Bug #19409: Object's shape is reset after a ractor move

• Status: Closed
• Assignee: ko1 (Koichi Sasada)
• Target version: -
• Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN

[luke-gru (Luke Gruber)]

I believe an object should have the same shape after being moved from 1 ractor to another.

class Obj
  attr_accessor :a, :b, :c, :d
  def initialize
    @a = 1
    @b = 2
    @c = 3
  end
end
r = Ractor.new do
  obj = receive
  #p RubyVM::Shape.of(obj)
  obj.d = 4
  p obj.a, obj.b, obj.c, obj.d # gets wrong values due to object shape id being reset on object
end
obj = Obj.new
#p RubyVM::Shape.of(obj)
r.send(obj, move: true)
r.take

[hsbt (Hiroshi SHIBATA)]

• Status changed from Open to Assigned
• Assignee set to ko1 (Koichi Sasada)

[luke-gru (Luke Gruber)]

This has been fixed by https://github.com/ruby/ruby/commit/32c4b0125f9afe11909d1c10e4133e20180e809e, please close. Thanks!

[jeremyevans0 (Jeremy Evans)]

• Status changed from Assigned to Closed