Stéphane Ducasse wrote:
>
> stan
>
> as one of the trait "guy" we should consider that
> - probably what we got can be improved
> for example I was discussing about the implementation in
> javascript and
> tom is proposing to have a
> a shallow rename of methods + adding a requirement instead of
> an alias
> (this way you can limit the interface explosion)
>
> - I did not like the stateful traits even if this is my idea.
> what we tried to do what do make sure that we do not have to recompile
> the code in each user.
> Now since methods are not shared (I'm sad about that) between trait user
> then we could recompile
> the methods for each user and users could have different states and
> state
> layout.
>
> - for state the question in initialize: how do we initialize trait state
> in the composite in an elegant way
> in ambianttalk we get
> T1>>initialize
> T2>>initialize
> C
> T1 initialize -> T1init
> T2 initialize -> T2init
> and initialize
> self T1init.
> self T2init
>
> - for Plug like delegatee we are working with people from KUL on
> understanding a kind of subobject trait based approach.
> We will send information when the paper is published. But you can read
> the ecoop paper of marko van dooren
>
>
> - Did you check the solution proposed in VW to have state in traits?
> I do not remember it (shame on my weak memory)
>
No, I didn't get to that one.
>>
>> To test out the possibilities of using traits for refactoring, I had a go
>> at
>> rationalising OmniBrowser/OmniBrowser2.
>
> Good! I like the idea to have traits shared between browser.
>
It's possible to try out the 'semi-healed' version. In a new image:
Gofer new squeaksource: 'MetacelloRepository';
package:'ConfigurationOfHealer';
load.
((Smalltalk at: #ConfigurationOfHealedOmniBrowser) project version:
'0.6-baseline') load .
Not recommended on your production system.
>
> This showed up that it appears to be possible to use the current traits
> implementation in a 'quasi-stateful' manner. that is, you can directly
> address the variables of a trait's 'hosting' class. This is rather
> contrary
> to my previous understanding of stateless traits. Is this normal
> behaviour?
>
> I've written up the details here.
>
> http://neat-sheet.com/development-blog.html/
>
> ...Stan
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