On Jun 15, 2014, at 11:45 PM, Tom Van Cutsem wrote:
> 2014-06-13 19:21 GMT+02:00 Allen Wirfs-Brock <al...@wirfs-brock.com>:
> Anotherconcern I have with @@new, it that it exposes two extension points,
> @@new and @@create, on very constructor. I'm afraid that it wouldn't be very
> clear to most ES programmers when you should over-ride one or the other.
>
> Smalltalk has both extension points (#new and #initialize). I think JS
> programmers could handle this just as well.
and #basicNew. It seeded to me that many Smalltalk programmer were unclear
about when to over-ride #new vs when to over-ride #basicNew.
>
> Finally, let's say that for ES6 we eliminate [[Construct]] without adding
> @@new. If after some experience we find that @@new is really needed we can
> easily add it in a backwards compatible manner.
>
> By that time, the community will have developed its own set of work-arounds,
> as it always does.
>
> In any case, I believe you're probably right that @@create + constructor
> invocation is sufficient for most use cases. The crucial step is that if the
> constructor returns an object, this is the object returned by |new
> C(...args)|. This way, the constructor can always return a cached object and
> ignore whatever dummy object was created by @@create. Correct?
right.
Allen
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