[Laszlo-dev] For Review: Change 41430 Summary:Experimental traits implementation for lps-dev
P T Withington
ptw at openlaszlo.org
Thu Apr 13 14:34:37 EDT 2006
On 2006-04-13, at 12:43 EDT, Jim Grandy wrote:
>> In my prototype, I just used the superclass parameter to pass
>> traits: if it is a list, all but the last element are traits and
>> the last is the superclass. I liked this because it expresses the
>> precedence of the traits/superclass. Maybe that is a better
>> syntax than having a separate traits list?
> I'm not sure. I like that it shows the precedence, but having just
> a list of terms with the last one a class doesn't expose the traits-
> followed-by-class structure very well -- it's tough to read if you
> are new to the language. Maybe if the traits were comma-delimited,
> but there was a colon between traits and class?
> <class name="activeview" extends="drawable, clickable, draggable :
> I should point out that this list order is the opposite of what it
> is in the current proposal, but it reads well: the traits sit
> between the class being declared and its superclass.
I like the comma separation, not the colon, I think it enough that
the class is the final element. It would be an error to have a a
class in other than the final element or a class as other than the
Anyone else have an opinion?
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