeyModuleExcludes = ["inflector", "output_safety"]
require 'monkeysupport'

You can also specify a whitelist of modules to load with $MonkeyModuleIncludes, if you'd like. Typically, leaving both these variables undefined is what you'll want, though.

MonkeySupport is currently comprised of the following modules:

  • inflector
  • output_safety

Note on Patches/Pull Requests

  • Fork the project.
  • Make your feature addition or bug fix.
  • Add tests for it. This is important so I don't break it in a future version unintentionally.
  • Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
  • Send me a pull request. Bonus points for topic branches.


There are some simple specs in ./spec. To run against the activesupport test suite, add require 'monkeysupport' below the activesupport requires in activesupport's Rakefile. and rake away.

Problems / TODO

  • Certain functions used to be memoized, then rails added test cases for adding new inflections on the fly. The memoization is currently disabled, but could be tweaked to be invalidated when the inflection rules change.
  • Need to do a better job of identifying ruby versions for output_safety module.
  • There's always more to port...


Copyright (c) 2009 Burke Libbey. MIT License. See LICENSE for details.