[Glass] Fwd: Can one get rid of ObsoleteMetaclass instances?

[Dale Henrichs]

[stupid gmail ... user]

---------- Forwarded message ----------
From: Dale Henrichs <dale.henrichs at gemtalksystems.com>
Date: Wed, May 14, 2014 at 8:17 AM
Subject: Re: [Glass] Can one get rid of ObsoleteMetaclass instances?
To: Pieter Nagel <pieter at nagel.co.za>


Pieter,

I'm afraid that at the moment there isn't a good solution available ... as
you've seen there isn't a way to do this via Smaltalk and requires
primitive support.

One of our engineers has suggested that we might be able to do such a
conversion for the 3.3 upgrade and I've submitted an internal bug (44234)
for tracking ...

Dale


On Wed, May 14, 2014 at 6:29 AM, Pieter Nagel <pieter at nagel.co.za> wrote:

> We recently converted to GS3.1 from GS2. Our migration and integrity
> checking infrastructure currently needs to do "(ObsoleteMetaclass
> allInstances, Metaclass3 allInstances) asIdentitySet" to get hold of all
> the metaclasses in our system.
>
> Is there any way remove ObsoleteMetaclass from consideration and ensure
> that we have a repository that contains only Metaclass3 instances? Or will
> we have to live with this until such time in the future that all classes
> happened to convert by virtue of adding/removing/renaming instvars within
> them?
>
> I know that the actual ObsoleteMetaclass instances get transformed as they
> are faulted in. But this transformation of theirs never gets committed to
> the database, so in then the end they're back to square one, where they
> are Obsoleteclass instances that are only picked up by "ObsoleteMetaclass
> allInstances" and that get converted again when being faulted again.
>
> Is there any way to make the conversion "stick"?
>
>
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