[Zope-CMF] [dev] Re: shared mutable defaults

Yuppie schubbe@web.de
Fri, 07 Feb 2003 15:10:55 +0100

Tres Seaver wrote:
>>*All* subclasses of ActionProviderBase overwrite this default tuple with 
>>a default list. I thought there is a reason for that, but it seems I was 
>>wrong: '_actions' needs to be a sequence, not a list.
>>Does that mean all action providers are broken and should be fixed?
> Hmm, I think so.  I would say that making all those lists into tuples
> should be a no-impact change, and it would make the inttent clearer.

This is now <http://collector.zope.org/CMF/123> .

> Note that the one piece of code which does the Right Thing (TM) is the
> CMFCore/TypesTool.py:  ironically, that code was slated to be ripped out
> after 1.3, and replaced with an APB-derived TypeInformation class (in
> CVS on the 'tseaver-typeinfo_as_apb-branch').  Perhaps we should work
> out whether to merge that branch for 1.4?  I think the only downside is
> that we would need to handle forward-compatibility for old type
> information objects.


BTW: What is the status of chrism-actions-branch? What is it good for?