On 2015/10/05 16:44:56, caitp wrote:
On 2015/10/05 16:41:14, adamk wrote:
> I'm happy that Toon is happy with this approach. I'm still a bit worried
about
> the "not yet specced" part, though, especially as we're adding this new
behavior
> to existing Symbols. Is there a reason not to start this with only
allowing
> window[@@isConcatSpreadable] to return undefined?
If it's necessary, we could turn off this special handling by simply not
setting
the well-known symbol bit during native context setup, so that seems like
it's
probably okay.
To only enable this for @@isConcatSpreadable, that's pretty easy too
Anyways, I've added a patch set which limits the special-casing to just
@@IsConcatSpreadable, and it should be trivial to add other symbols as
needed.
https://codereview.chromium.org/1230793002/
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