On Mon, Aug 26, 2013 at 3:02 PM, Allen Wirfs-Brock <[email protected]> wrote: > > On Aug 26, 2013, at 11:37 AM, Erik Arvidsson wrote: > >> I agree that this is crucial. I think that tips the balance over to >> have to do the Get of @@unscopable on every HasBinding. > > How so. The timing of the @@unscopable property and the the process of using > it to filter identifier binding are completely separable procedures. How does > restricting the filtering to own properties change the rationale for > getting the blacklist property once per 'with' rather than on every variable > reference.
I just felt things got a bit too complicated to spec. I realize now that the complexity is not very different either way. I'm ambivalent which behavior I prefer. Either way solves the use case but dynamic lookup has the benefit that will better handle crazy edge cases like changing @@unscopable and [[Prototype]] within the with statement. -- erik _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
