[ruby-core:76187] [Ruby trunk Bug#12530][Rejected] Module Refinements

Issue #12530 has been updated by Shugo Maeda.

Status changed from Open to Rejected
Assignee set to Shugo Maeda

This is not a bug, but an expected behavior.
However, changing this behavior is being discussed in #12079.


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Bug #12530: Module Refinements
https://bugs.ruby-lang.org/issues/12530#change-59397

* Author: Pavlo Vavruk
* Status: Rejected
* Priority: Normal
* Assignee: Shugo Maeda
* ruby -v: ruby 2.3.1p112
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
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Hi guys, I noticed strange situation with module refinements.

There is difference with using methods which you refine. 

*User.new.users* will return ["a", "b", "c", "d%"]
*User.new.users_not_work* will fail with error  **"undefined method `apply_user_name!' for "a":String"**


     module Punctuations
        refine String do
          COMMON_PUNCTUATION = %w(. , ! ?)

          def apply_user_name!
            chop! if COMMON_PUNCTUATION.include?(last)
          end
        end
      end

      class User
        using Punctuations

        def names
          ["a", "b.", "c!", "d%"]
        end

        def users
          names.each { |word| word.apply_user_name! }
        end

        def users_not_work
          names.each(&:apply_user_name!)
        end
     end



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