From: "Wolfgang Nádasi-Donner" <ed.odanow@...>
Date: 2007-12-07T23:53:12+09:00
Subject: Re: issue with Date class freeze

murphy schrieb:
> Yukihiro Matsumoto wrote:
>>   require 'Date'
>>   d = Date.new
>>   d.freeze
>>   d.to_s # <--- this line fails
>>
>> Date objects are modifies itself to cache calculated result.  Since
>> no other self-modifying methods are exposed, you don't have to freeze
>> it in general.
> I would still consider it a bug.

I think that under this circumstances the error should occur when
applying "freeze", and not when using "to_s" for a frozen object.

If I should never freeze a Date object, then I want to get an
appropriate error message when applying "freeze", and not later
when using other methods of the object.

Wolfgang N��dasi-Donner