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[Bug 12458] Interface objects should be Functions

From: <bugzilla@jessica.w3.org>
Date: Mon, 23 May 2011 03:48:33 +0000
To: public-script-coord@w3.org
Message-Id: <E1QOM89-0005s2-5E@jessica.w3.org>

--- Comment #11 from Mark S. Miller <erights@gmail.com> 2011-05-23 03:48:32 UTC ---
(In reply to comment #10)
> Another point is that interface objects also have to respond to [[HasInstance]]
> (so that you can do `document instanceof Node`), which for native objects is
> only defined for Functions.  The current Proxy proposal does not support a trap
> for [[HasInstance]], 

is a strawman that may enable that. Not accepted yet, so just FYI.

> nor does it have trap that would allow an interface object
> implemented as a Function object to return "object" when typeof is applied to
> it.  This is another issue that would prevent pure JS implementations of the
> DOM, which some people want to do.

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Received on Monday, 23 May 2011 03:48:34 UTC

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