Issue #7993 has been updated by nagachika (Tomoyuki Chikanaga).

Backport changed from 1.9.3: DONTNEED, 2.0.0: REQUIRED to 1.9.3: DONTNEED, 2.0.0: DONE

r44175 and r44179 were backported to ruby_2_0_0 at r44345, and additionally r44198 was backported at 44366.
See #9236 too.
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Bug #7993: owner of methods defined after using Module#prepend
https://bugs.ruby-lang.org/issues/7993#change-43939

Author: no6v (Nobuhiro IMAI)
Status: Closed
Priority: Normal
Assignee: 
Category: core
Target version: 
ruby -v: RUBY_DESCRIPTION # => "ruby 2.1.0dev (2013-03-01 trunk 39546) [x86_64-linux]"
Backport: 1.9.3: DONTNEED, 2.0.0: DONE


=begin
The owner of methods defined after using Module#prepend seems to be incorrect.

 RUBY_DESCRIPTION # => "ruby 2.1.0dev (2013-03-01 trunk 39546) [x86_64-linux]"
 
 class C
   attr_reader :a
   prepend Module.new
   attr_reader :b
 end
 C.instance_method(:a).owner # => C
 C.instance_method(:b).owner # => #<C:0x00000000a52300>
 C.new.method(:a).owner      # => C
 C.new.method(:b).owner      # => #<C:0x00000000a52300>
 
 module M
   attr_reader :a
   prepend Module.new
   attr_reader :b
 end
 M.instance_method(:a).owner # => M
 M.instance_method(:b).owner # =>
 # ~> -:19:in `<main>': undefined method `class' for #<M:0x00000000a515b8> (NoMethodError)
=end


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