Bug #15274: Reflection does not report methods defined only in refinements

• Status: Closed
• Assignee: -
• Target version: -
• Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN

[pitr.ch (Petr Chalupa)]

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.

[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.