[ruby-core:76188] [Ruby trunk Feature#12079] Loosening the condition for refinement

Issue #12079 has been updated by Yukihiro Matsumoto.


I agree that would be nicer to users. My concern is performance penalty.

Matz.


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Feature #12079: Loosening the condition for refinement
https://bugs.ruby-lang.org/issues/12079#change-59400

* Author: Tsuyoshi Sawada
* Status: Assigned
* Priority: Normal
* Assignee: Yukihiro Matsumoto
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There are a few non-standard ways of calling a method that cannot be used when the relevant method is a refined method:

* a symbol used with `&` as a block via symbol to proc
* a symbol used with `send` or `__send__`

For example, the following will fail:

~~~RUBY
    module Foo
      refine String
        def baz; end
      end
    end

    using Foo
    ["a", "b", "c"].map(&:baz) # => undefined method error
    "a".send(:baz) # => undefined method error
~~~

I would like to propose to loosen the condition for refinement so that as long as the relevant construction (such as the use of `&` to provoke `Symbol#to_proc` or calling of `send` or `__send__`) is within the valid scope of refinement, allow the call to the relevant methods.



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