Issue #11212 has been reported by Koichi Sasada.

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Bug #11212: defined?(foo()) ignores respond_to_missing?
https://bugs.ruby-lang.org/issues/11212

* Author: Koichi Sasada
* Status: Open
* Priority: Normal
* Assignee: Yukihiro Matsumoto
* ruby -v: 2.3dev
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
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```ruby
class C
  def respond_to_missing? *args
    true
  end

  def test
    p defined?(non_exist_method())
  end
end

C.new.test
```

This script prints only `nil`. It ignores `respond_to_missing?`.
It should be a bug.




-- 
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