From: "jemc (Joe McIlvain)" <joe.eli.mac@...>
Date: 2014-01-07T16:15:03+09:00
Subject: [ruby-core:59619] [ruby-trunk - Bug #9377][Open] Seg fault on call	of missing super from self.extended in a Module


Issue #9377 has been reported by jemc (Joe McIlvain).

----------------------------------------
Bug #9377: Seg fault on call of missing super from self.extended in a Module
https://bugs.ruby-lang.org/issues/9377

Author: jemc (Joe McIlvain)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: 2.1.0
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN


Seg fault on call of missing super from self.extended in a Module
on 2.1.0-p0 and on 2.1.0-dev
x86_64 linux

Code to reproduce:

```
module A
  def foo; super end
  
  def self.extended(obj)
    instance_method(:foo).bind(obj).call
  end
end

Object.new.extend A
```
(stack trace is attached)

Note that calling from after extend is okay: (but raises missing super error)

```
module A
  def foo; super end
end

Object.new.extend(A).foo #=> in `foo': super: no superclass method `foo' for #<Object:0x007fabf43d2730> (NoMethodError)
```

Also note that calling from within the extend as before, but having the method defined is also okay (and raises no error)

```
module ABase
  def foo; end
end

module A
  include ABase
  def foo; super end
  
  def self.extended(obj)
    instance_method(:foo).bind(obj).call
  end
end

Object.new.extend A
```


-- 
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