Issue #10342 has been updated by Nobuyoshi Nakada.

Related to misc #10339: normalize reference to Timeout::Error added

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Feature #10342: Module#deprecate_constant
https://bugs.ruby-lang.org/issues/10342#change-49295

* Author: Nobuyoshi Nakada
* Status: Open
* Priority: Normal
* Assignee: Yukihiro Matsumoto
* Category: core
* Target version: current: 2.2.0
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Proposal for `Module#deprecate_constant`, which marks constants referred by arguments as deprecated.

~~~ruby
class C
  FOO = 1
  deprecate_constant :FOO
end
C::FOO #=> warning: constant C::FOO is deprecated
~~~

https://github.com/nobu/ruby/compare/Module%23deprecate_constant



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