Issue #12251 has been updated by matz (Yukihiro Matsumoto).


Hmm, it was caused by OpenStruct performance pull-request. Maybe we should revert the PR?

Matz.


----------------------------------------
Bug #12251: DelegateClass(OpenStruct) behavior in 2.3.0 different from 2.2
https://bugs.ruby-lang.org/issues/12251#change-84404

* Author: dblock (Daniel Doubrovkine)
* Status: Open
* Priority: Normal
* ruby -v: ruby 2.3.0p0 (2015-12-25 revision 53290) [x86_64-darwin15]
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
This came from https://github.com/ruby-grape/grape/issues/1348

~~~
require 'delegate'
require 'ostruct'

class AttributeTranslator < DelegateClass(OpenStruct)
  def initialize(attributes = {})
    ostruct = OpenStruct.new(attributes)
    super ostruct
  end
end

def namespace
  'foobar'
end

instance = AttributeTranslator.new(namespace: '/')
puts instance.namespace
~~~

Ruby 2.2.1

=> '/'

Ruby 2.3.0

=> 'foobar'

Halp?



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