[ruby-core:117145] [Ruby master Feature#20293] Add `Warning.categories` method that returns the warning category names
From:
"nobu (Nobuyoshi Nakada) via ruby-core" <ruby-core@...>
Date:
2024-03-14 08:58:50 UTC
List:
ruby-core #117145
Issue #20293 has been updated by nobu (Nobuyoshi Nakada).
https://github.com/ruby/ruby/pull/10069
----------------------------------------
Feature #20293: Add `Warning.categories` method that returns the warning category names
https://bugs.ruby-lang.org/issues/20293#change-107226
* Author: nobu (Nobuyoshi Nakada)
* Status: Open
----------------------------------------
I propose a new method `Warning.categories`.
This would be useful (or necessary) for tests mainly.
Currently, `EnvUtil.capture_global_values` saves the original warning settings as followings:
```ruby
@original_warning = defined?(Warning.[]) ? %i[deprecated experimental].to_h {|i| [i, Warning[i]]} : nil
```
But this is wrong now; `performance` is missing.
So we need:
```ruby
@original_warning = if defined?(Warning.[]) # 2.7+
%i[deprecated experimental performance].to_h do |i|
[i, begin Warning[i]; rescue ArgumentError; end]
end.compact
end
```
That means this list is version dependent and we will need to maintain this list in future.
We need another surefire way.
--
https://bugs.ruby-lang.org/
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