From: matz@...
Date: 2018-11-01T14:15:35+00:00
Subject: [ruby-core:89673] [Ruby trunk Bug#15274][Closed] Reflection does not report methods defined only in refinements

Issue #15274 has been updated by matz (Yukihiro Matsumoto).

Status changed from Open to Closed

It's intentional. Refinements are only seen from the lexical scope. That means reflection methods does not see any methods defined only in refinements.

Matz.


----------------------------------------
Bug #15274: Reflection does not report methods defined only in refinements
https://bugs.ruby-lang.org/issues/15274#change-74716

* Author: pitr.ch (Petr Chalupa)
* Status: Closed
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
~~~ ruby
class C
end

module M
  refine C do
    def foo
      puts "C#foo in M"
    end
  end
end

using M

c = C.new
c.foo # prints "C#foo in M"
c.send :foo
p c.respond_to? :foo
p c.methods.include?(:foo)
p C.instance_methods.include?(:foo)
p((c.method(:foo) rescue false))

__END__
Prints:

C#foo in M
C#foo in M
false
false
false
false
~~~

When the refinement M is used I think it would be less surprising if reflection methods (respond_to?, methods, method, instance_methods) report available methods including the ones coming from refinement.



-- 
https://bugs.ruby-lang.org/

Unsubscribe: <mailto:ruby-core-request@ruby-lang.org?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>