On Sat, Dec 1, 2012 at 2:38 PM, Allen Wirfs-Brock <[email protected]>wrote:
> The simplification I've thought about is eliminating [[Construct]] as an > internal method/Proxy trap and just making the call @@Create/call > consturctor sequence the evaluation semantics of the new operator. But > I've not yet convinced myself that this is sufficient to capture all of the > "called as constructor"/"called as a function" semantic silliness that some > chapter 15 built-ins have. I'm also not sure that DOM and friends don't > have other dependencies on a reified [[Construt]] > The simplification I had in mind was changing [[Construct]] from an internal method/Proxy trap to an ordinary .@@construct method. There would be a @@construct/constructor split rather than a [[Construct]]/@@create/constructor split. But on reflection, it didn't seem like that would be simpler in practice. Having two separately hookable phases of object construction is just right. A class can easily customize either behavior in a way that not only works, but will still work when the class is subclassed further. -j
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