rails/activesupport
Hartley McGuire 2dd3164c8c
Add Symbol#blank? to skip respond_to?(:empty?)
Any classes that don't implement #blank? will fall back to Object's
implementation, which checks whether #empty? is defined before either
using #empty? or implicit truthiness. Since checking whether #empty? is
defined is expensive, some core classes (Array/Hash) alias #blank?
directly to #empty? to skip the respond_to? check.

This commit applies the alias optimization to Symbol. #blank? is called
on Symbols for many Active Record query methods (select, includes,
group, order, joins, etc.) so it seems reasonable to define the #blank?
alias on Symbol as well.
2023-10-24 23:20:30 -04:00
..
bin Remove AS::Multibyte's unicode table 2018-02-20 03:58:22 +09:00
lib Add Symbol#blank? to skip respond_to?(:empty?) 2023-10-24 23:20:30 -04:00
test Fix Object.with test class name typo 2023-10-24 07:51:40 -07:00
.gitignore Clean up and consolidate .gitignores 2018-02-17 14:26:19 -08:00
activesupport.gemspec Drop dependency on mutex_m 2023-10-18 14:27:26 +02:00
CHANGELOG.md Fix BroadcastLogger#dup so that it duplicates the logger's broadcasts. 2023-10-23 18:12:28 -04:00
MIT-LICENSE Remove Copyright years (#47467) 2023-02-23 11:38:16 +01:00
Rakefile Stop testing hiredis 2022-08-22 09:01:27 +02:00
README.rdoc 🔗 Remove RDoc auto-link from Rails module everywhere 2023-06-23 10:49:30 +09:00

= 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://guides.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