On 2006-05-19, at 11:28 EDT, Jim Grandy wrote: > On May 19, 2006, at 3:06 AM, P T Withington wrote: > >> Henry stumbled on a gray area in our traits implementation: What >> should happen if you try to instantiate a trait? Should it be an >> error, or should it default to creating an anonymous class with >> Instance as the superclass? > > I think it should be an error. It doesn't make sense to instantiate > a trait -- what would be the base class? (And don't say Object -- > the point of Traits is that they don't inherit from anything.)
The specific example is LzDataElement, which wants to be instantiable, but also be able to be mixed in to LzDataset. If it is an error, we have to define LzDataElementTrait, which has all the properties LzDataElement used to, and define LzDataElement as having that as a trait. I'm not campaigning one way or another, but it makes for a little extra code on the programmer's part. _______________________________________________ Laszlo-dev mailing list [email protected] http://www.openlaszlo.org/mailman/listinfo/laszlo-dev
