David Bruant wrote:
Le 24/06/2012 14:51, Brendan Eich a écrit :
David Bruant wrote:
Instead of adding a new [[instanceofHint]] internal property, maybe the
[[NativeBrand]] could be reused.
+1 on that, which suggests [[NativeBrandMatch]] instead of
[[InstanceofMatch]].
Your proposal is more general but I think we should extend HasInstance
only very concretely, with what's needed for WebIDL, and probably for
any such system that reflects nominal types.
What form would it take?
The constraints of enabling implementations of WebIDL in pure ES6
(which, on the ES side is bound to the goal of getting rid of host
objects) seems to force towards a general proposal.
One idea: expose [[NativeBrand]] as a private name object available,
depending on implementation details, only to privileged code.
/be
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