new Magma (was: Dictionaries broken in 3.9a)

stéphane ducasse ducasse at iam.unibe.ch
Thu Sep 22 09:15:44 UTC 2005


Chris

we are planning to remove your fixes from 3.9a.
So let us know your position.

Stef

On 21 sept. 05, at 23:47, Chris Muller wrote:

> In light of the recent discussion regarding nil keys in
> Dictionaries, I have removed the anti-fixes related to this  
> (including the
> #associationsDo: override in WeakKeyIdentityDictionary) from their  
> "System
> overrides for ma object serialization" package of Magma.
>
> Magma is back to 100% pure*, making no system changes that have not  
> been
> approved for at least 3.9.
>
> [*] I left the 3.9-approved fixes in, however, for <= 3.8 users.
>
> I have also removed all use of Ma*Dictionary's.  They were written  
> to fix the
> performance bug with #removeKey: for which they are 1000x (or more)  
> faster than
> their standard counterparts but are a bit slower for other  
> operations.  Magma
> now avoids removeKey: altogether, so going back to the standard  
> Dictionary's
> you should enjoy a minor performance improvement.
>
> A few more improvements too:
>
> - More robust network error handling for when other end drops  
> unexpectedly.
> - Tests now only open transcript in conductor image.  Besides being  
> faster,
> Squeak was locking up loading a font or something, no time to debug  
> it.
> - Fixed possible error when opening partially-written  
> commitPackages file.
>
> Let me know if any questions or issues.
>
>  - Chris
>
>




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