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[Bug 16537] Interface types - Implements is ambiguous

From: <bugzilla@jessica.w3.org>
Date: Tue, 27 Mar 2012 15:55:36 +0000
To: public-script-coord@w3.org
Message-Id: <E1SCYkC-0000AR-Ku@jessica.w3.org>

Boris Zbarsky <bzbarsky@mit.edu> changed:

           What    |Removed                     |Added
                 CC|                            |bzbarsky@mit.edu

--- Comment #3 from Boris Zbarsky <bzbarsky@mit.edu> 2012-03-27 15:55:35 UTC ---
> I'm not sure what you want me to return there?

It depends on your binding and DOM implementation, no?

For example, in the JSC bindings for WebKit, static_cast<I*, V.toImpl()> would
be returned in many cases.

In the WebIDL-based Spidermonkey bindings for Gecko, UnwrapDOMObject<I>(V)
would be returned in many cases.

In the old XPIDL-based Spidermonkey bindings for Gecko,
static_cast<I*,JS_GetPrivate(V)> would be returned in many cases.

Basically, you return whatever your DOM implementation internally considers to
be "an instance of I".  For the C++ DOM implementations mentioned above, that
would be a pointer to whatever object type the implementation considers to
implement the interface I internally.  But what you want to return just depends
on your implementation.

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Received on Tuesday, 27 March 2012 15:55:40 UTC

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