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rails--rails/activesupport
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Jean Boussier cb82f5f0a4 Fix DescendantTracker.clear on Ruby 3.1 
Previously I assumed it was useless, however I was wrong.

The method is called by the reloader to give the illusion that
the GC is precise. Meaning a class that will be unloaded is
immediately made invisible without waiting for it to be garbage collected.

This is easy to do up to Ruby 3.0 because `DescendantTracker` keeps
a map of all tracked classes.

However on 3.1 we need to use the inverse strategy, we keep a WeakMap
of all the classes we cleared, and we filter the return value of `descendants`
and `subclasses`.

Since `clear` is private API and is only used when reloading is enabled,
to reduce the performance impact in production mode, we entirely remove
this behavior when `config.cache_classes` is enabled.
2021-11-25 17:32:52 +01:00
..
bin
lib Fix DescendantTracker.clear on Ruby 3.1 2021-11-25 17:32:52 +01:00
test Fix DescendantTracker.clear on Ruby 3.1 2021-11-25 17:32:52 +01:00
.gitignore
activesupport.gemspec Fix gemspec 2021-11-15 21:06:21 +00:00
CHANGELOG.md Remove deprecate ActiveSupport::Multibyte::Unicode.default_normalization_form 2021-11-19 23:15:57 +00:00
MIT-LICENSE Bump license years to 2021 [ci skip] 2021-01-01 12:21:20 +09:00
Rakefile allow running each test with pure ruby path/to/test.rb 2019-12-18 08:49:19 -06:00
README.rdoc Rename master to main in all code references 2021-01-19 20:46:33 +00:00

README.rdoc 

= Active Support -- Utility classes and Ruby extensions from Rails

Active Support is a collection of utility classes and standard library
extensions that were found useful for the Rails framework. These additions
reside in this package so they can be loaded as needed in Ruby projects
outside of Rails.

You can read more about the extensions in the {Active Support Core Extensions}[https://edgeguides.rubyonrails.org/active_support_core_extensions.html] guide.

== Download and installation

The latest version of Active Support can be installed with RubyGems:

  $ gem install activesupport

Source code can be downloaded as part of the Rails project on GitHub:

* https://github.com/rails/rails/tree/main/activesupport


== License

Active Support is released under the MIT license:

* https://opensource.org/licenses/MIT


== Support

API documentation is at:

* https://api.rubyonrails.org

Bug reports for the Ruby on Rails project can be filed here:

* https://github.com/rails/rails/issues

Feature requests should be discussed on the rails-core mailing list here:

* https://discuss.rubyonrails.org/c/rubyonrails-core