From: bhz <bhznospam@...>
Date: 2009-02-15T18:43:26+09:00
Subject: Re: Frozen OpenStruct allows modification

On Sun, 15 Feb 2009 00:59:20 +0100, Robert Klemme wrote:

> On 15.02.2009 00:18, Stefan Lang wrote:
>> 2009/2/14 bhz <bhznospam@yahoo.com>:
>>> Why does OpenStruct allow modification after it has been frozen? Output is
>>> 20 in both ruby 1.8.6 and 1.9:
>>>
>>> require 'ostruct'
>>>
>>> a = OpenStruct.new()
>>> a.foo = 10
>>> a.freeze()
>>> a.foo = 20
>>> puts a.foo
>> 
>> Because the OpenStruct instance is never modified here,
>> only the internal hash it uses to store attribute values.
>> The internal hash is not frozen, only the OpenStruct instance
>> itself.
> 
> That could still be considered a bug and IMHO it is.
> 
> Kind regards
> 
> 	robert

Agreed.