[ruby-core:59643] [ruby-trunk - Bug #9377] Seg fault on call of missing super from self.extended in a Module

Issue #9377 has been updated by nobu (Nobuyoshi Nakada).

Description updated


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Bug #9377: Seg fault on call of missing super from self.extended in a Module
https://bugs.ruby-lang.org/issues/9377#change-44169

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


=begin
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
=end



-- 
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