[Pharo-project] syntax highlighting for (stateful) traits (non-local methods)

Toon Verwaest toon.verwaest at gmail.com
Sun Apr 3 13:59:40 CEST 2011

On 04/03/2011 02:29 PM, Alexandre Bergel wrote:
> I guess that what Stef meant is the following:
> One of the problems when sharing code among mixin and stateful-trait application is that the physical layout of instances varies between mixin applications. (Section 6.5 of http://bergel.eu/download/papers/Berg07e-StatefulTraits.pdf)
So as your paper states ... methods may have to be copied down if the 
layout is different. In the case of traits you always flatten out 
methods; and the default traits implementation for Pharo ALWAYS 
recompiles the methods when copying them. I just make sure they get 
recompiled in the installed trait's scope.

Of course in our case there is no such thing as "copying down", since 
traits are flattened, and not part of the hierarchy, such as is the case 
for mixins. So no difficult transformations are required, recompiling is 
good enough.

It would be faster to just update the bytecode indices by decompiling 
and recompiling; but as said before ... that's just work I can't really 
afford at this very moment.


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